| 赵之朋,俞正洲,杜丽丽,魏传铎,王佳鹏.白炭黑硅烷化改性程度表征方法的研究[J].橡胶科技,2023,21(10):0491-0495. |
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| 白炭黑硅烷化改性程度表征方法的研究 |
| Study on Characterization Method for Silanization Modification Degree of Silica |
| 投稿时间：2022-10-13 修订日期：2022-10-13 |
| DOI：10.12137/j.issn.2095-5448.2023.10.0491 |
| 中文关键词: 白炭黑 硅烷偶联剂 胎面胶 硅烷化改性 Payne效应 分散性 |
| 英文关键词: silica silane coupling agent tread compound silanization modification Payne effect dispersion |
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| 中文摘要: |
| 研究白炭黑硅烷化改性程度表征方法。结果表明：填料与填料之间的相互作用强烈依赖于应变，小于50%应变下的Payne效应可以很好地表征白炭黑硅烷化改性程度；在相同温度、频率和时间下，应变越小，越能区分出白炭黑的分散性优劣，通过橡胶加工分析仪小应变等温试验得到的弹性模量可以表征白炭黑的硅烷化改性程度；大应变模量与小应变模量比值越大，说明填料网络化作用越小，硅烷化反应越完全，填料分散性越好；门尼粘度、硬度、耐磨性能、损耗因子、动态压缩生热等也可侧面表征白炭黑的硅烷化改性程度。所得性能数据需综合对比和深度分析。 |
| 英文摘要: |
| Characterization methods for the silane modification degree of silica were studied.The results indicated that the interaction between fillers strongly depended on strain and the Payne effect at less than 50% strain could effectively characterize of the silanization modification degree of silica.At the same temperature，frequency and time，the smaller the strain，the better the dispersion of silica could be distinguished，and the elastic modulus obtained by the small strain isothernal test of RPA could characterize the silane modification degree of silica.The larger the ratio of large strain modulus to small strain modulus，the smaller the network effect of the filler，the more complete the silylation reaction and the better the dispersion of the filler.Mooney viscosity，hardness，wear resistance，loss factor，dynamic compression heat build-up，etc. could also indirectly characterize the silane modification degree of silica.The obtained performance data need to be comprehensively compared and in-depth analyzed. |
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