Abstract:

Chitosan, Acrylamide,Maleic acid as raw materials,we synthesized a kind of graft copolymer about chitosan . It is characterized through Infrared spectrum (IR) and TG .Then the solution system of graft copolymer is coated on the PP non-woven fabric.We characterized the performance of coated fabric by tensile property test、combile fastness and DSC subsequently .The adsorption and desorption capacity of Pb2 + with the coated fabric were studied in the following tests.The results showed that: Acrylamide and Maleic acid are successfully grafted onto the chitosan and the molecular structure of chitosan has changed.The coated fabric has good combile fastness ,the tensile property improved evidently;The adsorption capacity for Pb2 + of the coated fabric is higher than the coated fabric of chitosan about 28%；In the desorption test,the desorption rates for Pb2 + are 93.4% and 65.5% with HNO3 and HCL after 3 times of desorption test.