@Article{jrm.2020.09201,
AUTHOR = {Hongze Gang, Qiqi Zhang, Wei Wang, Bangxin Cai, Jinfeng Liu, Shizhong Yang, Bozhong Mu},
TITLE = {Synthesis and Interfacial Properties of Bio-Based Zwitterionic Surfactants Derived from Different Fatty Acids in Non-Edible Vegetable Oils},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {8},
YEAR = {2020},
NUMBER = {4},
PAGES = {417--429},
URL = {http://www.techscience.com/jrm/v8n4/38714},
ISSN = {2164-6341},
ABSTRACT = {Waste cooking oils and non-edible vegetable oils are abundant and
renewable resources for bio-based materials which have showed great potential
applications in many industries. In this study, five fatty acids commonly found
in non-edible vegetable oils, including palmitic acid, stearic acid, linoleic acid,
linolenic acid, ricinoleic acid, and their mixtures, were used to produce bio-based
zwitterionic surfactants through a facile and high-yield chemical modification.
These surfactants demonstrated excellent surface/interfacial properties with the
minimum surface tensions ranging from 28.4 mN/m to 32.8 mN/m in aqueous
solutions. The interfacial tensions between crude oil and surfactant solutions were
remarkably reduced to lower values ranging from 0.0028 mN/m to 0.1983 mN/m
without the aid of extra alkali, which particularly implied a great potential application in enhanced oil recovery. Meanwhile, these bio-based surfactants also
showed good wetting properties (contact angles of ~ 51° comparing with that
of double distilled water, 92.04°) and appropriate predicted biodegradability
(degradation order of “weeks” for bio-based surfactants synthesized from saturated fatty acids, and “months” for those synthesized from unsaturated fatty
acids). Bio-based surfactants synthesized from unsaturated fatty acids showed better interfacial properties in reducing interfacial tension between crude oil and formation water. The bio-based surfactants presented in this study are alternative
substitutes for traditional petroleum-based surfactants in various surfactant application fields.},
DOI = {10.32604/jrm.2020.09201}
}