Novel antibacterial wood plastic composite material and preparation method thereof

Abstract

The invention discloses a novel antibacterial wood plastic composite material and a preparation method of the novel antibacterial wood plastic composite material. The novel antibacterial wood plastic composite material is prepared from the following components in parts by weight: 100 parts of polyvinyl chloride resin, 40-150 parts of wood fiber, 1-100 parts of chitosan, 1-50 parts of other processing agents, and 1-50 parts of inorganic padding. The novel antibacterial wood plastic composite material comprises pure natural biopolymer chitosan with antibacterial effect, and is prepared by processing methods of fusing and melting, extruding and molding, cooling and sizing while the novel antibacterial wood plastic composite material has the advantages of strong wood texture, high strength-weight ratio and excellent mechanical property, and can be widely applied to packing materials, hospital facilities, public health appliances, indoor furniture and decoration, kids furniture, bathroom furniture, public places and the like.

Description

technical field [0001] The invention relates to a novel antibacterial wood-plastic composite material with antibacterial function, without adding any coupling agent, good mechanical properties and strong woody feeling and a preparation method thereof. Background technique [0002] Due to the poor compatibility between wood fiber and resin, wood-plastic composite materials have restricted their further development and application fields to a certain extent. In order to improve interfacial compatibility, most people focus on how to modify the interface through chemical modification or by adding artificially synthesized organic compound coupling agent, which affects the environmental performance of wood-plastic composites to a certain extent. . Today, with the continuous optimization of manufacturing technology, continuous upgrading of performance and further expansion of industrialization scale, the application range of wood-plastic composite materials has changed from the or...

AI Technical Summary

Problems solved by technology

CN101787167 B discloses a preparation method of an antibacterial wood-plastic composite material, which mainly realizes the function of resisting decaying bacteria by grafting high-energy radiation on quaternary ammonium salts, oxazolidinone and other artificially synthesized chemical antibacterial agents. Relatively complex, environmental friendliness needs to be improved

In US patent No.7446138B2, it was mentioned that in the mixture of chitin and chitosan, a chemically synthesized coupling agent was directly added as a new type of coupling agent to prepare wood-plastic composite materials, although its bending strength and modulus can be improved to a certain extent. It can be improved, but its efficiency is relatively low, and the dispersion effect needs to be further strengthened

Images