| 分散剂和偶联剂对白炭黑填充硅橡胶性能的影响 |
| Effect of Dispersant and Coupling Agent on Properties of Silica Filled MVQ |
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| DOI： |
| 中文关键词: 锌皂分散剂 硅烷偶联剂 白炭黑 硅橡胶 补强 叠加效应 |
| 英文关键词: zinc soap dispersant silane coupling agent silica MVQ reinforcement superposition |
| 基金项目:国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10676009)；科技部科技型中小企业技术创新基金项目(08C26214411262) |
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| 中文摘要: |
| 研究锌皂分散剂、偶联剂KH-560及其并用对白炭黑填充硅橡胶性能的影响。结果表明，锌皂分散剂和偶联剂KH-560均能弱化填料网络结构，促进白炭黑的分散，减小胶料在低应变下的储能模量，且二者并用效果更佳；结合胶质量分数增大表明偶联剂KH-560和锌皂分散剂并用能够提高填料与硅橡胶间的相互作用；锌皂分散剂的加入明显缩短了胶料的正硫化时间，在保证操作安全的前提下，显著加快了硫化速率；偶联剂KH-560改性白炭黑体系中加入少量的分散剂，硫化胶的硬度、100%和300%定伸应力、拉伸强度呈增大趋势，拉断伸长率减小。 |
| 英文摘要: |
| The effect of zinc soap dispersant，coupling agent KH-560 and their blend on the properties of silica filled MVQ was investigated.The results showed that，by adding the dispersant or coupling agent KH-560，the filler network structure was weakened，the dispersion of silica in MVQ compound was improved，the storage modulus of compound at low strain was reduced and a stronger effect was gained in their blend.The increased bound rubber indicated that，the silica-rubber interaction was enhanced by coupling agent KH-560 and zinc soap dispersant blend.The optimum curing time of mixture was obviously reduced by the zinc soap dispersant，and the curing rate was significantly accelerated.The Shore A hardness，modulus at 100% and 300% elongation，and the tensile strength of silica filled MVQ were slightly increased by adding zinc soap dispersant and coupling agent KH-560，and the elongation at break decreased. |
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