Preparation and Properties of Polyimide/Clay and Polyimide/Titania Nanocomposite Materials

• Main Authors: Yen-Ling Chuang, 莊燕鈴
• Other Authors: Jui-Ming Yeh
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/90298028628155407390

碩士 === 中原大學 === 化學研究所 === 91 === Abstract This essay is divided into two parts。 In the first part，a series of polyimide/clay nancomposite materials consist of electroctive polyimide and clay were successfully prepared。 Aniline trimer，4,4-oxydianiline (ODA) and 4,4-oxydiphthalic anhydride (OPDA) were employed to synthesize polyimide。 The polyimide/clay nancomposite materials were prepared by effectively dispersing the inorganic nanolayers of MMT clay in to the organic Polyimide matrix via an chemical imidization up to 300℃polymerization。 The as-synthesized polyimide/clay nanocomposite materials were characterized by FTIR、XRD and TEM。 The incorporation of MMT clay in polyimide matrix show better thermal properties、gas barrier properties and ionic conductivity。 The second part is the preparation and properties of organic/inorganic compound of polyimide/TiO2 nanocomposite materials。 TiO2 was introducedd to polyimide matrix by a chelating ligand which was different from traditional sol-gel process。 In this study，we also found the thermal and mechanic properties would will rise by increasing the content of inorganic oxide TiO2 through TGA，DMA and tensile test。 The permeability properties of H2O，O2 and N2 were obviously reduced as TiO2 content increased。