Structure and properties of chitosan containing polyacrylic acid hydrogel grafted SMS Nonwovens
Hydrogels donate moisture to dehydrated tissue and absorb some moisture and accepted in wound healing. Polypropylene (PP) SMS nonwovens were grafted polyacrylic acid (PAA) hydrogel technique contanining chitosan to enhance hydrophilicity and antibacterial activity. In the first stage, nonwovens were hydroxylated by treatment with aqueous potassium peroxydisulfate solution under a strong flow of nitrogen. In the second stage, the hydroxylated nonwovens were subjected to grafting of acrylic acid using cerric ammonium nitrate as an initiator. Subsequently, chitosan was grafted onto the modified NWs with N,N-Methylenebisacrylamide. The modified nonwovens were characterized by XPS spectroscopy and SEM, the results showed that acrylic acid was copolymerized and hydrogel grafted onto SMS nonwovens. Hydrogel grafted nonwovens exhibited enhanced wettability and water absorption ability. With introduce of chitosan further, the modified NWs exhibited effectively antibacterial activity against E.coli.
hydrogel surface wettability SMS nonwovens antibacterial activity
ZHUANG Xupin DENG Wenjian CHENG Bowen
Deptment of Nonwoven Materials, College of Textile, Tianjin Polytechnic University, Tianjin 300160, Tianjin Key Laboratory of Fiber modification and functional fiber, Tianjin Polytechnic University, T
国际会议
2009 Advanced Polymer Processing(Qingdao)Intl Forum(2009高分子材料先进制造业(青岛)国际论坛
青岛
英文
513-517
2009-08-19（万方平台首次上网日期，不代表论文的发表时间）