紫外荧光蚕丝的添食育蚕法制备及结构性能研究  

Ultraviolet long wave fluorescent silks prepared by directly feeding silkworm

作　　者：郑小婷 赵梦露 张慧慧[1,2] 邵惠丽[2] 胡学超[2] 张耀鹏[2] Zheng Xiaoting;Zhao Menglu;Zhang Huihui;Shao Huili;Hu Xuechao;Zhang Yaopeng(Key Laboratory of High Performance Fibers&Products,Ministry of Education,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering, Donghua University,Shanghai 201620,China)

机构地区：[1]高性能纤维及制品教育部重点实验室,东华大学材料科学与工程学院,上海201620 [2]纤维材料改性国家重点实验室,东华大学材料科学与工程学院,上海201620

出　　处：《合成技术及应用》2018年第1期1-4,10,共5页Synthetic Technology & Application

基　　金：自然科学基金(21674018);上海市曙光人才计划(15SG30);中央高校基本科研业务费专项资金

摘　　要：本文以蚕腺体为生物反应器,通过喂食法将稀土紫外长波长荧光粉(BAM)引入蚕丝。利用扫描电子显微镜、荧光显微镜、红外光谱仪、广角X射线衍射及材料试验机等对纤维的形貌、结构及性能进行了表征。结果表明,BAM进入了蚕丝,纤维在紫外光激发下发蓝色荧光;BAM的导入影响了蚕丝的表面形貌,限制了丝素蛋白的结晶,降低了蚕丝的力学性能。In this paper,silkworm gland was used as a bioreactor to introduce rare earth ultraviolet long wave fluorescent powder(BAM)into silk,which was produced by silkworm fed with artificial diet.Scanning electron microscope images of degummed silk showed the aggregation of the BAM particles on the silk surface.The fluorescent property was proved from fluorescence microscopy images obtained in an excitation range from 300 nm to 385 nm.Fourier transform infrared spectroscopy provided the evidence that the secondary conformation transition of silk fibroin from random coil orα-helix toβ-sheet was restricted by BAM.Wide-angle X-ray scattering(WAXD)result showed a lower degree of crystallinity of BAM modified silks than the control group.In addition,BAM deteriorated the mechanical properties of silks.

关 键 词：腺体 稀土紫外长波长荧光粉 荧光纤维 喂食法 蚕丝 

分 类 号：S881.3[农业科学—特种经济动物饲养]