CN106273129B - A kind of wood moulding supporting rod preparation process - Google Patents

A kind of wood moulding supporting rod preparation process Download PDF

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Publication number
CN106273129B
CN106273129B CN201610715808.7A CN201610715808A CN106273129B CN 106273129 B CN106273129 B CN 106273129B CN 201610715808 A CN201610715808 A CN 201610715808A CN 106273129 B CN106273129 B CN 106273129B
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parts
raw material
shaping dies
supporting rod
preparation process
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CN106273129A (en
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李汪洋
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ANHUI HONGDA PLASTIC TECHNOLOGY Co Ltd
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ANHUI HONGDA PLASTIC TECHNOLOGY Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02—Deburring or deflashing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/36—Removing moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/44—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/44—Furniture or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

A kind of wood moulding supporting rod preparation process, contact-segment raw material including weighing composition wood moulding supporting rod respectively, supporting section raw material, breeze way raw material is simultaneously respectively uniformly mixed, each raw material is melted under corresponding temperature, it is shaped in raw material injection molding mold after thawing, it is finally demoulded and is polished, supporting rod quality produced by the present invention is close, intensity is high, good toughness, compared to common preparation process, product yield is obviously improved, have both wood materials and plastic material advantage, it disclosure satisfy that moisture-proof requirement, it is big that friction is contacted with ground, it is not likely to produce sliding, the preparation process flow is simple simultaneously, it is at low cost, it is good in economic efficiency.

Description

A kind of wood moulding supporting rod preparation process
Technical field
The present invention relates to wood moulding preparing technical fields, and in particular to a kind of wood moulding supporting rod preparation process.
Background technology
Material is divided into metal material, inorganic non-metallic material and high-molecular organic material three by difference according to chemical composition Major class and their composite material.As material is towards the development in fining direction, the different parts of identical product may Multiple material is used to meet different performance requirements, and is no longer traditional homogenous material, tables and chairs as daily necessities, Essentially wood materials, plastic material or the metal material sold in the market, supporting rod (i.e. table leg or chair as tables and chairs Leg) not only there is higher bearing capacity to also need to meet anti-skidding, moisture-proof function simultaneously, wood materials disclosure satisfy that anti-skidding want It asks, but makes moist and be easy to become rotten, plastic material disclosure satisfy that moisture-proof requirement, but is contacted with ground and be susceptible to skidding, metal Material is then easy corrosion.
Wood-plastic material is increasingly subject to the extensive concern of people as a kind of new material, and supporting rod is selected Wood-plastic material not The advantages of only having both wood materials and plastic material is also less prone to corrosion simultaneously, has higher bearing capacity, but existing preparation Technique is usually present the shortcomings of product quality obtained is loose, and yield rate is low, and processing procedure is unstable.
Invention content
For the present invention to solve the above problems, providing a kind of processing procedure stabilization, prepared by a kind of high wood moulding supporting rod of product yield Technique.
The technical problems to be solved by the invention are realized using technical solution below：
A kind of wood moulding supporting rod preparation process, includes the following steps：
(1) the contact-segment raw material for forming wood moulding supporting rod, supporting section raw material, breeze way raw material are weighed respectively and are respectively mixed Uniformly；
(2) above-mentioned three kinds of raw materials are melted at 120~130 DEG C, 150~180 DEG C, 200~210 DEG C respectively, is melted It is constantly stirred during changing；
(3) shaping dies and power supply are connected, control shaping dies temperature is poured at 125 DEG C into shaping dies cylindrical hole Molten state breeze way raw material is noted, buffering segment length is controlled in 10cm by the duration of pouring, cuts off the power, shaping dies is made slowly to drop Temperature pours into a mould molten state supporting section raw material into shaping dies hole, supporting section is controlled by the duration of pouring when being down to 50~60 DEG C Length is in 35cm, when temperature is down to 50~60 DEG C, then pours into a mould molten state contact-segment raw material into shaping dies hole, passes through cast Time control contacts segment length in 10cm；
(4) when mold to be formed is down to room temperature, shaping dies is made to be brought rapidly up to 110 shaping dies and power supply connection DEG C, then cooled to room temperature of cutting off the power；Make supporting rod obtained that there is higher intensity and toughness by the step, together When convenient for next step stripping operation.
(5) supporting rod obtained is demoulded from shaping dies, is first sprayed into shaping dies cylindrical hole before demoulding Releasing agent, then shaping dies is placed on shake table 3~5min of vibration, when demoulding, take off upwards from shaping dies cylindrical hole bottom end Mould；
(6) gained supporting rod surface after demoulding is polished, removes flash removed.
Breeze way raw material is made of the raw material of following parts by weight in the step (1)：
20-30 parts of polyethylene, 1-1.8 parts of polyethylene wax, 0.5-1.2 parts of polyurethane, 1.5-2.5 parts of polyamide, natural rubber 1.2-1.8 parts of glue, 0.5-1.2 parts of polystyrene, 1.3-1.5 parts of natural plant gum, 0.2-0.8 parts of chitin, 0.5-0.8 parts of starch, 0.2-0.6 parts of gelatin, 0.4-0.6 parts of jelly wax.
Contact-segment raw material is made of the raw material of following parts by weight in the step (1)：
18-25 parts of polytetrafluoroethylene (PTFE), 8-10 parts of polyethylene, 2-3 parts of amber, 1.5-2.5 parts of shellac, 1.2-1.8 parts of beeswax, 0.5-1.0 parts of bamboo powder, 1.4-2.0 parts of wood rosin, 2-2.5 parts of cocoanut fiber, 0.8-1.5 parts of kapok shell, elm bark 0.5-1.2 Part, 2-3 parts of asbestos fibre, 1.3-1.8 parts of maize straw, 0.6-1.4 parts of pectic substance；
Supporting section raw material is made of the raw material of following parts by weight in the step (1)：
15-25 parts of polypropylene, 20-25 parts of polyethylene terephthalate, 15-20 parts of acetate fiber plastics, polycyclic oxygen 10-20 parts of ethane, 12-18 parts of polyarylate, 6-10 parts of bran powder, 5-8 parts of silica gel, 4-6 parts of stalk, 7-9 parts of crystal soil, bagasse 5-8 parts, 3-5 parts of peanut shell.
Shaping dies lateral wall is socketed with cylindrical shell, the cylindrical shell inner wall and forming in the step (3) Gap winds electromagnetic coil between mold lateral wall, and the electromagnetic coil is connect with controller, and the controller is connect with power supply, Shaping dies is heated by the electromagnetic coil, control shaping dies temperature ensures casting quality.
Beneficial effects of the present invention are：Supporting rod quality produced by the present invention is close, and intensity is high, good toughness, compared to general Logical preparation process, product yield are obviously improved, have both wood materials and plastic material advantage, disclosure satisfy that moisture-proof requirement, with Ground contact friction is big, is not likely to produce sliding, while the preparation process flow is simple, at low cost, good in economic efficiency.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below Embodiment is closed, the present invention is further explained.
A kind of wood moulding supporting rod preparation process, includes the following steps：
(1) the contact-segment raw material for forming wood moulding supporting rod, supporting section raw material, breeze way raw material are weighed respectively and are respectively mixed Uniformly；
(2) above-mentioned three kinds of raw materials are melted at 120~130 DEG C, 150~180 DEG C, 200~210 DEG C respectively, is melted It is constantly stirred during changing；
(3) shaping dies and power supply are connected, control shaping dies temperature is poured at 125 DEG C into shaping dies cylindrical hole Molten state breeze way raw material is noted, buffering segment length is controlled in 10cm by the duration of pouring, cuts off the power, shaping dies is made slowly to drop Temperature pours into a mould molten state supporting section raw material into shaping dies hole, supporting section is controlled by the duration of pouring when being down to 50~60 DEG C Length is in 35cm, when temperature is down to 50~60 DEG C, then pours into a mould molten state contact-segment raw material into shaping dies hole, passes through cast Time control contacts segment length in 10cm；
(4) when mold to be formed is down to room temperature, shaping dies is made to be brought rapidly up to 110 shaping dies and power supply connection DEG C, then cooled to room temperature of cutting off the power；Make supporting rod obtained that there is higher intensity and toughness by the step, together When convenient for next step stripping operation.
(5) supporting rod obtained is demoulded from shaping dies, is first sprayed into shaping dies cylindrical hole before demoulding Releasing agent, then shaping dies is placed on shake table 3~5min of vibration, when demoulding, take off upwards from shaping dies cylindrical hole bottom end Mould；
(6) gained supporting rod surface after demoulding is polished, removes flash removed.
Breeze way raw material is made of the raw material of following parts by weight in the step (1)：
20-30 parts of polyethylene, 1-1.8 parts of polyethylene wax, 0.5-1.2 parts of polyurethane, 1.5-2.5 parts of polyamide, natural rubber 1.2-1.8 parts of glue, 0.5-1.2 parts of polystyrene, 1.3-1.5 parts of natural plant gum, 0.2-0.8 parts of chitin, 0.5-0.8 parts of starch, 0.2-0.6 parts of gelatin, 0.4-0.6 parts of jelly wax.
Contact-segment raw material is made of the raw material of following parts by weight in the step (1)：
18-25 parts of polytetrafluoroethylene (PTFE), 8-10 parts of polyethylene, 2-3 parts of amber, 1.5-2.5 parts of shellac, 1.2-1.8 parts of beeswax, 0.5-1.0 parts of bamboo powder, 1.4-2.0 parts of wood rosin, 2-2.5 parts of cocoanut fiber, 0.8-1.5 parts of kapok shell, elm bark 0.5-1.2 Part, 2-3 parts of asbestos fibre, 1.3-1.8 parts of maize straw, 0.6-1.4 parts of pectic substance；
Supporting section raw material is made of the raw material of following parts by weight in the step (1)：
15-25 parts of polypropylene, 20-25 parts of polyethylene terephthalate, 15-20 parts of acetate fiber plastics, polycyclic oxygen 10-20 parts of ethane, 12-18 parts of polyarylate, 6-10 parts of bran powder, 5-8 parts of silica gel, 4-6 parts of stalk, 7-9 parts of crystal soil, bagasse 5-8 parts, 3-5 parts of peanut shell.
Shaping dies lateral wall is socketed with cylindrical shell, the cylindrical shell inner wall and forming in the step (3) Gap winds electromagnetic coil between mold lateral wall, and the electromagnetic coil is connect with controller, and the controller is connect with power supply, Shaping dies is heated by the electromagnetic coil, control shaping dies temperature ensures casting quality.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also has various Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute Attached claims and its equivalent thereof.

Claims (5)

1. a kind of wood moulding supporting rod preparation process, includes the following steps：
(1) the contact-segment raw material for forming wood moulding supporting rod, supporting section raw material, breeze way raw material are weighed respectively and are respectively mixed equal It is even；
(2) above-mentioned three kinds of raw materials are melted at 120~130 DEG C, 150~180 DEG C, 200~210 DEG C respectively, was melted It is constantly stirred in journey；
(3) shaping dies and power supply are connected, control shaping dies temperature is poured into a mould molten at 125 DEG C into shaping dies cylindrical hole Melt state breeze way raw material, buffering segment length controlled in 10cm by the duration of pouring, cuts off the power, shaping dies is made slowly to cool down, When being down to 50~60 DEG C, molten state supporting section raw material is poured into a mould into shaping dies hole, and support segment length is controlled by the duration of pouring Degree is in 35cm, when temperature is down to 50~60 DEG C, then molten state contact-segment raw material is poured into a mould into shaping dies hole, when passing through cast Between control contact segment length in 10cm；
(4) when mold to be formed is down to room temperature, shaping dies is made to be brought rapidly up to 110 DEG C shaping dies and power supply connection, then It cuts off the power cooled to room temperature；
(5) supporting rod obtained is demoulded from shaping dies, first sprays demoulding before demoulding into shaping dies cylindrical hole Agent, then shaping dies is placed on shake table 3~5min of vibration, when demoulding, demould upwards from shaping dies cylindrical hole bottom end；
(6) gained supporting rod surface after demoulding is polished, removes flash removed.
2. a kind of wood moulding supporting rod preparation process as described in claim 1, which is characterized in that breeze way in the step (1) Raw material is made of the raw material of following parts by weight：
20-30 parts of polyethylene, 1-1.8 parts of polyethylene wax, 0.5-1.2 parts of polyurethane, 1.5-2.5 parts of polyamide, natural rubber 1.2-1.8 parts, 0.5-1.2 parts of polystyrene, 1.3-1.5 parts of natural plant gum, 0.2-0.8 parts of chitin, 0.5-0.8 parts of starch is bright 0.2-0.6 parts of glue, 0.4-0.6 parts of jelly wax.
3. a kind of wood moulding supporting rod preparation process as described in claim 1, which is characterized in that contact-segment in the step (1) Raw material is made of the raw material of following parts by weight：
18-25 parts of polytetrafluoroethylene (PTFE), 8-10 parts of polyethylene, 2-3 parts of amber, 1.5-2.5 parts of shellac, 1.2-1.8 parts of beeswax, bamboo powder 0.5-1.0 parts, 1.4-2.0 parts of wood rosin, 2-2.5 parts of cocoanut fiber, 0.8-1.5 parts of kapok shell, 0.5-1.2 parts of elm bark, stone 2-3 parts of cotton fiber, 1.3-1.8 parts of maize straw, 0.6-1.4 parts of pectic substance.
4. a kind of wood moulding supporting rod preparation process as described in claim 1, which is characterized in that supporting section in the step (1) Raw material is made of the raw material of following parts by weight：
15-25 parts of polypropylene, 20-25 parts of polyethylene terephthalate, 15-20 parts of acetate fiber plastics, polyethylene oxide 10-20 parts, 12-18 parts of polyarylate, 6-10 parts of bran powder, 5-8 parts of silica gel, 4-6 parts of stalk, 7-9 parts of crystal soil, bagasse 5-8 Part, 3-5 parts of peanut shell.
5. a kind of wood moulding supporting rod preparation process as described in claim 1, which is characterized in that finishing die in the step (3) Tool lateral wall is socketed with cylindrical shell, and gap winds electromagnetic wire between the cylindrical shell inner wall and shaping dies lateral wall Circle, the electromagnetic coil are connect with controller, and the controller is connect with power supply.
CN201610715808.7A 2016-08-24 2016-08-24 A kind of wood moulding supporting rod preparation process Active CN106273129B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747639A (en) * 2008-12-12 2010-06-23 比亚迪股份有限公司 Wood plastic composite composition, wood plastic composite and preparation method thereof
CN205338246U (en) * 2015-11-25 2016-06-29 无锡啄木鸟环保建材有限公司 Dining table is moulded to self assembly wood
CN105860231A (en) * 2016-06-23 2016-08-17 刘莹莹 Hard anti-crack wood plastic material and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6369614A (en) * 1986-09-10 1988-03-29 Mazda Motor Corp Multi-layer reactive injection molding
JPH05329849A (en) * 1992-05-27 1993-12-14 Inoac Corp Method for sealing mold for foam molding
JP3868142B2 (en) * 1999-04-01 2007-01-17 ヤマハリビングテック株式会社 Molding method of multicolor molded body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747639A (en) * 2008-12-12 2010-06-23 比亚迪股份有限公司 Wood plastic composite composition, wood plastic composite and preparation method thereof
CN205338246U (en) * 2015-11-25 2016-06-29 无锡啄木鸟环保建材有限公司 Dining table is moulded to self assembly wood
CN105860231A (en) * 2016-06-23 2016-08-17 刘莹莹 Hard anti-crack wood plastic material and preparation method thereof

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