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A kind of double-layer PE co-extruded wood-plastic board and preparation method thereof

A wood-plastic board, double-layer technology, applied in the field of double-layer PE co-extruded wood-plastic board and its preparation, can solve the problems of poor weather resistance and mechanical properties, instability, etc., to increase the use range and aging resistance. The effect of improving and strong market competitiveness

Active Publication Date: 2020-08-25
ANHUI SENTAI WPC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention effectively solves the problems of poor and unstable wood-plastic color, weather resistance and mechanical properties of recycled wood-plastic floors without increasing production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A double-layer PE co-extruded wood-plastic board, which includes an environmentally friendly base material composed of a first wood-plastic material and a weather-resistant surface layer composed of a second wood-plastic material. The thickness of the surface layer is one-sixth of the thickness of the environmental protection base material. In any case, the weather-resistant surface layer will cover the whole. Therefore, the surface layer has a two-layer structure, and the thickness of each layer is one-sixth of the thickness of the environmental protection base material, about 0.5mm , the first wood-plastic material is made of the first raw material including recycled wood-plastic board crushed material and wood and bamboo powder. Contains a terpolymer of acrylate, acrylonitrile and styrene, accounting for 1% by mass fraction of the first raw material. The second wood-plastic material is made of a second raw material comprising high-density polyethylene HDPE5502 and ba...

Embodiment 2

[0037] The difference from Example 1 is that the raw material of the weather-resistant surface layer is high-density polyethylene and wood flour in a weight ratio of 5:1, and the second raw material also contains 5% terpolymer, 5% oxidized polyethylene wax, and 14% filler, 3% coupling agent, 0.4% antioxidant, 3% UV-531, and 0.85% additive; the first raw material recycled wood-plastic material powder is twice the weight of wood powder, and the first raw material also contains Contains 3% terpolymer, 3% plasticizer, 4% lubricant and 1% gray pigment.

[0038] Beneficial effects of the present invention: 1) The mechanical properties of the product are superior to ordinary wood-plastic single extrusion products; 2) The core layer material has no color requirements, which increases the use range of waste materials; 3) The surface layer material adds a large amount of anti-UV and other anti-aging Light and heat stabilizing additives, the stability of product surface color, and weathe...

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Abstract

The invention discloses a double-layer PE co-extruded wood-plastic board, which belongs to the field of new materials, and comprises an environment-friendly base material composed of a first wood-plastic material and a weather-resistant surface layer composed of a second wood-plastic material, and the weather-resistant surface layer is complete. Wrapped on the environment-friendly base material; the first wood-plastic material is made of the first raw material containing recycled wood-plastic plate crushed material and wood bamboo powder, and the second wood-plastic material is made of new high Density polyethylene and wood bamboo powder are made from the second raw material; the second raw material also contains a weather-resistant stabilizer; at least one surface of the weather-resistant surface layer has pressed grooves, and the grooves The maximum depth is greater than the thickness of the weatherable skin. The product of the invention is environmentally friendly, has low production cost, has better surface color and texture, and has significantly improved weather resistance compared with similar products in the prior art.

Description

technical field [0001] The invention relates to the technical field of wood-plastic material production, in particular to a double-layer PE co-extruded wood-plastic board and a preparation method thereof. Background technique [0002] The main material of wood-plastic outdoor flooring is PE and wood powder or bamboo powder. After adding additives and mixing at high speed, it is granulated, and then the pellets are extruded by an extruder to form a material. This type of floor can be used in gardens and villas. Wait for the outdoor platform. [0003] It is a new type of environmentally friendly high-tech material that has the properties and characteristics of wood and plastic and can replace wood and plastic. Its English abbreviation of Wood Plastic Composites is WPC. Wood-plastic flooring has the same processing characteristics as wood. It can be sawed, drilled, and nailed with ordinary tools. It is very convenient and can be used like ordinary wood. At the same time, it h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/32B32B27/20B32B9/00B32B9/04B32B21/02B32B21/08B32B3/30B32B33/00B32B27/06C08L23/06C08L97/02C08L23/30C08L25/12B29D7/01
CPCB29D7/01B32B3/30B32B5/16B32B27/06B32B27/20B32B27/32B32B33/00B32B2250/02B32B2264/065B32B2264/067B32B2264/12B32B2307/558B32B2307/714B32B2419/04C08L23/06C08L2205/035C08L2205/16C08L2207/062C08L97/02C08L23/30C08L25/12
Inventor 黄东辉唐道远张志勇
Owner ANHUI SENTAI WPC GRP CO LTD
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