Flame-retardant antistatic wood powder/polypropylene wood-plastic composite material with silane modified conductive carbon black, and preparation method of composite material

A wood-plastic composite material, flame-retardant and anti-static technology, applied in the field of wood-plastic composite material and its preparation, can solve the problems of poor anti-static performance, poor heat resistance, poor flame retardant effect, etc., and achieve improved flame retardant performance. , the effect of reducing the dosage

Active Publication Date: 2014-02-05
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor antistatic performance, low mechanical properties, poor flame retardant effect and poor heat resistance of existing wood-plastic composite materials, the present invention provides a kind of silane-modified conductive carbon black as antistatic agent, expandable The wood po

Method used

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  • Flame-retardant antistatic wood powder/polypropylene wood-plastic composite material with silane modified conductive carbon black, and preparation method of composite material
  • Flame-retardant antistatic wood powder/polypropylene wood-plastic composite material with silane modified conductive carbon black, and preparation method of composite material
  • Flame-retardant antistatic wood powder/polypropylene wood-plastic composite material with silane modified conductive carbon black, and preparation method of composite material

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specific Embodiment approach 1

[0023] Embodiment 1: In this embodiment, the wood flour / polypropylene wood-plastic composite material is modified by weight by 50-70 parts of wood flour (WF), 30-50 parts of polypropylene (PP), and 5-30 parts of silane Conductive carbon black (M-CB), 5-30 parts of expandable graphite (EG), 3-10 parts of m-isopropenyl-α, α-dimethylbenzyl isocyanate grafted polypropylene (m-TMI-g -PP) coupling agent and 0.1 to 1 part of antioxidant.

[0024] In this embodiment, the wood powder is poplar wood powder.

[0025] In this embodiment, the antioxidant can use antioxidant 1010, antioxidant 164 or antioxidant CA.

[0026] In this embodiment, the silane-modified conductive carbon black is made of 80-150 parts by weight of conductive carbon black and 1-5 parts of silane coupling agent.

[0027] In this embodiment, the silane coupling agent may be γ-methacryloxypropyltrimethoxysilane (KH-570) or γ-aminopropyltriethoxysilane (KH-550).

[0028] In this embodiment, the raw materials can be o...

specific Embodiment approach 2

[0030] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the wood powder / polypropylene wood-plastic composite material consists of 50 parts of wood powder, 50 parts of polypropylene, and 10 parts of silane-modified conductive carbon black in parts by weight. , 20 parts of expandable graphite, 4 parts of m-isopropenyl-α, α-dimethylbenzyl isocyanate grafted polypropylene coupling agent and 0.2 parts of antioxidant 1010.

specific Embodiment approach 3

[0031] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the wood powder / polypropylene wood-plastic composite material consists of 60 parts of wood powder, 30 parts of polypropylene, and 15 parts of silane-modified conductive carbon black in parts by weight. , 10 parts of expandable graphite, 8 parts of m-isopropenyl-α, α-dimethylbenzyl isocyanate grafted polypropylene coupling agent and 0.8 parts of antioxidant.

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Abstract

The invention discloses a flame-retardant antistatic wood powder/polypropylene wood-plastic composite material with silane modified conductive carbon black and a preparation method of the composite material, and relates to a wood-plastic composite material and a preparation method thereof. The wood-plastic composite material with silane modified conductive carbon black as an antistatic agent and expansible graphite as a flame retardant is prepared from the following components in parts by weight: 50-70 parts of wood powder, 30-50 parts of polypropylene, 5-30 parts of silane modified conductive carbon black, 5-30 parts of expansible graphite, 3-10 parts of an m-isopropenyl-alpha, alpha-dimethyl benzyl isocyanate grafted polypropylene coupling reagent, and 0.1-1 part of antioxidant. The use amount of the conductive carbon black is lowered greatly; besides, the flame-retardant property, the physical and mechanical properties and the heat-resisting property of the wood powder/polypropylene composite material are improved, so that the wood powder/polypropylene composite material disclosed by the invention is superior to the existing flame-retardant anti-static wood powder/polypropylene composite material in each property.

Description

technical field [0001] The invention relates to a wood-plastic composite material and a preparation method thereof, in particular to a flame-retardant and antistatic wood powder / polypropylene wood-plastic composite material using silane-modified conductive carbon black as an antistatic agent and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of composite material formed by compounding various plant fiber materials with various thermoplastic plastics. As a new bag of environmentally friendly materials, wood-plastic materials have received a lot of appreciation, and the development of science and technology has made us put forward higher requirements for wood-plastic materials. However, both wood flour and thermoplastics are flammable, and will release a lot of smoke and toxic gases when burned, and because plastics are good electrical insulators, they are still poor conductors of electricity after they are compounded ...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/12C08L51/06C08K9/06C08K3/04C08K7/24B29C47/92B29C48/92
CPCB29C48/625B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 李丽萍白钢郭垂根
Owner NORTHEAST FORESTRY UNIVERSITY
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