加成型液体硅橡胶硫化动力学的非等温DSC研究  

Study on Non-isothermal DSC of Curing Kinetics of Additional Liquid Silicone Rubber

作　　者：房佳丰 郑铭焕 覃柳琪 吴强[1,2,3] 张宝华 张春晖 陈世龙 

机构地区：[1]浙江农林大学工程学院,浙江临安311300 [2]浙江省木材科学与技术重点实验室,浙江临安311300 [3]浙江凌志新材料有限公司,浙江临安311300

出　　处：《有机硅材料》2018年第1期1-7,共7页Silicone Material

基　　金：浙江省重点科技创新团队项目(2013TD17);浙江省重大科技专项重点工业项目(2014C01039);国家级大学生创新创业训练计划(2013200065);浙江农林大学大学生科研训练项目(2013200015)

摘　　要：采用差示扫描量热法(DSC)研究了炔醇抑制剂与铂催化剂质量比对加成型液体硅橡胶(ALSR)体系非等温硫化动力学行为的影响。结果表明,炔醇抑制剂与铂催化剂质量比越高,ALSR体系的硫化特征温度越高;当抑制剂与催化剂质量比为5∶1时,硫化特征温度随炔醇抑制剂(或铂催化剂)含量增加基本不发生改变;而当抑制剂与催化剂质量比为6∶1时,硫化特征温度随着炔醇抑制剂(或铂催化剂)含量增加而上升,表明该比例下炔醇抑制剂对体系硫化起主导作用。还采用Kissinger法、Málek法和eatak-Berggren自催化模型确定了ALSR体系的硫化动力学方程,可有效描述ALSR体系的硫化动力学行为。The influence of the ratio of acetylenic alcohol inhibitor/platinum catalyst on the curing kinetics of ALSR was studied by non-isothermal differential scanning Calorimeter（DSC）. It was found that the higher the ratio of acetylenic alcohol inhibitor/platinum catalyst, the higher the curing temperature of ALSR. As the ratio of acetylenic alcohol inhibitor/platinum catalyst = 5, the ALSR curing temperature did not change with the increasing of aeetylenic alcohol inhibitor（ or platinum catalyst） ; as the ratio of acetylenie alcohol inhibitor/ platinum catalyst = 6, the ALSR curing temperature increased with the increasing of acetylenic alcohol inhibitor （ or platinum catalyst）, which suggested the inhibitor played a leading curing kinetic equations of ALSR were estimated by Kissinger equation, role in the system. Furthermore, the Malek and Seatak-Berggren model, which could effectively describe the vulcanization dynamics behavior of ALSR system.

关 键 词：加成型 液体硅橡胶 炔醇抑制剂 非等温DSC 硫化 动力学 

分 类 号：TQ333.93[化学工程—橡胶工业]