PREPARATION AND APPLICATION OF POLY(ACRYLAMIDE) GRAFTED CHITOSAN INVERSE LATEX

摘要

Chitosan and acrylamide monomer were graft copolymerized in inverse emulsion .It was shown that when the volume ratio of oil phase and water phase was 1:1, the weight ratio of chitosan and AM was 1:8, the reaction temperature was 50 ℃, the initiator concentration was 0.67mmol/L, the reaction time was 4h, the dosage of emulsification agent was 8 % of the weight of oil phase, the weight ratio of Span-80 and OP-10 was 6:4, and the shearing rate was 1100 r/min, stable inverse latex could be gained. A good strengthening effect had been obtained by applying the abovementioned latex in as the strengthening agent.