STUDY ON THE RADIATION CROSSLINKING OF SILICONE RUBBER Ⅱ.THE KINETICS OF GEI FORMATION

Wang Mingjun; Zhang Shijie

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STUDY ON THE RADIATION CROSSLINKING OF SILICONE RUBBER Ⅱ.THE KINETICS OF GEI FORMATION

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- STUDY ON THE RADIATION CROSSLINKING OF SILICONE RUBBER Ⅱ.THE KINETICS OF GEI FORMATION
- Journal of Radiation Research and Radiation Processing Vol. 8, Issue 4, Pages: 203-209(1990)
- 作者机构：
  
  上海交通大学，上海
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1990-11，
  
  Received：10 May 1989，
- 稿件说明：
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Wang Mingjun, Zhang Shijie. STUDY ON THE RADIATION CROSSLINKING OF SILICONE RUBBER Ⅱ.THE KINETICS OF GEI FORMATION. [J]. Journal of Radiation Research and Radiation Processing, 1990,8(4):203-209.
DOI：

Wang Mingjun, Zhang Shijie. STUDY ON THE RADIATION CROSSLINKING OF SILICONE RUBBER Ⅱ.THE KINETICS OF GEI FORMATION. [J]. Journal of Radiation Research and Radiation Processing, 1990,8(4):203-209. DOI：

摘要

本文研究了二甲基和不同乙烯基含量的甲基乙烯基硅橡胶的辐射交联凝胶生成动力学。在0—100 kGy剂量范围，从实验上证实了单位剂量交联度q

为常数，而溶胶分子量

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与剂量关系符合

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对二甲基硅橡胶（DMSR），b值为0.70。对不同乙烯基含量的甲基乙烯基硅橡胶（MVSR），b值为0.77～0.80，近似不变。从凝胶生成的动力学方程可得

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对DMSR β值为0.30。对不同乙烯基含量的MVSR β值为0.20～0.23。

Abstract

In this paper

the kinetics of gel formation in the radiation crosslinking reaction was investigated for dimethyl silicone rubber (DMSR) and methyl vinyl silicone rubber (MVSR) with different vinyl contents. At 0—100 kGy dose range

the following results can be obtained by experiments

namely the degree of crosslinking per unit dose (q

) is constant

and the relationship between sol molecular weight (

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and dose (R) may be described as following equation:

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b value is 0.70 for DMSR

and 0.77—0.80 for MVSR with various vinyl content. From the kinetics equation of gel formation

the distribution of gel and sol in the process of radiation crosslinking of silicone rubber can be discussed according to the following eq.;

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β value is 0.30 for DMSR and 0.20—0.23 for MVSR with various vinyl content.

关键词

甲基乙烯基硅橡胶乙烯基含量凝胶生成动力学辐射交联溶胶分子量溶胶凝胶分配

Keywords

Methyl vinyl silicone rubberVinyl contentKinetics of gel formationRadiation crosslinkingSol molecular weightDistribution of sol and gel

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