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US08940091B2 Surfactant-coated hemihydrate gypsum and production method thereof 有权
表面活性剂包覆半水石膏及其制备方法

Surfactant-coated hemihydrate gypsum and production method thereof
摘要：
Surfactant-coated hemihydrate gypsum which is coated with 0.01 to 1 part by weight of a surfactant based on 100 parts by weight of hemihydrate gypsum, wherein the residual rate of the surfactant when the surfactant-coated hemihydrate gypsum is heated up to 300° C. is not less than 40 wt % of the amount of the surfactant before heating.
摘要（中）：

表面活性剂包覆的半水石膏，其基于100重量份的半水石膏涂覆有0.01至1重量份的表面活性剂，其中当将表面活性剂包被的半水石膏加热到300℃时，表面活性剂的残留率。 不低于加热前的表面活性剂的量的40重量％。

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