Paper Information

Journal:   IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)   DECEMBER 2010-JANUARY 2011 , Volume 23 , Number 5 (ISSUE NO.109); Page(s) 415 To 422.
 
Paper: 

EFFECT OF INITIATOR ON THERMAL CURING OF UNSATURATED POLYESTER RESINS

 
 
Author(s):  NADERI N., BEHESHTY M.H.*, MAZINANI S.
 
* IRAN POLYMER AND PETROCHEMICAL INSTITUTE, TEHRAN, IRAN
 
Abstract: 
One of the common methods to cure unsaturated polyester resins is to use dual initiators. In order to produce an appropriate composite, it is necessary to know the effect of dual initiators on curing behavior. In this paper the effect of benzoyl peroxide, BPO, and tertiary butyl perbenzoate, TBPB, and their mixtures on thermal curing of an unsaturated polyester resin have been investigated. BPO and TBPB are medium and high temperature initiators, respectively. SPI and DSC tests have been used for this evaluation. SPI test results show that in curing system containing TBPB/BPO, higher gel time, lower curing peak temperature and lower release heat have been achieved by using higher amount of TBPB. DSC results show that a suitable curing system can be achieved by using a dual initiator system.
 
Keyword(s): UNSATURATED POLYESTER RESIN, THERMAL CURING, MIXTURE OF INITIATORS, SPI, DSC
 
References: 
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