[1]耿九光,常青,原健安,等.用GPC研究SBS改性沥青交联结构及其稳定性[J].郑州大学学报(工学版),2008,29(02):14-17.[doi:10.3969/j.issn.1671-6833.2008.02.004]
　Geng Jiuguang,evergreen,Ken Yuan,et al.The structure and stability of SBS-modified bitumen crosslinking were studied by GPC[J].Journal of Zhengzhou University (Engineering Science),2008,29(02):14-17.[doi:10.3969/j.issn.1671-6833.2008.02.004]

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用GPC研究SBS改性沥青交联结构及其稳定性()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

29

期数:

2008年02期

页码:

14-17

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

The structure and stability of SBS-modified bitumen crosslinking were studied by GPC

作者:

耿九光; 常青; 原健安; 等.

长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064, 深圳路安特沥青高新技术有限公司,广东,深圳,518057, 长安大学理学院,陕西,西安,710064

Author(s):

Geng Jiuguang; evergreen; Ken Yuan ; etc

关键词:

SBS;  改性沥青;  交联;  凝胶渗透色谱

Keywords:

SBS;  modified bitumen;  crosslinking;  Gel permeation chromatography

DOI:

10.3969/j.issn.1671-6833.2008.02.004

文献标志码:

A

摘要:

为研究改性沥青中SBS的交联结构及其稳定性.采用凝胶渗透色谱(GPC)分析方法研究了SBS 交联结构的转变过程,并与荧光显微分析结果进行对比验证.结果表明:GPC分析结论与荧光显微一致,证明其能有效表征SBS交联结构;改性沥青加工过程中SBS平均分子量增大,形成交联结构,SBS种类和沥青种类对SBS的交联有不同程度的影响;经旋转薄膜烘箱老化试验(RTFOT)后有少量SBS交联结构发生降解,但其对沥青仍具有较好的改性效果.

Abstract:

In order to study the crosslinking structure and stability of SBS in modified asphalt. The transformation process of SBS crosslinked structure was studied by gel permeation chromatography (GPC) and compared with the fluorescence microscopy results. The results showed that the GPC analysis conclusion was consistent with fluorescence microscopy, which proved that it could effectively characterize the SBS crosslinked structure. During the processing of modified asphalt, the average molecular weight of SBS increased to form a cross-linked structure, and SBS species and asphalt species had different degrees of influence on the crosslinking of SBS. A small amount of SBS cross-linked structure was degraded after the rotating film oven aging test (RTFOT), but it still had a good modification effect on asphalt.

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