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Flame retardant high-wood content wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite material and wood fiber material, which is applied in the field of wood-plastic composite material and its preparation, can solve the problems of high cost, low flame retardant efficiency, and easy-to-burn flame retardant addition, and achieve low cost and good The effect of mechanical properties and good synergistic flame retardant effect

Active Publication Date: 2012-04-11
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that the wood-plastic composite material with high wood content is easy to burn and the existing flame retardant treatment technology has a large amount of flame retardant added, low flame retardant efficiency, and high cost, and provides a flame retardant type Wood-plastic composite material with high wood content and preparation method thereof

Method used

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

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specific Embodiment approach 1

[0012]Specific Embodiment 1: In this embodiment, the flame-retardant high-wood content wood-plastic composite material consists of 5-25 parts by weight of wood fiber flame retardant, 50-70 parts of wood fiber material, 30-50 parts of Thermoplastics, 5-25 parts of flame retardant for plastics, 2-8 parts of coupling agent, 1-3 parts of lubricant, 0.1-3 parts of antioxidant, 1-5 parts of smoke suppressant and 0 ~5 parts of additives; among them, the flame retardants for wood fiber are amidinourea phosphate, flame retardant FRW, hydroxymethylated amidinourea phosphate, ammonium polyphosphate, ammonium pyrophosphate, ammonium monohydrogen phosphate, phosphoric acid Ammonium dihydrogen, ammonium sulfate, melamine or melamine pyrophosphate; the lignocellulosic material is one or a mixture of wood flour, rice husk powder, bamboo chips, straw powder, fruit shell powder, bagasse, and hemp fiber; Thermoplastics are polyethylene, polypropylene, polyethylene recycled materials or polypropy...

specific Embodiment approach 2

[0014] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the flame-retardant high-wood-content wood-plastic composite material consists of 5 parts of wood fiber flame retardant, 50 parts of wood fiber material, and 50 parts by weight. 1 part of thermoplastic, 5 parts of plastic flame retardant, 2 parts of coupling agent, 1 part of lubricant, 0.1 part of antioxidant and 1 part of smoke suppressant. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the flame-retardant high-wood-content wood-plastic composite material consists of 25 parts by weight of a wood fiber flame retardant, 70 parts of a wood fiber material, and 30 parts by weight. 25 parts of thermoplastic, 25 parts of plastic flame retardant, 8 parts of coupling agent, 3 parts of lubricant, 3 parts of antioxidant, 5 parts of smoke suppressant and 5 parts of additives. Others are the same as in the first embodiment.

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Abstract

A flame retardant high-wood content wood-plastic composite material and a preparation method thereof relate to a wood-plastic composite material and a preparation method thereof, wherein the problem of easy burning of the wood-plastic composite material with high wood content and the problems of high fire retardant addition amount, low anti-flaming efficiency and high cost of the existing flame retardant treatment technology are solved. The material is prepared from a fire retardant for wood fibers, a wood fiber material, thermoplastic plastics, a fire retardant for plastics, a coupling agent, a lubricant, an antioxidant, a smoke eliminating agent and auxiliaries. The method comprises the following steps of: weighing raw materials; preparing a flame retardant processing fluid; preparing aflame retardant wood fiber material; performing melting granulation on the thermoplastic plastics and the fire retardant for plastics to obtain flame retardant thermoplastic plastic base particles; mixing the flame wood fiber material with the flame retardant thermoplastic plastic base particles, the coupling agent, the lubricant, the antioxidant, the smoke eliminating agent and the auxiliaries, thereby obtaining a premix; performing melting compounding on the premix to obtain a melt material; and molding the melt material to obtain the flame retardant high-wood content wood-plastic compositematerial. The dosage of the fire retardant in the flame retardant high-wood content wood-plastic composite material is low; and the flame retardant high-wood content wood-plastic composite material is high in flame retardant efficiency and low in cost.

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 composite material made of wood or other wood fiber materials as filler or reinforcement, thermoplastic polymer as matrix, and made by melt extrusion or injection molding. Compared with traditional wood materials, wood-plastic composite materials have the advantages of water resistance, corrosion resistance, aging resistance, insect resistance, and good dimensional stability. Tackling plastic pollution. At present, it has been used in automotive interior decoration panels, architectural decoration, shipping pallets, outdoor tables and chairs, packaging materials, sleepers, furniture and military industries. It is a promising green environmental protection material. [0003] With the continuous improvement of wood-plastic composite material production technology and the rapid expans...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L23/12C08K3/32C08K3/30C08K5/3492C08K3/02C08K7/24
Inventor 宋永明王清文贾莹莹王海刚张志军
Owner NORTHEAST FORESTRY UNIVERSITY
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