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High-temperature coextrusion wood-plastic profile

A wood-plastic profile and co-extrusion technology, which is applied in the field of wood-plastic profile co-extrusion and co-extrusion of wood-plastic profile under high temperature conditions, can solve the problems of wood-plastic profile processing difficulty, poor creep resistance, low strength, etc. , to achieve the effects of improving mechanical properties and creep resistance, improving loss resistance, and reducing production costs

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

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-temperature co-extruded wood-plastic profile to solve the problems of low strength, poor creep resistance, engineering plastic-based wood-plastic profile processing and high cost of the existing wood-plastic composite material

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0023] Embodiment 1: The high-temperature co-extruded wood-plastic profile in this embodiment is composed of multi-layer wood-plastic profiles, at least one layer of which is engineering plastic or engineering plastic alloy-based wood-plastic composite material, and the other layers are general-purpose plastic-based wood-plastic composite materials. Material.

specific Embodiment approach 2

[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the engineering plastic or engineering plastic alloy-based wood-plastic composite material is made of modified plant material, engineering plastic or engineering plastic alloy, coupling agent or interface compatible It consists of agent, lubricant, heat stabilizer and mineral filler, and the modified plant material is the plant material modified by modifier. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the modified plant material is 10-100 parts by weight, engineering plastics or engineering plastic alloys are 20-100 parts, and the coupling agent or interface is compatible 0-20 parts of lubricant, 0-15 parts of lubricant, 0-15 parts of thermal stabilizer and 0-10 parts of mineral filler. Other steps and parameters are the same as those in the first embodiment.

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Abstract

The invention discloses a high-temperature coextrusion wood-plastic profile, belongs to the technical field of wood-plastic profile coextrusion, particularly relates to the field of coextrusion of wood-plastic profiles under a high-temperature condition, and aims at solving the problems that the existing wood-plastic composite material is relatively low in strength and poor in creep resistance and an engineering plastic or engineering plastic alloy-based wood-plastic profile is difficult to process and high in cost. The high-temperature coextrusion wood-plastic profile is formed by multiple layers of wood-plastic profiles, wherein at least one layer of wood-plastic profile is an engineering plastic or engineering plastic alloy-based wood-plastic composite material, and the other layers of wood-plastic profiles are universal plastic-based wood-plastic composite materials. A plant material is modified by using a modifier, so that coextrusion of the wood-plastic profiles under the high-temperature condition is achieved. The wood-plastic profile is applied to the field of the high-temperature coextrusion wood-plastic profiles.

Description

technical field [0001] The invention belongs to the technical field of co-extrusion of wood-plastic profiles, in particular to the field of co-extrusion of wood-plastic profiles under high temperature conditions. Background technique [0002] Wood-plastic composite materials refer to green and environmentally friendly materials made of plant fiber powder and thermoplastics (including recycled plastics) through melting and mixing. It has the performance advantages of both lignocellulosic materials and polymer materials, that is, good dimensional stability, good water resistance, corrosion resistance, etc., so it is widely used as a substitute for solid wood materials or pure plastics in construction products, automobiles, etc. , gardens and outdoor facilities, etc., are developing rapidly. However, due to the low thermal degradation temperature of plant fibers, the processing temperature of wood-plastic composites is limited. At present, the matrix materials of wood-plastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B21/04B32B27/18B32B27/06C08L97/02C08L77/00C08L23/06C08K3/26C08K5/54C08K5/57
CPCB32B21/042B32B27/06B32B27/18B32B2307/3065B32B2307/714C08L97/02C08L2205/025C08L2205/03C08L77/00C08K2003/265C08K5/54C08K5/57C08L23/06
Inventor 王海刚张京发王清文刘天
Owner NORTHEAST FORESTRY UNIVERSITY
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