Redispersible polymer powders were prepared with different protective colloids by way of chemical process.

Cationic starches will be strongly absorbed by negatively charged cellulose fibres, fillers and sixes, etc, resulting in increases in paper strength, higher filler retention and better sizing effec…

With thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gel, surface activity, water retention and protective colloid and other characteristics.