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Wang SW, Leng YT, Jiang J, Zheng GQ, Li Q. Competition between α and β Crystallization in Isotactic Polypropylene: Effect of Nucleating Agents Composition. INT POLYM PROC 2015. [DOI: 10.3139/217.3023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Based on the different nucleation ability, different contents and proportions of the mixed nucleating agents were melt compounded with pure isotactic polypropylene resins employed in this work, selective β nucleating agent was a compound of pimelic acid and calcium stearate, the α nucleating agent was a type of dibenzylidene sorbitol derivative. The competition attributed to the different type of interactions between a nucleating agent and isotactic polypropylene molecular chains during crystallization was investigated in this research. For a low content of the mixed nucleating agents used, α nucleation dominated the crystallization behavior of isotactic polypropylene, while with an increase of the content of the mixed nucleating agents, the situation was reversed and β nucleation became dominant. In the β dominated region, both of the molecular chain and segmental motions were various with different nucleating agent proportion. Thus, the content and proportion of the components of the nucleating agents were the critical factors in the competition during crystallization.
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Affiliation(s)
- S.-W. Wang
- National Center for International Joint Research of Micro-Nano Molding Technology , Zhengzhou University, Zhengzhou, Henan , PRC
| | - Y.-T. Leng
- College of Chemistry and Molecular Engineering , Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, Zhengzhou, Henan , PRC
| | - J. Jiang
- National Center for International Joint Research of Micro-Nano Molding Technology , Zhengzhou University, Zhengzhou, Henan , PRC
| | - G.-Q. Zheng
- National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University, Zhengzhou, Henan , PRC
| | - Q. Li
- National Center for International Joint Research of Micro-Nano Molding Technology , Zhengzhou University, Zhengzhou, Henan , PRC
- National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University, Zhengzhou, Henan , PRC
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Bárány T, Czigány T, Karger-Kocsis J. Application of the essential work of fracture (EWF) concept for polymers, related blends and composites: A review. Prog Polym Sci 2010. [DOI: 10.1016/j.progpolymsci.2010.07.001] [Citation(s) in RCA: 194] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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The enhanced nucleating ability of carbon nanotube-supported β-nucleating agent in isotactic polypropylene. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2194-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang L, Xie BH, Yang W, Yang MB. Grafted Polyolefin-Coated Synthetic Mica-Filled Polypropylene-co-ethylene Composites: A Study on the Interfacial Morphology and Properties. J MACROMOL SCI B 2010. [DOI: 10.1080/00222340903351395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Lei Wang
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Bang-Hu Xie
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Wei Yang
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Ming-Bo Yang
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu, Sichuan, People's Republic of China
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