Fabrication and Characterization of TiO2/Poly(dimethyl siloxane) Composite Fibers with Thermal and Mechanical Stability

被引：62
作者：
Kim, Young Bum [1 ,2 ]
Cho, Donghwan [3 ]
Park, Won Ho [1 ,2 ]
机构：
[1] Chungnam Natl Univ, Dept Adv Organ Mat & Text Syst Engn, Taejon 305764, South Korea
[2] Chungnam Natl Univ, FTIT BK21, Taejon 305764, South Korea
[3] Kumoh Natl Inst Technol, Dept Polymer Sci & Engn, Kumi 730701, Kyungbuk, South Korea
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2010年 / 116卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
titania (TiO2); poly(dimethly siloxane) (PDMS); electrospinning; composite fiber; mechanical stability; photocatalyst; ELECTROSPUN TIO2 NANOFIBERS; PHOTOCATALYTIC PROPERTIES; TITANIA NANOFIBERS; SOLAR-CELLS;
D O I：
10.1002/app.31480
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The mechanical stability of titania (TiO2) nanofibers was improved by fabricating TiO2/poly(dimethyl siloxane) (PDMS) composite fibers using a combination of hybrid electrospinning and sol-gel methods, followed by heat treatment at 250 degrees C for 3 h. The compositions (90/10, 80/20, and 70/30, w/w) of the TiO2/PDMS composite fibers were varied by adjusting the flow rate of the PDMS sol with the flow rate of TiO2 Sol fixed. There was no significant change in morphology and average diameter of the as-spun TiO2/PDMS fibers after heat treatment. Both the tensile strength and modulus of the TiO2/PDMS composite fibers increased gradually with increasing PDMS Content LIP to 30 wt%. In addition, from the photo-degradation reaction of methylene blue, the photocatalytic activity of TiO2/PDMS composite fibers was strongly dependent on the TiO2 content (%) in the composite fibers. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116:449-4-54,2010
引用
收藏
页码：449 / 454
页数：6
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