Abstract
The effects of plasma treatment of pyromellitic dianhydride-4,4'-oxydianiline polyimide (PMDA-ODA PI) on the adhesion strength of novolac epoxy resin/PMDA-ODA PI joints were studied. The adhesion strength of novolac epoxy resin/PMDA-ODA PI joints increased by plasma treatment of PMDA-ODA PI. Oxygen and argon plasmas were better than ammonia plasma in improving the adhesion strength. However, the adhesion strength decreased by aging oxygen and argon treated PMDA-ODA PI above 150 C and ammonia treated PMDA-ODA PI above 250 C, which was not correlated with the surface energy of thermally aged plasma treated PMDA-ODA PI. The failure mode of the joints was found to be cohesive in the PMDA-ODA PI layer very close to the interface. The adhesion mechanism of novolac epoxy resin/plasma treated PMDA-ODA PI joints was investigated and the decrease of adhesion strength by thermally aging the plasma treated PMDA-ODA PI was examined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
