Wood plastic composite section bar and production technology thereof

Abstract

The invention discloses a wood plastic composite section bar and a production technology thereof. The wood plastic composite section bar comprises the following raw materials in parts by weight: 40-60 parts of PVC, 10-15 parts of wood powder, 20-30 parts of CACO3, 1-3 parts of a stabilizer, 1-2 parts of a foaming agent, 1-2 parts of a lubricating agent and 4-6 parts of processing additives. The wood plastic composite section bar is reasonable in formula design, has a coupling toughening function, is capable of promoting the mechanical properties of material, is beneficial to the promotion of rigidity and thermal deformation of products and is available for indoor and outdoor wood plastic products and products with higher requirement on thermal deformation; a toughening agent CPE is added, so that the toughness of the product is higher; the wood plastic composite section bar has high heat stability, weather fastness and anti-ultraviolet function; the section bar is high in compatibility with resin, high in dispersibility, and capable of increasing production rate and promoting the surface glossiness of products; the wood plastic composite section bar has anti-fogging and antistatic functions; the wood plastic composite section bar is suitable for production wood plastic skirting lines, door pocket lines, sill lines, ecological wood, hollow panels, floor boards, stair railings, ventilated windows, micro-foamed cabinet panels, wave panels, and other products.

Description

technical field [0001] The invention relates to the technical field of wood-plastic materials, in particular to a wood-plastic composite profile and a production process thereof. Background technique [0002] Wood-plastic composite materials have the dual characteristics of wood and plastic, and this material has the advantages of corrosion resistance, wear resistance, no warping, stable size, good mechanical properties, and similar appearance to wood. Replacing wood with wood-plastic composite materials can not only reduce the demand for wood and save forest resources, but also turn waste into treasure through comprehensive development and utilization of waste resources, which has high economic and social benefits. [0003] Although wood-plastic composites have many advantages, due to the compounding of resin and wood powder, on the one hand, its mechanical properties such as toughness, impact strength and bending strength will be reduced compared to unfilled plastics. On t...

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Problems solved by technology

[0003] Although wood-plastic composites have many advantages, due to the compounding of resin and wood powder, on the one hand, its mechanical properties such as toughness, impact strength and bending strength will be reduced compared to unfilled plastics. On the other hand, compared to natural wood, The density is about twice that of wood products, so it cannot be used as an ideal wood substitute, so its application fields are limited

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