Title :
Effect of poly(trifluoropropylmethylvinylsiloxane) additive on the surface properties of polydimethylsiloxane applied to outdoor insulation
Author :
Lee, Chang-Ryong ; Homma, Hiroya ; Izumi, Kunikazu
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Kanagawa, Japan
Abstract :
This paper describes the effect of blending of poly(trifluoropropylmethylvinylsiloxane) (PTFPMVS) with poly(dimethylsiloxane) (PDMS) on the surface properties of the blend, such as hydrophobicity. We have investigated the surface molecular mobility of the PDMS/PTFPMVS blends via dynamic contact angle measurements and adhesion tension relaxation. We found that a flexible side-chain segment in PTFPMVS which imparts high surface energy could be reoriented easily in water to decrease the interfacial tension of the polymer/water interface. This surface functionality seems to play a major role in the decrease of receding contact angle and the surface resistivity of PDMS/PTFPMVS blends during wet electrical aging
Keywords :
adhesion; ageing; contact angle; electrical resistivity; insulator testing; polymer blends; polymer insulators; surface energy; surface energy measurement; surface tension; adhesion tension relaxation; dynamic contact angle measurements; flexible side-chain segment; high surface energy; hydrophobicity; interfacial tension decrease; outdoor insulation; poly(trifluoropropylmethylvinylsiloxane) additive; polydimethylsiloxane; polymer/water interface; receding contact angle; surface functionality; surface molecular mobility; surface properties; surface resistivity; wet electrical aging; Additives; Chemicals; Dielectrics and electrical insulation; Goniometers; Milling machines; Plastic insulation; Pollution measurement; Polymers; Rubber; Spectroscopy;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973681
