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Preparation of Micro/Nano Lignin by Self-assembly of Surfactant Hydrotropy System and Its Application in Ultraviolet Protection
Received:July 12, 2020  
DOI:10.11981/j.issn.1000-6842.2021.02.09
Key Words:micro/nano lignin;surfactant;application
Fund Project:2018年辽宁省高等学校创新人才项目;国家留学基金委(201708210342)。
Author NameAffiliationPostcode
CHEN Kai School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, Liaoning Province, 116034
Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian, Liaoning Province, 116034 
116034
ZHANG Jiaolong School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, Liaoning Province, 116034
Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian, Liaoning Province, 116034 
116034
QI Yungeng School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, Liaoning Province, 116034
Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian, Liaoning Province, 116034 
116034
LI Haiming School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, Liaoning Province, 116034
Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian, Liaoning Province, 116034 
116034
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Abstract:
      Micro/nano lignin was prepared by self-assembly method using alkaline lignin as raw material and different surfactant solutions as solvents. The optimal pH value, temperature, and alkaline lignin addition for the preparation of micro/nano lignin under different surfactant solutions were preliminarily discussed. The micro/nano lignin was characterized by nano-particle size and Zeta potential analyzer, scanning electron microscope, and Fourier transform infrared spectroscopy. The results showed that the average particle size of micro/nano lignin prepared by dodecyl sulfate could reach to 94.7 nm. The absorbance and transmittance of the mixture of the prepared micro/nano lignin and commercial face cream were measured by using ultraviolet-visible absorption spectrum, and it was found that the absorbance of the mixture significantly improved, while the transmittance reduced, indicating the mixture was of good ultraviolet protection capability.
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