Study on Influence Factors of Grafting Calcium Lignosulfona te on Acrylamide and their Capabilities

According to the mechanism of graft copolymerization,the optimum reaction conditions were as follows:the dosage of acrylamide monomer was 0.88×10-3mol·L-1,the dosage of initiator was 4.2×10-3mol·L-1,reaction temperature was 50℃,and the reaction time was 2h,which were determined by orthogonal reaction with calcium lignosulfonate graft copolymerization of acrylamide.and evaluated a series of performance synthetic products.Experiments proved calcium lignosulphonate and acrylamide copolymers has good anti-calcium salt capacity,anti-temperature capacity of up to 140℃.