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Preparation of Silicified Microcrystalline Cellulose by Sol In-situ Deposition and Its Powder Properties
Received:August 24, 2021  
DOI：10.11980/j.issn.0254-508X.2021.11.008
Key Words:sol in-situ deposition  silicified microcrystalline cellulose  SiO2  ethyl orthosilicate
Fund Project:陕西省重点研发项目（2017ZDXM-SF-090）。
Author NameAffiliationPostcode
XIU Huijuan National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
WANG Zhi National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
ZHOU Zhaoxiang Zhejiang Shunpu New Material Technology Co.， Ltd.， Quzhou， Zhejiang Province， 324400 324400
LI Jinbao* National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
ZHAO Xin National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
LI Jingui National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
ZHENG Xinyi National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
BAI Yurou National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
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Abstract:In this study， sol in-situ deposition method was used to form SiO2 on the surface of microcrystalline cellulose （MCC） to prepare silicified microcrystalline cellulose （SMCC）. The results showed that as the amount of isopropanol in the co-solvent increased， the particle size of SiO2 decreased and the particle size distribution became more uniform. When isopropanol was used as co-solvent and ethyl orthosilicate was added at 0.8 mg/L， self-made SMCC had the best performance. The surface of self-made SMCC was basically evenly covered by SiO2， and the specific surface area of SMCC was larger than that of imported SMCC. There was no significant difference in the overall particle size distribution of self-made SMCC and raw MCC， but the comprehensive performance indicators of self-made SMCC were better than raw MCC and domestic SMCC， and were close to imported SMCC.
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