石膏组合物与石膏制品及其制法;GYPSUM COMPOSITION, A GYPSUM PRODUCT AND THEIR PREPARATION METHOD

摘要

本创作提供了一种石膏组合物、石膏板和其制备方法以及脱氢抗坏血酸做为抗形变添加剂在石膏制品中的应用。该石膏板包括由该石膏组合物制备的凝固石膏，而该石膏组合物包括石膏和抗形变添加剂，该抗形变添加剂系选自于脱氢抗坏血酸、脱氢抗坏血酸盐、半脱氢抗坏血酸或其组合。由该石膏组合物制成的凝固石膏显示出更好的抗形变性能力，即使在高湿度条件下，本创作的石膏制品具有较强的稳定性并且也难以发生变形，得以满足客户需求。; while said composition comprises gypsum, and an anti-deformation additive, wherein the anti-deformation additive comprises at least one selected from a group consisting of dehydroascorbic acid, dehydroascorbate and semidehydroascorbic acid. The set gypsum prepared from the said composition shows better anti-sagging or deformation resisting property. The gypsum product of the present invention is hardly distorted and has stronger stability even in the condition of high humidity, thus improve the quality of the gypsum product to meet the demands of the customer.