CN103122112A - PVC (polyvinyl chloride)-based wood plastic and preparation method thereof - Google Patents

PVC (polyvinyl chloride)-based wood plastic and preparation method thereof Download PDF

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Publication number
CN103122112A
CN103122112A CN2013100642668A CN201310064266A CN103122112A CN 103122112 A CN103122112 A CN 103122112A CN 2013100642668 A CN2013100642668 A CN 2013100642668A CN 201310064266 A CN201310064266 A CN 201310064266A CN 103122112 A CN103122112 A CN 103122112A
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China
Prior art keywords
parts
pvc
moulded
sill
wood
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CN2013100642668A
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Chinese (zh)
Inventor
高江亮
吴祥
王维
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SHANXI FENGYAN NEW BUILDING MATERIAL CO Ltd
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SHANXI FENGYAN NEW BUILDING MATERIAL CO Ltd
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Priority to CN2013100642668A priority Critical patent/CN103122112A/en
Publication of CN103122112A publication Critical patent/CN103122112A/en
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Abstract

The invention relates to PVC (polyvinyl chloride)-based wood plastic and a preparation method thereof, belonging to the technical field of plastic compound modification processing. The invention aims at providing PVC-based wood plastic and a preparation method thereof which can produce a PVC-based wood-plastic section with good mechanical property and stability. The technical scheme is as follows: the PVC-based wood plastic comprises the following raw materials in parts by weight: 40-60 parts of PVC resin, 10-20 parts of wood meal, 0.2-1 part of polyethylene wax, 0.3-1 part of processing aid ACR-401, 2-6 parts of modifier CPE-135A, 1.5-4.5 parts of PVC composite heat stabilizer, 0.3-0.7 part of external lubricant, 1-3 parts of toner, 0.2-1 part of foaming agent, 2-7 parts of foaming regulator, 10-18 parts of calcium carbonate and 0.1-0.7 part of sodium bicarbonate. The preparation method provided by the invention is suitable for the extrusion molding of PVC-based wood plastic.

Description

A kind of PVC sill is moulded and preparation method thereof
Technical field
The present invention relates to a kind of PVC sill and mould and preparation method thereof, belong to the composite modified processing technique field of plastics.
Background technology
China's timber resources is very short, but has 20%~30% wood powder and tailing be used as " waste material " burning or process as solid refuse in the processing of timber and use procedure.In waste of raw materials, also cause environmental pollution to a certain degree.Conserving forests, recycle waste wood/wood powder is the inevitable requirement of social development.
It is a kind of novel green building material that wood is moulded, and the wood powder of one of its main raw material just can utilize waste wood/wood powder to process.Wood mould kept the good water tolerance of plastics and toughness compatibility timber be easy to the characteristics such as processing, asepsis environment-protecting, characteristics such as having the natural texture of timber, be not subject to the infringement of mould or termite, thermal stresses is low, moistureproof, heat insulation, corrosion-resistant, can follow closely, can dig, compressive strength is high, tailing is recyclable is widely applied in fields such as building materials, packing, transportation, decorations.
PVC wood is moulded because it not only has the performance that is similar to natural timber, have more fire prevention, protection against the tide, mothproof, ageing-resistant, the incomparable advantage of natural timber such as need not paint, and make it be widely used in furniture, all kinds of sheet material, upholstery decoration structure section, door and window profiled material.It also has extremely low heat conductivity, has good heat insulation, soundproof effect; Very low water-absorbent; High resistance to chemical corrosion makes it become the desirable select materials of chemical field.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, and technical problem to be solved is to provide a kind of PVC sill and moulds and preparation method thereof, and the PVC sill plastic section bar of producing according to the present invention has good mechanical property and thermostability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of PVC sill is moulded, and the raw material that adopts is according to following weight part proportioning:
40~60 parts of polyvinyl chloride resins, 10~20 parts of wood powders, 0.21 part of polyethylene wax, 0.3~1 part of processing aid ACR-401,2~6 parts of modifier CPE-135A, 1.5~4.5 parts of PVC one package stabilizers, 0.3~0.7 part of external lubricant, 1~3 part of toner, 0.2~1 part of whipping agent, 2~7 parts of foaming control agents, 10~18 parts, calcium carbonate, 0.1~0.7 part of sodium bicarbonate.
Described whipping agent is AC whipping agent, i.e. Cellmic C 121.
1~3:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described AC whipping agent.
Described PVC one package stabilizer is Ca-Zn composite heat stabilizer.
The raw material that described Ca-Zn composite heat stabilizer comprises has: calcium hydroxide, zinc oxide, oleic acid, Glacial acetic acid, the vitriol oil, hydrogen peroxide, catalyzer, hydrotalcite, phosphorous acid ester, beta-diketon, ethylene bis stearamide.
Described external lubricant is stearic acid or calcium stearate.
Described foaming control agent is for being processing aids acrylic resin ACR-530.
Described calcium carbonate is light active calcium carbonate.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: described polyvinyl chloride resin and wood powder are added in the high speed Hot mixer mix, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, the PVC one package stabilizer, external lubricant, toner, whipping agent, foaming control agent, calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 170 ℃~180 ℃, material is entered in low speed cold mixing machine mix, when material temperature is cooled to 25 ℃~30 ℃, the material that mixes is delivered to extruder for shaping, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Described forcing machine is conical double screw extruder.
The present invention compared with prior art, the beneficial effect that has is.
1. the present invention adopts the conical double screw extruder extrusion profile, and the product stability that obtains is better.
2. to adopt heat absorbing type AC whipping agent be that AC whipping agent and traditional heat release type AC whipping agent of modification is used in conjunction with for whipping agent of the present invention, the heat absorbing type AC foaming agent decomposition temperature of modification is lower, only cause the small thermal change of system, and be endothermic process, be conducive to the stable and foaming process of course of processing melt viscosity, relaxed sudden that traditional heat release type AC whipping agent decomposes; But the more traditional heat release type of the heat absorbing type AC whipping agent gas release AC whipping agent of modification, both are used in conjunction with, and foaming effect obviously improves, and the products obtained therefrom foam structure is finer and close had evenly both reduced production cost, had guaranteed again good mechanical property.
The effect of auxiliary agent in formula: polyethylene wax is internal lubricant, increases the mobility of molten materials; Processing aid ACR-401 has stronger promotion plasticizing and improves mobilization PVC, can reduce significantly various interpolation compositions and deposit at finished surface, boosts productivity; Modifier CPE-135A is anti-impact modifier, is used for improving the low temperature brittleness that the PVC sill is moulded, and gives its higher toughness; The PVC one package stabilizer can prevent the PVC thermolysis, increases the stability of moulding process; Stearic acid and calcium stearate have the effect of lubricant and stablizer; Calcium carbonate can improve as weighting agent stability, hardness and the stiffness that the PVC sill is moulded size, improves thermotolerance and the astigmatism of its processing characteristics and goods thereof; Whipping agent and sodium bicarbonate be vesicant effect all, is lowered into the intensity of producing cost and can improve material; Foaming control agent can be controlled gas release.
In the present invention, the adjuvant used polyethylene wax that removes originates from Qingdao match promise novel material company limited, and all the other all originate from sea, Qingdao auspicious specialization work Materials Co., Ltd.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
40 parts of polyvinyl chloride resins, 12 parts of wood powders, 0.4 part of polyethylene wax, 0.3 part of processing aid ACR-401,2 parts of modifier CPE-135A, 2 parts of Ca-Zn composite heat stabilizers, 0.3 part of stearic acid, 1 part of toner, 0.4 part of whipping agent, 3 parts of ACR-530,10 parts of light active calcium carbonates, 0.3 part of sodium bicarbonate.
1:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, stearic acid, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 170 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 26 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Embodiment 2
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
45 parts of polyvinyl chloride resins, 10 parts of wood powders, 0.2 part of polyethylene wax, 0.5 part of processing aid ACR-401,3 parts of modifier CPE-135A, 1.5 parts of Ca-Zn composite heat stabilizers, 0.4 part of calcium stearate, 2 parts of toners, 0.2 part of whipping agent, 4 parts of ACR-530,12 parts of light active calcium carbonates, 0.1 part of sodium bicarbonate.
2:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, calcium stearate, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 172 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 25 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Embodiment 3
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
50 parts of polyvinyl chloride resins, 15 parts of wood powders, 1 part of polyethylene wax, 1 part of processing aid ACR-401,4 parts of modifier CPE-135A, 3 parts of Ca-Zn composite heat stabilizers, 0.6 part of calcium stearate, 3 parts of toners, 0.8 part of whipping agent, 2 parts of ACR-530,15 parts of light active calcium carbonates, 0.7 part of sodium bicarbonate.
3:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, calcium stearate, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 175 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 28 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Embodiment 4
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
55 parts of polyvinyl chloride resins, 20 parts of wood powders, 1 part of polyethylene wax, 1 part of processing aid ACR-401,6 parts of modifier CPE-135A, 4.5 parts of Ca-Zn composite heat stabilizers, 0.7 part of stearic acid, 2 parts of toners, 0.9 part of whipping agent, 6 parts of ACR-530,18 parts of light active calcium carbonates, 0.2 part of sodium bicarbonate.
2:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, stearic acid, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 174 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 29 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Embodiment 5
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
60 parts of polyvinyl chloride resins, 18 parts of wood powders, 0.8 part of polyethylene wax, 0.8 part of processing aid ACR-401,5 parts of modifier CPE-135A, 4 parts of Ca-Zn composite heat stabilizers, 0.6 part of calcium stearate, 3 parts of toners, 1 part of whipping agent, ACR-5307 part, 15 parts of light active calcium carbonates, 0.4 part of sodium bicarbonate.
1:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, calcium stearate, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 180 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 30 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
Embodiment 6
A kind of PVC sill is moulded, and the raw material of following weight part proportioning is arranged:
55 parts of polyvinyl chloride resins, 15 parts of wood powders, 0.5 part of polyethylene wax, 0.6 part of processing aid ACR-401,4 parts of modifier CPE-135A, 1.5 parts of Ca-Zn composite heat stabilizers, 0.4 part of stearic acid, 2 parts of toners, 0.6 part of whipping agent, 4 parts of ACR-530,12 parts of light active calcium carbonates, 0.3 part of sodium bicarbonate.
1:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described whipping agent.
the preparation method that a kind of PVC sill is moulded, comprise the following steps: add in high-speed mixer described polyvinyl chloride resin and wood powder hot mixed, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, Ca-Zn composite heat stabilizer, stearic acid, toner, whipping agent, ACR-530, light active calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 178 ℃, enter in low speed mixer material cold mixed, when material temperature is cooled to 26 ℃, the material that mixes is delivered to the conical double screw extruder extrusion moulding, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
The present invention can summarize with other the specific form without prejudice to spirit of the present invention or principal character.Therefore, no matter from which point, above-mentioned embodiment of the present invention all can only be thought can not limit invention to explanation of the present invention, claims have been pointed out scope of the present invention, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, in the implication suitable with claims of the present invention and any variation in scope, all should think to be included in the scope of claims.

Claims (8)

1. a PVC sill is moulded, and it is characterized in that, the raw material that adopts is according to following weight part proportioning:
40~60 parts of polyvinyl chloride resins, 10~20 parts of wood powders, 0.2~1 part of polyethylene wax, 0.3~1 part of processing aid ACR-401,2~6 parts of modifier CPE-135A, 1.5~4.5 parts of PVC one package stabilizers, 0.3~0.7 part of external lubricant, 1~3 part of toner, 0.2~1 part of whipping agent, 2~7 parts of foaming control agents, 10~18 parts, calcium carbonate, 0.1~0.7 part of sodium bicarbonate.
2. a kind of PVC sill according to claim 1 is moulded, and it is characterized in that: 1~3:1 is formulated by weight ratio with heat release type AC blowing agent AC-100 by heat absorbing type AC blowing agent AC-220 for described AC whipping agent.
3. a kind of PVC sill according to claim 1 is moulded, and it is characterized in that: described external lubricant is stearic acid or calcium stearate.
4. a kind of PVC sill according to claim 1 is moulded, and it is characterized in that: described PVC one package stabilizer is Ca-Zn composite heat stabilizer.
5. a kind of PVC sill according to claim 1 is moulded, and it is characterized in that: described foaming control agent is for being processing aids acrylic resin ACR-530.
6. a kind of PVC sill according to claim 1 is moulded, and it is characterized in that: described calcium carbonate is light active calcium carbonate.
7. preparation method that PVC sill claimed in claim 1 is moulded, it is characterized in that, comprise the following steps: described polyvinyl chloride resin and wood powder are added in the high speed Hot mixer mix, when the mixing of materials temperature reaches 80 ℃, add described polyethylene wax, processing aid ACR-401, modifier CPE-135A, the PVC one package stabilizer, external lubricant, toner, whipping agent, foaming control agent, calcium carbonate, sodium bicarbonate, when batch mixing to temperature reaches 170 ℃~180 ℃, material is entered in low speed cold mixing machine continue to mix when making material temperature be cooled to 25 ℃~30 ℃, the material that mixes is delivered to extruder for shaping, the section bar of extruding is finalized the design through water cooling, cutting, obtain finished section bar.
8. the preparation method that moulds of a kind of PVC sill according to claim 7, it is characterized in that: described forcing machine is conical double screw extruder.
CN2013100642668A 2013-03-01 2013-03-01 PVC (polyvinyl chloride)-based wood plastic and preparation method thereof Pending CN103122112A (en)

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CN103304946A (en) * 2013-06-27 2013-09-18 焦作市力佳门窗型材有限公司 Anti-impact ASA modified section and production method
CN103319805A (en) * 2013-06-20 2013-09-25 吴江市董鑫塑料包装厂 High-strength PVC (Polyvinyl Chloride) wood-plastic plastic
CN103396633A (en) * 2013-07-31 2013-11-20 广东晨宝复合材料有限公司 Wood-plastic plate material with wood grains and preparation method thereof
CN103421258A (en) * 2013-07-22 2013-12-04 彭涛 Energy-saving environmental protection wood plastic material and preparation method thereof
CN103507541A (en) * 2013-10-28 2014-01-15 临沂康亿家生态木业有限公司 Processing method for surface textures of wood-plastic composite material
CN103602008A (en) * 2013-11-26 2014-02-26 山东瑞丰高分子材料股份有限公司 High-impact high-tenacity high-hardness PVC (Poly Vinyl Chloride) building template and production method thereof
CN103756188A (en) * 2014-01-02 2014-04-30 淄博瑞塑新型建筑模板有限公司 Weather-resisting polyvinyl chloride building plastic formwork and preparation method
CN103980627A (en) * 2014-05-04 2014-08-13 安徽正隆新材料有限公司 PVC foam board
CN104448605A (en) * 2014-11-05 2015-03-25 湖南益丰塑业有限公司 Preparation method of ecological bamboo-wood profile
CN104629223A (en) * 2015-03-23 2015-05-20 滨州世旭塑木有限公司 High-strength and environment-friendly plastic wood and processing method thereof
CN104817793A (en) * 2015-05-18 2015-08-05 长春工业大学 PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof
CN105001548A (en) * 2015-06-30 2015-10-28 江苏旭华圣洛迪建材有限公司 PVC wood plastic profile
CN105086185A (en) * 2014-05-09 2015-11-25 江苏肯帝亚木业有限公司 Wood plastic plate and preparation process thereof
CN105237910A (en) * 2015-10-26 2016-01-13 宜宾天原集团股份有限公司 PVC wood-plastic foaming base material and preparation method thereof
CN105482287A (en) * 2014-09-18 2016-04-13 江苏宏厦门窗有限公司 High-strength wood-plastic composite material, preparation method therefor, sectional material and application thereof
CN105802062A (en) * 2016-03-31 2016-07-27 重庆沃森装饰材料有限公司 Processing process of wood-plastic composite
CN106280096A (en) * 2016-08-15 2017-01-04 嘉兴市三阳光家居科技有限公司 A kind of decorative wall panels and production technology thereof
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CN103319805A (en) * 2013-06-20 2013-09-25 吴江市董鑫塑料包装厂 High-strength PVC (Polyvinyl Chloride) wood-plastic plastic
CN103304946A (en) * 2013-06-27 2013-09-18 焦作市力佳门窗型材有限公司 Anti-impact ASA modified section and production method
CN103421258B (en) * 2013-07-22 2016-04-27 彭涛 A kind of energy-conserving and environment-protective Wood-plastic material and preparation method thereof
CN103421258A (en) * 2013-07-22 2013-12-04 彭涛 Energy-saving environmental protection wood plastic material and preparation method thereof
CN103396633A (en) * 2013-07-31 2013-11-20 广东晨宝复合材料有限公司 Wood-plastic plate material with wood grains and preparation method thereof
CN103507541A (en) * 2013-10-28 2014-01-15 临沂康亿家生态木业有限公司 Processing method for surface textures of wood-plastic composite material
CN103602008A (en) * 2013-11-26 2014-02-26 山东瑞丰高分子材料股份有限公司 High-impact high-tenacity high-hardness PVC (Poly Vinyl Chloride) building template and production method thereof
CN103602008B (en) * 2013-11-26 2016-01-20 山东瑞丰高分子材料股份有限公司 High-impact high tenacity high rigidity PVC building template and preparation method thereof
CN103756188A (en) * 2014-01-02 2014-04-30 淄博瑞塑新型建筑模板有限公司 Weather-resisting polyvinyl chloride building plastic formwork and preparation method
CN103980627A (en) * 2014-05-04 2014-08-13 安徽正隆新材料有限公司 PVC foam board
CN105086185A (en) * 2014-05-09 2015-11-25 江苏肯帝亚木业有限公司 Wood plastic plate and preparation process thereof
CN105482287A (en) * 2014-09-18 2016-04-13 江苏宏厦门窗有限公司 High-strength wood-plastic composite material, preparation method therefor, sectional material and application thereof
CN104448605A (en) * 2014-11-05 2015-03-25 湖南益丰塑业有限公司 Preparation method of ecological bamboo-wood profile
CN104629223A (en) * 2015-03-23 2015-05-20 滨州世旭塑木有限公司 High-strength and environment-friendly plastic wood and processing method thereof
CN104817793A (en) * 2015-05-18 2015-08-05 长春工业大学 PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof
CN105001548A (en) * 2015-06-30 2015-10-28 江苏旭华圣洛迪建材有限公司 PVC wood plastic profile
CN105237910A (en) * 2015-10-26 2016-01-13 宜宾天原集团股份有限公司 PVC wood-plastic foaming base material and preparation method thereof
CN106633468A (en) * 2015-11-04 2017-05-10 武汉立尔飞新材料科技有限公司 PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production
CN105802062A (en) * 2016-03-31 2016-07-27 重庆沃森装饰材料有限公司 Processing process of wood-plastic composite
CN105802062B (en) * 2016-03-31 2018-08-17 重庆沃森装饰材料有限公司 Wood plastic composite processing technology
CN106280096A (en) * 2016-08-15 2017-01-04 嘉兴市三阳光家居科技有限公司 A kind of decorative wall panels and production technology thereof
CN107501805A (en) * 2017-09-22 2017-12-22 安徽淮宿建材有限公司 A kind of Wood-plastic composite section bar and its production technology
CN108034167A (en) * 2017-12-26 2018-05-15 太仓冠联高分子材料有限公司 A kind of plastic-wood floor sizing material
CN108003514A (en) * 2017-12-29 2018-05-08 江苏正美生态木业有限公司 A kind of production method of improved PVC wood plastic boards supporting substrates and PVC wood plastic wall board
CN108485108A (en) * 2018-03-30 2018-09-04 重庆鸽牌电工材料有限公司 A kind of injection molding machine PVC foam material and manufacturing method
CN110483910A (en) * 2019-07-24 2019-11-22 宣城福美达新材料有限公司 A kind of PVC wood plastic foamed board and preparation method thereof

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