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| 纳米碳酸钙的表面改性及其填充107硅橡胶复合材料的性能研究 |
| Surface Modification of Nano Calcium Carbonate and Property of Filled 107 Silicone Rubber |
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| DOI： |
| 中文关键词: 纳米碳酸钙；硅橡胶；表面改性；复合材料；分散性；Payne效应；物理性能 |
| 英文关键词: nano-CaCO3；silicone rubber；surface modification；composite；dispersibility；Payne effect；physical property |
| 基金项目: |
| 中图分类号:TQ333. 93；TQ330. 38＋3 |
| Author Name | Affiliation | | DING Hao | Beijing University of Chemical Technology | | ZOU Hua | Beijing University of Chemical Technology | | WANG Tianqiang | Chengdu Guibao Science and Technology Co.，Ltd | | ZHANG Liqun | Beijing University of Chemical Technology |
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| 中文摘要: |
| 采用硬脂酸对纳米碳酸钙进行湿法表面改性，探讨改性机理，研究107硅橡胶/改性纳米碳酸钙复合材料的性能。结果表明：硬脂酸对纳米碳酸钙表面改性的效果较好，硬脂酸主要通过化学吸附改性纳米碳酸钙；随着硬脂酸用量增大，纳米碳酸钙的活化度增大，在107硅橡胶中的分散性提高；107硅橡胶/改性纳米碳酸钙复合材料Payne效应减弱，拉
伸强度、拉断伸长率和撕裂强度增大。 |
| 英文摘要: |
| In this study，nano-CaCO3 was modified by stearic acid via wet surface modification process，the modification mechanism was discussed，and the properties of 107 silicone rubber/modified nano-CaCO3 composites were investigated. The results showed that the modification process was mainly chemical adsorption of stearic acid onto the surface of nano-CaCO3 and the modification effect of stearic acid was good. It was found that with the increase of the amount of stearic acid，the activation degree of nano-CaCO3 increased，its dispersion in the silicone rubber was improved，Payne effect of the composites was reduced，and the tensile strength，tensile elongation at break and tear strength increased. |
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