CN105820303A - Polyurethane foam used for low-density automobile instrument panel, preparation method and application thereof - Google Patents
Polyurethane foam used for low-density automobile instrument panel, preparation method and application thereof Download PDFInfo
- Publication number
- CN105820303A CN105820303A CN201510006045.4A CN201510006045A CN105820303A CN 105820303 A CN105820303 A CN 105820303A CN 201510006045 A CN201510006045 A CN 201510006045A CN 105820303 A CN105820303 A CN 105820303A
- Authority
- CN
- China
- Prior art keywords
- low
- density
- fascia
- polyurethane foam
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 40
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000012948 isocyanate Substances 0.000 claims abstract description 64
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 64
- 229920005862 polyol Polymers 0.000 claims abstract description 20
- 150000003077 polyols Chemical class 0.000 claims abstract description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 9
- 229920000570 polyether Polymers 0.000 claims abstract description 9
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000005187 foaming Methods 0.000 claims abstract description 5
- 210000003195 fascia Anatomy 0.000 claims description 39
- 101710130081 Aspergillopepsin-1 Proteins 0.000 claims description 32
- 102100031007 Cytosolic non-specific dipeptidase Human genes 0.000 claims description 32
- GTACSIONMHMRPD-UHFFFAOYSA-N 2-[4-[2-(benzenesulfonamido)ethylsulfanyl]-2,6-difluorophenoxy]acetamide Chemical compound C1=C(F)C(OCC(=O)N)=C(F)C=C1SCCNS(=O)(=O)C1=CC=CC=C1 GTACSIONMHMRPD-UHFFFAOYSA-N 0.000 claims description 28
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 27
- 150000005846 sugar alcohols Polymers 0.000 claims description 21
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- GFPGSMZCUAUGGA-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butanedioic acid Chemical compound OCC(CO)(C(O)=O)CC(O)=O GFPGSMZCUAUGGA-UHFFFAOYSA-N 0.000 claims description 6
- 229920000223 polyglycerol Polymers 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 235000019260 propionic acid Nutrition 0.000 claims description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 6
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 4
- SYNPRNNJJLRHTI-UHFFFAOYSA-N 2-(hydroxymethyl)butane-1,4-diol Chemical compound OCCC(CO)CO SYNPRNNJJLRHTI-UHFFFAOYSA-N 0.000 claims description 4
- AEALASXCJOQJJT-UHFFFAOYSA-N OC(C(CC(O)O)CC)O Chemical compound OC(C(CC(O)O)CC)O AEALASXCJOQJJT-UHFFFAOYSA-N 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims 2
- 239000006260 foam Substances 0.000 abstract description 40
- 238000004880 explosion Methods 0.000 abstract description 6
- 229920000642 polymer Polymers 0.000 abstract description 6
- 230000009477 glass transition Effects 0.000 abstract description 2
- 229920005906 polyester polyol Polymers 0.000 abstract 3
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 32
- 239000000463 material Substances 0.000 description 24
- 230000006835 compression Effects 0.000 description 16
- 238000007906 compression Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000009172 bursting Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000000151 deposition Methods 0.000 description 4
- 210000002615 epidermis Anatomy 0.000 description 4
- 239000004620 low density foam Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- LDZCPXNXNLFTLA-UHFFFAOYSA-N 2-ethylpropane-1,1,3-triol Chemical compound CCC(CO)C(O)O LDZCPXNXNLFTLA-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- FNIZFXGEFUUMCK-UHFFFAOYSA-N 3-ethyl-3-(hydroxymethyl)butane-1,1,4-triol Chemical compound C(O)C(CC(O)O)(CC)CO FNIZFXGEFUUMCK-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- CLQZEZFINZCXFG-UHFFFAOYSA-N butane-1,1,4-triol Chemical group OCCCC(O)O CLQZEZFINZCXFG-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to polyurethane foam used for a low-density automobile instrument panel, a preparation method and an application thereof. The polyurethane foam comprises a first component and a second component, the first component comprise polyester polyol, the second component comprises an isocyanate performed polymer and crude isocyanate, and the isocyanate performed polymer is prepolymerized by the crude isocyanate and a straight chain polyol. The polyester polyol is used for substituting the current high-viscosity vinyl polymer grafted polyether polyols, so that the viscosity of the first component is reduced, density is reduced, and the requirement for lightweight of automobile can be satisfied. In the second component, the crude isocyanate and the straight chain polyol are used for prepolymerization to prepare the modified isocyanate performed polymer, then the isocyanate performed polymer and the polyester polyol required by polyurethane foaming in the first component are subjected to a reaction, the foams with low glass-transition temperature are prepared, so that low-temperature explosion performance of the foams is increased.
Description
Technical field
The present invention relates to a kind of fascia polyurethane foam, relate more specifically to a kind of low-density fascia polyurethane foam and its preparation method and application.
Background technology
At present, automotive light weight technology has been trend, and under not affecting original behavior pattern, engineers wishes that each part inside automobile can reduce weight.In interior trim region, fascia occupies bigger weight and space, and therefore, the weight reducing fascia also has considerable influence to the reduction of complete vehicle weight.Wherein, the foam in instrument board occupies constant weight, therefore, reduces instrument board foam density and becomes the direction that engineers falls over each other to study.
It addition, the occupant side of fascia is generally equipped with air bag, air bag is the important tool that occupant protected in there is shock accident by vehicle, and effect is only second to seat belt.When air bag generation explosion, have part energy and absorbed by instrument board.According to air bag frame structure, instrument board weaken situation different with foam tear power, explosion absorbed energy is the most different.And at low temperatures, the froth bed of instrument board can become harder, tear edge becomes big, and the energy absorbing explosion increases, and causes bursting property to decline.Therefore the low temperature bursting property improving foam is also a direction.
Existing fascia polyurethane foam generally includes the first component and second component, wherein, first component includes vinyl polymer graft polyether polyol, including thick isocyanates in second component, both components mix according to a certain percentage can obtain fascia polyurethane foam.Practice have shown that, the density of this fascia polyurethane foam is relatively big, there is the space of reduction further, it addition, when this fascia by polyurethane foam for low temperature environment, time under conditions of the most subzero 30 degree, its bursting property cannot meet requirement.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, it is desirable to provide a kind of low-density fascia polyurethane foam and its preparation method and application, this polyurethane foam has good low temperature bursting property.
The present invention provides a kind of low-density fascia polyurethane foam, including the first component and second component, wherein, this first component includes PEPA, including Isocyanate prepolymers body and thick isocyanates in this second component, described Isocyanate prepolymers body is formed by thick isocyanates and straight chain polyalcohols pre-polymerization.
Described PEPA is highly-branched and the PEPA of high hydroxyl value.
The degree of branching of described PEPA > 0.8, hydroxyl value is 500～800mgKOH/g.It practice, this degree of branching is preferably between 0.81-0.99, select excellent between 0.9-0.95 further.
Described PEPA be by 2,2-dimethylolpropionic acid, 2,2-dihydroxymethyl succinic acid, 2, one or more in 2-dihydromethyl propionic acid and 2, one or more PEPAs being polymerized in 2-dihydroxymethyl butanol, 3,3-dihydroxymethyl propanol, 3,3-dihydroxymethyl pentanediol.
This first component does not include vinyl polymer graft polyether polyol.
Described Isocyanate prepolymers body content in described second component is 5wt%-30wt%.
Described straight chain polyalcohols is the straight chain polyalcohols of high molecular.
The molecular weight 2000～5000 of described straight chain polyalcohols.
Described straight chain polyalcohols is one or more in polytetrahydrofuran polyol, diethylene glycol, glycerol, two polyglycerols and three polyglycerols.
Thick isocyanates in described Isocyanate prepolymers body is 7～8:1 with the mol ratio of straight chain polyalcohols.
The present invention also provides for the preparation method of a kind of low-density fascia polyurethane foam, including: S1, utilize PEPA to form the first component；S2, thick isocyanates and straight chain polyalcohols generation chemical reaction form Isocyanate prepolymers body；S3, Isocyanate prepolymers body and thick isocyanates are mixed to form second component；S4, the first component and second component are mixed to form low-density fascia polyurethane foam.
Described PEPA be by 2,2-dimethylolpropionic acid, 2,2-dihydroxymethyl succinic acid, 2, one or more in 2-dihydromethyl propionic acid and 2, one or more PEPAs being polymerized in 2-dihydroxymethyl butanol, 3,3-dihydroxymethyl propanol, 3,3-dihydroxymethyl pentanediol.
Thick isocyanates in described Isocyanate prepolymers body is 7～8:1 with the mol ratio of straight chain polyalcohols.
Thick isocyanates in described Isocyanate prepolymers body is 60-100 DEG C with the reaction temperature of straight chain polyalcohols.
The present invention provides again the application of a kind of above-mentioned low-density fascia polyurethane foam.
This low-density fascia polyurethane foam has good low temperature foaming properties.
This low-density fascia polyurethane foam has good low temperature foaming properties under 40 degrees below zero-minus 20 degrees.
The present invention utilizes PEPA to substitute existing full-bodied vinyl polymer graft polyether polyol, so that the viscosity of the first component reduces, density reduces, and meets the requirement of automotive light weight technology.The present invention utilizes thick isocyanates and straight chain polyalcohols to carry out pre-polymerization in second component, prepare the Isocyanate prepolymers body of a kind of modification, the most again with the polyurethane foam in the first component needed for PEPA react, prepare the foam of a kind of lower glass transition temperatures, at cryogenic conditions, particularly-30 DEG C, flexible more soft than existing foam, thus improve the low temperature bursting property of foam.
Accompanying drawing explanation
Fig. 1 is the comparison diagram of the average compression displacement of the low-density fascia polyurethane foam of embodiment 1-4.
Detailed description of the invention
Below in conjunction with the accompanying drawings, provide presently preferred embodiments of the present invention, and be described in detail.
Embodiment 1
By 2,2-dihydromethyl propionic acid and 2, it is 0.9 that 2-dihydroxymethyl butanol forms the degree of branching, hydroxyl value is the PEPA of 610mgKOH/g, utilize this PEPA to substitute existing full-bodied vinyl polymer graft polyether polyol on year-on-year basis according to molal weight, thus form the first component (being also called A material).A material viscosity after instead becomes 1250mPa s, original the most instead before be 1912mPa s, reduce 34.6%.The mobility to material that reduces of this viscosity is improved largely.Simultaneously because the hyperbranched molecular structure of this PEPA serves supporting role to the structure of foam, the structural strength of foam does not reduce.Through trial-production, the density of foam reduces 21%, and other performances do not reduce.
Thick isocyanates is as second component (being also called B material).A material and B material mixing, the mixing of foamed machine, cast, synthesize the low-density fascia polyurethane foam of the present invention in instrument panel die.
Then, according to existing standard, foam and epidermis tearing under different conditions the test of stripping power, test process is as follows:
Pretreatment: before test, exemplar regulates 24h in the standard environment that DIN DIN50014-23/50-2 specifies；
Process of the test describes: peel angle 90 °, speed 50mm/min, strip length 100mm, the adhesion values that output is actual；
Sample state: 150 × 50mm, takes from part by 20
Test result such as table 1 below:
As seen from Table 1, the stripping power test result of tearing of low density foam all meets and higher than existing standard.
Then, according to existing standard, prepare the foam sample block of 70 70 10mm sizes, after the depositing of-30 DEG C of 4h at-30 DEG C at foam sample block taken 5 battens at random carry out low temperature compression hardness test, corresponding compression displacement data result such as table 2 below:
Embodiment 2
By 2,2-dihydroxymethyl succinic acid and 3, it is 0.91 that 3-dihydroxymethyl propanol forms the degree of branching, hydroxyl value is the PEPA of 620mgKOH/g, utilize this PEPA to substitute existing full-bodied vinyl polymer graft polyether polyol on year-on-year basis according to molal weight, thus form the first component (being also called A material).A material viscosity after instead becomes 1150mPa s, original the most instead before be 1912mPa s, reduce 39.86%.The mobility of material is improved largely.Simultaneously because the hyperbranched molecular structure of this PEPA serves supporting role to the structure of foam, the structural strength of foam does not reduce.Through trial-production, the density of foam reduces 25%, and other performances do not reduce.
Thick isocyanates and the polytetrahydrofuran polyol generation chemical reaction that molecular weight is 3500 form Isocyanate prepolymers body.Wherein, the mol ratio of thick isocyanates and polytetrahydrofuran polyol is 8:1.Both pre-polymerization 4 hours at 60 DEG C, obtain isocyanates (-NCO) group content 19.86%, the Isocyanate prepolymers body of 5025cps/25 DEG C.
The Isocyanate prepolymers body of 5 parts is joined the thick isocyanates of 95 parts is formed second component (being also called B material).A material and B material mixing, the mixing of foamed machine, cast, synthesize the low-density fascia polyurethane foam of the present invention in instrument panel die.
Then, according to existing standard, foam and epidermis tearing under different conditions the test of stripping power, test process is as follows:
Pretreatment: before test, exemplar regulates 24h in the standard environment that DIN DIN50014-23/50-2 specifies；
Process of the test describes: peel angle 90 °, speed 50mm/min, strip length 100mm, the adhesion values that output is actual；
Sample state: 150 × 50mm, takes from part by 20
Test result such as table 3 below:
As seen from Table 3, the stripping power test result of tearing of low density foam all meets and higher than existing testing standard.
Then, according to existing standard, prepare the foam sample block of 70 70 10mm sizes, after the depositing of-30 DEG C of 4h at-30 DEG C at foam sample block taken 5 battens at random carry out low temperature compression hardness test, corresponding compression displacement data result such as table 4 below:
| Test label | Compression displacement is at preset (compressive load 25N) (mm) | |
| 1 | 5% pre--1 | 4.3 |
| 2 | 5% pre--2 | 4.0 |
| 3 | 5% pre--3 | 4.0 |
| 4 | 5% pre--4 | 3.9 |
| 5 | 5% pre--5 | 3.8 |
| Meansigma methods | 4.0 |
Embodiment 3
By 2,2-dihydroxymethyl succinic acid and 3, it is 0.93 that 3-dihydroxymethyl pentanediol forms the degree of branching, hydroxyl value is the PEPA of 650mgKOH/g, utilize this PEPA to substitute existing full-bodied vinyl polymer graft polyether polyol on year-on-year basis according to molal weight, thus form the first component (being also called A material).A material viscosity after instead becomes 1050mPa s, original the most instead before be 1912mPa s, reduce 45%.The mobility of material is improved largely.Simultaneously because the hyperbranched molecular structure of this PEPA serves supporting role to the structure of foam, the structural strength of foam does not reduce.Through trial-production, the density of foam reduces 29%, and other performances do not reduce.
Thick isocyanates and the polytetrahydrofuran polyol generation chemical reaction that molecular weight is 3500 form Isocyanate prepolymers body.Wherein, the mol ratio of thick isocyanates and polytetrahydrofuran polyol is 7:1.Both pre-polymerization 1 hours at 100 DEG C, obtain isocyanates (-NCO) group content 19.86%, the Isocyanate prepolymers body of 5025cps/25 DEG C.
The Isocyanate prepolymers body of 10 parts is joined the thick isocyanates of 90 parts is formed second component (being also called B material).A material and B material mixing, the mixing of foamed machine, cast, synthesize the low-density fascia polyurethane foam of the present invention in instrument panel die.
Then, according to existing standard, foam and epidermis tearing under different conditions the test of stripping power, test process is as follows:
Pretreatment: before test, exemplar regulates 24h in the standard environment that DIN DIN50014-23/50-2 specifies；
Process of the test describes: peel angle 90 °, speed 50mm/min, strip length 100mm, the adhesion values that output is actual；
Sample state: 150 × 50mm, takes from part by 20
Test result such as table 5 below:
As seen from Table 5, the stripping power test result of tearing of low density foam all meets and higher than existing standard.
Then, according to existing standard, prepare the foam sample block of 70 70 10mm sizes, after the depositing of-30 DEG C of 4h at-30 DEG C at foam sample block taken 5 battens at random carry out low temperature compression hardness test, corresponding compression displacement data result such as table 6 below:
| Test label | Compression displacement is at preset (compressive load 25N) (mm) | |
| 1 | 10% pre--1 | 4.3 |
| 2 | 10% pre--2 | 4.3 |
| 3 | 10% pre--3 | 4.3 |
| 4 | 10% pre--4 | 3.8 |
| 5 | 10% pre--5 | 4.1 |
| Meansigma methods | 4.16 |
Embodiment 4
By 2,2-dihydromethyl propionic acid and 3, it is 0.95 that 3-dihydroxymethyl pentanediol forms the degree of branching, hydroxyl value is the PEPA of 700mgKOH/g, utilize this PEPA to substitute existing full-bodied vinyl polymer graft polyether polyol on year-on-year basis according to molal weight, thus form the first component (being also called A material).A material viscosity after instead becomes 950mPa s, original the most instead before be 1912mPa s, reduce 50.3%.The mobility of material is improved largely.Simultaneously because the hyperbranched molecular structure of this PEPA serves supporting role to the structure of foam, the structural strength of foam does not reduce.Through trial-production, the density of foam reduces 30%, and other performances do not reduce.
Thick isocyanates and the polytetrahydrofuran polyol generation chemical reaction that molecular weight is 3500 form Isocyanate prepolymers body.Wherein, the mol ratio of thick isocyanates and polytetrahydrofuran polyol is 7:1.Both pre-polymerization 1 hours at 100 DEG C, obtain isocyanates (-NCO) group content 19.86%, the Isocyanate prepolymers body of 5025cps/25 DEG C.
The Isocyanate prepolymers body of 30 parts is joined the thick isocyanates of 70 parts is formed second component (being also called B material).A material and B material mixing, the mixing of foamed machine, cast, synthesize the low-density fascia polyurethane foam of the present invention in instrument panel die.
Then, according to existing standard, foam and epidermis tearing under different conditions the test of stripping power, test process is as follows:
Pretreatment: before test, exemplar regulates 24h in the standard environment that DIN DIN50014-23/50-2 specifies；
Process of the test describes: peel angle 90 °, speed 50mm/min, strip length 100mm, the adhesion values that output is actual；
Sample state: 150 × 50mm, takes from part by 20
Test result such as table 7 below:
As seen from Table 5, the stripping power test result of tearing of low density foam all meets and higher than existing standard.
Then, according to existing standard, prepare the foam sample block of 70 70 10mm sizes, after the depositing of-30 DEG C of 4h at-30 DEG C at foam sample block taken 5 battens at random carry out low temperature compression hardness test, corresponding compression displacement data result such as table 8 below:
| Test label | Compression displacement is at preset (compressive load 25N) (mm) | |
| 1 | 30% pre--1 | 4.6 |
| 2 | 30% pre--2 | 4.4 |
| 3 | 30% pre--3 | 4.4 |
| 4 | 30% pre--4 | 3.9 |
| 5 | 30% pre--5 | 4.1 |
| Meansigma methods | 4.3 |
Fig. 1 is embodiment 1,2,3, the comparison diagram of the average compression displacement of the low-density fascia polyurethane foam of 4, can be seen that the difference of the low temperature compression hardness of foam by average compression displacement, and the biggest then hardness of compression displacement is the lowest, foam is the softest, power needed for explosion is the least, is more conducive to explosion, so bursting property is improved.Illustrate that the increase of performed polymer can reduce the hardness of foam and improve low temperature bursting property.Meanwhile, embodiment 1,2,3, the 4 corresponding foam hard reduction percentage ratio calculated by table 9 below:
| Sample | Hardness reduces percentage ratio (%) |
| The most pre- | 0 |
| 5% is pre- | 10.5 |
| 10% is pre- | 4 |
| 30% is pre- | 3.3 |
It can be seen that along with the rising of Isocyanate prepolymers body burden, the reduction trend of foam hard first increases and subtracts afterwards.Illustrate that the content of performed polymer can reduce the hardness of foam in the range of 5%-30% and improve low temperature bursting property.Actually, by experiment it appeared that, Isocyanate prepolymers body content in second component is not limited to most preferred embodiment given above, it is all feasible between 0.1wt%-99.9wt%, preferably 1wt%-70wt%, more preferably 2wt%-60wt%, further preferred 3wt%-50wt%, further preferred 4wt%-40wt%.
Although it should be understood that it is all available in the present invention to only give the polytetrahydrofuran polyol example as straight chain polyalcohols, experimental verification but more, other straight chain polyalcohols, such as diethylene glycol, glycerol, two polyglycerols or three polyglycerols above.
Although it should be understood that only demonstrate the example of-30 DEG C above, experimental verification but more, at 40 degrees below zero-minus 20 degrees, the low-density fascia that the present invention provides is respectively provided with good cryogenic foam performance.
Above-described, only presently preferred embodiments of the present invention, it is not limited to the scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Change simple, equivalent that the most every claims according to the present patent application and description are made and modification, fall within the claims of patent of the present invention.The most detailed description of the present invention be routine techniques content.
Claims (17)
1. a low-density fascia polyurethane foam, including the first component and second component, it is characterized in that, this first component includes PEPA, including Isocyanate prepolymers body and thick isocyanates in this second component, described Isocyanate prepolymers body is formed by thick isocyanates and straight chain polyalcohols pre-polymerization.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that described PEPA is highly-branched and the PEPA of high hydroxyl value.
Low-density fascia polyurethane foam the most according to claim 2, it is characterised in that the degree of branching of described PEPA > 0.8, hydroxyl value is 500～800mgKOH/g.
Low-density fascia polyurethane foam the most according to claim 1, it is characterized in that, described PEPA is by 2,2-dimethylolpropionic acid, 2,2-dihydroxymethyl succinic acid, 2, one or more in 2-dihydromethyl propionic acid and 2,2-dihydroxymethyl butanol, 3,3-dihydroxymethyl propanol, 3, one or more PEPAs being polymerized in 3-dihydroxymethyl pentanediol.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that do not include vinyl polymer graft polyether polyol in this first component.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that described Isocyanate prepolymers body content in described second component is 5wt%-30wt%.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that described straight chain polyalcohols is the straight chain polyalcohols of high molecular.
Low-density fascia polyurethane foam the most according to claim 7, it is characterised in that the molecular weight 2000～5000 of described straight chain polyalcohols.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that described straight chain polyalcohols is one or more in polytetrahydrofuran polyol, diethylene glycol, glycerol, two polyglycerols and three polyglycerols.
Low-density fascia polyurethane foam the most according to claim 1, it is characterised in that the thick isocyanates in described Isocyanate prepolymers body is 7～8:1 with the mol ratio of straight chain polyalcohols.
The preparation method of 11. 1 kinds of low-density fascia polyurethane foams, it is characterised in that including: S1, utilizes PEPA to form the first component；S2, thick isocyanates and straight chain polyalcohols generation chemical reaction form Isocyanate prepolymers body；S3, Isocyanate prepolymers body and thick isocyanates are mixed to form second component；S4, the first component and second component are mixed to form low-density fascia polyurethane foam.
12. preparation methoies according to claim 11, it is characterized in that, described PEPA is by 2,2-dimethylolpropionic acid, 2,2-dihydroxymethyl succinic acid, 2, one or more in 2-dihydromethyl propionic acid and 2,2-dihydroxymethyl butanol, 3,3-dihydroxymethyl propanol, 3, one or more PEPAs being polymerized in 3-dihydroxymethyl pentanediol.
13. preparation methoies according to claim 11, it is characterised in that the thick isocyanates in described Isocyanate prepolymers body is 7～8:1 with the mol ratio of straight chain polyalcohols.
14. preparation methoies according to claim 11, it is characterised in that the thick isocyanates in described Isocyanate prepolymers body is 60-100 DEG C with the reaction temperature of straight chain polyalcohols.
15. 1 kinds of application according to the low-density fascia polyurethane foam according to any one of claim 1-10.
16. application according to claim 14, it is characterised in that this low-density fascia polyurethane foam has good low temperature foaming properties.
17. application according to claim 14, it is characterised in that this low-density fascia polyurethane foam has good low temperature foaming properties under 40 degrees below zero-minus 20 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006045.4A CN105820303B (en) | 2015-01-06 | 2015-01-06 | Low-density fascia polyurethane foam and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006045.4A CN105820303B (en) | 2015-01-06 | 2015-01-06 | Low-density fascia polyurethane foam and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105820303A true CN105820303A (en) | 2016-08-03 |
| CN105820303B CN105820303B (en) | 2018-08-21 |
Family
ID=56514363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510006045.4A Active CN105820303B (en) | 2015-01-06 | 2015-01-06 | Low-density fascia polyurethane foam and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105820303B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033319A (en) * | 2016-12-21 | 2017-08-11 | 重庆德盈汽车零部件有限公司 | A kind of open-celled polyurethane foam and preparation method thereof |
| CN109435126A (en) * | 2018-11-30 | 2019-03-08 | 苏州乐土家居生态科技有限公司 | 3D reticulate pattern memory sponge preparation process |
| CN109553750A (en) * | 2018-12-06 | 2019-04-02 | 上海应用技术大学 | A kind of manufacture craft of high-adhesion polyurethane automobile instrument board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600748A (en) * | 2006-12-11 | 2009-12-09 | 巴斯夫欧洲公司 | High-elasticity flexible polyurethane foam |
| CN102378771A (en) * | 2009-04-08 | 2012-03-14 | 雷克蒂塞尔公司 | Process for preparing a flexible polyurethane foam |
| CN103897130A (en) * | 2014-04-17 | 2014-07-02 | 武汉仕全兴聚氨酯科技股份有限公司 | Water dispersible hyperbranched polyisocyanate and preparation method thereof |
| CN104231235A (en) * | 2014-09-28 | 2014-12-24 | 江门市恒光新材料有限公司 | Preparation method of hyperbranched polyester with flexible long chain |
-
2015
- 2015-01-06 CN CN201510006045.4A patent/CN105820303B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600748A (en) * | 2006-12-11 | 2009-12-09 | 巴斯夫欧洲公司 | High-elasticity flexible polyurethane foam |
| CN102378771A (en) * | 2009-04-08 | 2012-03-14 | 雷克蒂塞尔公司 | Process for preparing a flexible polyurethane foam |
| CN103897130A (en) * | 2014-04-17 | 2014-07-02 | 武汉仕全兴聚氨酯科技股份有限公司 | Water dispersible hyperbranched polyisocyanate and preparation method thereof |
| CN104231235A (en) * | 2014-09-28 | 2014-12-24 | 江门市恒光新材料有限公司 | Preparation method of hyperbranched polyester with flexible long chain |
Non-Patent Citations (3)
| Title |
|---|
| 刘益军: "《聚氨酯树脂及其应用》", 30 November 2011, 化学工业出版社 * |
| 唐黎明等: "《高分子化学》", 31 May 2009, 清华大学出版社 * |
| 娄春华等: "《高分子科学导论》", 30 April 2013, 哈尔滨工业大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033319A (en) * | 2016-12-21 | 2017-08-11 | 重庆德盈汽车零部件有限公司 | A kind of open-celled polyurethane foam and preparation method thereof |
| CN109435126A (en) * | 2018-11-30 | 2019-03-08 | 苏州乐土家居生态科技有限公司 | 3D reticulate pattern memory sponge preparation process |
| CN109553750A (en) * | 2018-12-06 | 2019-04-02 | 上海应用技术大学 | A kind of manufacture craft of high-adhesion polyurethane automobile instrument board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105820303B (en) | 2018-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Suh et al. | Lightweight cellular plastics | |
| US8901189B2 (en) | Nop foam | |
| CN110835400B (en) | Polyurethane foam plastic and preparation method and application thereof | |
| US20040102596A1 (en) | Plastic material | |
| MX2007015169A (en) | Polyurethane foam for vehicle . | |
| CN108250392B (en) | Polyurethane foam composition for sound absorbing material | |
| US20140336296A1 (en) | Multi-functional bio polyurethane foam and method for manufacturing the same | |
| CN105820303A (en) | Polyurethane foam used for low-density automobile instrument panel, preparation method and application thereof | |
| CN107266656B (en) | Composition for producing polyurethane foam and molded article thereof | |
| US20230356442A1 (en) | Vibration isolating and damping member and manufacturing method thereof | |
| CN102725330B (en) | Method for making low density polyurethane foam for sound and vibration absorption | |
| CN119192519B (en) | Viscoelastic polyurethane foam and preparation method and application thereof | |
| KR20130077715A (en) | Polyurethane foam composition using polyol prepared from castor oil and sheet foam for automobile using it | |
| JP5986838B2 (en) | Sound absorbing shock absorber and method for manufacturing the same | |
| KR20120053748A (en) | Enviromental-friendly polyurethane using biopolyol | |
| CN102227295B (en) | Palm oil-based polyurethane foam products and method of production | |
| CN111253548B (en) | Sound-absorbing polyurethane hard foam composite material for vehicle | |
| CN106632952A (en) | Thermoformable polyurethane foam and preparation method thereof | |
| EP3480226B1 (en) | Composition capable of substituting use of styrene-acrylonitrile copolymer pop | |
| Mielewski et al. | Soybean oil auto applications: Developing flexible polyurethane foam formulations containing functionalized soybean oil for automotive applications | |
| US11555097B2 (en) | Use of micro and nanocellulose as performance modifiers in flexible polyurethane foams | |
| JPH11140153A (en) | Room-Temperature Foaming Polyurethane Raw Material for Damping Material, Damping Material Obtained from It, and Method of Manufacturing Damping Structural Material | |
| JPH10147708A (en) | Method for producing lightweight polyurethane elastic body | |
| Tan et al. | Low density all-MDI polyurethane foams for automotive seating | |
| KR20240054816A (en) | Polyurethane foam composition containing biomaterial, polyurethane foam molded body to which it is applied, and method for manufacturing the polyurethane foam molded body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160830 Address after: 201206 Shanghai City, Pudong New Area Chinese (Shanghai) free trade zone Jufeng Road No. 2166 Applicant after: Shanghai Yanfeng Jinqiao Automotive Trim Systems Co.,Ltd. Address before: 200235 Liuzhou Road, Shanghai, No. 399, No. Applicant before: Yanfeng Automotive Trim Systems Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |