Preparation method of bamboo fiber molding composite

Abstract

The invention provides a preparation method of a bamboo fiber molding composite. The method comprises the steps that after bamboo chips are ground into a loose state, the bamboo chips are soaked intoa nano calcium carbonate solution, a chelating agent is added, flash-explosion treatment is carried out, and modified bamboo fiber crude products are obtained; the residual solution is filtered to obtain bamboo basic structure crude products; the bamboo fiber crude products are soaked into a nano calcium carbonate solution to be ultrasonically treated, and modified bamboo fibers are obtained; theresidual solution is filtered to obtain bamboo basic structure crude products; the bamboo basic structure crude products obtained in the two times are combined, washing and airing are carried out, andbamboo basic structures are obtained; and the bamboo basic structures are soaked into water, a thickening agent is added, stirring and filtering are carried out, modified bamboo basic structures areobtained, the dried modified bamboo fibers and the modified bamboo basic structures are mixed and subjected to mold pressing, and the bamboo fiber molding composite is obtained. The bamboo fiber molding composite is good in uniformity and high in fiber yield, the bamboo basic structures can be effectively utilized, and efficient utilization of bamboo is achieved.

Description

technical field [0001] The invention belongs to the technical field of bamboo processing, and in particular relates to a preparation method of bamboo fiber molding composite material. Background technique [0002] my country is the country with the most abundant bamboo resources in the world. Bamboo fiber is a new type of resource, which is widely used in industries such as daily necessities, papermaking, textiles, and construction, especially the use of paper fibers to make molded composite materials. High strength, degradable and environmentally friendly. With the implementation of the "Plastic Ban", bamboo fiber molded products can replace plastics to make disposable environmental protection lunch boxes, water cups, packaging materials, etc. [0003] At present, the preparation methods of bamboo fiber mainly include physical mechanical method, chemical method, biological enzyme method, etc., although the physical mechanical method is simple in process operation, the proce...

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Problems solved by technology

[0003] At present, the preparation methods of bamboo fiber mainly include physical mechanical method, chemical method, biological enzyme method, etc., although the physical mechanical method is simple in process operation, the processing time is long, the bamboo fiber obtained is thick and hard, and the degumming effect is not good; the chemical method fiber processing time short, but it will cause great damage to certain properties of bamboo fiber, especially the existing processing technology is poor in environmental protection, which is not conducive to long-term development; biological enzyme method has the advantages of mild action conditions, but due to strong enzyme specificity and high production process requirements, Enzyme hydrolysis efficiency is low