| 剪切温度对橡胶粉-沥青体系热降解规律的影响 |
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| 引用本文： | 张小英,徐传杰,张玉贞.剪切温度对橡胶粉-沥青体系热降解规律的影响[J].石油炼制与化工,2010,41(1):55-58. |
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| 作者姓名： | 张小英 徐传杰 张玉贞 |
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| 作者单位： | 中国石油大学重质油国家重点实验室,东营,257061 |
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| 摘 要： | 从橡胶粉-沥青体系的相对分子质量分布、溶解度、高温性质方面研究了剪切温度对橡胶粉-沥青体系热降解规律的影响。结果表明,随剪切温度的升高,橡胶粉-沥青体系的相对分子质量分布向小分子方向发展,溶解度增加,复合模量降低,相位角增加,粘度降低,软化点降低。可以通过剪切温度和剪切时间的互补关系实现可控降解。
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| 关 键 词： | 橡胶粉 改性沥青 热降解 温度 |
| 收稿时间： | 2009-6-4 |
EFFECT OF SHEARING TEMPERATURE ON THE THERMAL DEPOLYMERIZATION OF CRUMB RUBBER-ASPHALT SYSTEM |
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| Zhang Xiaoying,Xu Chuanjie,Zhang Yuzhen.EFFECT OF SHEARING TEMPERATURE ON THE THERMAL DEPOLYMERIZATION OF CRUMB RUBBER-ASPHALT SYSTEM[J].Petroleum Processing and Petrochemicals,2010,41(1):55-58. |
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| Authors: | Zhang Xiaoying Xu Chuanjie Zhang Yuzhen |
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| Abstract: | The effect of shearing temperature on the thermal depolymerization of crumb rubber–asphalt system was studied based on analyzing some properties of the crumb rubber-asphalt system, such as the dissolution of crumbs in toluene, the relative molecular weight distributions and high-temperature properties. Results show that with the increase of shearing temperature, the molecular weight, complex modulus, viscosity and softening point decrease, the dissolution of crumbs in toluene and phase angle increase. The thermal depolymerization of crumb rubber–asphalt system could be controlled by using the coadjustment of shearing temperature and shearing time. |
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| Keywords: | crumb rubber modified asphalt thermal depolymerization temperature |
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