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Effect of High Pressure Homogenization Treatment on Structure and Properties of Soybean Residue Cellulose Nanofibers
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Author NameAffiliation
Peiyi Li College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China
State Key Laboratory of Pulp and Paper Engineering , South China University of Technology , Guangzhou, Guangdong Province, 510640, China
Key Laboratory of Paper Based Functional Materials of China National Light Industry, Xi’an, Shaanxi Province, 710021, China
Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi’an, Shaanxi Province, 710021, China 
Yumeng Wang College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China 
Binyao Zhou Department of Chemical and Paper Engineering, Western Michigan University, Kalamazoo, Michigan, 49008, USA 
Qingqing Hou College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China 
Hezhen Liu College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China 
Haozhe Lei College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China 
Boxing Jian College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China 
Xinping Li College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021, China
Key Laboratory of Paper Based Functional Materials of China National Light Industry, Xi’an, Shaanxi Province, 710021, China
Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi’an, Shaanxi Province, 710021, China 
Fund Project:This work was supported by State Key Laboratory of Pulp and Paper Engineering (201819), the project of Shaanxi Provincial Department of Education Key Laboratory Research Open Fund (Grant No. 17JS017), and the project of Shaanxi University of Science and Technology Research Initial Fund (Grant No. BJ15-29).
 
Abstract:To reduce the adverse effects of non-cellulose materials on subsequent homogenization, the effects of a high-pressure homogenization treatment on the structure and properties of cellulose nanofibers (CNF) prepared by acid treatment of soybean residue were studied. The effects of the number of homogenization step on the microfibrillation degree, crystalline structure and mechanical properties of the soybean residue were analyzed by SEM, FT-IR, XRD, TG and DTG. The results showed that an increase in the number of homogenization steps led to an increase in the degree of microfibrillation, a more uniform distribution of the CNF diameter, and an increase in the crystallinity of CNF. However, but when the number of homogenization steps exceeded 15, the rate of change decreased, and the crystallinity of CNF decreased. As the number of homogenization steps increased, the average degree of polymerization and average molecular weight of CNF decreased continuously, and after 15 homogenization steps, their rate of change also decreased. Therefore, 15 steps of high-pressure homogenization represented a suitable number of steps to prepare the soybean residue CNF with an average diameter of 15 nm.
keywords:soybean residue  cellulose nanofibers  high pressure homogenization  characteristics
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