Preparation and Thermal Degradation of White Fluorinated Polyimide/TiO2 Composite Films with Strong Shielding Performance. Issue 2 (22nd January 2019)

• Record Type: Journal Article
• Authors: Li, Linshuang; Xu, Yong; Che, Jianfei; Xiaohong, Liu; Zhao, Wei; Ye, Zhifeng
• Is Part Of: Polymer-plastics technology and materials. Volume 58:Issue 2(2019)
• Page Start: 172
• Page End: 181
• Publication Date: 2019-01-22
• Subjects: Insulting property -- optical transparency -- shielding performance -- thermal degradation; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/03602559.2018.1466173
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: A series of white fluorinated polyimide/TiO2 composite films were prepared by a solution mixing method. They showed high tensile strength beyond 95.1MPa and excellent insulting property with surface and volume resistances exceeding 1.9 × 10 11 Ω and 2.3 × 10 12 Ω cm, respectively, coupled with water absorptions below 1.1%, water contact angles up to 95.9 and whiteness beyond 58.5. It was found that their optical transparency decreased dramatically with the increasing doping of TiO2 . The thermal degradation of pure fluorinated polyimide (FPI) and representative polyimide/TiO2 composite film with 5 wt% of TiO2 (PI/TiO2 -5 wt%) was also studied. GRAPHICAL ABSTRACT: GRAPHICAL ABSTRACT