| 孙宇鹏,武智鹏,陈晓锋,吴婷婷,曾土儿,陈登龙.硅烷偶联剂TPTS和表面活性剂PEG-400协同改性白炭黑/天然橡胶复合材料的制备及性能研究[J].橡胶科技,2023,21(3):0115-0122. |
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| 硅烷偶联剂TPTS和表面活性剂PEG-400协同改性白炭黑/天然橡胶复合材料的制备及性能研究 |
| Preparation and Properties of Silica/Natural Rubber Composites Modified by Silane Coupling Agent TPTS and Surfactant PEG-400 and PEG-400 |
| 投稿时间：2022-12-15 修订日期：2022-12-15 |
| DOI：10.12137/j.issn.2095-5448.2023.03.0115 |
| 中文关键词: 天然胶乳 白炭黑 乳液复合法 封闭巯基型硅烷偶联剂 聚乙二醇 改性 |
| 英文关键词: natural rubber latex silica latex co-coagulation sealed sulfhydryl silane coupling agent polyethylene glycol modification |
| 基金项目:福建省科技计划项目（2020H4014） |
| 中图分类号: |
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| 中文摘要: |
| 使用酰基硫代烷基三烷氧基硅烷（TPTS）和表面活性剂PEG-400（简称PEG-400）协同改性白炭黑，通过乳液复合法制备白炭黑/天然橡胶（NR）复合材料，研究TPTS与PEG-400的配比对复合材料性能的影响。结果表明：与未改性的复合材料相比，改性后的复合材料硫化速率提高，白炭黑自聚集现象减弱，加工性能改善，物理性能提高；当TPTS/PEG-400质量比为6/2时，改性白炭黑对NR的补强效果最为理想，复合材料的拉伸强度提高33.6%，300%定伸应力提高47.4%；在TPTS与PEG-400总用量恒定的情况下，随着PEG-400用量的增大，复合材料的滚动阻力呈降低趋势，但抗湿滑性能也会有所下降，通过TPTS和PEF-400的协同改性可以使复合材料在抗湿滑性能和滚动阻力间取得合适的平衡点。 |
| 英文摘要: |
| In this study，the silica was modified by thioacyl propyl triethoxyl silane（TPTS） and surfactant PEG-400，then appied in silica/natural rubber（NR） composites system by latex co-coagulation method，and the effect of the ratio of TPTS and PEG-400 on the properties of composites was studied.The results showed that，compared with the composite without the coupling agents modification，the vulcanization rate of the modified composite was increased，the self-aggregation of silica was weakened，and the processability and physical properties were improved.When the mass ratio of TPTS/PEG-400 was 6/2，the reinforcement effect of modified silica on NR was optimized，as a result that the tensile strength of the composite increased by 33.6% and the modulus at 300% elongation increased by 47.4%.When the total amount of TPTS and PEG-400 was constant，with the increase of the amount of PEG-400，both the rolling resistance and wet skid resistance of the composites decreased.Through the modification of TPTS and PEG-400，a proper balance between the wet skid resistance and rolling resistance of the composite could be achieved. |
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