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Gypsum wallboard and method for preparing gypsum wallboard
Gypsum wallboard and method for preparing gypsum wallboard
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机译:石膏墙板及石膏墙板的制备方法
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摘要
An inorganic-organic composite comprises an inorganic phase, such as gypsum crystals, and a film forming organic phase. The film forming organic phase is selected from substituted starches having a degree of polymerization; degree of substitution and viscosity such that the substituted starches are insoluble in water during mixing but dissolve at a higher processing temperature during forming, setting or dryiing of the composite. Thus, excessive migration of the substitute starch is prevented and the composite is substantially strengthened.
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