A wood-plastic co-extrusion profile and its production method

Abstract

The invention discloses a plastic-wood coextrusion section material and a production method thereof, belongs to the technical field of composite materials. The coextrusion section material provided by the invention comprises a core body and a functional layer, wherein the functional layer covers outside a section material core layer; and the thickness of the functional layer is 0.5-1.5 mm, the surface hardness of the functional layer is 55-72 shore D, the thickness of the core body is 3-100 mm, and the width of the core body is 8.5-300 mm. Compared with the prior art, the plastic-wood coextrusion section material provided by the invention has the excellent surface abrasive resistance and scratch-resistant property and weather ability, the fadedness is greatly reduced as compared with the common plastic-wood coextrusion section material, and a mildew phenomenon does not appear in an application process.

Description

technical field [0001] The patent of the invention belongs to the technical field of composite materials, and in particular relates to a wood-plastic co-extrusion profile and a production method thereof. Background technique [0002] Wood-plastic composite materials use renewable biomass resources such as woody plants, grasses, vines and their processing residues as the main raw materials. Through high-tech means such as physics, chemistry and biology, a certain proportion of plastic-based Wood & Biofiber Plastic Composites, commonly known as WPC, is a reversible, recyclable, multi-purpose new material that is processed and formed by a special process. At present, there are several types of wood-plastic materials / products that are widely used, including structural, decorative, packaging and special types, including wires, sheets, plates, pipes, profiles / profiles, etc., and their scope of application It can cover almost all fields where logs, plastics, plastic steel, aluminu...

AI Technical Summary

Problems solved by technology

[0011] 2) The service life of wood-plastic products can be used for more than 30 years according to theoretical calculations. At present, the service life of wood-plastic products produced by various manufacturers is 10 to 15 years, and the aging resistance performance needs to be improved;

[0012] 3) In a humid environment, it is easy to mildew;

[0013] 4) It is easy to pulverize when soaked in water all the time;

[0014] 5) Compared with pure plastic products, the water absorption rate is relatively high;