Composition material formed by natural cellulose and synthetic resin or polylactic acid

Abstract

The invention relates to a composition material formed by natural cellulose and synthetic resin or polylactic acid, and belongs to the technical field of synthetic materials. The composition material formed by the natural cellulose and the synthetic resin or polylactic acid comprises 10 to 90 weight percent of natural cellulose powder, 90 to 10 weight percent of resin and 0 to 5 weight percent of coupling agent, wherein the natural cellulose powder is straw, bagasse, sawdust or low value wood; the resin is any one of synthetic resin or polylactic acid; and the coupling agent is any one of silanes and titanate esters. The composition material has the advantages of low cost, high mechanical strength, low residue of harmful substances such as formaldehyde and melamine, and quickly natural degradation of cellulose in the composition under the action of microorganisms or physical and chemical factors.

Description

Technical field: [0001] The invention relates to a composite material formed of natural fiber and synthetic resin or polylactic acid, which belongs to the technical field of synthetic materials. Background technique: [0002] At present, a large number of polyester products such as melamine tableware, toys, and packaging materials are made of melamine resin or urea-formaldehyde resin or other resin materials formed by polymerization of melamine, urea, and formaldehyde. These materials have high temperature resistance and good mechanical strength. advantages, but there are also problems such as formaldehyde or melamine residues, large consumption of fossil raw materials, difficulty in natural degradation, and high cost; and natural cellulose with a large amount of straw, wood chips or low economic value in nature is a renewable resource. The cost is low, and the natural fiber can act with synthetic resin, polylactic acid and various coupling agents, and the obtained composite...

AI Technical Summary

Problems solved by technology

[0002] At present, a large number of polyester products such as melamine tableware, toys, and packaging materials are made of melamine resin or urea-formaldehyde resin or other resin materials formed by polymerization of melamine, urea, and formaldehyde. These materials have high temperature resistance and good mechanical strength. advantages, but there are also problems such as formaldehyde or melamine residues, large consumption of fossil raw materials, difficulty in natural degradation, and high cost; and natural cellulose with a large amount of straw, wood chips or low economic value in nature is a renewable resource. The cost is low, and the natural fiber can interact with synthetic resin, polylactic acid and various coupling agents, and the obtained composite material has better toughness, mechanical strength, formability and heat resistance