材料科学与工程学报2012，Vol.30Issue(5)：724-727,4.
乙醇对壳聚糖基骨修复支架形貌和性能的影响
Effect of Ethanol on the Morphology and Properties of Chitosan-based Bone Repair Scaffolds
摘要
Abstract
Ethanol was often used as a solvent in the preparation of chitosan materials.On the basis of our previous work,the effects of ethanol on the morphology and mechanical properties of chitosan-based porous scaffolds were studied.Compared with untreated normal scaffolds,the ethanol treated porous chitosan scaffolds had fully developed three-dimensional ordered structure,and their pore size distribution was relatively uniform.Through the mercury porosimetry,it was suggested that the pore size of the untreated chitosan scaffold,on average,was 143μm,and changed within 60~200μm;while those of the ethanol treated chitosan scaffolds were 46μm and within 10~100μm,respectively.Their mechanical properties were also significantly improved by the ethanol treatment.XRD further revealed that the ethanol treatment led to the shortening of the chitosan chains in a poor solvent and to the shrinkage of the cell of chitosan crystal,all of which enhanced the mechanical property of the chitosan scaffolds.关键词
壳聚糖/乙醇/形貌结构/力学性能Key words
chitosan/ethanol/morphology and Structure/mechanical property分类
化学化工引用本文复制引用
张其荣,王征科,胡巧玲..乙醇对壳聚糖基骨修复支架形貌和性能的影响[J].材料科学与工程学报,2012,30(5):724-727,4.基金项目
国家自然科学基金资助项目 （）
中国博士后基金资助项目 （）
国家重点基础发展研究计划资助项目（973计划） （）
