Improving tensile strength and toughness of melt processed polyamide 6/multiwalled carbon nanotube composites by in situ polymerization and filler surface functionalization

Corresponding Author

Hua Deng

[email protected]

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

College College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China===Search for more papers by this author

Emiliano Bilotti,

Emiliano Bilotti

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

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Rui Zhang,

Rui Zhang

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

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Ke Wang,

Ke Wang

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

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Qin Zhang,

Qin Zhang

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

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Ton Peijs,

Ton Peijs

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

Eindhoven Polymer Laboratories, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands

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Qiang Fu,

Corresponding Author

Qiang Fu

[email protected]

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

College College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China===Search for more papers by this author

Hua Deng,

Corresponding Author

Hua Deng

[email protected]

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

College College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China===Search for more papers by this author

Emiliano Bilotti,

Emiliano Bilotti

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

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Rui Zhang,

Rui Zhang

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

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Ke Wang,

Ke Wang

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

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Qin Zhang,

Qin Zhang

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

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Ton Peijs,

Ton Peijs

Centre for Materials Research, School of Engineering and Materials Science, Queen Mary University of London, E1 4NS London, United Kingdom

Eindhoven Polymer Laboratories, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands

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Qiang Fu,

Corresponding Author

Qiang Fu

[email protected]

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China

College College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 Sichuan, China===Search for more papers by this author

First published: 11 October 2010

https://doi.org/10.1002/app.33140

Citations: 19

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Abstract

The effect of processing method and condition on the dispersion status of multiwalled carbon nanotubes (MWCNTs), and mechanical properties of the MWCNT/polyamide 6 (PA6) composites are investigated. Different melt processing conditions are used to dilute the master batch produced by melt process or in situ polymerization. Both MWCNTs and carboxyl group functionalized MWCNTs (MWCNTs-COOH) are compounded with PA6 at different loadings (0.1, 0.25, 0.5, and 0.75 wt %) to study the effect of chemical modification of MWCNTs on the mechanical properties of the final composites. It is demonstrated that chemical modification of MWCNTs has a positive effect on the strength of the composites as an increase of 5–10 MPa was observed. More importantly, a near 5 MPa increase in strength and more importantly, a maximum of 138% increase in strain at break were observed for the composites produced by in situ polymerization, indicating a toughening and strengthening effect of CNT on the composites. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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5 April 2011

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Improving tensile strength and toughness of melt processed polyamide 6/multiwalled carbon nanotube composites by in situ polymerization and filler surface functionalization

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Improving tensile strength and toughness of melt processed polyamide 6/multiwalled carbon nanotube composites by in situ polymerization and filler surface functionalization

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