| 摘要 |
<p>PURPOSE: A drawback to the production of many of conventional fluoroelastomers is their tendency towards "scorching", i.e., the premature or excessively rapid cure of the compound composition when exposed to elevated temperatures or high shear conditions that produce a high temperature environment. CONSTITUTION: A curable fluoroelastomer composition comprises the steps of: a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically-unsaturated monomer; a cross-linking agent; and an acid functional organo-onium compound. The scorching safety and shelf stability of curable fluoroelastomer compositions are improved by this method.</p> |
