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Synthesis of Novel Cationic Asphalt Emulsifier and its Investigation by Online FTIR Spectrophotometry

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Abstract:

A novel cationic asphalt emulsifier of N-(3-polyoxyethylene nonyl phenyl ether (10)-2-hydroxyl) propyl-N,N,N-triethyl ammonium chloride was synthesized by nonylphenol polyoxyethylene ether (NP-10), epichlorohydrin and triethylamine. The optimum reaction condition was obtained. The yield reaches 48.72% at the optimum conditions of the feedstock mole ratio of NaOH to NP-10 1.0, the mole ratio of epichlorohydrin to NP-10 1.2, the mole ratio of triethylamine to NP-10 1.2, reaction temperature 70°C, and reaction time 8 h. The structure of the emulsifier was identified by FTIR. The synthesis process was monitored by online FTIR technique and the intermediate was detected. Based upon the experimental data, a plausible reaction mechanism was proposed for the reaction. The emulsifier belongs to slow-set asphalt emulsifier.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

189-193

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.189

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Online since:

July 2014

Authors:

Mei Jie Sun*, Lai Shun Shi, Zhe Ying Jin, Na Li, Xiang Tao

Keywords:

Asphalt, Emulsifier, Nonylphenol Polyoxyethylene Ether, Online FTIR, Synthesis

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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