| 烷偶联剂原位改性白炭黑/溶聚丁苯橡胶 复合材料的流变性能和力学性能研究 |
| Rheological and Mechanical Properties of Silica/SSBR Composites Modified In-situ by Silane Coupling Agent |
| 投稿时间：2021-01-02 修订日期：2021-01-02 |
| DOI：10.12136/j.issn.1000-890X.2022.09.0652 |
| 中文关键词: 白炭黑 溶聚丁苯橡胶 硅烷偶联剂 原位改性 Payne效应 流变性能 力学性能 损耗因子 |
| 英文关键词: silica SSBR silane coupling agent in-situ Payne effect rheological property mechanical property loss factor |
| 基金项目:山东省重大科技创新工程项目（2018CXGC0605） |
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| 中文摘要: |
| 制备3种硅烷偶联剂（Si69，Si75，NXT）原位改性白炭黑/溶聚丁苯橡胶（SSBR）复合材料，研究硅烷偶联剂对白炭黑/SSBR复合材料流变性能和力学性能的影响。结果表明：硅烷偶联剂NXT在降低善白炭黑填料网络化程度方面比偶联剂Si69和Si75的效果更明显；硅烷偶联剂NXT改性白炭黑/SSBR复合材料（混炼胶和硫化胶）的剪切储能模量较低，Payne效应较弱，加工性能较好，损耗因子和活化能较小，拉伸储能模量对温度依赖性较弱，硬度、拉伸强度和拉断伸长率相当，撕裂强度较大，白炭黑分散性优异，白炭黑与橡胶之间的相互作用较强。 |
| 英文摘要: |
| In this study，the silica/solution polymerized styrene butadiene rubber（SSBR） composites
were preparedby in-situ modification using three kinds of silane coupling agents（Si69，Si75，NXT），and the
effects of the silane coupling agents on the rheological and mechanical properties of the composites were
studied. The results showed that the silane coupling agent NXT was more effective than the coupling agents
Si69 and Si75 in reducing the network degree of the silica fillers.Compared with the silica/SSBR composites
modified by silane coupling agents Si69 and Si75，the shear storage modulus of the silica/SSBR composites
modified by silane coupling agent NXT was lower，the Payne effect was weaker，the processability was
better，the loss factor and activation energy were smaller，the temperature dependence of the tensile storage
modulus was weaker，the hardness，tensile strength and elongation at break were equivalent，but the tear
strength was higher，the dispersion of the silica was excellent，and the interaction between the silica and
rubber was stronger. |
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