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GO-modified flexible polymer nanocomposites fabricated via 3D stereolithography

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journal contribution
posted on 29.11.2019 by CHA Tsang, Adilet Zhakeyev, Dennis Y. C. Leung, Jin Xuan
Graphene oxide (GO) induced enhancement of elastomer properties showed a great deal of potential in recent years, but it is still limited by the barrier of the complicated synthesis processes. Stereolithography (SLA), used in fabrication of thermosets and very recently in “flexible” polymers with elastomeric properties, presents itself as simple and user-friendly method for integration of GO into elastomers. In this work, it was first time demonstrated that GO loadings can be incorporated into commercial flexible photopolymer resins to successfully fabricate GO/elastomer nanocomposites via readily accessible, consumer-oriented SLA printer. The material properties of the resulting polymer was characterized and tested. The mechanical strength, stiffness, and the elongation of the resulting polymer decreased with the addition of GO. The thermal properties were also adversely affected upon the increase in the GO content based on differential scanning calorimetry and thermogravimetric analysis results. It was proposed that the GO agglomerates within the 3D printed composites, can result in significant change in both mechanical and thermal properties of the resulting nanocomposites. This study demonstrated the possibility for the development of the GO/elastomer nanocomposites after the optimization of the GO/“flexible” photoreactive resin formulation for SLA with suitable annealing process of the composite in future.

Funding

S-HKU702/15

EP/R012164/2

RSG\R1\180162

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Frontiers of Chemical Science and Engineering

Volume

13

Issue

4

Pages

736–743

Publisher

Springer

Version

VoR (Version of Record)

Rights holder

© The Author(s)

Publisher statement

This is a post-peer-review, pre-copyedit version of an article published in Frontiers of Chemical Science and Engineering. The final authenticated version is available online at: https://doi.org/10.1007/s11705-019-1836-x

Acceptance date

02/03/2019

Publication date

2019-09-23

Copyright date

2019

ISSN

2095-0179

eISSN

2095-0187

Language

en

Depositor

Deposit date: 29 November 2019

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