METHOD OF BONDING A FLUOROELASTOMER COMPOUND TO A METAL SUBSTRATE USING LOW MOLECULAR WEIGHT FUNCTIONAL HYDROCARDONS AS BONDING PROMOTER

摘要

Provided are methods of bonding a fluoroelastomer to a metal substrate; fluoropolymer compounds comprising a fluoroelastomer, a curing agent and a bonding promoter; and composite materials obtained by curing the compound. Further provided is the use of bonding promoters for increasing the bond strength between a fluoroelastomer and a metal substrate.

主权项

1. A method of bonding a fluoroelastomer to a metal substrate, said method comprises:
i) providing a fluoroelastomer compound comprising a) one or more fluoroelastomer that is curable by a bisphenol curing and b) one or more curing agent with which the fluoroelastomer can be cured, and bringing the fluoroelastomer compound in contact with the metal substrate to form a common interface, ii) curing the fluoroelastomer compound in the presence of an effective amount of at least one bonding promoter, wherein the bonding promoter has a molecular weight of less than 5,000 g/mole and a boiling point of at least 150° C. at 760 Torr and is selected from saturated aliphatic or aromatic hydroxy ethers, aliphatic monoalkyl esters of an aliphatic or aromatic carboxylic acid and a combination thereof.