| 多聚磷酸与丁苯橡胶复配改性沥青的性能 |
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| 引用本文： | 张峰,王云普. 多聚磷酸与丁苯橡胶复配改性沥青的性能[J]. 合成橡胶工业, 2009, 32(1) |
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| 作者姓名： | 张峰 王云普 |
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| 作者单位： | 西北师范大学,高分子研究所,甘肃省高分子材料重点实验室,甘肃,兰州,730070;西北师范大学,高分子研究所,甘肃省高分子材料重点实验室,甘肃,兰州,730070 |
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| 基金项目： | 西北师范大学科技创新工程项目 |
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| 摘 要： | 研究了多聚磷酸与丁苯橡胶复配改性剂对沥青的热稳定性、动态力学性能、黏度及低温抗裂性能的影响.结果表明,多聚磷酸的加入能够提高沥青的黏度,改善沥青的高温抗车辙性能;丁苯橡胶的加入提高了沥青的黏度和低温抗裂性能,但对沥青的高温抗车辙能力有一定的负面影响;使用少量交联剂可提高沥青的高温抗车辙性能,降低其黏度.综合考虑沥青的高低温性能,宜以添加2份(质量,下同)多聚磷酸、6份丁苯橡胶及0.04份硫黄为最佳改性剂配方.
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| 关 键 词： | 多聚磷酸 丁苯橡胶 沥青 改性剂 动态力学性能 黏度 |
Properties of asphalts modified with polyphosphoric acid/styrene-butadiene rubber |
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| Zhang Feng,Wang Yunpu. Properties of asphalts modified with polyphosphoric acid/styrene-butadiene rubber[J]. China Synthetic Rubber Industry, 2009, 32(1) |
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| Authors: | Zhang Feng Wang Yunpu |
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| Affiliation: | Key Laboratory of Polymer Materials of Gansu Province;Institute of Polymer;Northwest Normal University;Lanzhou 730070;China |
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| Abstract: | The high-temperature stability,viscosity,low-temperature cracking resistance of polyphosphoric acid(PPA)/styrene-butadiene rubber(SBR) modified asphalt were investigated respectively.The results showed that the high-temperature furrow resistance and viscosity of asphalt were improved significantly with the addition of PPA.Although the use of SBR could improve low-temperature cracking resistance and viscosity of asphalt,it could cause ne-gative effects on high-temperature performance.The use of a little cros... |
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| Keywords: | polyphosphoric acid styrene-butadiene rubber asphalt modifier dynamic property viscosity |
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