2017年
Adhesive-free adhesion between polytetrafluoroethylene (PTFE) and isobutylene-isoprene rubber (IIR): Via heat-assisted plasma treatment
RSC Advances
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- 巻
- 7
- 号
- 11
- 開始ページ
- 6432
- 終了ページ
- 6438
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1039/c6ra27642c
A polytetrafluoroethylene (PTFE) surface was modified using atmospheric pressure plasma treatment under heating (heat-assisted plasma treatment) to promote its direct adhesion to isobutylene-isoprene rubber (IIR) without any adhesives. Plasma-treated PTFE and unvulcanised IIR were thermally compressed and their adhesion strength was evaluated via a T-peel test. Heat-assisted plasma treatments conducted above 250 °C drastically increased the adhesion strength over 2.0 N mm-1 before IIR failure. The plasma-treated PTFE surface was evaluated using X-ray photoelectron spectroscopy, nanoindentation and scanning electron microscopy. The results of these analyses indicated that the adhesion strength drastically increased because heat-assisted plasma treatment promoted the formation of carbon-carbon crosslinks and/or etching of a weak boundary layer (WBL) on the PTFE surface. This led to the recovery of the WBL in PTFE, which resulted in the prevention of PTFE inter-layer peeling in the WBL. In addition, the estimated lifetime of the surface modification surprisingly exceeded one year.
- リンク情報
- ID情報
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- DOI : 10.1039/c6ra27642c
- eISSN : 2046-2069
- SCOPUS ID : 85010660510