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《Chinese Journal of Energetic Materials》 2009-04
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Dynamic Enzyme Degradation and Characterization of Bacterial Cellulose/RDX Composite

CHEN Yan1,DU Yan-fang1,LUO Qing-ping1,NIE Fu-de2,PEI Chong-hua1,LIU Chang-bo1(1.School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China;2.Institute of Chemical Materials,CAEP,Mianyang 621900,China)  
The factors affecting dynamic enzyme degradation of bacterial cellulose/RDX(BC/RDX) composite were investigated and the optimum conditions were obtained by orthogonal experiments.The pre-and post-degradation materials were characterized by SEM,FTIR and XRD.The results show that the degradation of the composite subsequently decreases with the content of the composite,the concentration of enzyme and temperature,but the influences of all the factors are not significant(FF0.05).For 1.00 g BC/RDX composite,the optimum conditions for dynamic enzyme degradation are 0.7% of enzyme degradation concentration at 40 ℃ and 5.0 of pH value for 25 h.The morphology and structure of BC in the composite are decomposed partly or completely by enzyme,but the degradation of the composite has no any influence on the property of RDX in the composite.
【Fund】: 中国工程物理研究院化工材料研究所院外合作基金
【CateGory Index】: TQ560.1
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