PEG/SiO_2-TiO_2杂化纤维的制备与表征  

Preparation and Characterization of PEG/SiO_2-TiO_2 Hybrid Fibers

作　　者：马海红[1] 周浩[1] 贺力[1] 于维[1] 刘发国[1] 陶俊[1] 

机构地区：[1]合肥工业大学化工学院,合肥230009

出　　处：《材料导报》2010年第22期102-104,共3页Materials Reports

基　　金：合肥工业大学校基金资助项目(2009HGXJ0058);合肥工业大学大学生创新性实验计划项目(2009CXSY120);合肥工业大学校博士专项科研资助基金(GDBJ2009-050)

摘　　要：以正硅酸乙酯(TEOS)和钛酸四丁酯(TBT)为无机前驱体,采用溶胶-凝胶法制备了PEG/SiO2-TiO2杂化溶胶,通过提拉法制得杂化纤维,并对其进行了简单表征。结果表明,随钛硅物质的量比的增加或有机相质量的增加,溶胶的可纺性变好;有机相与无机相之间通过化学键连接;纤维直径为40μm左右;TiO2的引入增强了其抗紫外性,杂化纤维的耐热性优于纯PEG。By sol-gel method, PEG/SiO2-TiO2 hybrid sols are prepared with tetraethoxylsilane and tetrabutyl titanate as inorganic precursor. PEG/SiO2-TiO2 hybrid fibers are prepared by drawing from the hybrid sol and charac- terized by simple testing methods. The spinnability of the hybrid sol is studied. Structure, micro-morphology and property of the fibers are studied by FT-IR, optical microscope,UV-Vis and TG. The results indicate that the spinna- bility of the hybrid sols becomes better with increase of the molar ratio of silica and titania or the weight of PEG in the organic phase; PEG is linked with SiO2-TiO2 network by chemical bonds; the diameter of the fiber is 40μm, its UV shielding properties are greatly improved with titania filled in the hybrid fibers, it possesses better heat resistance than pure PEG.

关 键 词：溶胶-凝胶法 有机-无机杂化 PEG SIO2-TIO2 杂化纤维 

分 类 号：TQ426[化学工程]