CN103073906B - Polyethylene wood plastic and preparation method thereof - Google Patents
Polyethylene wood plastic and preparation method thereof Download PDFInfo
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- CN103073906B CN103073906B CN201310044794.7A CN201310044794A CN103073906B CN 103073906 B CN103073906 B CN 103073906B CN 201310044794 A CN201310044794 A CN 201310044794A CN 103073906 B CN103073906 B CN 103073906B
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92019—Pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a polyethylene wood plastic and a preparation method thereof and belongs to the technical field of plastic compound modifying processing. The invention provides a formula of the polyethylene wood plastic and a preparation method for a section bar; extruding temperature and extruding speed are increased; a polyethylene wood plastic section bar produced according to the preparation method has excellent high-temperature resistance; and according to the technical scheme, the polyethylene wood plastic comprises the following raw materials in parts by weight: 30-40 parts of polyethylene, 50-70 parts of wood flour, 0.5-2 parts of maleic anhydride grafted polyethylene, 0.8-1.5 parts of polyethylene wax, 1-3 parts of zinc stearate, 2-6 parts of toner, 0.5-1 part of antioxidant, 0.4-0.9 part of anti-ultraviolet light absorber UV-531 and 0.5-1.2 parts of stearic acids. The preparation method provided by the invention is suitable for the extruding molding of the polyethylene wood plastic section bar.
Description
Technical field
A kind of polyethylene wood-plastic of the present invention and preparation method thereof, belongs to the composite modified processing technique field of plastics.
Background technology
The forest reserves play vital effect to the ecotope that the protection mankind depend on for existence.China's wood consumption is very large, need cut down more than 20 ten thousand mu of forests every year and just can satisfy the demand.Due to the felling of the forest reserves, the destruction of vegetation, ecotope goes from bad to worse, and soil sandification increasingly sharpens.If build a wood-like plastics factory, within 1 year, then can produce and be equivalent to 1667m
3the Wood-plastic material of round log, is equivalent to the timber yield of about 174 mu of forests.In order to preserve the ecological environment, people propose the slogan of " giving descendants forest ", propose not deforestation requirement, seek the significant of substitute for wood as seen.Wood-plastic material can replace timber comprehensively, to the national valuable forest reserves of saving, preserves the ecological environment and has extremely far-reaching important meaning.
As a kind of novel wood substitute material, lignin plastics can be widely used in the field such as building decoration and packaging, as corner line, wood shavings lath, curtain, door socket, floor, hedge, baseboard, fine arts plate, window shutter, picture frame, photo frame, window frame, toy and common wealth furniture articles for use etc., most interior/exterior decoration building materials all can manufacture with lignin plastics.Specific value obtains it is noted that Wood-plastic material has waterproof, fire-proof function, thus can be used for the decoration of kitchen, washroom etc., and this be log institute can not and.Mould woodwork and now caused international extensive attention, be described as environmental protection type material, be rich in development potentiality and wide prospect of the application.
As important a member of Mu Su extended family, the product of polyethylene wood-plastic mainly based on outdoor gardens construction, as guardrail, floor, refuse container, Hua Chi, pallet etc.Polyethylene wood moulding material is very outstanding in water-repellancy and preservative property.But existing polyethylene wood-plastic production technology, polyethylene wood-plastic section bar extrusion speed is slow, and wall scroll production line output is not fully up to expectations.How improving the extruded velocity of polyethylene wood-plastic, is the problem that numerous Wood-plastic profiles manufacturer faces solution.And polyethylene wood-plastic itself also has the shortcoming of the yielding bending or stress cracking of high temperature.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides a kind of polyethylene wood-plastic formula and preparation method, improves extrusion temperature and extruded velocity, and the polyethylene wood plastic section bar produced according to the present invention has excellent resistance to elevated temperatures.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of polyethylene wood-plastic, and the raw material adopted is prepared according to following weight part:
Polyethylene 30-40 part, wood powder 50-70 part, maleic anhydride grafted polyethylene 0.5-2 part, polyethylene wax 0.8-1.5 part, Zinic stearas 1-3 part, toner 2-6 part, antioxidant 0.5-1 part, ultraviolet-resistant absorbent UV-531 0.4-0.9 part, stearic acid 0.5-1.2 part.
Described antioxidant is antioxidant 168, antioxidant 1010 or antioxidant B215 one wherein.
Described antioxidant 168 is tricresyl phosphite [2,4-di-tert-butyl-phenyl] ester; Antioxidant 1010 is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Antioxidant B215 is the synergistic mixture of antioxidant 168 and antioxidant 1010.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 90 DEG C-105 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
The beneficial effect that the present invention compared with prior art has is.
1. the granulating extruder that the present invention adopts has nine warm areas, and material plasticizing and mixing are more even, and the polyethylene material ground that follow-up workshop section is extruded is more even, and mechanical property is more excellent.
2. the present invention adopt antioxidant 168 and antioxidant 1010 with the use of, substantially increase the oxidation resistant ability of polyethylene wood-plastic.
3. the extrusion temperature of common polythene Wood-plastic profiles is at 170-180 DEG C, and extrusion temperature of the present invention is 190 DEG C, moulds extrusion temperature 10-20 DEG C higher than common polythene wood, and the high temperature resistant deformability of products obtained therefrom is good.
4. the present invention adopts higher extrusion temperature, improves the extruded velocity of polyethylene wood-plastic, namely improves production efficiency.
5. extruder die head of the present invention adopts oil cooling temperature control, and die temperature is stablized, and the polyethylene wood-plastic performance of production is more stable.
The effect of auxiliary agent in formula: maleic anhydride grafted polyethylene is coupling agent, improves the consistency of polyethylene and wood powder, can increase the counter-bending surging force of product; Polyethylene wax is internal lubricant, increases the mobility of molten materials; Zinic stearas is external lubricant and stablizer, reduces the resistance to flow between molten materials and forcing machine barrel and screw rod, and the stability of polyethylene molecule under ensureing high temperature; Antioxidant improves polyethylene wood plastic section bar efflorescence prevention and aging-resistant ability, extends the work-ing life of section bar; The section bar that ultraviolet-resistant absorbent UV-531 can prevent solar radiation from causing fades; Stearic acid is cold resistant plasticizer and lubricant.
Auxiliary agent used in the present invention originates from Qingdao Sai Nuo novel material company limited.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of polyethylene wood-plastic, the raw material adopted is prepared according to following weight part:
Polyethylene 35 parts, wood powder 60 parts, maleic anhydride grafted polyethylene 1.5 parts, polyethylene wax 0.8 part, Zinic stearas 2 parts, toner 2 parts, antioxidant 0.8 part, ultraviolet-resistant absorbent UV-531 0.6 part, stearic acid 0.8 part.
Described antioxidant is antioxidant 168, i.e. tricresyl phosphite [2,4-di-tert-butyl-phenyl] ester.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 90 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
Embodiment 2
A kind of polyethylene wood-plastic, the raw material adopted is prepared according to following weight part:
Polyethylene 30 parts, wood powder 50 parts, maleic anhydride grafted polyethylene 0.5 part, polyethylene wax 1 part, Zinic stearas 1 part, toner 3 parts, antioxidant 0.5 part, ultraviolet-resistant absorbent UV-531 0.5 part, stearic acid 1 part.
Described antioxidant is antioxidant 168, i.e. tricresyl phosphite [2,4-di-tert-butyl-phenyl] ester.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 95 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
Embodiment 3
A kind of polyethylene wood-plastic, the raw material adopted is prepared according to following weight part:
Polyethylene 40 parts, wood powder 70 parts, maleic anhydride grafted polyethylene 2 parts, polyethylene wax 1.5 parts, Zinic stearas 3 parts, toner 6 parts, antioxidant 1 part, ultraviolet-resistant absorbent UV-531 0.9 part, stearic acid 1.2 parts.
Described antioxidant is antioxidant B215.
Described antioxidant B215 is the synergistic mixture of antioxidant 168 and antioxidant 1010.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 99 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
Embodiment 4
A kind of polyethylene wood-plastic, the raw material adopted is prepared according to following weight part:
Polyethylene 35 parts, wood powder 65 parts, maleic anhydride grafted polyethylene 1.5 parts, polyethylene wax 1.2 parts, Zinic stearas 2 parts, toner 5 parts, antioxidant 0.8 part, ultraviolet-resistant absorbent UV-531 0.8 part, stearic acid 0.5 part.
Described antioxidant is antioxidant 1010, i.e. four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 102 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
Embodiment 5
A kind of polyethylene wood-plastic, the raw material adopted is prepared according to following weight part:
Polyethylene 40 parts, wood powder 50 parts, maleic anhydride grafted polyethylene 1.2 parts, polyethylene wax 1.5 parts, Zinic stearas 2 parts, toner 2 parts, antioxidant 0.5 part, ultraviolet-resistant absorbent UV-531 0.4 part, stearic acid 0.8 part.
Described antioxidant is antioxidant B215.
Described antioxidant B215 is the synergistic mixture of antioxidant 168 and antioxidant 1010.
Described ultraviolet-resistant absorbent UV-531 is Octabenzone.
A kind of preparation method of polyethylene wood-plastic carries out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 105 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the minimum temperature of parallel double-screw extruder material melts plasticizing is 135 DEG C, and the temperature of extrusion neck ring mold is 150 DEG C; The temperature of conical double screw extruder feed end is 250 DEG C, and the temperature of extrusion neck ring mold is 190 DEG C, and temperature therebetween controls to be successively decreased to extrusion neck ring mold gradient by feed end.
Described parallel double-screw extruder is divided into 9 temperature ranges from feed end to extrusion neck ring mold, and the temperature of each temperature range is as follows:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
The extrusion die of described conical double screw extruder adopts oil cooling temperature control.
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 explanation of the present invention and can not limit invention, claims indicate scope of the present invention, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (3)
1. a polyethylene wood-plastic, is characterized in that adopted raw material is prepared according to following weight part:
Polyethylene 30-40 part, wood powder 50-70 part, maleic anhydride grafted polyethylene 0.5-2 part, polyethylene wax 0.8-1.5 part, Zinic stearas 1-3 part, toner 2-6 part, antioxidant 0.5-1 part, ultraviolet-resistant absorbent UV-531 0.4-0.9 part, stearic acid 0.5-1.2 part;
The preparation of polyethylene wood-plastic is carried out according to following steps:
First described wood powder and polyethylene are sent into high-speed mixer heating mixing, when material temperature reaches 90 DEG C-105 DEG C, after adding described maleic anhydride grafted polyethylene, polyethylene wax, Zinic stearas, toner, antioxidant, ultraviolet-resistant absorbent UV-531 and stearic acid mixing 5min again, deliver to parallel double-screw extruder extruding pelletization, gained pellet is delivered to conical double screw extruder extrusion moulding, after cooling and shaping, obtains finished product polyethylene wood-plastic; Wherein the working temperature of parallel double-screw extruder is 135 DEG C-150 DEG C, and the working temperature of conical double screw extruder is 190 DEG C-250 DEG C;
Described parallel double-screw extruder is divided into 9 temperature ranges, and the temperature in each interval is:
1 140 DEG C-145 DEG C, district, 2 140 DEG C, districts, 3 135 DEG C-140 DEG C, districts, 4 140 DEG C-143 DEG C, districts, 5 140 DEG C-143 DEG C, districts, 6 144 DEG C, districts, 7 145 DEG C, districts, 8 145 DEG C-148 DEG C, districts, 9 148 DEG C-150 DEG C, districts.
2. a kind of polyethylene wood-plastic according to claim 1, is characterized in that described antioxidant is antioxidant 168, antioxidant 1010 or antioxidant B215 one wherein.
3. a kind of polyethylene wood-plastic according to claim 1, is characterized in that the extrusion die of described conical double screw extruder adopts oil cooling temperature control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310044794.7A CN103073906B (en) | 2013-02-05 | 2013-02-05 | Polyethylene wood plastic and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044794.7A CN103073906B (en) | 2013-02-05 | 2013-02-05 | Polyethylene wood plastic and preparation method thereof |
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| CN103073906A CN103073906A (en) | 2013-05-01 |
| CN103073906B true CN103073906B (en) | 2015-01-07 |
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| US6344504B1 (en) * | 1996-10-31 | 2002-02-05 | Crane Plastics Company Limited Partnership | Extrusion of synthetic wood material |
| CN1880376B (en) * | 2006-05-17 | 2010-05-12 | 安徽国风集团有限公司 | Bran powder type thermoplastic wood plastic composite material and its preparing process |
| CN101481477B (en) * | 2009-01-31 | 2011-05-04 | 戴福寿 | Wood-plastic material and preparation thereof |
| CN101708617B (en) * | 2009-11-25 | 2012-05-09 | 宜兴森诺塑胶复合制品有限公司 | Anti-ageing wood-plastic composite board and preparation method thereof |
| CN101787167B (en) * | 2010-02-26 | 2011-08-03 | 华南师范大学 | High-performance antibiosis wood plastic composite material and preparation method thereof |
| JP2012172147A (en) * | 2011-02-21 | 2012-09-10 | Sharumu Marutaka:Kk | Wood powder resin pellet |
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| WO2019218217A1 (en) * | 2018-05-16 | 2019-11-21 | 增城市碧桂园物业发展有限公司 | Wall system integrating high-voltage and low-voltage cables |
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