| 纳米二氧化硅与SBR复合改性乳化沥青的性能研究 |
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| 引用本文： | 陈宪宏,刘杉,孙立夫. 纳米二氧化硅与SBR复合改性乳化沥青的性能研究[J]. 橡胶工业, 2007, 54(6): 337-340 |
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| 作者姓名： | 陈宪宏 刘杉 孙立夫 |
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| 作者单位： | 1. 湖南大学,材料科学与工程学院,湖南,长沙,410082;湖南省高分子材料应用技术重点实验室,湖南,长沙,410001
2. 湖南大学,材料科学与工程学院,湖南,长沙,410082 |
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| 摘 要： | 用差示扫描量热法（DSC）对纳米二氧化硅与SBR复合改性乳化沥青蒸发残留物的热性能进行研究。结果表明，加入SBR乳液、纳米二氧化硅后样品的温度稳定性和耐高温性能均得到提高；其中SBR（质量分数0．03）加纳米二氧化硅（质量分数0．0005）复合改性效果最佳。纳米二氧化硅与SBR形成网状结构以及SBR在体系中吸附油分后的溶胀作用是沥青性能改善的主要原因。
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| 关 键 词： | 纳米二氧化硅 乳化沥青 改性 差示扫描量热法 |
| 文章编号： | 1000-890X（2007）06-0337-04 |
| 修稿时间： | 2006-12-24 |
Preparation and properties of emulsion asphalt modified by nano-silica/SBR composite |
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| CHEN Xian-hong,LIU Shan and SUN Li-fu. Preparation and properties of emulsion asphalt modified by nano-silica/SBR composite[J]. China Rubber Industry, 2007, 54(6): 337-340 |
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| Authors: | CHEN Xian-hong LIU Shan SUN Li-fu |
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| Affiliation: | 1. Hunan University,Changsha 410082,China;2. Key Laboratory of Polymer Material Applied Technology of Hunan Province,Chang sha 410001,China |
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| Abstract: | The thermal properties of evaporation residue of emulsion asphalt modified by nano-silica/SBR composite were investigated by DSC.The results showed that the thermal stability and resistance to elevated temperatures of the emulsion asphalt were improved when modified by nano-silica or SBR;the optimal modified composite was SBR(mass fraction 0.03)/nano-silica(mass fraction 0.000 5).The mainly reasons for the properties improvement of asphalt were the reticular construction of nano-silica/SBR and the swelling of the SBR after oil absorption in the system. |
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| Keywords: | SBR |
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