The Reinforcement of Calcium Carbonate Filled Papers with Phosphorus-Containing Polymers

Anionic polyelectrolytes bearing phosphate or phosphonate groups were compared to poly(acrylic acid-co-acrylamide) as reinforcing polymers for paper filled with calcium carbonate. Cationic polyvinylamine, PVAm, was used to promote adsorption of the anionic polymers onto fiber and filler surfaces in the aqueous papermaking suspension. Both poly(acrylamide-co-vinyl phosphonate), PAMVP, and phosphate esters of poly(vinyl alcohol), PVAP, gave …