Study on the Super-absorbent composite of Starch Grafted Acrylamide/Zeolite

Using N,N-methylene-bis-acrylamide as a crosslinker and potassium sulfate as an initiator,a super-absorbent composite of starch graft acrylamide/zeolite is prepared by polymerization and crosslinking reactions.Several major factors influencing these reactions,such as the ratio of amylum to monomer,the dosage of the initiatorand crosslinker,the amount of added zeolite and the neutralization degree were also researched.The water retention property of the composite material was explored.The structure of the composite material has been characterized by IR(Infrared Spectra).The results showed that zeolite is well dispersed in the composit material.The resin can absorb 365g/g pure water and 67g/g physiological solution(ω(NaCl)≈0.9%).