【作者】 侯建梅； 张溪文； 韩高荣；

【Author】 HOU Jian-mei, ZHANG Xi-wen,HAN Gao-rong (Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China)

【机构】 浙江大学材料科学与工程系；

【摘要】 采用静电纺丝法制备了聚酰亚胺/二氧化钛(PI/TiO2)亚微米纤维膜材料。通过差热-热重分析确立了后续热处理,通过红外分析证实了聚酰亚胺的形成。XRD研究表明,TiO2含量变化对样品结构有较大影响。光催化研究表明,PI/TiO2具有高达90%的罗丹明B降解能力,TiO2含量越高,降解速率越快,降解时间延长,降解速率逐渐降低。更多还原

【Abstract】 PI/TiO₂ composite nanofibers materials were prepared by electrospinning. The thermal gravimetric analysis-differential thermal analysis （TG-DTA） measurements determine the heat-treatment history. The IR measurements confirms the formation of polyimide. X-ray diffraction spectra verify a large influence of TiO₂ content on crystalline structures. Photocataltic measurements show that PI/TiO₂ have degradation ability of Rhdame B as high as 90 %, and the degradation rate increases with TiO₂ content and decreases with the degradation time.更多还原