Zhang Wanxi, Zhang Yuefang, Sun Jiazhen. RADIATION INDUCED CROSSLINKING OF FLUOROPOLYIMIDE AND ITS CHARACTERIZATION OF CROSSLINKING DENSITY WITH XPS[J]. Journal of Radiation Research and Radiation Processing, 1987,5(3):6-9.
Zhang Wanxi, Zhang Yuefang, Sun Jiazhen. RADIATION INDUCED CROSSLINKING OF FLUOROPOLYIMIDE AND ITS CHARACTERIZATION OF CROSSLINKING DENSITY WITH XPS[J]. Journal of Radiation Research and Radiation Processing, 1987,5(3):6-9.DOI:
Fluoropolyimide (FPI) is a new type of polyimide with good resistance to high temperature and hydrolysis. However, until now, no research work on the radiation induced crosslinking of FPI has been done. We have found that it crosslinks only at high temperature and the mechanical properties at high temperature and glass transition temperature(Tg) of radiation crosslinked FPI are improved remarkably. In this paper, the characterization of crosslinking density of FPI has first been studied with XPS. The gelation dose of FPI obtained by XPS method is 50 Mrad.