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| Characterization of the Relationship Between MCC Particle Morphology and Powder Flowability by Shape Factor |
| Received:September 04, 2019 |
| DOI：10.11980/j.issn.0254-508X.2019.12.001 |
| Key Words:microcrystalline cellulose micromorphology flowability shape factor |
| Fund Project:国家重点研发计划项目
2017YFB0307901
;
陕西省重点研发计划项目
2017ZDXM-SF-090
国家重点研发计划项目（2017YFB0307901）；陕西省重点研发计划项目（2017ZDXM-SF-090）。 |
| Author Name | Affiliation | | LI Jinbao | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 | | MA Feiyan | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 | | XIU Huijuan | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 | | ZHAO Xin | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 | | FENG Pan | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 | | YANG Xue | College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Shaanxi University of Science &
Technology, Xi’an, Shaanxi Province,710021 |
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| Abstract:The relationship between microcrystalline cellulose (MCC) morphology and MCC powder flowability is difficult to quantitatively characterize due to the MCC particles are irregular in morphology. In this study, the shape factors (circularity, elongation, compactness, solidity) were used to quantitatively characterize the micro morphology of six types of MCC powder particles. After comparing the differences in micromorphology of different MCCs, the correlation between the shape factor with most significant difference and other shape factors was discussed, and the numerical relationship between it and MCC flowability was established. The results showed that the difference in circularity among the four shape factors of MCC particles with greatest difference in flowability was the most significant. Regardless of the flowability, there was a certain degree of positive or negative correlation between circularity and other shape factors. The concentrated distribution of circularity led to the excellent flowability. There was a linear relationship between the circularity and the repose angle of the MCC, the repose angle was used to characterize flowability. |
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