CN105385181A - Double-layer co-extruded wood-plastic composite plate and preparation method thereof - Google Patents
Double-layer co-extruded wood-plastic composite plate and preparation method thereof Download PDFInfo
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- CN105385181A CN105385181A CN201510936045.4A CN201510936045A CN105385181A CN 105385181 A CN105385181 A CN 105385181A CN 201510936045 A CN201510936045 A CN 201510936045A CN 105385181 A CN105385181 A CN 105385181A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a double-layer co-extruded wood-plastic composite plate and a preparation method thereof. A surface and a core layer of the double-layer co-extruded wood-plastic composite plate are prepared from different materials and the core layer is prepared from PE particles selected from urban waste plastic. In production, through a co-extrusion method, the surface completely covers and surrounds the core layer. The core layer does not contact with the external environment. Waste and old plastic impurities of the core layer do not influence appearance and thus only surface functions need to be improved. The preparation method saves a cost and can produce the excellent-performance wood-plastic composite plate with good appearance, flame resistance, weatherability, aging resistance and color stability. Through polishing and galling, a finished product is obtained and has the advantages of environmental friendliness, low cost, wide raw material sources and excellent performances.
Description
Technical field
The present invention relates to the technical field of matrix material, is a kind of double-layer coextrusion wood-plastic composite panel and preparation method thereof specifically.
Background technology
Wood plastic composite is a kind of type material grown up in recent years, and it utilizes various natural fiber and plastics (PE, PVC) and additives for plastics to produce the section bar of various outward appearance, is widely used in the industry such as indoor decoration, garden architecture.But because plastics and natural fiber are all inflammable substance, therefore wood plastic composite is also inflammable substance, cannot meet the service requirements in the fire-retardant place of some needs, significantly limit the use range of product, therefore, the flame retardant resistance improving wood plastic composite is very necessary.Become white pollution because city plastic garbage increases year by year in addition, be directly used as after reclaiming raw material production mould its outward appearance of words of woodwork and mechanical property all poor, good recycling effect cannot be received.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of double-layer coextrusion wood-plastic composite panel and preparation method thereof.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
Double-layer coextrusion wood-plastic composite panel of the present invention, comprises top layer and sandwich layer, and Surface mulch is in the outside of sandwich layer, the raw material on top layer by mass fraction is: HDPE plastic 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts, uv-absorbing agent 0.25-0.3 part, oxidation inhibitor 0.5-0.6 part, lubricant 2-3 part, Silane coupling agent KH550 3 parts, fire retardant 8-12 part, tinting material 5-8 part; The raw material of sandwich layer by mass fraction is: PE plastic pellet 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts, lubricant 2-2.5 part.
The preparation method of double-layer coextrusion wood-plastic composite panel; the raw material of the raw material on top layer and sandwich layer is mixed 20 minutes 60 DEG C of blender high speeds respectively; through 40 DEG C of low-temperature mixed respective discharge after 5 minutes; again the top layer raw material mixed and core layer raw material are poured in tablets press respectively and cause top layer particle and sandwich layer particle; top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.
The present invention can also adopt following technical measures:
Described PE plastic pellet is that the sorting of municipal wastes plastic warp obtains cleaning, granulation gained particle after PE coating materials.
Described wood powder particle diameter is 60-100 order.
Described uv-absorbing agent is UV531.
Described oxidation inhibitor comprises antioxidant 1010 and irgasfos 168; The mass ratio of above-mentioned two oxidation inhibitor is antioxidant 1010: irgasfos 168=1:1.
Described lubricant is EBS.
Described fire retardant comprises ammonium polyphosphate and antimonous oxide, and both mass ratioes are 1:1.
The advantage that the present invention has and positively effect are:
In double-layer coextrusion wood-plastic composite panel of the present invention and preparation method thereof, top layer and sandwich layer are respectively different material, the PE particle utilizing municipal wastes separating plastic to draw in sandwich layer is as raw material, by the mode of co-extrusion, top layer is covered completely the outside being enclosed in sandwich layer during production, sandwich layer not with extraneous contact, the impurity of the waste or used plastics of sandwich layer can not have an impact to outward appearance, therefore only the functional of top layer need be improved, both cost had been saved, outward appearance can be produced again, flame retardant resistance, weathering resistance, resistance to deterioration, the wood-plastic composite panel of the excellent propertys such as colour stability, by polishing, wharf's pavement quality obtains finished product, there is environmental protection, cost is low, raw material supply is extensive, the advantages such as excellent property.
Embodiment
Double-layer coextrusion wood-plastic composite panel of the present invention, comprises top layer and sandwich layer, and Surface mulch is in the outside of sandwich layer, the raw material on top layer by mass fraction is: HDPE plastic 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts is as compatilizer, uv-absorbing agent 0.25-0.3 part, oxidation inhibitor 0.5-0.6 part, lubricant 2-3 part, Silane coupling agent KH550 3 parts is as coupling agent, fire retardant 8-12 part, tinting material 5-8 part; The raw material of sandwich layer by mass fraction is: PE plastic pellet 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts, lubricant 2-2.5 part.
The preparation method of double-layer coextrusion wood-plastic composite panel; the raw material of the raw material on top layer and sandwich layer is mixed 20 minutes 60 DEG C of blender high speeds respectively; through 40 DEG C of low-temperature mixed respective discharge after 5 minutes; again the top layer raw material mixed and core layer raw material are poured in tablets press respectively and cause top layer particle and sandwich layer particle; top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.
PE plastic pellet is that the sorting of municipal wastes plastic warp obtains cleaning, granulation gained particle after PE coating materials.
Wood powder particle diameter is 60-100 order.
Uv-absorbing agent is UV531.
Oxidation inhibitor comprises antioxidant 1010 and irgasfos 168; The mass ratio of above-mentioned two oxidation inhibitor is antioxidant 1010: irgasfos 168=1:1.
Lubricant is EBS.
Fire retardant comprises ammonium polyphosphate and antimonous oxide, and both mass ratioes are 1:1.
By the following examples technical scheme of the present invention is described in detail.
Embodiment 1:
Take top layer material HDPE35 part, particle diameter is the wood powder 65 parts of 75, talcum powder 15 parts, maleic anhydride stem grafting polyolefin 5 parts, tinting material 6 parts, UV5310.3 part, antioxidant 1010 0.3 part, irgasfos 168 0.3 part, EBS2.7 part, ammonium polyphosphate 5 parts, antimonous oxide 5 parts, Silane coupling agent KH550 3 parts; Top layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the top layer thing mixed is poured in tablets press causes top layer particle.Take 35 parts, the waste and old PE particle of sandwich layer material, particle diameter is the wood powder 65 parts of 75, talcum powder 15 parts, maleic anhydride stem grafting polyolefin 5 parts, EBS2.2 part; Sandwich layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the core layer raw material mixed is poured in tablets press causes sandwich layer particle.Top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.The wood-plastic co-extrusion composite sheet flexural strength made by coextrusion process reaches 40.2MPa, and bending elastic modulus reaches 3300MPa, oxygen index 29.1%.
Embodiment 2:
Take top layer material HDPE40 part, particle diameter is the wood powder 60 parts of 100, talcum powder 10 parts, maleic anhydride stem grafting polyolefin 5 parts, tinting material 8 parts, UV5310.25 part, antioxidant 1010 0.25 part, irgasfos 168 0.25 part, EBS2 part, ammonium polyphosphate 6 parts, antimonous oxide 6 parts, Silane coupling agent KH550 3 parts; Top layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the top layer thing mixed is poured in tablets press causes top layer particle.Take 40 parts, the waste and old PE particle of sandwich layer material, particle diameter is the wood powder 60 parts of 100, talcum powder 10 parts, maleic anhydride stem grafting polyolefin 5 parts, EBS2.5 part; Sandwich layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the core layer raw material mixed is poured in tablets press causes sandwich layer particle.Top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.The wood-plastic co-extrusion composite sheet flexural strength made by coextrusion process reaches 41.6MPa, and bending elastic modulus reaches 3462MPa, oxygen index 30.7%.
Embodiment 3:
Take top layer material HDPE30 part, particle diameter is the wood powder 70 parts of 60, talcum powder 12.5 parts, maleic anhydride stem grafting polyolefin 5 parts, tinting material 5 parts, UV5310.28 part, antioxidant 1010 0.28 part, irgasfos 168 0.28 part, EBS3 part, ammonium polyphosphate 4 parts, antimonous oxide 4 parts, Silane coupling agent KH550 3 parts; Top layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the top layer thing mixed is poured in tablets press causes top layer particle.Take 30 parts, the waste and old PE particle of sandwich layer material, particle diameter is the wood powder 70 parts of 60, talcum powder 12.5 parts, maleic anhydride stem grafting polyolefin 5 parts, EBS2 part; Sandwich layer material is mixed 20 minutes 60 DEG C of blender high speeds, through 40 DEG C of low-temperature mixed discharge after 5 minutes, then the core layer raw material mixed is poured in tablets press causes sandwich layer particle.Top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.The wood-plastic co-extrusion composite sheet flexural strength made by coextrusion process reaches 40.7MPa, and bending elastic modulus reaches 3381MPa, oxygen index 29.4%.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention with preferred embodiment openly as above, but, and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (8)
1. a double-layer coextrusion wood-plastic composite panel, comprises top layer and sandwich layer, and Surface mulch is in the outside of sandwich layer, it is characterized in that: the raw material on top layer by mass fraction is: HDPE plastic 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts, uv-absorbing agent 0.25-0.3 part, oxidation inhibitor 0.5-0.6 part, lubricant 2-3 part, Silane coupling agent KH550 3 parts, fire retardant 8-12 part, tinting material 5-8 part; The raw material of sandwich layer by mass fraction is: PE plastic pellet 30-40 part, wood powder 60-70 part, talcum powder 10-15 part, maleic anhydride stem grafting polyolefin 5 parts, lubricant 2-2.5 part.
2. the preparation method of a double-layer coextrusion wood-plastic composite panel; it is characterized in that: first the raw material of the raw material on top layer and sandwich layer is mixed 20 minutes 60 DEG C of blender high speeds respectively by proportioning described in claim 1; through 40 DEG C of low-temperature mixed respective discharge after 5 minutes; again the top layer raw material mixed and core layer raw material are poured in tablets press respectively and cause top layer particle and sandwich layer particle; top layer particle and sandwich layer particle are poured respectively into top layer storage bin and the sandwich layer storage bin of co-extrusion machine, by co-extrusion machine, top layer is extruded the outside surface of coated whole sandwich layer.
3. the preparation method of double-layer coextrusion wood-plastic composite panel according to claim 2, is characterized in that: PE plastic pellet is that the sorting of municipal wastes plastic warp obtains cleaning, granulation gained particle after PE coating materials.
4. the preparation method of the double-layer coextrusion wood-plastic composite panel according to Claims 2 or 3, is characterized in that: wood powder particle diameter is 60-100 order.
5. the preparation method of double-layer coextrusion wood-plastic composite panel according to claim 4, is characterized in that: uv-absorbing agent is UV531.
6. the preparation method of double-layer coextrusion wood-plastic composite panel according to claim 5, is characterized in that: oxidation inhibitor comprises antioxidant 1010 and irgasfos 168; The mass ratio of above-mentioned two oxidation inhibitor is antioxidant 1010: irgasfos 168=1:1.
7. the preparation method of double-layer coextrusion wood-plastic composite panel according to claim 6, is characterized in that: lubricant is EBS.
8. the preparation method of double-layer coextrusion wood-plastic composite panel according to claim 7, is characterized in that: fire retardant comprises ammonium polyphosphate and antimonous oxide, and both mass ratioes are 1:1.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183274A (en) * | 2016-08-31 | 2016-12-07 | 浙江省现代纺织工业研究院 | A kind of preparation method of high density polyethylene (HDPE) aging resistance composite plate |
| CN106432864A (en) * | 2016-08-31 | 2017-02-22 | 浙江省现代纺织工业研究院 | Manufacturing method for high-density polyethylene anti-molten-drop flame-retardant engineering clamping plate |
| CN106589997A (en) * | 2016-12-10 | 2017-04-26 | 黄山贝诺科技有限公司 | Flame-retardant wood-plastic common-squeezing material and preparation method thereof |
| CN106947277A (en) * | 2017-04-28 | 2017-07-14 | 安徽爱瑞德新材料有限公司 | Raw material, plastic-wood material and the preparation method of counter-bending chestnut shell plastic-wood material |
| CN107011692A (en) * | 2017-04-28 | 2017-08-04 | 安徽爱瑞德新材料有限公司 | Raw material, plastic-wood material and the preparation method of low temperature resistant two-layer compound plastic-wood material internal layer core component |
| CN107043549A (en) * | 2017-04-05 | 2017-08-15 | 江苏嘉景复合材料有限公司 | A kind of co-extruded plastic-wood section bar with high resilient surface |
| CN107629474A (en) * | 2017-09-14 | 2018-01-26 | 贵州思特技术有限公司 | Mechanograph and preparation method thereof |
| CN107629315A (en) * | 2017-09-05 | 2018-01-26 | 惠东美新塑木型材制品有限公司 | A kind of fire-retardant and plastic-wood section of high-weatherability |
| CN107933028A (en) * | 2017-11-20 | 2018-04-20 | 安徽森泰木塑集团股份有限公司 | A kind of bilayer PE co-extrusion wood-plastic boards and preparation method thereof |
| CN108517130A (en) * | 2018-03-23 | 2018-09-11 | 宣城福美达新材料有限公司 | A kind of flame-retardant modified co-extrusion wood plastic composite |
| CN109054417A (en) * | 2018-05-21 | 2018-12-21 | 浙江格林特木塑材料有限公司 | A kind of Wood-plastic profiles and preparation method thereof |
| CN109517402A (en) * | 2018-10-15 | 2019-03-26 | 安徽国风木塑科技有限公司 | A kind of pre-stress fibre Wood-plastic floor |
| CN111231469A (en) * | 2020-03-27 | 2020-06-05 | 安徽森泰木塑集团股份有限公司 | Double-layer PE co-extrusion wood-plastic plate and preparation method thereof |
| CN116041817A (en) * | 2021-10-28 | 2023-05-02 | 国家能源投资集团有限责任公司 | Polyethylene composition, polyethylene material, polyethylene sheet, preparation method of polyethylene sheet and application of polyethylene sheet in mining pavement |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183274A (en) * | 2016-08-31 | 2016-12-07 | 浙江省现代纺织工业研究院 | A kind of preparation method of high density polyethylene (HDPE) aging resistance composite plate |
| CN106432864A (en) * | 2016-08-31 | 2017-02-22 | 浙江省现代纺织工业研究院 | Manufacturing method for high-density polyethylene anti-molten-drop flame-retardant engineering clamping plate |
| CN106589997A (en) * | 2016-12-10 | 2017-04-26 | 黄山贝诺科技有限公司 | Flame-retardant wood-plastic common-squeezing material and preparation method thereof |
| CN107043549A (en) * | 2017-04-05 | 2017-08-15 | 江苏嘉景复合材料有限公司 | A kind of co-extruded plastic-wood section bar with high resilient surface |
| CN106947277A (en) * | 2017-04-28 | 2017-07-14 | 安徽爱瑞德新材料有限公司 | Raw material, plastic-wood material and the preparation method of counter-bending chestnut shell plastic-wood material |
| CN107011692A (en) * | 2017-04-28 | 2017-08-04 | 安徽爱瑞德新材料有限公司 | Raw material, plastic-wood material and the preparation method of low temperature resistant two-layer compound plastic-wood material internal layer core component |
| CN107629315A (en) * | 2017-09-05 | 2018-01-26 | 惠东美新塑木型材制品有限公司 | A kind of fire-retardant and plastic-wood section of high-weatherability |
| CN107629474A (en) * | 2017-09-14 | 2018-01-26 | 贵州思特技术有限公司 | Mechanograph and preparation method thereof |
| CN107933028A (en) * | 2017-11-20 | 2018-04-20 | 安徽森泰木塑集团股份有限公司 | A kind of bilayer PE co-extrusion wood-plastic boards and preparation method thereof |
| CN108517130A (en) * | 2018-03-23 | 2018-09-11 | 宣城福美达新材料有限公司 | A kind of flame-retardant modified co-extrusion wood plastic composite |
| CN109054417A (en) * | 2018-05-21 | 2018-12-21 | 浙江格林特木塑材料有限公司 | A kind of Wood-plastic profiles and preparation method thereof |
| CN109517402A (en) * | 2018-10-15 | 2019-03-26 | 安徽国风木塑科技有限公司 | A kind of pre-stress fibre Wood-plastic floor |
| CN109517402B (en) * | 2018-10-15 | 2021-09-17 | 安徽国风木塑科技有限公司 | Prestressed fiber wood-plastic floor |
| CN111231469A (en) * | 2020-03-27 | 2020-06-05 | 安徽森泰木塑集团股份有限公司 | Double-layer PE co-extrusion wood-plastic plate and preparation method thereof |
| CN116041817A (en) * | 2021-10-28 | 2023-05-02 | 国家能源投资集团有限责任公司 | Polyethylene composition, polyethylene material, polyethylene sheet, preparation method of polyethylene sheet and application of polyethylene sheet in mining pavement |
| CN116041817B (en) * | 2021-10-28 | 2024-09-03 | 国家能源投资集团有限责任公司 | Polyethylene composition, polyethylene material, polyethylene sheet, preparation method of polyethylene sheet and application of polyethylene sheet in mining pavement |
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