STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS

CHEN Jianyong; FENG Xinxing; XU Dan

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STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS

Research Article | 更新时间：2021-03-19

- STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS
- Acta Polymerica Sinica Issue 5, Pages: 649-653(2006)
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- Published：20 August 2006，
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CHEN Jianyong, FENG Xinxing, XU Dan. STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS. [J]. Acta Polymerica Sinica (5):649-653(2006)
DOI：

CHEN Jianyong, FENG Xinxing, XU Dan. STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS. [J]. Acta Polymerica Sinica (5):649-653(2006) DOI：

摘要

用溶胶凝胶法制备纳米TiO2改性再生蚕丝丝素蛋白膜.该丝素膜机械强度提高

在水中溶失率下降.UV、AFM、SEM测试的结果表明

丝素中纳米TiO2粒径约为80 nm

纳米粒子在丝素膜中分布均匀;XRD、FTIR测试结果表明

纳米TiO2的加入

可使改性丝素膜的结晶结构从SilkⅠ向SilkⅡ转化

其结晶度也随之提高;TGA测试表明改性丝素膜的热转变温度比纯丝素膜有所改变.

Abstract

With the sol-gel method

the regenerated SF(silk fibroin)／nano—TiO2 composite films were prepared．Comparod to the pure silk fibroin films

the mechanical strength of these regenerated SF／nano-TiO2 composite films were increased and the loss percentage of SF／nano-TiO2 composite films in aqueous solution were decreased．By using UV

AFM and SEM

these films were characterized．The experimental results reveal that the diameter of nano—TiO particles in films was about 80nm．The nano—TiO2 particles were well dispersed in the regenerated silk fibroin．It was found that the crystal structure of the composite films changed from typical Silk I to typical Silk Ⅱ.Furthermore

the crystallinity of the composite films was obviously improved．Through the TGA

it was demonstrated that the heat transition temperature of composite films was also changed．

关键词

蚕丝丝素蛋白纳米TiO2晶型

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