Volume 139, Issue 42 e53028
RESEARCH ARTICLE

Mechanical properties and microstructure of polychlorotrifluoroethylene toughened by polyamide 11 based on intermolecular interaction

Yi Li

Yi Li

Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, P. R. China

Contribution: Conceptualization (supporting), Data curation (lead), Formal analysis (lead), ​Investigation (lead), Methodology (lead), Writing - original draft (lead), Writing - review & editing (equal)

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Jihong Wen

Jihong Wen

Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, P. R. China

Contribution: Formal analysis (supporting), ​Investigation (supporting), Writing - original draft (supporting)

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Tianyu Wu

Tianyu Wu

Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, P. R. China

Contribution: Methodology (supporting), Supervision (supporting), Writing - review & editing (equal)

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Cheng Cao

Cheng Cao

Technology R&D Center, Shanghai Huayi 3F New Materials Co., Ltd, Shanghai, P. R. China

Contribution: Methodology (supporting), Resources (equal)

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Xiaoyu Meng

Xiaoyu Meng

Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, P. R. China

Contribution: Supervision (supporting), Writing - review & editing (supporting)

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Hai-Mu Ye

Corresponding Author

Hai-Mu Ye

Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing, P. R. China

Correspondence

Hai-Mu Ye, Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, P. R. China.

Email: [email protected]

Contribution: Conceptualization (lead), Funding acquisition (lead), Methodology (equal), Project administration (lead), Resources (lead), Supervision (lead), Writing - original draft (supporting), Writing - review & editing (lead)

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First published: 16 August 2022

Funding information: National Natural Science Foundation of China, Grant/Award Number: 21674128; Science Foundation of China University of Petroleum, Beijing, Grant/Award Number: 2462020YXZZ019

Abstract

Polychlorotrifluoroethylene (PCTFE) is a promising candidate for cryogenic storage and transportation materials in clean energy industry. But, how to improve its toughness without scarification other performance is still challenging. In this study, the immiscible PA11 is introduced into PCTFE matrix as toughening agent based on a strategy of enhanced interfacial effect. As the incorporation of PA11 increased from 0 to 20 wt%, the toughness of the PCTFE/PA11 shows a trend of first increasing and then decreasing, which reaches the optimal performance with 5 wt% PA11. The elongation at break and impact strength are respectively increased by ~3 and ~1.9 times without obvious reduction of other mechanical performance. Meanwhile, PA11 could enhance the primary nucleation and crystallization ability of PCTFE. With further detailed information of microstructures and Fourier infrared spectra, a multieffect synergistic toughening mechanism based on rigid particle and intermolecular interaction has been elucidated. Furthermore, the toughening of PA11 on PCTFE at ultra-low temperature of −196°C is confirmed.

CONFLICT OF INTEREST

The authors declare that they have no conflict of interest in the publication of this article.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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