Adhesive-free adhesion between polytetrafluoroethylene (PTFE) and isobutylene-isoprene rubber (IIR): Via heat-assisted plasma treatment
| Autor: | Asahiro Nagatani, Masafumi Shibahara, Y. Yamamura, Kento Ishihara, Yuji Ohkubo, Haruka Sato, Koji Honda, Katsuyoshi Endo |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Isobutylene Materials science Polytetrafluoroethylene General Chemical Engineering Plasma treatment 02 engineering and technology General Chemistry Adhesion 021001 nanoscience & nanotechnology 01 natural sciences chemistry.chemical_compound chemistry Natural rubber visual_art 0103 physical sciences visual_art.visual_art_medium Adhesive Composite material 0210 nano-technology Isoprene |
| Zdroj: | RSC Advances. 7(11):6432-6438 |
| ISSN: | 2046-2069 |
| Popis: | Ohkubo Y., Ishihara K., Sato H., et al. "Adhesive-free adhesion between polytetrafluoroethylene (PTFE) and isobutylene-isoprene rubber (IIR): Via heat-assisted plasma treatment", RSC Advances, 7(11), 6432, 2017. https://doi.org/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. |
| Databáze: | OpenAIRE |
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