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上海交通大学,上海
纸质出版日期:1990-11,
收稿日期:1989-05-10,
移动端阅览
王铭钧, 章士杰. 硅橡胶的辐射交联研究(Ⅱ)凝胶生成动力学[J]. 辐射研究与辐射工艺学报, 1990,8(4):203-209.
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.
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
0
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。
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
0
) 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.
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
Methyl vinyl silicone rubberVinyl contentKinetics of gel formationRadiation crosslinkingSol molecular weightDistribution of sol and gel
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