Synthesis and application of the modified PAE-ST wet strength agent

Firstly the reacting polyaminoamide was used to react with a hydrophobic compound to form a polymer with hydrophobic side-chains, then to react and crosslink with epichlorohydrin to form cationic resin, finally to react with styrene by emulsion polymerisation to get the product. Influencing factors like materials proportion, reacting times and reacting temperature were discussed, the optimum condition was confirming. Comparing with conventional PAE wet strength agent, the product can improve wet strength and dry strength more significant.