Waterproof plasterboard, and manufacturing method thereof

Abstract

The invention discloses a waterproof plasterboard. The waterproof plasterboard comprises, by weight, expanded vermiculite of 20.0 to 60.0 parts, expanded perlite of 12.0 to 30.0 parts, desulfurized gypsum powder of 100.0 to 300.0 parts, mixed fiber of 60.0 to 180.0 parts, organosiloxane of 40.0 to 60.0 parts, a stearate of 20.0 to 60.0 parts, a thickening agent of 10.0 to 30.0 parts, and water of2000.0 to 3000.0 parts. The waterproof plasterboard possesses following advantages: a hydrophobic film is formed on the plasterboard because of polymerization of silane, so that water resistance is achieved; adsorption of organosiloxane onto the stearate is adopted, on one hand, siloxane volatilization is prevented, and on the other hand, organosiloxane is uniformly dispersed in gypsum, the stearate is capable of promoting siloxane hydrolysis, the stearate possesses water resistance, and is capable of providing the finished product plasterboard with smoothness and flexibility. The waterproof plasterboard prepared using the above method possesses following advantages: the adding amount of a waterproof agent is low, cost is low, effect is excellent; and poly(p-phenylene benzobisoxazole) fiber is lower in density, and higher in specific strength and specific modulus than those of carbon fiber.

Description

technical field [0001] The invention relates to the technical field of gypsum boards, in particular to a waterproof gypsum board and a manufacturing method thereof. Background technique [0002] Gypsum is a monoclinic mineral, which is a hydrate whose main chemical composition is calcium sulfate (CaSO4). Gypsum is a widely used industrial material and building material. Food additives, sulfuric acid production, paper fillers and paint fillers, etc., the microporous structure and heating dehydration of gypsum and its products make it have excellent sound insulation, heat insulation and fire resistance; [0003] In the prior art: the patent application publication number CN 108129120 A discloses a waterproof gypsum board, including the following raw materials in proportions by weight: 2000-3000 parts of hemihydrate gypsum powder, 20-50 parts of active admixture, 30-60 parts of alkaline activator, 20-30 parts of coagulant, 100-200 parts of quicklime, 30-50 parts of water reduc...

AI Technical Summary

Problems solved by technology

[0003] In the prior art: the patent application publication number CN 108129120 A discloses a waterproof gypsum board, including the following raw materials in proportions by weight: 2000-3000 parts of hemihydrate gypsum powder, 20-50 parts of active admixture, 30-60 parts of alkaline activator, 20-30 parts of coagulant, 100-200 parts of quicklime, 30-50 parts of water reducing agent, 100-300 parts of superfine sand, 30-50 parts of borax, 30-50 parts of glass fiber 200-500 parts of stearic acid emulsion, 300-400 parts of polyethylene emulsion, 100-200 parts of paraffin wax emulsion, 50-70 parts of early strength agent, 50-60 parts of borate, 30-50 parts of crosslinking agent, 1,000 parts of paint and 2,000-3,000 parts of water, which can achieve waterproof effect by spraying paint on the surface of gypsum board, the waterproof effect is average, and cannot meet the needs of use