CN107696201B - A kind of wood composite material and preparation method thereof - Google Patents

A kind of wood composite material and preparation method thereof Download PDF

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Publication number
CN107696201B
CN107696201B CN201710878721.6A CN201710878721A CN107696201B CN 107696201 B CN107696201 B CN 107696201B CN 201710878721 A CN201710878721 A CN 201710878721A CN 107696201 B CN107696201 B CN 107696201B
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China
Prior art keywords
veneer
temperature
wood
composite material
solution
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CN201710878721.6A
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CN107696201A (en
Inventor
朱晓冬
刘玉
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Northeast Forestry University
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Northeast Forestry University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0207—Pretreatment of wood before impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/005—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process employing compositions comprising microparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/025—Controlling the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/18—Compounds of alkaline earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/20—Compounds of alkali metals or ammonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/343—Heterocyclic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/36—Aliphatic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/70—Hydrophobation treatment

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The present invention discloses a kind of composite wooden material and preparation method thereof, the preparation method carries out hot-water extraction processing to Wooden veneer first, 30 DEG C -70 DEG C of extraction temperature, extraction times are 25-35min, it is placed in 0.2mol/l-0.4mol/l calcium chloride solution after processing and carries out magnetic agitation, added impregnated under 0.25g/L-0.5g/L coupling agent normal temperature and pressure later；Wooden veneer is placed in sodium carbonate liquor under condition of normal pressure later and is impregnated；Wooden veneer is placed in 20%-40% polyglycol solution again and is impregnated in 15%-25% epoxy resin solution under condition of normal pressure；It is dried after last boiling desalting processing.The composite wooden material prepared in the method, rate of body weight gain dramatically increase, and wear-resisting property is also remarkably reinforced.

Description

A kind of composite wooden material and preparation method thereof
Technical field
The present invention relates to composite wooden material technical fields, more particularly to a kind of composite wooden material and its preparation side Method.
Background technique
Timber is one of most typical biological material of nature, is widely used in the neck such as building, finishing and Furniture manufacture Domain.The current non-renewable resources in China are increasingly depleted, and high-quality timber resources is seriously deficient, and the log scale of most types is due to this Body structure feature, water resistance and wear no resistance, intensity and hardness it is lower, application field is limited.Those skilled in the art pass through The study found that the related mechanical property of log scale can effectively be promoted by being modified processing to log scale, wherein changing by calcium carbonate Property processing composite wood board, intensity, density and hardness and wear-resisting property can be promoted.Log scale is carried out Effective calcium carbonate modified processing can effectively widen the application field of log scale.
A kind of CaCO in the prior art3The embodiment of modified log scale are as follows: it is 1% that log scale test specimen, which is put into concentration, NaOH solution in vacuumize dipping after dried for standby；CaCl is carried out to test specimen using vacuum decompression system2And MgCl2Solution leaching Stain, CaCl2Solution concentration is 3.5mol/L, MgCl2The concentration of solution is 30%, and temperature is 20 DEG C, keeps continuing to soak after 3h Stain then takes out test specimen and is placed in a vacuum drying oven drying；It repeats the above steps, impregnates Na under vacuum decompression later2CO3Solution, Na2CO3Solution concentration is 2.0mol/L, and temperature is 20 DEG C, keeps continuing to impregnate 48h after 3h；Water is carried out to processed test specimen Salt treatment is eluted, takes out freeze-day with constant temperature after desalting processing.The preparation method of this calcium carbonate modified log scale, all too many levels all need Will impregnation timber under vacuum conditions, it is more demanding to production equipment so that production cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of composite wooden materials and preparation method thereof, to solve preparation in the prior art The higher technical problem of method production cost.
To achieve the above object, the present invention provides following schemes:
A kind of Wood composite preparation method for material, comprising steps of
Step A carries out hot-water extraction processing to Wooden veneer；
Step B will carry out magnetic agitation in the Wooden veneer merging calcium chloride solution after processing of step A, later It is impregnated under addition coupling agent normal temperature and pressure；
Step C, will be through impregnating under condition of normal pressure in step B treated Wooden veneer merging sodium carbonate liquor；
Step D, will be through impregnating under normal temperature and pressure in step C treated Wooden veneer merging polyglycol solution；
Step E, will be through impregnating under condition of normal pressure in step D treated Wooden veneer merging epoxy resin solution；
Step F, to treated dries after the Wooden veneer carries out boiling desalting processing through step E.
Preferably, the step A comprising steps of
Wooden veneer progress hot-water extraction processing to preset thickness, 30 DEG C -70 DEG C of extraction temperature, extraction times 25- 35min。
Preferably, the step A comprising steps of
The Wooden veneer of preset thickness is put into the container equipped with distilled water, capping is placed in hot bath, heating speed Rate is 2 DEG C/min, until temperature reaches 70 DEG C, keeps the temperature 30min, dries after taking out the Wooden veneer.
Preferably, the step B comprising steps of
Step B1, compound concentration is the calcium chloride solution of 0.2mol/l-0.4mol/1, described in after processing of step A Wooden veneer is placed in the calcium chloride solution, stirs 2H with magnetic stirring apparatus at room temperature with the speed of 500r/min；
Step B2 is added the coupling agent of 0.25g/L-0.5g/L, impregnates 24H at normal temperatures and pressures later；
Step B3 takes out the Wooden veneer package and places 24H.
Preferably, coupling agent is 3- aminopropyl triethoxysilane in the step B2.
Preferably, the step C comprising steps of
By the sodium carbonate liquor for being 0.2mol/l-0.4mol/l through step B treated Wooden veneer merging concentration Middle dipping, during dipping, takes out after every dipping 24H and places, place by 30 DEG C -70 DEG C of dipping temperature, dip time 72H 24H is impregnated after 24H again, is repeated so that being up to 72H when impregnating.
Preferably, the step D comprising steps of
The polyglycol solution that concentration is 20%-40% is deployed, it will treated that the Wooden veneer is placed in institute through step C It states in polyglycol solution, impregnates 24H under normal temperature and pressure, then take out the Wooden veneer and place 24H.
Preferably, the step E comprising steps of
By through step D, treated that Wooden veneer merging concentration is dipping in the epoxy resin solution of 15%-25% It 20 DEG C -60 DEG C of temperature, impregnates under condition of normal pressure, during dipping, impregnates for the first time and take out the Wooden veneer after 8H and place 8H, then It is further taken out after dipping 8H and places 8H.
Preferably, through step E, treated that the Wooden veneer carries out boiling desalting processing includes step in the step F It is rapid:
Distilled water boiling desalting processing is used to the Wooden veneer after dipping, temperature setting is 70 DEG C, boiling duration It is 30 minutes, cold water washs later.
The present invention also provides a kind of composite wooden materials, for using the Wood composite of preparation method as described above preparation Material.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
Composite wooden material provided by the invention and preparation method thereof handles timber using hot-water extraction first, then exists Calcium carbonate impregnation is carried out under condition of normal pressure, then carries out polyethylene glycol and epoxy resin normal pressure impregnation, is being obviously improved While the rate of body weight gain and wear-resisting property of timber, whole process is not necessarily to vacuum environment, not high to equipment requirement, reduces production cost, Process flow is also simply easily applied；
In addition, the binding force of preparation method calcium carbonate in the prior art and timber is poor, calcium carbonate is relatively easy to run off, through testing Detection, the modified composite wooden material rate of body weight gain prepared using preparation method in the prior art is low and wear-resisting property is poor, And the composite wooden material of preparation method provided by the invention production is used, the binding force of calcium carbonate and log scale is stronger, weight gain Rate and wear-resisting property are substantially improved.Wherein, Wooden veneer is impregnated in using technical solution of the present invention certain density poly- In ethylene glycol solution and epoxy resin solution, the binding force of Wooden veneer and calcium carbonate is effectively enhanced, calcium carbonate is not easy It is lost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is a kind of flow chart of one embodiment of Wood composite preparation method for material of the present invention；
Fig. 2 is plain plate (untreated Wooden veneer) 1000 times of electron microscopes；
Fig. 3 is through technical solution of the present invention treated 1000 times of electron microscopes of composite board.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
To keep upper technical solution of the invention more obvious and easy to understand, the present invention is made into one With reference to embodiment Step detailed description.
Embodiment one
It is shown in Figure 1, the embodiment of the present invention one provide preparation method comprising steps of
Step S110 carries out hot-water extraction processing to Wooden veneer；
Step S111 will be stirred through carrying out magnetic force in step S110 treated Wooden veneer merging calcium chloride solution It mixes, adds impregnated under coupling agent normal temperature and pressure later；
Step S112, will be through soaking under condition of normal pressure in step S111 treated Wooden veneer merging sodium carbonate liquor Stain；
Step S113, will be through under normal temperature and pressure in step S112 treated Wooden veneer merging polyglycol solution Dipping；
Step S114, will be through under condition of normal pressure in step S113 treated Wooden veneer merging epoxy resin solution Dipping；
Step S115, to treated dries after the Wooden veneer carries out boiling desalting processing through step S114.
The present embodiment by taking 1mm thickness larch veneer makees log scale test specimen as an example, to the technical solution of the embodiment of the present invention into Row is specifically described.
Hot-water extraction processing is carried out to the thick larch veneer of 1mm or so first, experimental temperature is 30 DEG C, extraction times 30 Minute.
Prepare calcium chloride solution, concentration be 0.2mol/l (mol/L), at room temperature, with magnetic stirring apparatus with The speed of 500R/MIN (rev/min) stirs 2H (hour), a small amount of coupling agent 3- aminopropyl triethoxysilane is added later, i.e., The dosage of KH550, coupling agent are 0.5g/L, impregnate 24H at normal temperatures and pressures, finally take out test specimen package and place 24H.
The addition of coupling agent KH550 can promote log scale veneer preferably to be combined with calcium ion and carbanion.
The larch veneer for impregnating superchlorination calcium solution is ready to, then plate is impregnated under conditions of 30 DEG C of temperature In sodium carbonate liquor, solution concentration 0.2mol/l.Dip time is 72H, during dipping, takes out and places every 24H, then 24H is impregnated, is repeated so that impregnating 72H.
Polyglycol solution is deployed, concentration is 20%, impregnates 24H at normal temperatures and pressures, then takes out the placement of veneer test specimen 24H。
Under normal pressure, reaction temperature is epoxy resin-impregnated solution under 20 DEG C of levels, and epoxy resin solution concentration is 15%, During dipping, test specimen being taken out every 8H and places 8H into drying receptacle, being so repeated twice total time is 32H.
Boiling ungrease treatment is used to the veneer test specimen after dipping, removes the sodium chloride that extra impurity and reaction generate Salts are waited, take out washing after desalting processing.Distilled water is used when boiling, 70 degree of water temperature, boils 30 minutes, later (0 DEG C -30 of cold water DEG C) washing.
Will be dry under the test specimen veneer after boiling and washing indoors constant temperature natural conditions, so that larch veneer is reached gas dry Material.
Embodiment two
In the embodiment of the present invention two, hot-water extraction processing, experimental temperature are carried out to the thick larch veneer of 1.5mm or so first It is 50 DEG C, extraction times are 30 minutes.Specifically, the thick larch veneer of 1.5mm or so is placed in the container equipped with distilled water, Capping is placed in hot bath, and heating rate is 2 DEG C/min, until keeping the temperature 30min after test temperature reaches 50 DEG C, takes out examination It is dried after sample.
Prepare calcium chloride solution, concentration 0.3mol/l, at room temperature, with magnetic stirring apparatus with 500R/MIN Speed stir 2H.A small amount of coupling agent 3- aminopropyl triethoxysilane is added later, the dosage of coupling agent is 0.25g/L, 24H is impregnated at normal temperatures and pressures, is taken out test specimen package and is placed 24H.The material selected when package, which should be, to be avoided sending out with plate surface The light and soft material of biochemical reaction or generation physical impact.
The larch veneer for impregnating superchlorination calcium solution is ready to, then plate is impregnated under the conditions of temperature 50 C In sodium carbonate liquor, solution concentration 0.3mol/l.Dip time is 72H, during dipping, takes out and places every 24H, then soak Stain 24H repeats so that impregnating 24H.
Polyglycol solution is deployed, concentration is 30%, impregnates 24H at normal temperatures and pressures, then takes out the placement of veneer test specimen 24H。
Under normal pressure, epoxy resin-impregnated solution under 40 DEG C of levels of reaction temperature is selected, epoxy resin solution concentration is 20%, during dipping, test specimen is taken out every 8H and places 8H, total time 32H into drying receptacle.
Boiling ungrease treatment is used to the veneer test specimen after dipping, removes the sodium chloride that extra impurity and reaction generate Salts are waited, take out washing after desalting processing.This step and subsequent step are as in the first embodiment, repeat no more.
Embodiment three
The embodiment of the present invention three is still illustrated so that larch veneer makees log scale test specimen as an example.The present invention is adoptable Log scale type is not limited only to larch, can also be other types, such as willow, paulownia wood, Fast growth poplar etc..
The thickness of log scale veneer can be 0.8mm-2.5mm (millimeter), and those skilled in the art can be according to the present invention Technical solution technical concept and the specific adjustment of actual needs, the present invention do not limit one by one.
Firstly, being placed on larch veneer in the vessel equipped with distilled water, capping is placed in hot bath, and heating rate is 2 DEG C/min, until test temperature reaches 70 DEG C, 30min is kept the temperature, is dried after taking out sample.
Calcium chloride solution is prepared, concentration is 0.4mol/1 horizontal.At room temperature, with magnetic stirring apparatus with 500R/ The speed of MIN stirs 2H.A small amount of coupling agent 3- aminopropyl triethoxysilane is added later, the dosage of coupling agent is 0.45g/ L impregnates 24H at normal temperatures and pressures, finally takes out test specimen package and places 24H.
The larch veneer for impregnating superchlorination calcium solution is ready to, then plate is impregnated under conditions of temperature 70 C In sodium carbonate liquor, solution concentration 0.4mol/l.Dip time is 72H, during dipping, takes out and places every 24H, then 24H is impregnated, is repeated so that impregnating 72H.
Polyglycol solution is deployed, concentration is 40%.24H is impregnated at normal temperatures and pressures, then takes out the placement of veneer test specimen 24H。
Under normal pressure, epoxy resin-impregnated solution under 60 DEG C of levels of reaction temperature is selected, epoxy resin solution concentration is 25%, during dipping, test specimen is taken out every 8H and places 8H, total time 32H into drying receptacle.
Subsequent step is as in the first embodiment, repeat no more.
Technical solution provided in an embodiment of the present invention carries out hot-water extraction processing wood using specific heating method first Then material carries out the dipping of calcium chloride solution and sodium carbonate liquor in atmospheric conditions, carry out polyethylene glycol and asphalt mixtures modified by epoxy resin later Rouge normal pressure impregnation, polyethylene glycol and the impregnation of epoxy resin normal pressure can effectively promote calcium carbonate and log scale veneer Binding force, the addition of coupling agent also plays the purpose of preliminary fixed calcium carbonate.
The calcium carbonate modified processing that log scale veneer is carried out using entire process flow disclosed by the invention, compared to existing There is technology, it is i.e. implementable in atmospheric conditions, it is not necessarily to vacuum environment, so that the cost of production equipment substantially reduces；Meanwhile referring to Shown in Fig. 2 and Fig. 3, Fig. 2 is 1000 times of electron microscopes of untreated Wooden veneer, it is evident that plain plate is (untreated from Fig. 2 Wooden veneer) there is no filler in timber conduit, Fig. 3 is through preparation method provided by the invention treated composite board 1000 times of electron microscopes.As can be seen from Figure 3 under the common filling of epoxy resin and calcium carbonate, calcium carbonate is covered tightly by resin coating It is close to be filled into conduit, the rate of body weight gain and wear-resisting property of composite wooden material can be effectively promoted, so that log scale and carbonic acid The binding force of calcium is stronger, and the rate of body weight gain and wear-resisting property for being embodied in modified composite wooden material are substantially improved.
Improve the measured data of rate of body weight gain and wear-resisting property about technical solution of the present invention:
Wherein, rate of body weight gain is to the monomer retention ratio important in inhibiting for indicating veneer dipping.Rate of body weight gain is the bigger the better.Referring to Table 1, wherein A-I is 9 groups of different types of log scale test samples.It is above-mentioned using the present invention under the conditions of identical impregnation technology Technical solution is not impregnated with the rate of body weight gain of polyethylene glycol and epoxy resin referring to the first column data, is impregnated using technical solution of the present invention Rate of body weight gain in the case of polyethylene glycol and epoxy resin is referring to the second column data.Using this it can be seen from the data shown in table 1 Inventive technique scheme impregnates polyethylene glycol and epoxy resin enables to the rate of body weight gain of modified plate to be substantially improved.
Table 1
Wear-resisting detection: specimen size breadth is carried out to the composite wooden material using preparation method provided by the invention preparation For 100mm × 100mm, thickness in monolayer 2mm, totally 5 layers, after milky white adhesive Cold-press adhesion, using carpenter's instrument in test specimen The heart drills through the circular hole that diameter is 8mm, and every kind of test specimen three, reference standard uses wood-based plate rolling wear test machine, uses 180# Sand paper.50r is ground using each test specimen, wear rate is calculated according to formula (1-1), compares abrasion resistant effect.The lower wear rate the better.
In formula: M1 --- Veneer quality before grinding；M2 --- Veneer quality after mill
The wear rate of log scale element plate is 0.91%, under the conditions of technical solution of the present invention, referring to table 2, impregnates carbonic acid Calcium is not impregnated with the wear rate optimal 1.07% of polyethylene glycol and epoxy resin, and wear rate is most after impregnating polyethylene glycol and epoxy resin Excellent is 0.05%.
As it can be seen that polyethylene glycol and epoxy resin are impregnated on the basis of impregnating calcium carbonate using technical solution of the present invention, it can Effectively promoted it is calcium carbonate modified after composite wooden material rate of body weight gain and wear-resisting property.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not It is interpreted as limitation of the present invention.

Claims (10)

1.一种木质复合材料制备方法，其特征在于，包括步骤：1. a wood composite material preparation method, is characterized in that, comprises the steps: 步骤A，对木质单板进行热水抽提处理；Step A, hot water extraction treatment is performed on the wooden veneer; 步骤B，将经步骤A处理后的所述木质单板置入氯化钙溶液中进行磁力搅拌，之后添加偶联剂常温常压下浸渍；In step B, the wooden veneer treated in step A is placed in a calcium chloride solution for magnetic stirring, and then a coupling agent is added for immersion at normal temperature and pressure; 步骤C，将经步骤B处理后的所述木质单板置入碳酸钠溶液中常压条件下浸渍；Step C, placing the wood veneer processed in Step B into a sodium carbonate solution and dipping under normal pressure conditions; 步骤D，将经步骤C处理后的所述木质单板置入浓度为20％-40％的聚乙二醇溶液中常温常压下浸渍；Step D, placing the wood veneer treated in Step C into a polyethylene glycol solution with a concentration of 20%-40% and dipping under normal temperature and pressure; 步骤E，将经步骤D处理后的所述木质单板置入环氧树脂溶液中常压条件下浸渍，环氧树脂溶液浓度为15％-25％，浸渍温度20℃-60℃；In step E, the wood veneer treated in step D is placed in an epoxy resin solution for dipping under normal pressure, the concentration of the epoxy resin solution is 15%-25%, and the dipping temperature is 20°C-60°C; 步骤F，对经步骤E处理后的所述木质单板进行水煮脱盐处理后晾干。In step F, the wood veneer treated in step E is subjected to boiling and desalination treatment and then air-dried. 2.如权利要求1所述的木质复合材料的制备方法，其特征在于，所述步骤A包括步骤：2. the preparation method of wood composite material as claimed in claim 1, is characterized in that, described step A comprises the step: 对预设厚度的木质单板进行热水抽提处理，抽提温度30℃-70℃，抽提时间为25-35min。The wood veneer of preset thickness is subjected to hot water extraction treatment, the extraction temperature is 30°C-70°C, and the extraction time is 25-35min. 3.如权利要求2所述的木质复合材料制备方法，其特征在于，所述步骤A包括步骤：3. wood composite material preparation method as claimed in claim 2, is characterized in that, described step A comprises the step: 将预设厚度的木质单板放入装有蒸馏水的容器中，加盖并置于热水浴中，升温速率为2℃/min，直至温度达到70℃，保温30min，取出所述木质单板后烘干。Put the wooden veneer of preset thickness into a container filled with distilled water, cover it and place it in a hot water bath, the heating rate is 2°C/min, until the temperature reaches 70°C, keep the temperature for 30min, and take out the wooden veneer Dry after. 4.如权利要求1所述的木质复合材料制备方法，其特征在于，所述步骤B包括步骤：4. wood composite material preparation method as claimed in claim 1, is characterized in that, described step B comprises the step: 步骤B1，配制浓度为0.2mol/l-0.4mol/l的氯化钙溶液，将经步骤A处理后的所述木质单板置入所述氯化钙溶液，在室温条件下用磁力搅拌器以500r/min的速度搅拌2H；Step B1, preparing a calcium chloride solution with a concentration of 0.2mol/l-0.4mol/l, placing the wood veneer processed in step A into the calcium chloride solution, and using a magnetic stirrer at room temperature Stir at a speed of 500r/min for 2H; 步骤B2，加入0.25g/L-0.5g/L的偶联剂，之后在常温常压下浸渍24H；Step B2, adding a coupling agent of 0.25g/L-0.5g/L, and then immersing it for 24H at normal temperature and pressure; 步骤B3，取出所述木质单板包裹放置24H。Step B3, take out the wooden veneer and wrap it for 24H. 5.如权利要求4所述的木质复合材料制备方法，其特征在于，所述步骤B2中偶联剂为3-氨丙基三乙氧基硅烷。5. The method for preparing a wood composite material according to claim 4, wherein the coupling agent in the step B2 is 3-aminopropyltriethoxysilane. 6.如权利要求1所述的木质复合材料制备方法，其特征在于，所述步骤C包括步骤：6. wood composite material preparation method as claimed in claim 1, is characterized in that, described step C comprises the step: 将经步骤B处理后的所述木质单板置入浓度为0.2mol/l-0.4mol/l的碳酸钠溶液中浸渍，浸渍温度30℃-70℃，浸渍时间为72H，浸渍期间内，每浸渍24H后取出放置，放置24H后再浸渍24H，重复进行以至浸渍时长达72H。The wood veneer treated in step B is placed in a sodium carbonate solution with a concentration of 0.2mol/l-0.4mol/l for dipping, the dipping temperature is 30°C-70°C, and the dipping time is 72H. After immersion for 24H, take out and stand, and then immerse for 24H after standing for 24H, and repeat until the immersion time is as long as 72H. 7.如权利要求1所述的木质复合材料制备方法，其特征在于，所述步骤D包括步骤：7. wood composite material preparation method as claimed in claim 1, is characterized in that, described step D comprises the step: 调配浓度为20％-40％的聚乙二醇溶液，将经步骤C处理后的所述木质单板置入所述聚乙二醇溶液中，常温常压下浸渍24H，然后取出所述木质单板放置24H。Prepare a polyethylene glycol solution with a concentration of 20%-40%, put the wood veneer treated in step C into the polyethylene glycol solution, immerse it for 24H under normal temperature and pressure, and then take out the wood veneer. The veneer is placed for 24 hours. 8.如权利要求1所述的木质复合材料制备方法，其特征在于，所述步骤E包括步骤：8. wood composite material preparation method as claimed in claim 1, is characterized in that, described step E comprises the step: 将经步骤D处理后的所述木质单板置入浓度为15％-25％的环氧树脂溶液中，浸渍温度20℃-60℃，常压条件下浸渍，浸渍期间，第一次浸渍8H后取出所述木质单板放置8H，再浸渍8H后再取出放置8H。The wood veneer treated in step D is placed in an epoxy resin solution with a concentration of 15%-25%, the immersion temperature is 20°C-60°C, and the immersion is under normal pressure conditions. During the immersion, the first immersion is 8H. Afterwards, the wooden veneer was taken out and placed for 8H, and then soaked for 8H and then taken out and placed for 8H. 9.如权利要求1所述的木质复合材料制备方法，其特征在于，所述步骤F中经步骤E处理后的所述木质单板进行水煮脱盐处理包括步骤：9. The method for preparing a wood composite material according to claim 1, wherein in the step F, the wood veneer processed in the step E is subjected to boiling and desalination treatment comprising the steps of: 对浸渍后的所述木质单板采用蒸馏水水煮脱盐处理，温度设置为70℃，水煮时长为30分钟，之后冷水洗涤。The impregnated wooden veneer was boiled and desalted with distilled water, the temperature was set to 70° C., the boiled time was 30 minutes, and then washed with cold water. 10.一种木质复合材料，其特征在于，为采用如权利要求1-9任一项所述的制备方法制备的木质复合材料。10. A wood composite material, characterized in that it is a wood composite material prepared by the preparation method according to any one of claims 1-9.
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