Abstract: The calcium sulfate whisker, as a kind of inorganic powder material, is a high added value product of gypsum with the characteristics of excellent mechanics capability, environmental friendliness and low price.In this paper, the current study condition on surface modification of calcium sulfate whisker was introduced, and the applications of calcium sulfate whisker in the material fields such as polymer composites, catalyst, papermaking, asphalt, building cement, recycled aggregates concrete as well as friction material were also summarized.

Key words: calcium sulfate whisker;surface modification;material;application