SURFACTANT COMPOSITION FOR GYPSUM PLASTER BOARDS

摘要

The invention concerns a gypsum plaster composition comprising in combination with plaster and water a surfactant composition, including alkylsulphates of formula H (CH2)nOSO3<->M<+>, wherein: n is from 6 to 16 and the average number of carbon atoms in the alkylsulphate composition nm ranges between 10 and 11, and M is a monovalent cation. The invention also concerns a method for preparing the plaster composition and a gypsum plaster board obtainable from said composition. The invention further concerns a method for making gypsum plaster boards. The invention is useful for producing lightened gypsum plaster boards.