Preparation and application of core-shell structured PANDB/PP conductive composites.

• Main Authors: Liou Yin-Lung, 柳印隆
• Other Authors: Chen Cheng-Ho
• Format: Others
• Language: zh-TW
• Published: 102
• Online Access: http://ndltd.ncl.edu.tw/handle/31190743583136654641

碩士 === 南台科技大學 === 化學工程與材枓工程系 === 101 === The preparation of PANDB/PP masterbatch conductive composites by an in-situ polymerization was studied in the thesis. The thesis was divided into two parts. The first part was to investigate the effect of reaction time and temperature on the conductivity of PANDB/PP masterbatch composites. The PP particle was cord with PANDB shell. The non-polar group of DBSA was adsorbed on the surface of the PP particle, while the polar group was complexe on the aniline monomer. We used ammonium peroxodisulfate as initiator to synthesize core-shell conductive PANDB/PP masterbatch composites. The results showed that the electrical conductivity of the PANDB/PP masterbatch composite increased as the reaction time. SEM images showed the morphology of pure PANDB was stacked columnar into a sheet. Moreover, for PANDB/PP composite, it showed that the stacked column PANDB was interwoven on the surface of PP particles. The TEM images showed the PANDB/PP was core-shell structures, which implied better conductive occured at room temperature by conductive PANDB/PP composite decreased as the temperature increased. UV-Vis curve showed the two absorption peaks at 330nm and 430nm were merged into a peak, under better doping. STA analysis showed the PANDB-coated PP particles did have a significant effect on thermal decomposition temperature of PP particles. In the second part, the conductive PANDB/PP masterbatch composite was blended with pure PP in a weight ratio of 1:1, and then added various amounts of compatiblizer, i.e. DBSA. The tensile tests showed the nature of pure PP was flexible, but became hard and brittle after adding PANDB. By adding compatibilizer, the compatibility between PANDB and PP can be improved. The PANDB/PP conductive composite can be used as anti-static, electrostatic discharge and electromagnetic interference (EMI) shielding materials.