纳米CaCO3/柞蚕丝素复合膜的制备及结构表征  

Preparation and Structure Characterization of Nano-CaCO_3/Tussah Silk Fibroin Composite Membranes

作　　者：徐孝旭[1,2] 张宝砚[1] 

机构地区：[1]东北大学理学院,辽宁沈阳110004 [2]辽东学院化学系,辽宁丹东118000

出　　处：《高分子材料科学与工程》2008年第10期134-137,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(E0309(50673015))

摘　　要：制备了一种含有纳米CaCO3的新型柞蚕丝素蛋白膜,通过SEM、DSC、TG、XRD和IR研究了纳米CaCO3的加入对这种丝素蛋白膜性能的影响。SEM测试表明,纳米CaCO3粒子能均匀分散在丝素膜中不团聚;DSC测试表明,适量加入纳米CaCO3复合膜的Tm有所提高,但随着纳米CaCO3含量增加,Tm又有所降低;TG测试结果表明,随着纳米CaCO3加入量增加,复合膜的热稳定性得到提高;XRD测试结果表明,丝素结晶结构从silk I向silk II转化,结晶度得到提高。IR测试结果佐证了前面的推断。New tussah silk fibroin films with nano-CaCO3 were prepared. The composite films were characterized by SEM, DSC, TG, XRD and IR. The experiment shows that the nano-CaCO3 particle is dispersed in the regenerated silk fibroin. DSC reveals that the Tm of the composite films is inereased. TG shows that stability of the composite films ean be increased also. XRD shows the conformation of the composite films changes from typical silk Ⅰ to typical silk Ⅱ. The experiment of IR shows that these conclusions are right.

关 键 词：纳米碳酸钙 柞蚕丝素 制备 结构表征 

分 类 号：TB383[一般工业技术—材料科学与工程]