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Kinetic Study on the Isothermal and Nonisothermal Crystallization of Monoglyceride Organogels
Joint Authors
Meng, Zong
Yang, Lijun
Geng, Wenxin
Yao, Yubo
Wang, Xingguo
Liu, Yuanfa
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The isothermal and nonisothermal crystallization kinetics of monoglyceride (MAG) organogels were studied by pulsed nuclear magnetic resonance (pNMR) and differential scanning calorimetry (DSC), respectively.
The Avrami equation was used to describe the isothermal crystallization kinetics and experimental data fitted the equation fairly well.
Results showed that the crystal growth of MAG organogels was a rod-like growth of instantaneous nuclei at higher degrees of supercooling and a plate-like form with high nucleation rate at lower degrees of supercooling.
The exothermic peak in nonisothermal DSC curves for the MAG organogels became wider and shifted to lower temperature when the cooling rate increased, and nonisothermal crystallization was analyzed by Mo equation.
Results indicated that at the same crystallization time, to get a higher degree of relative crystallinity, a higher cooling rate was necessary.
The activation energy of nonisothermal crystallization was calculated as 739.59 kJ/mol according to the Kissinger method.
Therefore, as the results of the isothermal and nonisothermal crystallization kinetics for the MAG organogels obtained, the crystallization rate, crystal nucleation, and growth during the crystallization process could be preliminarily monitored through temperature and cooling rate regulation, which laid the foundation for the real industrial manufacture and application of the MAG organogels.
American Psychological Association (APA)
Meng, Zong& Yang, Lijun& Geng, Wenxin& Yao, Yubo& Wang, Xingguo& Liu, Yuanfa. 2014. Kinetic Study on the Isothermal and Nonisothermal Crystallization of Monoglyceride Organogels. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1048482
Modern Language Association (MLA)
Meng, Zong…[et al.]. Kinetic Study on the Isothermal and Nonisothermal Crystallization of Monoglyceride Organogels. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1048482
American Medical Association (AMA)
Meng, Zong& Yang, Lijun& Geng, Wenxin& Yao, Yubo& Wang, Xingguo& Liu, Yuanfa. Kinetic Study on the Isothermal and Nonisothermal Crystallization of Monoglyceride Organogels. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1048482
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048482