Grafting of Epoxy Resin on Surface-modified Poly(tetrafluoroethylene) Films
| Autor: | Thiam Beng Lim, En-Tang Kang, Koon Gee Neoh, C.Q. Cui, Z. J. Yu |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Glycidyl methacrylate
Materials science Composite number Surfaces and Interfaces General Chemistry Epoxy Surfaces Coatings and Films chemistry.chemical_compound chemistry Mechanics of Materials visual_art Materials Chemistry visual_art.visual_art_medium Surface modification Fluoropolymer Tetrafluoroethylene Wetting Composite material Curing (chemistry) |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1545-5823 0021-8464 |
| DOI: | 10.1080/00218460008029588 |
| Popis: | An epoxy/PTFE composite was prepared by curing the epoxy resin on the surface-modified PTFE film. Surface modification of PTFE films was carried out via argon plasma pretreatment, followed by UV-induced graft copolymerization with glycidyl methacrylate (GMA). The film composite achieved a 90°-peel adhesion strength above 15 N/cm. The strong adhesion of the epoxy resin to PTFE arose from the fact that the epoxide groups of the grafted GMA chains were cured into the epoxy resin matrix to give rise to a highly crosslinked interphase, as well as the fact that the GMA chains were covalently tethered on the PTFE film surface. Delamination of the composite resulted in cohesive failure inside the PTFE film and gave rise to an epoxy resin surface with a covalently-adhered fluoropolymer layer. The surface composition and microstructures of the GMA graft-copolymerized PTFE (GMA-g-PTFE) films and those of the delaminated epoxy resin and PTFE film surfaces were characterized by X-ray photoelectron spectroscop... |
| Databáze: | OpenAIRE |
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