|本期目录/Table of Contents|

[1]轩 杰,薛 明.非晶态α-烯烃共聚物/丁苯橡胶复合改性沥青的高温流变特性[J].合成橡胶工业,2023,5:417-420.
 XUAN Jie,XUE Ming.High-temperature rheological properties of amorphous poly-α-olefin/styrene-butadiene rubber composite modified asphalt[J].China synthetic rubber industy,2023,5:417-420.
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非晶态α-烯烃共聚物/丁苯橡胶复合改性沥青的高温流变特性(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2023年5期
页码:
417-420
栏目:
出版日期:
2023-10-15

文章信息/Info

Title:
High-temperature rheological properties of amorphous poly-α-olefin/styrene-butadiene rubber composite modified asphalt
文章编号:
1000-1255(2023)05-0417-04
作者:
轩 杰1薛 明2
1. 河南省交通检测技术研究院有限公司,郑州 450000; 2. 同济大学 交通运输工程学院,上海 200092
Author(s):
XUAN Jie1 XUE Ming2
1. Henan Transportation Inspection Technology Research Institute Co Ltd, Zhengzhou 450000, China; 2. College of Transportation Engineering, Tongji University, Shanghai 200092, China
关键词:
非晶态α-烯烃共聚物丁苯橡胶复合改性沥青高温流变特性耐老化性能
Keywords:
amorphous poly-α-olefin styrene-butadiene rubber composite modified asphalt high- temperature rheological property aging resistance
分类号:
TQ 333.1
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2023.05.0417
文献标识码:
B
摘要:
采用热塑性树脂类改性剂非晶态α-烯烃共聚物(APAO)和丁苯橡胶(SBR)对沥青进行改性制备了APAO/SBR复合改性沥青,测试了其基本性能,同时采用布氏黏度仪和动态剪切流变仪考察了APAO与SBR的质量比对复合改性沥青高温流变特性的影响。结果表明,随着APAO用量的增加,APAO/SBR复合改性沥青的针入度、延度、质量损失率和相位角逐渐减小,软化点、黏度和车辙因子逐渐增大;APAO可以提升沥青的高温抗车辙性能,APAO/SBR复合改性沥青呈现出剪切变稀的现象。
Abstract:
Asphalt was modified by thermoplastic resin modifier amorphous poly-α-olefin (APAO) and styrene-butadiene rubber (SBR) and APAO/SBR composite modified asphalt was prepared. The basic properties of the composite modified asphalts were tested. The effect of the mass ratio of APAO to SBR on the high-temperature rheological properties of composite modified asphalt was investigated by Brookfield viscometer and dynamic shear rheometer. The results showed that with the increasing amount of APAO, the penetration, ductility, mass loss rate, and phase angle of APAO/SBR composite modified asphalt decreased gradually, while the softening point, viscosity and rutting factor increased gradually. APAO could improve the high-temperature rutting resistance of asphalt, and APAO/SBR composite modified asphalt exhibited a phenomenon of shear thinning.

参考文献/References

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备注/Memo

备注/Memo:
更新日期/Last Update: 1900-01-01