Method for veneering at surface of wood-plastic composite material

Abstract

The invention discloses a method for veneering at the surface of a wood-plastic composite material, relates to a veneer decorating method of the wood-plastic composite material, and aims at solving the problems of difficult veneering at the surface of the traditional polyolefin wood-plastic composite material, complicated process and high cost. The method comprises the following steps of: 1, preheating; 2, preparing a veneer sheet; and 3 cooling and finalizing the design to finish veneering. The veneering method disclosed by the invention is simple and convenient to operate, high in surface bonding strength, and economical in energy source. By adopting the method disclosed by the invention, auxiliary facilities such as coating equipment and glue preparation equipment are not needed; a special adhesive is not used; and special surface treatment is also not needed, so that the cost is reduced. The wood-plastic composite material adopts non-polar thermoplastic plastic as a substrate, and does not generate incompatibility with polar lignocellulosic materials; and the wood-plastic composite material and the polar lignocellulosic materials cannot be firmly bound together by common adhesive easily. According to the method, a surface decorative material and the wood-plastic composite material are firmly spliced by using wood-plastic matrix plastic and a coupling agent with bipolar groups. Therefore, the method can be used for carrying out veneering decoration on the surface of the wood-plastic composite material.

Description

technical field [0001] The invention relates to a veneer decoration method of wood-plastic composite materials. Background technique [0002] Wood-plastic composite materials are composite materials processed from wood fibers and thermoplastics. The raw materials can be waste wood, crop straw, bamboo, hemp chips and other biomass fibers, recycled polyethylene, polypropylene, polyvinyl chloride and other thermoplastics. Plastics provide a good way to recycle waste. At the same time, the prepared wood-plastic composite material has the advantages of water resistance, corrosion resistance, stable size and no formaldehyde release, and the production process and use process are environmentally friendly. It is widely used in outdoor flooring, building hanging panels, garden landscape architecture, furniture manufacturing, interior decoration, etc. [0003] However, wood-plastic composite materials also have the problems of lack of woodiness and weak appearance decoration. Simila...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of difficulty in veneering the surface of existing polyolefin wood-plastic composite m