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Self-nucleation Effect of Crystallization with Various Nucleating Agents.
- Source :
-
Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) . Dec2023, Vol. 41 Issue 12, p1912-1920. 9p. - Publication Year :
- 2023
-
Abstract
- In this work, the self-nucleation effect on crystallization was studied for polypropylene with various nucleating agents. The talc was employed to accelerate crystallization of monoclinic α-crystallites, while N, N′-dicyclohexyl-2,6-naphthalenedicarboxamide TMB-5 was used to accelerate the crystallization kinetics and also induce formation of trigonal β-crystallites. To induce self-nucleation effect, the occurrence criterion was assessed by the transition temperatures from various domains and the available temperature width. More importantly, the resulting influences of self-nucleation effect were quantified by the change of crystallization kinetics and the potential polymorphism variation. It was found that the α-nucleating agents of talc broadened the temperature window for inducing Domain II by elevating the transition temperature from Domain I to Domain II. Although β-nucleating agent (β-NA) of N, N′-dicyclohexyl-2,6-naphthalenedicarboxamide TMB-5 elevated cooling crystallization temperature obviously, the temperature window for Domain II was narrowed. It should be emphasized that in presence of β-NA TMB-5, the self-nucleation effect enhances the crystallization of α-crystallite, which show the competition with β-NA TMB-5. At last, the ternary PP/talc/TMB-5 blend was prepared with the same amounts of α-NA talc and β-NA TMB-5 and it exhibits a similar self-nucleation effect of crystallization, indicating the dominant role of β-NA TMB-5. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02567679
- Volume :
- 41
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Chinese Journal of Polymer Science (Springer Science & Business Media B.V.)
- Publication Type :
- Academic Journal
- Accession number :
- 173963956
- Full Text :
- https://doi.org/10.1007/s10118-023-3014-3