石油化工高等学校学报

石油化工高等学校学报 ›› 2010, Vol. 23 ›› Issue (1): 50-54.DOI: 10.3696/j.issn.1006-396X.2010.01.013

• 石油化工 • 上一篇    下一篇

氧化和硫化聚合物改性沥青流变性能研究

崔文峰,欧彦伟,金勇,王云普   

  1. 1 .西北师范大学化学化工学院, 甘肃兰州730070 ;　2 .中国石油兰州石化公司, 甘肃兰州730060
  • 收稿日期:2009-08-29 修回日期:2009-11-10 出版日期:2010-03-25 发布日期:2010-03-25
  • 作者简介:崔文峰(1964 -), 男, 甘肃通渭县, 高级工程师, 博士
  • 基金资助:
    中国石油兰州石化公司技术开发项目(KY0524S37510000000)

Rheological Characterization of SBR Modified Asphalts Under Oxidation and Sulfurization

  1. 1.Chemistry Institute of Northwest Normal University,Lanzhou Gansu 730070，P.R.China；
     2. Lanzhou Petrochemical Division of Petrochina，Lanzhou Gansu 730060，P.R.China
  • Received:2009-08-29 Revised:2009-11-10 Published:2010-03-25 Online:2010-03-25

PDF

摘要： 在基质沥青中加入一定量的 SBR、XSBR、SBS,观察对沥青材料常规性能以及-30～100℃下动态力学流变性能的影响。结果表明,加入粉末 SBR1500后改性沥青材料薄膜前后的延度和流变性能都有明显的改进,而硫化共混改性可显著提高低温下改性沥青的粘弹性能,低温性能明显改善;同时高温性能得到提高,改性沥青的车辙温度(G*/sinδ= 1 kPa)比基质沥青提高约 10℃;粘度增大,复合模量提高,在高温区的相位角和损耗因子变小,从而改善了沥青高温粘弹性能。硫化共混改性沥青对使用环境的温度敏感性变小,使改性沥青的高低稳定性能均得到改善,可在高温环境下使用,拓宽了 SBR改性沥青的使用范围。

关键词: SBS , SBR , XSBR , 改性沥青 , 氧化 , 硫化 , 流变性能

Abstract:

Polymer modified asphalts were prepared with SBR, XSBR,SBS under oxidation or sulfurization conditions using a special mixing technique. The low temperature properties of the binders were greatly improved, the dynamic mechanical properties of SBR-modified asphalts before and after oxidation or sulfurization were characterized at -30~100 ℃ by using dynamic shear rheometry. The results show that the addition of SBR1500 increased the binder elasticity at low temperature. And sulfurization modification is improved the complex modolus G* and elasticity property at high temperature, when G*/sinδ=1 kPa, the temperature of PMA is 10 ℃ higher  than the base asphalts after sulfurization,  also the δ became smaller than the base asphalts, their temperature susceptibility is reduced to a great extent.It indicates that the viscoelasticity of the modified binder had been improved effectively at the high temperature. And the temperature susceptibility of the vulcanized-SBR asphalts were reduced to a great extent, their properties were improved apparently from low to high temperature, their application would be developed widely in the high
temperature environment conditions.

Key words: Powder SBR , SBS , XSBR , Polymer modified asphalts , Oxidation , Sulfulrization , Rheological properties

引用本文

崔文峰,欧彦伟,金勇,王云普. 氧化和硫化聚合物改性沥青流变性能研究[J]. 石油化工高等学校学报, 2010, 23(1): 50-54.

CUI Wen-feng, OU Yan-wei, JIN Yong, WANG Yun-pu. Rheological Characterization of SBR Modified Asphalts Under Oxidation and Sulfurization[J]. Journal of Petrochemical Universities, 2010, 23(1): 50-54.

使用本文

0
    /   /   推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal.lnpu.edu.cn/syhg/CN/10.3696/j.issn.1006-396X.2010.01.013

               http://journal.lnpu.edu.cn/syhg/CN/Y2010/V23/I1/50



网站版权 © 2021《石油化工高等学校学报》编辑部

本系统由北京玛格泰克科技发展有限公司设计开发