Environmental-protection rice husk and straw board production method

Abstract

The invention discloses an environmental-protection rice husk and straw board production method. The production method comprises the preparation steps of: mixing of straw fragments and rice husks-surface treatment-treatment through physical and chemical combination methods-uniform glue mixing-pavement-prepressing-hot pressing molding-fixed length edge cutting-curing-drying-trimming and surface treatment-products; in raw materials, the mass percentage ratio of the use levels of the straws and the rice husks is (1-3): 1; in the surface treatment step, chemical raw materials containing silicon-oxygen chemical bond structures similar to wax structures on the surfaces of the straws are added; few nanomaterials pitting the wax surfaces under the temperature condition of above 90 DEG C are added; adhesives capable of forming hydrogen bonds or chemical bonds with polyhydroxyl structures are added; and finally, the uniform mixing is performed by a physical method for surface treatment. A board prepared by the method is high in strength; no harmful gas is discharged; the board is excellent in crush resistance, water resistance and environmental protection property; and the strength and the yield of the board are improved.

Description

technical field [0001] The invention relates to a method for preparing a straw fiber board, in particular to a method for producing a green and environment-friendly rice husk and straw board. It belongs to the technical field of building components and decoration. Background technique [0002] my country is a big grain producer and also a big producer of straw. It can produce more than 100 million tons of straw every year, accounting for about 20% to 30% of the total straw in the world. Among them, the straw of rice, wheat, soybean, corn, potato and other food crops is about 580 million tons, accounting for 89% of the total straw; peanut, rapeseed, sesame, sunflower and other oil crop straw accounted for 8% of the total, cotton and sugarcane straw accounted for 3% of the total, increasing the amount of agricultural waste such as straw The research and development of comprehensive utilization of new technologies, the scientific and efficient use of straw resources, and the pro...

AI Technical Summary

Problems solved by technology

The method is to crush rice straw into organic fiber powder, whose fibers are short, which affects the strength of the whole board. In addition, the bonding force between fiber powder and other materials is limited, which affects the strength and toughness of the board.

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