Study on the Influence of Attapulgite Powder and its Ultra-fine Powder on the Property of Coatings

Coating was prepared by application of attapulgite instead of part of titanium dioxide,the properties of such coating was measured by changing the amount of attapulgite,meanwhile the influence of the ultra-fine powder attapulgite on the coating property was also investigated.The investigation indicates that the attapulgite can replace titanium dioxide,thereby decreasing cost and improving some properties of coatings,but the amount of attapulgite must be controlled,good result can be obtained when such coating further mixed with suitable amount of CaCO3.Under same condition,compared coating-property made of ultra-fine powder attapulgite is better than that of usual attapulgite.