Effect of microcrystalline cellulose on mechanical property and shape memory property of water-borne epoxy
ISSN: 0369-9420
Article publication date: 28 March 2022
Issue publication date: 8 December 2022
Abstract
Purpose
This paper aims to study the effect of microcrystalline cellulose (MCC) on the mechanical property and shape memory property of water-borne epoxy (WEP).
Design/methodology/approach
In the present study, the MCC/WEP composites were successfully prepared by melt-blending, freeze-drying and hot-pressing. The mechanical property tests were performed using a tensile test instrument (Instron Corp, Norwood, Massachusetts, USA). dynamic mechanical analysis Q800 was performed to analyze the sample’s dynamic mechanics. The thermal–mechanical cycle tests performed on a thermal mechanical analysis (TMA) Q400 in dynamic TMA mode enabled to analysis of the shape memory properties of the MCC/WEP composites.
Findings
The results showed that the inclusion of 2 wt.% MCC led to significant improvements in tensile strength and modulus of the composites, with tensile strength increasing by 33.2% and modulus expanding by 65.0%. Although the inclusion of the MCC into WEP enhanced the shape memory property, the MCC/WEP composites still maintained good shape memory fixity and shape memory recovery ratio of more than 95.0%.
Originality/value
This study has a significant reference value for improving the mechanical properties of WEP and other water-borne shape memory polymers.
Keywords
Acknowledgements
This work was supported by National Training Programs of Innovation and Entrepreneurship for Undergraduates (Grant No. 202110338004) and China Postdoctoral Science Foundation (Grant No. 2021M692864), and the authors thank MD Zahidual Islam for help in the English checking of the manuscript.
Citation
Chen, X., Wang, W., Chen, S. and Dong, Y. (2022), "Effect of microcrystalline cellulose on mechanical property and shape memory property of water-borne epoxy", Pigment & Resin Technology, Vol. 51 No. 6, pp. 641-648. https://doi.org/10.1108/PRT-06-2021-0059
Publisher
:Emerald Publishing Limited
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