高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (4): 788.doi: 10.7503/cjcu20140857

• 高分子化学 • 上一篇    下一篇

双组分加成型硅橡胶交联固化过程的流变学研究

张欢欢1,2, 许东华1, 管东波3, 姚卫国3(), 石彤非1()   

  1. 1. 中国科学科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022
    2. 中国科学院大学, 北京 100049
    3. 吉林大学材料科学与工程学院, 教育部汽车材料重点实验室, 长春 130025
  • 收稿日期:2014-09-22 出版日期:2015-04-10 发布日期:2015-03-13
  • 作者简介:联系人简介: 石彤非, 男, 博士, 研究员, 主要从事高分子物理研究. E-mail: tfshi@ciac.ac.cn. 姚卫国, 男, 博士, 副教授, 主要从事高分子物理和化学研究. E-mail: wgyao@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21274152, 51473168, 21234007, 21174146)、 国家“九七三”计划项目(批准号: 2010CB631100)、 吉林省科技厅科技发展计划(批准号: 20120319)和汽车内饰产品搪塑工艺关键技术研究(批准号: 2012362)资助

Rheological Properties of Two-component Silicon Rubber During Cross-linking by Addition Reaction

ZHANG Huanhuan1,2, XU Donghua1, GUAN Dongbo3, YAO Weiguo3,*(), SHI Tongfei1,*()   

  1. 1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130025, China
  • Received:2014-09-22 Online:2015-04-10 Published:2015-03-13
  • Contact: YAO Weiguo,SHI Tongfei E-mail:wgyao@jlu.edu.cn;tfshi@ciac.ac.cn
  • Supported by:
    † Supported by the Special Funds for National Basic Research Program of China(No.2010CB631100), the National Natural Science Foundation of China(Nos.21274152, 51473168, 21234007, 21174146), the Science and Technology Development Program of Jilin Province, China(No.20120319) and the Program of Key Technology Research for the Slush Process of Automotive Interior Product, China(No.2012362)

摘要:

采用流变学方法研究了双组分加成型硅橡胶的交联固化过程, 并研究了反应温度对反应速率的影响. 随着加成反应的进行, 体系中的交联程度逐渐增加; 反应温度升高, 硅橡胶完全交联固化所需时间减少.

关键词: 硅橡胶, 双组分加成反应, 交联固化, 流变性能

Abstract:

The kinetic for two-component silicon rubber formed by addition reaction was studied by the rheological method. The influence of reaction temperature on reaction rate was also explored. The Oscillatory frequency has no influence on the study for the cross-linking process of two-component silicon rubber with rheological method. As the addition reaction going on, the cross-linking degree becomes bigger and the properties of system change from liquid properties dominate to solid properties dominate. With reaction temperature increasing, the cross-linking rate of silicon rubber quickens and less time is needed to finish the cross-linking reaction. Based on the relation between cross-linking velocity and the reaction temperature, the apparent activation energy of system can be obtained. Rheological method is suitable for studying the silicon rubber cross-linking process.

Key words: Silicon rubber, Two-comporment addition reaction, Cross-linking, Rheological property

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