| 降低MVQ硫化胶模量的研究 |
| Study on Silicone Rubbers with Low Elastic Modulus |
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| DOI： |
| 中文关键词: MVQ 模量 二甲基硅油 1，2-丙二醇 丙三醇 |
| 英文关键词: MVQ mudulus dimethyl silicone oil 1,2-propanediol propanetriol |
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| 中文摘要: |
| 探讨了用增塑剂二甲基硅油、丙三醇和1，2-丙二醇降低甲基乙烯基硅橡胶（MVQ）硫化胶模量的途径。结果表明，二甲基硅油可降低MVQ硫化胶的模量，但硫化胶扯断永久变形和压缩永久变形较大；丙三醇对MVQ硫化胶性能的影响与其结构控制剂有关，用二苯基硅二醇作结构控制剂时，可采用丙三醇降低硫化胶模量，用羟基硅油作结构控制剂时，不宜采用丙三醇调节硫化胶的模量；1，2-丙二醇可显著降低MVQ硫化胶模量，而且硫化胶的力学性能和耐热老化性能十分优异。 |
| 英文摘要: |
| A study was made on the application of dimethyl silicone oil，propanetriol and 1，2-propanediol to decrease the modulus of MVQ vulcanizate. The results showed that the modulus of MVQ vulcanizate decreased with dimethyl silicone oil while the tensile set and compression set increased；the influence of propanetriol on the properties of MVQ was related to the structure control agent，for example，diphenyl silandiol rather than hydroxyl silicone oil was a suitable structure control agent for propanetriol to decrease the modulus of MVQ vulcanizate；the modulus of MVQ vulcanizate could be significantly decreased by 1，2-propanediol and the excellent physical properties and heat aging resistance of vulcanizate could be obtained. |
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