Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80081
Title: Low-temperature baroplastic processing of graphene-based polymer composites by pressure-induced flow
Authors: Tang, W
He, CE
Wang, Y
Yang Y 
Tsui, CP 
Issue Date: 2014
Publisher: Institute of Physics Publishing
Source: IOP conference series : materials science and engineering, 2014, v. 62, no. 1, 12023, p. 1-10 How to cite?
Journal: IOP conference series : materials science and engineering 
Abstract: Two-stage emulsion polymerization was employed to synthesize nanoparticles consisting of a low glass transition temperature core of poly(n-butyl acrylate) (PBA) and a glassy poly(methyl methylacrylate) (PMMA) shell. Incorporation of graphene oxide (GO) into the PBA-PMMA latex produced GO/PBA-PMMA composites after demulsification and graphene/PBA-PMMA composites after chemical reduction of GO. The as-prepared powdery materials were processed into thin films by compression molding at room temperature as the result of a pressure-induced mixing mechanism of microphase-separated baroplastics. The presence of oxygen-containing groups for GO sheets contributed to better dispersion and stronger interface with the matrix, thereby showing greater reinforcement efficiency toward polymers compared to graphene sheets. In addition, both Young's modulus and yield strength for all materials increased with applied pressure and processing time due to better flowability, processability and cohesion at higher pressure and longer time. Low-temperature processing under pressure is of significance for energy conservation, recyclability and environmental protection during plastic processing.
Description: 2014 Global Conference on Polymer and Composite Materials, PCM 2014, Ningbo, 27-29 May 2014
URI: http://hdl.handle.net/10397/80081
ISSN: 1757-8981
EISSN: 1757-899X
DOI: 10.1088/1757-899X/62/1/012023
Rights: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (https://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Published under licence by IOP Publishing Ltd
The following publication Tang, W., He, C. -., Wang, Y., Yang, Y., & Tsui, C. P. (2014). Low-temperature baroplastic processing of graphene-based polymer composites by pressure-induced flow. IOP conference series : materials science and engineering, 2014, 62(1), 12023, 1-10 is available at https://dx.doi.org/10.1088/1757-899X/62/1/012023
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