PI/TiO_2纳米复合材料的制备及其热稳定性  

Preparation and Thermal Stability of PI/TiO_2 Nano-composites

作　　者：郭玉花[1] 王军[1] 李晓云[1] 张其土[1] 王宁[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《塑料》2005年第6期24-27,共4页Plastics

基　　金：民口配套材料项目资助(MKPT-04-237)

摘　　要：PI可与无机纳米微粒复合生成性能更加优良的复合膜材料。对以PI为基料、纳米TiO2微粒为添加物制成的PI/TiO2膜进行了研究,考察纳米粒子的用量及固化工艺对PI/TiO2膜热稳定性能的影响。实验结果表明,随着TiO2含量的增加,PAA/TiO2贮存时间变短,而固化后PI/TiO2膜的热稳定性能提高。采用阶梯升温固化,固化温度为310℃时,得到的PI/TiO2膜热稳定性能较好。PI may be compounded with many materials to manufacture compound film. PI/nano-TiO2 composites were used. The effects of adding TiO2 and solidification method on thermal stability of PI/TiO2 film were studied. The result showed that with the contents of TiO2 increasing, the reserved time of PAA/TiO2 was shortened, while the thermal stability of PI/TiO2 film was improved. In solidification process,when ascending temperature intermittently,and 310℃ was chosen as the highest temperature,the PI/TiO2 film achieved excellent thermal stability.

关 键 词：聚酰亚胺 纳米TIO2 复合材料 固化工艺 热稳定性 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]