Flame-retardant and antistatic wood-plastic composite material and preparation method thereof

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 high fire hazard, discharge and high cost, reduce the hidden danger of fire safety, improve flame retardant and anti-static Static performance, the effect of reducing safety hazards

Active Publication Date: 2015-02-04
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problem of poor flame retardancy and high cost of existing antistatic wood-plastic composite materials, and provides a flame-retardant and antistatic wood-plastic composite material and a preparation method thereof
[0007] In view of the fact that wood-plastic composite materials tend to accumulate a large amount of static charge during use indoors or in public

Method used

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  • Flame-retardant and antistatic wood-plastic composite material and preparation method thereof

Examples

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specific Embodiment approach 1

[0020] Specific implementation mode 1: The flame-retardant and antistatic wood-plastic composite material in this embodiment consists of 20-70 parts by weight of wood fiber materials, 30-80 parts of thermoplastics, 1-3 parts of lubricant, and 2-15 parts of antistatic agent , 5-20 parts of flame retardant, 2-6 parts of coupling agent and 0-5 parts of inorganic filler; wherein the total amount of lignocellulosic materials and thermoplastics is 100 parts, and the antistatic agent is conductive carbon black, A mixture of one or more of nickel powder, copper powder, graphene oxide, and carbon nanotubes in any ratio; the flame retardant is expandable graphite or expandable graphite, ammonium polyphosphate, and microencapsulated red A mixture of one or more of phosphorus, nano aluminum hydroxide, nano magnesium hydroxide, nano organic montmorillonite, and nano zinc borate in any ratio.

specific Embodiment approach 2

[0021] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the lignocellulosic material is one of wood powder, bamboo powder, rice husk powder, straw powder, fruit shell powder, bagasse, hemp fiber or Several kinds of mixtures are composed in any ratio, the particle size is 40-160 mesh, and the water content is lower than 2%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the thermoplastic is one or more of polyethylene, polypropylene, recycled polyethylene, recycled polypropylene, and recycled polystyrene. Several mixtures in any ratio. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a flame-retardant and antistatic wood-plastic composite material and a preparation method thereof and relates to a wood-plastic composite material and a preparation method thereof. The invention aims at solving the problems of relatively poor flame retardance and relatively high cost of the existing antistatic wood-plastic composite material. The wood-plastic composite material is prepared from the following components in parts by weight: a lignocellulosic material, thermoplastic, a lubricant, an antistatic agent, a flame retardant, a coupling agent and an inorganic filler. The method comprises the following steps: 1) performing hot mixing on the lignocellulosic material, the thermoplastic and the lubricant to obtain a hot-mixed material; 2) putting the hot-mixed material into a cold mixing machine for cold mixing, and adding the weighed antistatic agent, the flame retardant, the coupling agent and the inorganic filler into the cold mixing machine for re-mixing when the temperature is lowered to 40-60 DEG C to obtain a premix; 3) putting the premix into a twin-screw extruder to perform melting, mixing and granulation; and 4) performing extrusion molding or thermoforming to prepare the flame-retardant and antistatic wood-plastic composite material. The flame-retardant and antistatic wood-plastic composite material is used in the fields of indoor buildings, decorations, decoration materials and the like.

Description

technical field [0001] The invention relates to a wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of environmentally friendly composite material prepared by processing a certain proportion of wood fiber material, thermoplastic polymer resin and various additives through melt extrusion, injection molding or hot pressing compounding. It has the dual advantages of both wood and plastic. It not only has the wood-like appearance of wood but also has the advantages of water resistance, corrosion resistance and insect resistance of thermoplastics. Moreover, its dimensional stability is better than that of wood, and its hardness and modulus are higher than that of wood. Thermoplastics have a flexible production process and can be reprocessed and recycled. They have outstanding environmental protection and unique decorative effects. At the same time, they can effectively alleviate the shorta...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/12C08L51/06C08K13/04C08K7/24C08K3/04C08K3/32C08K3/26C08K3/08C08K3/34C08K13/06C08K9/10C08K3/02B29B9/06B29C47/92B29C48/92
Inventor 宋永明王清文于富磊徐凤娇王海刚耿玉龙张涛
Owner NORTHEAST FORESTRY UNIVERSITY
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