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A new type of green, environment-friendly and energy-saving wood-plastic composite board for automobile compartment board and its preparation method

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: 2016-09-07
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 delamination, and the strength is greatly reduced
[0005] Chinese patent application CN101613503A discloses a water-resistant wood-plastic composite material, which is made of 1%-65% modified wood powder, 25%-98% polyolefin matrix and 1%-10% compatibilizer. Low water absorption, but poor sheet strength
Chinese patent application CN1482166A discloses a wood-plastic composite material. The wood-plastic composite material is made of thermoplastic resin, wood powder, additive phase solvent, modifier and other raw materials mixed according to weight ratio. The mechanical properties of the board are high. , but not waterproof, mildew-proof, can not be used as a baffle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033]Its preparation method includes the following steps: 1) Mixing: put 45-55% of wood powder into a high-speed mixer, add 2-3% of compound lubricants for high-speed mixing when the temperature is raised to 80-90 ° C, and heat up to 105 Add 30-40% high-density polyethylene, 0.2-0.5% antioxidant, 0.2-0.5% ultraviolet absorber, 0.5-1% anti-mold and antibacterial agent, 6-10% reinforcing agent at -115°C , 6-10% graft compatibilizer and 6-10% talcum powder filler, continue to mix at a high speed to 120-130 ° C and cool down to the cold mixer; 2) Granulation: the mixed and cooled material is passed through a special The special granulator is pre-plasticized at 160-190 ℃, and is cut into particles with a certain diameter and length through a special mold and rotating. 3) Extrusion molding: the prepared particles are formed into a plate with a certain cross-section through a mold with a specific end face through a special extrusion equipment under a molding process at 150-180 °C. ...

Embodiment 1

[0040] Put 50 parts of wood powder (80 mesh) into a high-speed mixer, add 3 parts of wood-plastic special compound lubricant when the temperature rises to 80-90°C and mix at high speed, and add high-density polyethylene 40 when the temperature rises to 105-115°C Parts, 0.5 parts of 1010 antioxidant, 0.5 parts of BP12 ultraviolet absorber, 8 parts of graft compatibilizer of graft copolymer obtained by grafting maleic anhydride to polyolefin (PE, PP), 8 parts of anti-mold and antibacterial for wood-plastic 1 part of agent, 10 parts of chlorinated polyethylene (CPE) reinforcing agent and 10 parts of talcum powder, continue to mix at high speed to 120-130 ° C and cool down in the cold mixer. The mixed and cooled material is pre-plasticized at 160-190°C by a special granulator, and then cut into particles of a certain diameter and length by a special mold and rotating. Finally, the prepared particles are molded into a plate with a certain cross-section through a mold with a specifi...

Embodiment 2

[0043] Operation is the same as in Example 1, get 45 parts of wood flour (80 orders), 2.5 parts of wood-plastic composite lubricants, 35 parts of high-density polyethylene, 0.3 part of 1076 antioxidant, 0.3 part of 326 ultraviolet absorber, ethylene-vinyl acetate 8 parts of graft compatibilizers of the graft copolymer obtained by copolymer resin grafting maleic anhydride, 0.8 parts of anti-mildew and antibacterial agent for wood-plastic, 7.6 parts of ethylene-vinyl acetate copolymer (EVA) reinforcing agent and talcum powder 8 servings.

[0044] The wood-plastic composite board (250 specifications) processed according to the above steps is applied to the high-end light truck newly developed by Jianghuai Group as the floor and baffle of the carriage. The wood-plastic composite board has no damage and is basically intact.

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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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Patent Type & Authority Patents(China)
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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