Polyurethane Composites New Alternative to Polyester & Vinyl Ester

摘要

Gains in processing know-how and advances in reactivity control to extend working time have placed polyurethane in the running for composite applications long dominated by unsaturated polyesters and vinyl esters.In the last two decades,PUR composites made inroads primarily in foamed structural RIM (SRIM) automotive interior and exterior parts such as pickup truck boxes,load floors,package shelves,and inner door panels.