STUDY ON CURING CHARACTERISTICS OF UNSATURATED POLYESTER RESIN WITH TBPB /TBPO

The curing behavior of unsaturated polyester with complex initiation system TBPB /TBPO was studied by dynamic DSC.The effects of curing system by different content of TBPO were compared.With the increase of content of TBPO from 10% to 100%,the curing temperature was decreased from 142℃ to 120.8℃.Simultaneously,the gel time was reduced from 214s to 79.5s and the cure time were found to decrease from 634.4s to 171.5s.