纳米TiO_2改性壳聚糖膜的制备工艺优化及性能研究

Study on the Properties and Optimal Preparing Technology of Nano-TiO_2 Modified Chitosan Films

设计了正交实验法并采用溶胶-凝胶法制备了壳聚糖/纳米TiO2复合膜,优化了制备工艺参数,并采用热重分析(TGA),傅立叶红外分析(FT-IR)进行表征。热重分析(TGA)表明,壳聚糖复合膜比纯壳聚糖膜具有更好的热稳定性。傅立叶红外分析(FT-IR)表明壳聚糖复合膜中存在Ti-O键。

In the paper, the chitosaJnano-TiO2 composite films were synthesized using sol-gel processing. Though orthogonal experiments, experimental methods were optimized. The structures of the pure and composite films were characterized by TGA, FT-IR. TGA demonstrated that the composite film exhibits better thermal stability than pure film. IR spectra indicated Ti-O bond was formed in the hybrid film.