Micro-foamed high-strength plastic-wood composite material plate and preparation method thereof

Abstract

The invention relates to a micro-foamed high-strength plastic-wood material plate and a preparation method thereof. The preparation method comprises the following steps: mechanically evenly mixing polyvinyl chloride plastic granules and tribasic lead sulfate, adding wood powder, wollastonite powder, accelerator, azobisformamide, composite auxiliary foaming agent, zinc oxide, dibutyl phthalate and acrylic acid, heating while stirring, cooling and taking out; granulating the mixture by extrusion by using an extruding machine; and after finishing the granulation, carrying out extrusion molding on the granules by using the extruding machine. The invention has the advantages of high production convenience, low production cost, low density, lower plastic and wood consumption, environment friendliness, strong wood sensation, aging resistance, discoloring resistance, no buckling deformation and strong modificability, is convenient to mount and maintain, and can be recycled. The invention can be widely used in office buildings, families and many other occasions, can be made into door plates, photo frames, picture frames, skirting plates, suspended pinch plates, partitions, roofs and other products, and can also be used as suspended beams, pergolas, outdoor veranda plates and the like.

Description

technical field [0001] The invention relates to a plastic-wood composite material, in particular to a micro-foamed high-strength plastic-wood composite material plate and a preparation method thereof. Background technique [0002] People have an affinity for wood, and home decoration is inseparable from wood. But wood itself also has disadvantages, such as shrinkage and cracking, deformation when exposed to water, mildew when exposed to moisture, and easy burning when exposed to fire. If a wooden door is made of plywood, formaldehyde will also pollute the room. It is very necessary to invent a new type of board to replace wood. Among them, wood powder, agricultural straw powder and other plant fibers and plastics are used as the main raw materials, processed by advanced technology, and the plastic-wood composite material that can be recycled and reused is one of them. In foreign countries, after years of research, development and industrial application, wood-plastic com...

AI Technical Summary

Problems solved by technology

However, due to the use of a large amount of wood powder and other fillers in PVC wood-plastic composite materials, its ductility and impact resistance are reduced, the material is brittle, and its density is nearly twice that of traditional wood products, which limits its wide use.