Luperox F40S对EPDM硫化动力学的影响研究  

Effect of Luperox F40S on vulcanization kinetics of EPDM

作　　者：赵伟萍 刘广永[1] 邱桂学[1] ZHAO Weiping;LIU Guangyong;QIU Guixue(Key Laboratory of Rubber-plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《弹性体》2018年第2期26-30,共5页China Elastomerics

基　　金：山东省自然科学基金项目(ZR2017BEM015)

摘　　要：采用无转子硫化仪测定过氧化物Luperox F40S硫化三元乙丙橡胶(EPDM)的过程,并探讨了Luperox F40S用量对该体系硫化动力学的影响,计算了硫化动力学参数。结果表明,随着Luperox F40S用量增加,EPDM弹性扭矩变大,工艺正硫化时间缩短;EPDM硫化阶段前期为一级反应(n=1),反应速率常数随着Luperox F40S用量增加而变大;硫化阶段后期为非一级反应(n≠1),反应较复杂,但Luperox F40S用量对反应级数和速率常数都有一定程度的影响。In this paper,the vulcanization process of peroxide Luperox F40S vulcanizing ethylene propylene diene monomer(EPDM)was studied by using of moving die rheometer,and the effect of Luperox F40S content on the kinetics was investigated to calculate the relevant kinetic parameters.The results indicated that with the increase in the amount of Luperox F40S,EPDM elastic torque increases,and optimum cure time is shortened;In the earlier stage of EPDM vulcanization showing a first-order reaction,with the increment of Luperox F40S,the reaction rate constant increases;while in the later vulcanizing stage appearing non-first-order reaction,the reaction is more complex,the Luperox F40S content shows obvious influence on reaction order and rate constant to a certain degree.

关 键 词：无转子硫化仪 LuperoxF40S 硫化动力学 反应级数 速率常数 

分 类 号：TQ333.4[化学工程—橡胶工业]