热塑性聚氨酯/蚕丝蛋白粉体共混膜的制备及性能  

Preparation and properties of TPU/Silk fibroin powder blend films

作　　者：慈美玉 刘杰[1] 张瑞 朱平[1] 董朝红[1] 隋淑英[1] CI Meiyu;LIU Jie;ZHANG Rui;ZHU Ping;DONG Zhaohong;SUI Shuying(College of Textile & Clothing/Institute of Functional Textiles and Advanced Materials/State Key Laboratory of Bio-Fibers and Eco-Textiles/Collaborative Innovation Center of Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, Shandong, China)

机构地区：[1]青岛大学纺织服装学院/青岛大学功能纺织品与先进材料研究院/青岛大学生物多糖纤维成形与生态纺织国家重点实验室/海洋生物质纤维材料及纺织品山东省协同创新中心

出　　处：《纺织高校基础科学学报》2019年第2期186-189,共4页Basic Sciences Journal of Textile Universities

基　　金：威海海马地毯集团有限公司委托课题“废羊毛纱回收利用”(20173702011731)

摘　　要：利用机械粉碎球磨的方法制备了微米级蚕丝蛋白(SF)粉体,并利用红外光谱(FT-IR)及扫描电镜SEM对粉体结构进行表征。将SF粉体与DMAc溶解的热塑性聚氨酯(TPU)溶液共混,制备了一系列不同质量比的TPU/SF共混膜,测试膜的强力及吸水性能。结果表明SF的加入大大提高了TPU膜的杨氏模量、拉伸强力及吸水性能,而断裂伸长率有所下降。Micron-sized silk fibroin (SF) powder was prepared by mechanical grinding and ball-milling. The structure of SF powder was characterized by FT-IR and SEM. After blend of SF powder and TPU solution dissolved by DMAC, a series of TPU/SF blend films with different blend ratio were prepared. The tensile strength and water absorption capacity of blend films were tested. The results show that the addition of SF powder greatly improves the Young modulus, tensile strength and water absorption capacity of TPU films, while the elongation at break decreases to some extent.

关 键 词：蚕丝蛋白粉体 氨纶级TPU 共混膜 机械性能 吸水性 

分 类 号：TQ340.6[化学工程—化纤工业]