There were three types of grinding aids with different absorbent membranes: oily membrane grinding aids,aquosity membrane grinding aids and oily-aquosity membrane grinding aids.

• 按吸附膜的不同,把助磨剂分为3种类型:油性吸附膜助磨剂、水性吸附膜助磨剂和油水复合吸附膜助磨剂。