Zirconium propionate adhesion

The peel adhesion of nitrocellulose to low density polyethylene, which had been treated in chromic-sulfuric acid or by corona discharge, is much increased when zirconium propionate is added to the nitrocellulose solution. Contact angle measurements on nitrocellulose and polyethylene surfaces treated with zirconium propionate show that their surface energies are not altered. The viscosities of solutions of nitrocellulose in an ethyl acetate/ethanol mixture are increased by zirconium propionate. The interpretation is that zirconium propionate interacts with carboxylic groups on polyethylene and hydrogen bonds to nitrocellulose.

Zirconium propionate adhesion

zirconium propionate adhesion

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