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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

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 powder / polypropylene wood-plastic composite material with graphite as a flame retardant and the preparation method thereof have obtained wood with less carbon black addition, good antistatic performance, good mechanical performance, good flame retardancy performance and good heat resistance performance. plastic composite

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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