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《Chemical Industry and Engineering Progress》 2011-07
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Preparation and characterization of XG-g-P(AA-co-AM)/AC composite super absorbent resin

SU Xiuxia1,LI Yiyang1,LI Zhongjin1,LI Mingjie1,ZHAO Yan1,HAO Mingde2(1Key Laboratory of Auxiliaryies Chemistry & Technology for Chemical Industry,Ministry of Education,School of Chemistry and Chemical Engineering,Shaanxi University of Science & Technology,Xi'an 710021, Shaanxi,China;2Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,Shaanxi,China)  
The composite super absorbent resin,xanthan gum-g-poly(acrylic acid-co-cryl amide)/ attapulgite clay with good salt tolerance was synthesized through inverse suspension copolymerization.The influence factors of preparing composite super absorbent resin were studied.FT-IR,XRD and TGA were used on characterization of the super absorbent resin.The results showed that:Si-OH and AM/AA participated in graft polymerization reaction with xanthan gum.The preparation of super absorbent resin under optimum conditions has good properties of water absorption and salt resistance,with the highest water absorption up to 871.2 g/g and 0.9% NaCl solution absorption up to 119.8 g/g.Degradation tests showed that super absorbent resin could be degraded by microbes,and the degradation degree was up to 26.1% within 90 days.
【Fund】: 陕西省科技计划(2008K06-15);; “十一五”国家科学技术支撑计划(2006BAD09B04);; 陕西科技大学研究生创新基金项目
【CateGory Index】: TQ324.8
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