Preparation method of high-strength waterproof plate

Abstract

The invention relates to a preparation method of a high-strength waterproof plate and belongs to the technical field of decorative materials. The preparation method comprises the following steps: immersing wheat straws and wheat leaves into hydrochloric acid; separating out components including plant fibers, cellulose and he like in the straws and the wheat leaves; and adding potassium permanganate and oxidizing hydroxyl in the plant fibers into carboxyl so as to enhance the waterproof performance of the waterproof plate. According to the preparation method provided by the invention, corn starch and modified plant fibers are mixed; an amylolytic enzyme is added so that polysaccharide, polysaccharose and the corn starch of the plant fibers are decomposed of glucose and other polysaccharosecomponents; then the glucose and the other polysaccharose components react with maleic anhydride under the environment of concentrated sulfuric acid to combine the hydroxyl of the plant fibers and thehydroxyl in the glucose to generate an ester group; meanwhile, the glucose is added so that the adsorption degree between the fibers is reinforced; the glucose and the plant fibers are carbonized anda carbonized layer is coated with silicon dioxide, so that the mechanical strength and the waterproof performance of the waterproof plate are improved; and the waterproof plate has a wide applicationprospect.

Description

technical field [0001] The invention relates to a preparation method of a high-strength waterproof board, which belongs to the technical field of decorative materials. Background technique [0002] Waterproof board is a kind of anti-seepage material made of polymer as the basic raw material, which can prevent liquid leakage and gas volatilization. It is widely used in construction, transportation, subway, tunnel and engineering construction. Waterproof board is also called geomembrane. It is customary to call the geomembrane >0.8mm thick as waterproof board, and the thickness <0.8mm is called geomembrane. It is a kind of anti-seepage material made of high molecular polymer as the basic raw material. Homogeneous flashing and composite flashing. [0003] The main function of the waterproof board is to prevent the leakage of liquid and the volatilization of gas. The function of the waterproof board in rock engineering is mainly to prevent seepage and isolation, but it a...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing a high-strength waterproof board in view of the poor impact resistance a