Research on Enzymatic Hydrolysis Lignin Modified Petroleum Asphalt

Abstract:

In this paper, a series of enzymatic hydrolysis lignin modified petroleum asphalts were prepared. The physical properties such as softening point, ductility at low temperature and penetration of the modified asphalt were investigated. The penetration index of asphalt modified with EHL was higher than that of unmodified asphalt, equivalent softening point increased and equivalent brittle point decreased with the increase of EHL amount, which showed that the addition of EHL was favorable to reduce the temperature susceptivity of asphalt. When the EHL was 4%, the ductility was 39.0 cm. Meanwhile, low temperature performance of asphalt could be further improved by adding EHL and a small amount of SBS.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 1080-1083
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.1080
• Online since: August 2011
• Authors: Zhi Dong Zhao, Yao Xie, Xian Su Cheng, Yan Qiao Jin, Ming Yang Xu
• Keywords: Ductility, Enzymatic Hydrolysis Lignin, Penetration, Polymers Modified Asphalt, Softening Point

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