Preparation method of moistureproof plasterboard
A gypsum board and a technology for preparation steps, which are applied in the field of preparation of moisture-proof gypsum board, can solve the problems of poor moisture resistance of gypsum, easy cracking of gypsum board, easy occurrence of moisture, etc., and achieve low water absorption, good thermal shock stability, and chemical corrosion resistance. good effect
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[0037] Preparation of modified wollastonite:
[0038] (1) Mix wollastonite and distilled water at a mass ratio of 1:7, stir for 25 minutes to obtain a wollastonite suspension, and mix the wollastonite suspension and 20% hydrochloric acid at a mass ratio of 5:3 After mixing, put it into a reaction kettle, and stir and react for 50 minutes at a temperature of 50°C to obtain a mixed solution;
[0039] (2) After mixing the above mixed liquid and sunflower oil in a mass ratio of 3:2, the fermentation substrate is obtained, and the fermentation substrate is put into a fermenter, and river bottom with 6% of the mass of the fermentation substrate is added to the fermenter Sludge and distilled water with 4% of the mass of the fermentation substrate are sealed and fermented for 1 week at a temperature of 20°C, and the material is discharged to obtain the modified wollastonite;
[0040] Obtaining mountain palm fiber:
[0041] Take the mountain palm and put it into the air explosion tan...
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