CN102516667A - Halogen-free flame-retardant long glass fiber reinforced polypropylene material and preparation method thereof - Google Patents
Halogen-free flame-retardant long glass fiber reinforced polypropylene material and preparation method thereof Download PDFInfo
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- CN102516667A CN102516667A CN2011104254450A CN201110425445A CN102516667A CN 102516667 A CN102516667 A CN 102516667A CN 2011104254450 A CN2011104254450 A CN 2011104254450A CN 201110425445 A CN201110425445 A CN 201110425445A CN 102516667 A CN102516667 A CN 102516667A
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- 239000000463 material Substances 0.000 title claims abstract description 58
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- 229920001155 polypropylene Polymers 0.000 title claims abstract description 47
- 239000003365 glass fiber Substances 0.000 title claims abstract description 38
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title abstract description 10
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- 150000002148 esters Chemical class 0.000 claims description 6
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- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- LVHBHZANLOWSRM-UHFFFAOYSA-N itaconic acid Chemical compound OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 4
- 229920001897 terpolymer Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 claims description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- VTJUKNSKBAOEHE-UHFFFAOYSA-N calixarene Chemical compound COC(=O)COC1=C(CC=2C(=C(CC=3C(=C(C4)C=C(C=3)C(C)(C)C)OCC(=O)OC)C=C(C=2)C(C)(C)C)OCC(=O)OC)C=C(C(C)(C)C)C=C1CC1=C(OCC(=O)OC)C4=CC(C(C)(C)C)=C1 VTJUKNSKBAOEHE-UHFFFAOYSA-N 0.000 claims description 2
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 claims description 2
- 229940018557 citraconic acid Drugs 0.000 claims description 2
- 229920006228 ethylene acrylate copolymer Polymers 0.000 claims description 2
- 239000001530 fumaric acid Substances 0.000 claims description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000003017 thermal stabilizer Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 5
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 5
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- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
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- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a halogen-free flame-retardant long glass fiber reinforced polypropylene material, which comprises the following raw materials in percentage by weight: 49 to 88.8 percent of polypropylene, 0.1 to 0.5 percent of thermal stabilizer, 0.1 to 0.5 percent of lubricating agent, 5 to 20 percent of halogen-free flame retardant, 1 to 5 percent of glass fiber compatilizer and 5 to 25 percent of long glass fiber, wherein the polypropylene is high fluidity polypropylene. The invention also relates to a preparation method for the polypropylene material. The preparation method comprises the following steps of: preparing a long glass fiber master batch and a halogen-free flame-retardant master batch, mixing the two master batches uniformly, and thus obtaining the polypropylene material, wherein when the polypropylene material is used, the polypropylene material is directly used for injection molding of parts. The polypropylene material has excellent flame-retardant property and dimensional stability, high mechanical strength, low shrinkage rate and good creep resistance and thermal oxidation resistance, is suitable for injection molding of thin-wall large pieces and automotive part products with complex structures such as automotive engine bottom guard plates, front-end modules, instrument panel frameworks and the like, saves the automobile manufacturing cost, and is environment-friendly.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of halogen-free flameproof long glass fiber-reinforced polypropylene materials and preparation method thereof, be particularly suitable for making backplate at the bottom of the motor car engine, front-end module, instrument board framework etc.
Background technology
The main effect of backplate is that protection engine sump and correlated parts are avoided rubble to impact and collided with at the bottom of
motor car engine; The impact performance demands is very high; End backplate is also wanted anti-mover and vapor pipe radiating high temperature and winter environment low temperature simultaneously, therefore the material of making end backplate is also had the requirement of flame retardant resistance.Traditional all is with backplate at the bottom of the metal foil making motor car engine, because metallic substance density is very big, causes end backplate too heavy (often weighing 10 kilograms); And the complete processing of product is loaded down with trivial details; The design freedom wretched insufficiency, it is low to make integrated degree, does not meet the modular requirement of trolley part.In addition, bumps such as backplate and rubble can produce noise at the bottom of this metal mover
Summary of the invention
technical problem to be solved by this invention is the deficiency that overcomes prior art, provides that a kind of physical strength is high, dimensional stability is good, flame retardant resistance and the good halogen-free flameproof long glass fiber-reinforced polypropylene materials of thermal ageing property.
the present invention also will provide a kind of preparation method of above-mentioned halogen-free flameproof long glass fiber-reinforced polypropylene materials.
the 3rd purpose of the present invention is that above-mentioned halogen-free flameproof long glass fiber-reinforced polypropylene materials is applied to make backplate at the bottom of the motor car engine, front-end module, instrument board framework etc.
For solving above technical problem, the present invention takes following technical scheme:
A kind of halogen-free flameproof long glass fiber-reinforced polypropylene materials, by weight percentage, its composition of raw materials comprises:
Vestolen PP 7052 49 ~ 88.8%
Thermo-stabilizer 0.1 ~ 0.5%
Lubricant 0.1 ~ 0.5%
Halogen-free flame retardants 5 ~ 20%
Glass compatilizer 1 ~ 5%
Long glass fibres 5 ~ 25%
wherein, said Vestolen PP 7052 is the super-high fluidity Vestolen PP 7052 of melt flow rate(MFR) between 50 ~ 1000g/10min.
preferably, said thermo-stabilizer is one or more the combination in phenols thermo-stabilizer, amine thermo-stabilizer, phosphorous acid ester type thermal stabilizing agent and the calixarene kind thermo-stabilizer.
preferably, said lubricant is one or more the combination in metallic soap series lubricant agent, Triple Pressed Stearic Acid complex ester series lubricant agent and the amides lubricant.
preferably, said halogen-free flame retardants is a phosphorus-nitrogen expanding fire retardant, specifically can select the classical expansion type flame retardant that is formed by ammonium polyphosphate (APP), tetramethylolmethane (PER) and trimeric cyanamide matched combined for use.
preferably, described glass compatilizer is the graftomer that is grafted with polar monomer.Particularly; Polymer segment in the said graftomer that is grafted with polar monomer is selected from Vilaterm, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, styrene-butadiene copolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer or ethylene-acrylate-glycidyl methacrylate copolymer; Polar monomer in the said graftomer that is grafted with polar monomer is selected from maleic anhydride compounds or vinylformic acid and ester derivative thereof; Further; Said maleic anhydride compounds can be maleic anhydride, fumaric acid, methylene-succinic acid, citraconic acid, citraconic anhydride or vinyl Succinic anhydried etc., and said vinylformic acid and ester derivative thereof can be vinylformic acid, methylacrylic acid, methyl acrylate, ethyl propenoate, TEB 3K or GMA etc.Said glass compatilizer can be the combination of above-mentioned arbitrarily polymer segment and polar monomer, and the combination that can also be multiple different graftomer of said glass compatilizer.
preferably, said long glass fibres is the continuous high-strength and long spun glass of alkali-free.
The preparation method of above-mentioned halogen-free flameproof long glass fiber-reinforced polypropylene materials comprises the steps:
(1), the Vestolen PP 7052 of 1% ~ 50% formula ratio and the glass compatilizer of formula ratio are plastified through forcing machine earlier; Send into temperature then and be arranged on the high-temperature fusant groove between 280 ℃～380 ℃; With the long glass fibres of formula ratio add in the said high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn from the high-temperature fusant groove and go out, again through the dicing machine pelletizing, acquisition length is that the mass content of 10 ~ 13mm, long glass fibres is 50% long glass fibres master batch;
(2), will remain the thermo-stabilizer of Vestolen PP 7052, the formula ratio of formula ratio, the lubricant of formula ratio adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carries out melt blending; The halogen-free flame retardants that makes formula ratio is from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtaining length is the halogen-free flameproof master batch of 10 ~ 13mm again; The length-to-diameter ratio of said screw extrusion press is 35 ~ 56:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
When
halogen-free flameproof long glass fiber-reinforced polypropylene materials of the present invention uses, directly process goods and get final product through injection moulding.
halogen-free flameproof long glass fiber-reinforced polypropylene materials of the present invention can be applicable to automobile manufacturing field, backplate, front-end module, instrument board framework etc. at the bottom of the especially suitable making motor car engine.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
halogen-free flameproof long glass fiber-reinforced polypropylene materials of the present invention has super-high fluidity, excellent flame and dimensional stability, and physical strength is high, shrinking percentage is low, and anti-creep and hot-air aging resistance are good.Concrete performance is following: spiral linear flow length>=800mm, flame retardant properties can reach C4 flame retardant rating (the flame-retardant standard D45 of Dongfeng Automobile 1333), tensile strength>=90MPa, modulus in flexure>=6000MPa, notched Izod impact strength>=30kJ/m
2
, heat-drawn wire>=150 ℃, and thermo-oxidative ageing (150 ℃, 1000hr) back draft strength retention>=85%.
polypropylene material of the present invention is through preparing long glass fibres master batch and halogen-free flameproof master batch respectively, both are mixed getting again, and direct Injection moulded part gets final product during use, and the preparation method is simple, and processing condition are easy to control.
The acrylic resin of
polypropylene material employing of the present invention ultra high melt flow rate carries out fire-retardant as the halogen-free flame retardants of matrix resin and environmental protection; Be fit to big of injection moulding thin-walled and baroque automobile component product; Can the alternative metals material, GMT material and SMC material etc. make backplate at the bottom of the motor car engine, front-end module, instrument board framework etc., have not only practiced thrift automobile making cost but also environmental protection.
Embodiment
are done further detailed explanation below in conjunction with concrete embodiment to the present invention, but are not limited to these embodiment.
Embodiment 1
(1), Vestolen PP 7052 and 1 kilogram of glass compatilizer of being 50g/10min with 4 kilograms of melt flow rate(MFR)s plastify through single screw extrusion machine; The through port mould is transported to a temperature and is arranged on the high-temperature fusant groove between 280 ℃～380 ℃; Then with 5 kilograms alkali-free continuous long glass fiber add in this high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn soak into from the high-temperature fusant groove and go out; Through the dicing machine pelletizing, acquisition length is that the mass content of 12mm, long glass fibres is 50% long glass fibres master batch again;
(2), (be N with 84.8 kilograms the Vestolen PP 7052 identical, 0.1 kilogram of thermo-stabilizer Irganox 1010 (CIBA company), 0.1 kilogram lubricant EBS with step (1); The N-ethylene bis stearamide) adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carry out melt blending; Make halogen-free flame retardants FP-2200 (a kind of phosphorus-nitrogen expanding fire retardant that is applicable to polyolefin plasticss such as thermoplasticity PP, PE of 5 kilograms; Originate from Japan) from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtain the strip halogen-free flameproof master batch that length is similarly 12mm again; The length-to-diameter ratio of said screw extrusion press is 40:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
Present embodiment gained polypropylene material can directly be injection molded into product, and material property is tested, and the result is following:
Embodiment 2
(1), Vestolen PP 7052 and 2 kilograms of glass compatilizers of being 100g/10min with 8 kilograms of melt flow rate(MFR)s plastify through single screw extrusion machine; The through port mould is transported to a temperature and is arranged on the high-temperature fusant groove between 280 ℃～380 ℃; Then with 10 kilograms alkali-free continuous long glass fiber add in this high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn soak into from the high-temperature fusant groove and go out; Through the dicing machine pelletizing, acquisition length is that the mass content of 12mm, long glass fibres is 50% long glass fibres master batch again;
(2), (be N with 69.6 kilograms the Vestolen PP 7052 identical, 0.2 kilogram of thermo-stabilizer Irganox 1010 (CIBA company), 0.2 kilogram lubricant EBS with step (1); The N-ethylene bis stearamide) adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carry out melt blending; Make halogen-free flame retardants FP-2200 (a kind of phosphorus-nitrogen expanding fire retardant that is applicable to polyolefin plasticss such as thermoplasticity PP, PE of 10 kilograms; Originate from Japan) from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtain the strip halogen-free flameproof master batch that length is similarly 12mm again; The length-to-diameter ratio of said screw extrusion press is 40:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
Present embodiment gained polypropylene material can directly be injection molded into product, and material property is tested, and the result is following:
Embodiment 3
(1), Vestolen PP 7052 and 3 kilograms of glass compatilizers of being 180g/10min with 12 kilograms of melt flow rate(MFR)s plastify through single screw extrusion machine; The through port mould is transported to a temperature and is arranged on the high-temperature fusant groove between 280 ℃～380 ℃; Then with 15 kilograms alkali-free continuous long glass fiber add in this high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn soak into from the high-temperature fusant groove and go out; Through the dicing machine pelletizing, acquisition length is that the mass content of 12mm, long glass fibres is 50% long glass fibres master batch again;
(2), (be N with 54.4 kilograms the Vestolen PP 7052 identical, 0.3 kilogram of thermo-stabilizer Irganox 1010 (CIBA company), 0.3 kilogram lubricant EBS with step (1); The N-ethylene bis stearamide) adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carry out melt blending; Make halogen-free flame retardants FP-2200 (a kind of phosphorus-nitrogen expanding fire retardant that is applicable to polyolefin plasticss such as thermoplasticity PP, PE of 15 kilograms; Originate from Japan) from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtain the strip halogen-free flameproof master batch that length is similarly 12mm again; The length-to-diameter ratio of said screw extrusion press is 40:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
Present embodiment gained polypropylene material can directly be injection molded into product, and material property is tested, and the result is following:
Embodiment 4
(1), Vestolen PP 7052 and 4 kilograms of glass compatilizers of being 300g/10min with 16 kilograms of melt flow rate(MFR)s plastify through single screw extrusion machine; The through port mould is transported to a temperature and is arranged on the high-temperature fusant groove between 280 ℃～380 ℃; Then with 20 kilograms alkali-free continuous long glass fiber add in this high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn soak into from the high-temperature fusant groove and go out; Through the dicing machine pelletizing, acquisition length is that the mass content of 12mm, long glass fibres is 50% long glass fibres master batch again;
(2), (be N with 39.2 kilograms the Vestolen PP 7052 identical, 0.4 kilogram of thermo-stabilizer Irganox 1010 (CIBA company), 0.4 kilogram lubricant EBS with step (1); The N-ethylene bis stearamide) adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carry out melt blending; Make halogen-free flame retardants FP-2200 (a kind of phosphorus-nitrogen expanding fire retardant that is applicable to polyolefin plasticss such as thermoplasticity PP, PE of 20 kilograms; Originate from Japan) from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtain the strip halogen-free flameproof master batch that length is similarly 12mm again; The length-to-diameter ratio of said screw extrusion press is 40:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
Present embodiment gained polypropylene material can directly be injection molded into product, and material property is tested, and the result is following:
Embodiment 5
(1), Vestolen PP 7052 and 5 kilograms of glass compatilizers of being 1000g/10min with 20 kilograms of melt flow rate(MFR)s plastify through single screw extrusion machine; The through port mould is transported to a temperature and is arranged on the high-temperature fusant groove between 280 ℃～380 ℃; Then with 25 kilograms alkali-free continuous long glass fiber add in this high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn soak into from the high-temperature fusant groove and go out; Through the dicing machine pelletizing, acquisition length is that the mass content of 12mm, long glass fibres is 50% long glass fibres master batch again;
(2), (be N with 29.0 kilograms the Vestolen PP 7052 identical, 0.5 kilogram of thermo-stabilizer Irganox 1010 (CIBA company), 0.5 kilogram lubricant EBS with step (1); The N-ethylene bis stearamide) adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carry out melt blending; Make halogen-free flame retardants FP-2200 (a kind of phosphorus-nitrogen expanding fire retardant that is applicable to polyolefin plasticss such as thermoplasticity PP, PE of 20 kilograms; Originate from Japan) from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtain the strip halogen-free flameproof master batch that length is similarly 12mm again; The length-to-diameter ratio of said screw extrusion press is 40:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
Present embodiment gained polypropylene material can directly be injection molded into product, and material property is tested, and the result is following:
More than the present invention has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (10)
1. halogen-free flameproof long glass fiber-reinforced polypropylene materials, it is characterized in that: by weight percentage, the composition of raw materials of said polypropylene material comprises:
Vestolen PP 7052 49 ~ 88.8%
Thermo-stabilizer 0.1 ~ 0.5%
Lubricant 0.1 ~ 0.5%
Halogen-free flame retardants 5 ~ 20%
Glass compatilizer 1 ~ 5%
Long glass fibres 5 ~ 25%
Wherein, said Vestolen PP 7052 is the super-high fluidity Vestolen PP 7052 of melt flow rate(MFR) between 50 ~ 1000g/10min.
2. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 1 is characterized in that: said thermo-stabilizer is one or more the combination in phenols thermo-stabilizer, amine thermo-stabilizer, phosphorous acid ester type thermal stabilizing agent and the calixarene kind thermo-stabilizer.
3. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 1 is characterized in that: said lubricant is one or more the combination in metallic soap series lubricant agent, Triple Pressed Stearic Acid complex ester series lubricant agent and the amides lubricant.
4. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 1 is characterized in that: said halogen-free flame retardants is a phosphorus-nitrogen expanding fire retardant.
5. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 1 is characterized in that: described glass compatilizer is the graftomer that is grafted with polar monomer.
6. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 5; It is characterized in that: the polymer segment in the said graftomer that is grafted with polar monomer is Vilaterm, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, styrene-butadiene copolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer or ethylene-acrylate-glycidyl methacrylate copolymer, and the polar monomer in the said graftomer that is grafted with polar monomer is maleic anhydride compounds or vinylformic acid and ester derivative thereof.
7. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 6; It is characterized in that: said maleic anhydride compounds is selected from maleic anhydride, fumaric acid, methylene-succinic acid or citraconic acid, citraconic anhydride or vinyl Succinic anhydried, and said vinylformic acid and ester derivative thereof are selected from vinylformic acid, methylacrylic acid, methyl acrylate, ethyl propenoate, TEB 3K or GMA.
8. halogen-free flameproof long glass fiber-reinforced polypropylene materials according to claim 1 is characterized in that: said long glass fibres is the continuous high-strength and long spun glass of alkali-free.
9. the preparation method of the described halogen-free flameproof long glass fiber-reinforced polypropylene materials of claim 1 is characterized in that: comprise the steps:
(1), the Vestolen PP 7052 of 1% ~ 50% formula ratio and the glass compatilizer of formula ratio are plastified through forcing machine earlier; Send into temperature then and be arranged on the high-temperature fusant groove between 280 ℃～380 ℃; With the long glass fibres of formula ratio add in the said high-temperature fusant groove with the above-mentioned raw materials melt blending after; The gained material is drawn from the high-temperature fusant groove and go out, again through the dicing machine pelletizing, acquisition length is that the mass content of 10 ~ 13mm, long glass fibres is 50% long glass fibres master batch;
(2), will remain the thermo-stabilizer of Vestolen PP 7052, the formula ratio of formula ratio, the lubricant of formula ratio adds screw extrusion press from the main spout that is arranged in screw extrusion press one end, carries out melt blending; The halogen-free flame retardants that makes formula ratio is from the side spout adding screw extrusion press of said main spout 1/3 ~ 2/3 screw extrusion press length of distance; Carrying out melt blending with other components extrudes; Through the dicing machine pelletizing, obtaining length is the halogen-free flameproof master batch of 10 ~ 13mm again; The length-to-diameter ratio of said screw extrusion press is 35 ~ 56:1;
(3), the halogen-free flameproof master batch of the long glass fibres master batch of step (1) gained and step (2) gained mixed after, promptly get described halogen-free flameproof long glass fiber-reinforced polypropylene materials.
10. the described halogen-free flameproof long glass fiber-reinforced polypropylene materials of claim 1 is applied to automobile manufacturing field.
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Application publication date: 20120627 |