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Preparation method of carbon nanotube reinforced light-weight wood-plastic composite material

A technology of wood-plastic composite materials and carbon nanotubes, which is applied in the field of preparation of carbon nanotube-reinforced lightweight wood-plastic composite materials, can solve problems such as failure to meet actual requirements, limited application range, and high installation costs, and achieve broad economic prospects and Social benefit, reduction of volume resistivity and surface resistivity, effect of density reduction

Inactive Publication Date: 2017-06-13
JIUJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-silica, nano-calcium carbonate, nano-fibers, carbon nano-tubes, wood fibers and plastics are used to prepare high-modulus, high-strength nano-wood-plastic composites. Although they can meet the requirements of mechanical properties, their density is relatively high. Usually 2~3 times of wood density, high self-weight, relatively high installation cost of the product, unable to meet actual requirements, therefore, its application range is greatly limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation steps of carbon nanotube reinforced lightweight PP wood-plastic composite material:

[0029] (1) Raw material preparation: put 80-mesh pine wood powder in a drying oven and dry at 105°C for more than 10 hours until the water mass fraction is <2% for later use; take 50 parts of dried pine wood powder and 1.5 parts of hydroxylated carbon nanotubes (average diameter: 20nm, average length: 8μm), 2 parts of polyethylene glycol 300, 3 parts of ethanol solution of KH-570 silane coupling agent (the mass content of coupling agent is 20%, the mass content of ethanol is 70%, water The mass content is 10%) into the mixer, set the temperature in the range of 80~100°C, set the speed in the range of 200~300rpm, mix and stir for 20 minutes, put the material in the drying box or drying room at 100°C, Dry for 10 hours to obtain activated carbon nanotube pretreatment material powder;

[0030] (2) Mixing treatment: heat up the mixer to 190°C, then add 35 parts of polypropylene...

Embodiment 2

[0034] Preparation steps of carbon nanotube reinforced lightweight PE wood-plastic composite material:

[0035] (1) Preparation of raw materials: Put 50 mesh poplar wood powder in a drying room, dry at 105°C for more than 10 hours, until the water mass fraction is <2% for later use; take 45 parts of dried poplar wood powder, 1.5 parts of carboxylated carbon Nanotubes (average diameter: 30nm, average length: 12μm), 2 parts of polyethylene glycol 300, 3 parts of KH-550 silane coupling agent ethanol solution (the mass content of the coupling agent is 20%, and the mass content of ethanol is 70% , the water mass content is 10%) into the mixer, set the temperature in the range of 80~100°C, set the speed in the range of 200~300rpm, mix and stir for 20 minutes, put the material in the drying box or drying room at 100°C Down, dry 10h, obtain the activated carbon nanotube pretreatment material powder;

[0036] (2) Mixing treatment: heat up the mixer to 180°C, then add 40 parts of high-...

Embodiment 3

[0040] The preparation steps of carbon nanotube reinforced lightweight PVC bamboo-plastic composite material:

[0041] (1) Raw material preparation: put 100 mesh bamboo powder in a drying oven or a drying room, and dry at 105°C for more than 10 hours until the water mass fraction is <2% for later use; take 40 parts of dried bamboo wood powder, and 1.0 part of short Cut carbon nanotubes (average diameter: 15nm, average length: 15μm), 2 parts polyethylene glycol 300, 4 parts JTW-101 titanate coupling agent ethanol solution (the mass content of the coupling agent is 20%, the mass content of ethanol 70%, water content is 8%) into the mixer, set the temperature in the range of 80~100°C, set the speed in the range of 200~300rpm, mix and stir for 20 minutes and put the material in the drying box or drying room drying at 110° C. for 10 hours to obtain activated carbon nanotube pretreatment material powder;

[0042] (2) Mixing treatment: heat up the mixer to 175°C, then add 45 parts o...

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Abstract

The invention relates to a preparation method of a carbon nanotube reinforced light-weight wood-plastic composite material. The composite material is composed of the following raw materials in percentage by mass: 30-70% of plastic matrix, 30-70% of plant powder, 0.5-3% of carbon nanotube, 3-8% of coupling agent, 0.1-1% of foaming agent, 0.1-1% of compatibilizer, 1-3% of lubricant, 2-4% of toughener and 0.01-0.1% of peroxide and other functional aids. By using the coupling agent, dispersing agent, lubricant and other aids, the small amount of carbon nanotubes are dispersed in both a matrix phase and a wood powder-plastic interface phase as well as in medium gaps; and the right amount of foaming agent is added to realize micro foaming treatment so as to reduce the density of the composite material, thereby enduing the wood-plastic composite material with the favorable characteristics of light weight and high strength. The prepared wood-plastic composite material has the advantages of no toxicity, water resistance, safety, low price and the like, has the favorable characteristics of light weight, high strength, electrostatic prevention and the like, and widens the wood-plastic composite material service environment and application range, thereby having wide economic prospects and social benefits.

Description

technical field [0001] The invention relates to a method for preparing a carbon nanotube reinforced lightweight wood-plastic composite material, and specifically belongs to the technical field of polymer composite materials. Background technique [0002] With the progress of human society, ecological and environmentally friendly materials are more and more popular, which makes wood-plastic composite materials emerge as the times require. Wood-plastic composite materials use plant fibers as the main raw material. It is a new type of composite material that is made by mixing resins in a certain proportion and adding related additives, and then through mixing, high temperature, processing and molding. Wood-plastic composite material is a new type of environmentally friendly material with wide application, good performance and high added value, which represents one of the industrial development directions of modern materials. At present, wood-plastic composite materials are u...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/12C08L23/08C08L23/06C08L91/06C08K13/06C08K9/06C08K9/04C08K7/24C08J9/10
CPCC08L97/02C08J9/102C08J9/103C08J2203/04C08J2323/06C08J2397/02C08J2423/06C08J2423/12C08J2497/02C08K2201/001C08K2201/003C08K2201/004C08K2201/011C08L23/06C08L2201/04C08L2203/14C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L2207/04C08L2207/062C08L23/12C08L23/0815C08K13/06C08K9/06C08K7/24C08L91/06C08K9/04
Inventor 杨涛乔波谢雨君黄卫李国朝蔡城辉
Owner JIUJIANG UNIVERSITY
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