Novel environment-friendly energy-saving wood-plastic composite board for truck carriages and preparation method of novel environment-friendly energy-saving wood-plastic composite board

A wood-plastic composite, green and environmentally friendly technology, applied in the field of polymer materials, can solve the problems of easily damaged surface, large thickness tolerance of bamboo plywood, low repeated use rate, etc. good stability

Active Publication Date: 2012-08-22
ANHUI RED FOREST NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also the following important problems: 1) The thickness tolerance of bamboo plywood is large. Since the bamboo curtains and bamboo mats used in the production of bamboo plywood are processed from different places and different farmers, the thickness of each strip has a large tolerance ; 2) The glue strength is not enough, the bamboo plywood is delaminated, vulnerable, and the repeated use rate is low; 3) The surface treatment is cut corners and the difference in the glue used for the coating makes the surface easy to be damaged; 4) If the bamboo plywood is dipped in glue Not good, it is easy to absorb water, resulting in delamination and del

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] The preparation method includes the following steps: 1) Mixing: Put 45-55% of wood flour into a high-speed mixer, stir at high speed and add 2-3% of compound lubricant when the temperature is raised to 80-90°C for high-speed mixing, and heat to 105 Add 30-40% high-density polyethylene, 0.2-0.5% antioxidant, 0.2-0.5% ultraviolet absorber, 0.5-1% anti-mildew and antibacterial agent, and 6-10% enhancer at -115℃ , 6-10% grafting compatibilizer and 6-10% talc filler, continue to mix at high speed to 120-130℃ and then cool down to the cold mixer; 2) Granulation: pass the mixed and cooled materials through a special The pelletizer is pre-plasticized at 160-190°C, and cut into particles with a certain diameter and length through a special mold and rotating. 3) Extrusion molding: the manufactured particles are formed into a certain cross-section plate through a special extrusion equipment at a temperature of 150-180°C through a die with a specific end face.

[0034] In the above c...

Example Embodiment

[0039] Example 1

[0040] Put 50 parts of wood flour (80 mesh) into the high-speed mixer, stir at high speed and add 3 parts of special compound lubricant for wood plastic when the temperature is raised to 80-90℃ for high-speed mixing, and add high-density polyethylene 40 when the temperature is raised to 105-115℃ Parts, 1010 antioxidant 0.5 parts, BP12 ultraviolet absorber 0.5 parts, polyolefin (PE, PP) grafted maleic anhydride graft copolymer graft compatibilizer 8 parts, wood plastic special anti-mildew and antibacterial 1 part of chlorinated polyethylene (CPE) enhancer and 10 parts of talc, continue to mix at high speed to 120-130°C until the cold mixer cools. The mixed and cooled materials are pre-plasticized at 160-190°C through a special granulator, and are cut into particles with a certain diameter and length through a special mold and rotating. Finally, the manufactured particles are formed into a plate with a certain section through a die with a specific end face under...

Example Embodiment

[0042] Example 2

[0043] The operation is the same as in Example 1. Take 45 parts of wood flour (80 mesh), 2.5 parts of wood-plastic compound lubricant, 35 parts of high-density polyethylene, 0.3 parts of 1076 antioxidant, 0.3 parts of 326 ultraviolet absorber, ethylene-vinyl acetate 8 parts of graft compatibilizer of graft copolymer obtained by grafting maleic anhydride with copolymer resin, 0.8 part of special anti-mold and antibacterial agent for wood plastic, 7.6 parts of ethylene-vinyl acetate copolymer (EVA) reinforcing agent and talc 8 servings.

[0044] The wood-plastic composite board (250 specification) processed according to the above steps is applied to the newly developed high-end light truck of Jianghuai Group as the bottom plate and baffle of the carriage. After 30,000 kilometers of destructive testing at the Dingyuan National Automobile Proving Ground in Anhui, The wood-plastic composite board has no damage and is basically intact.

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PUM

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Abstract

The invention discloses a novel environment-friendly energy-saving wood-plastic composite board for truck carriages and a preparation method of the novel environment-friendly energy-saving wood-plastic composite board. The composite board is obtained by mixing wooden powder and HDPE (high-density polyethylene) resin with surface treating agent, processing auxiliaries, intensifier and compatilizer according to a certain proportion in a high-speed mixer by means of characteristics of high-polymer interface chemical principles and plastic filling modification, pelleting to obtain the composite board material through an extruder after mixing. The processed wood-plastic composite board material has the advantages of simple-substance materials including plastic, wood and metal and the like, can be used as bottom boards and retaining board of carriages of light trucks and van trucks and substitute for conventional wooden boards, bamboo plywood boards and steel boards, waterproof, mildew-proof and formaldehyde-free effect, improving grade of the trucks, environment friendliness and recycling of resources are realized.

Description

technical field [0001] The invention relates to a wood-plastic composite material in the field of polymer materials and a preparation method thereof, and more specifically relates to a novel green, environment-friendly and energy-saving wood-plastic composite board for automobile compartment panels and a preparation method thereof. Background technique [0002] At present, the floor and baffle of high-end light trucks and vans on the market are generally made of bamboo plywood or steel plate. It has the advantages of large format, high strength and low cost. But there are also the following important problems: 1) The thickness tolerance of bamboo plywood is large. Since the bamboo curtains and bamboo mats used in the production of bamboo plywood are processed from different places and different farmers, the thickness of each strip has a large tolerance ; 2) The glue strength is not enough, the bamboo plywood is delaminated, vulnerable, and the repeated use rate is low; 3) T...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08K13/02C08K3/34B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 林建国
Owner ANHUI RED FOREST NEW MATERIAL TECH
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