Preparation method of whole straw foaming material

Abstract

The invention provides a preparation method of a whole straw foaming material. The preparation method comprises the following steps: firstly, pulping; secondly, preparing sugar; thirdly, blending materials: mixing all the components of a blending stock according to the formula of the blending stock and then stirring to obtain the blending stock, wherein the blending stock is prepared from the following components in percentage: 88 to 92 percent of neutralized material, 4.5 to 8 percent of VAE (Vinyl Acetate Ethylene) copolymer emulsion, 0.4 to 0.7 percent of polyvinyl alcohol, 0.8 to 1.2 percent of polyethylene wax, 0.6 to 1 percent of stearic acid and 0.7 to 1.2 percent of 4A zeolite molecular sieve; fourthly, forming and then obtaining the foaming material. According to the preparation method disclosed by the invention, agricultural straws are used as main raw materials and are abundant in resources and low in price; in addition, the preparation method of the whole straw foaming material has the advantages that no pollution is caused in the whole process of production and use; the product can be naturally degraded; besides, water vapor is used as a foaming agent, so that the use of chemical foaming agents is avoided. Compared with a plant fiber foaming buffer material, the whole straw foaming material has the advantages that the use of starch is eliminated, so that food is saved and production cost is reduced.

Description

technical field [0001] The invention relates to a method for making a whole-straw foaming material, which belongs to the fields of papermaking, pulping and foamed plastics. Background technique [0002] Foam plastics are widely used, and the output is increasing year by year. In 2014, my country's foam production was 2.022 million tons, an increase of 9.85% over 2013. In 2015, it was 2.45 million tons, showing an upward trend year-on-year. [0003] Problems with Styrofoam: [0004] First, foamed plastics use oil as raw material, and the resources are increasingly depleted and the price is high. The current market price is 850 yuan / cubic meter. [0005] Second, foam plastics use chemical foaming agents to destroy the ozone layer. Its finished products cannot be degraded naturally, causing secondary pollution, which is often called "white pollution". [0006] Scientists all over the world today are looking for a way to replace Styrofoam. At present, it is mainly explo...

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is that at present, the use of plant fibers to prepare foam packaging materials requires the addition of more starch, and the use of chemical foaming agents, resulting in high production costs and relatively large pollution in the production process

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