PVA film adhesion: plasma treatment offers a strong fix

Summary for pva film adhesion Discussion

Polyvinyl alcohol PVA film adhesion with epichlorhydrine ECO rubber is the core question here: François Lefebre asked for an easy agent or surface treatment to improve bonding between a PVA film and ECO rubber, with the film to be applied after vulcanisation rather than during. The only answer in the thread comes from H.R. Prabhakara, who recommends plasma treatment as a practical option because it cleans and activates the surfaces and promotes bonding. No other methods, comparisons, or cautions are discussed in the excerpt, so the thread’s practical takeaway is limited to plasma surface activation as the suggested route for improving adhesion.

Q. Hello, I’m an engineer student looking for easy agents/surface treatments to improve adhesion between PVA film and ECO rubber? Have you any idea please? the film should be applied to the ECO rubber after vulcanisation and not during. Thanks in advance

François LEFEBRE
– Strasbourg, France
April 4, 2017

A. Plasma treatment cleans & activates the surfaces and promote bonding.

H.R. Prabhakara – Consultant
Bangalore Plasmatek – Bangalore Karnataka India
April 5, 2017