CURING BEHAVIORS AND KINETIC ANALYSIS OF MODIFIED BMC UNSATURATED POLYESTER

The curing behaviors and kinetics analysis of polyethylene glycol modified unsaturated polyester for bulk moulding compounds (BMC) were examined by means of IR and DSC. The curing kinetic parameters of the modified systems were obtained by the Kissinger's equation and Crane's equation. It has shown that the reactive maleic anhydride terminated polyethylene glycol participated in the curing reaction of the unsaturated polyester, which lowered the curing temperature and accelerated the curing process of the system.