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Student asks the adhesion mechanism for rubber on glass

I am a student at University of Cincinnati working on a project of rubber to metal bonding using a plasma polymerized primer film. The metal I use is 70-30 brass and the adherent is Natural Rubber. I am getting good adhesion but I want to understand the bonding mechanism. Please reply if you have any insights.

Thanking you,

Akshay Ponda
student - Cincinnati, Ohio, United States of America
2003

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First of two simultaneous responses --

Usually a copper sulfide layer is required for good adhesion. You have to look into the composition of your substrate or may be you can increase some sulfur ⇦this on eBay or Amazon [affil links] in the rubber compound during vulcanizing but it again depends upon the conditions and the final temperature of your curing process.

Jaspreet Singh
- Cincinnati
2003

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Second of two simultaneous responses --

Sounds like you should be the one to ask re: plasma treated bonder sheets. Otherwise the internet is not short on adhesion theory - try Van der Waals bonding.

Good luck and keep at it!

Mr. Molder
Computers - Toronto, ON
2003