hemihydrate gypsum

Preparation of the high-purity medical alpha hemihydrate gypsum and further controlling of the crystal granularity, the appearance by using hydrothermal production process in pressure.

目的制备高纯度的医用α半水石膏并能进一步控制好晶体的粒度、形貌。

The important factors of controlling the crystal granularity, morphology and strength of the alpha hemihydrate gypsum are the proportion of composition medium crystal agent and quantity, autoclave time.

结论复合转晶剂适当的比例和掺量、蒸压时间是控制α半水石膏晶体粒度、形貌及强度的关键因素。

A Discussion on the Concentration Assay for Hemihydrate Gypsum in Plaster of Paris Bandage-Viscose Form

粘胶型石膏绷带半水石膏含量测定方法的探讨

Multifunction& high-accuracy gypsum block is one of new types of wall materials made of hemihydrate gypsum and fly ash, and it has unique structure and outstanding performance.

以半水石膏、粉煤灰为主要原材料的高精度、多功能石膏砌块是一种构造独特、性能优良的新型墙体材料。

Adding crystal modifier in gypsum, a hemihydrate gypsum was prepared by autoclave technology under the optimum condition.

在此基础上，在二水石膏原料中加入转晶剂，采用蒸压法在最佳工艺下制备α型半水石膏。

According to the different preparing methods, it can change to α hemihydrate gypsum or β hemihydrate gypsum.

根据制备工艺的不同，可获得α型半水石膏或β型半水石膏。

A Research on the Properties and Microstructure of Hemihydrate Gypsum

半水石膏性能与微观结构的探讨

Choosing potassium sulfate as an activator to stimulate the activity of natural anhydrite, and modified its properties by adding Portland cement and hemihydrate gypsum respectively.

选取硫酸钾作为激发剂对天然硬石膏进行活性激发，并分别掺入硅酸盐水泥与半水石膏进行改性。