Epoxy shape‐memory polymer reinforced by thermally reduced graphite oxide: Influence of processing techniques |
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| Authors: | Lei Chen Wenbing Li Yanju Liu Jinsong Leng |
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| Affiliation: | 1. Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), Harbin, People's Republic of China;2. Centre for Composite Materials, Science Park of Harbin Institute of Technology (HIT), Harbin, People's Republic of China |
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| Abstract: | In this article, epoxy shape‐memory polymer (ESMP) reinforced with 1 wt % thermally reduced graphite oxide (TrGO) was fabricated by solution blending and three‐roll mill (TRM) mixing, respectively. Both blending techniques allowed a uniform TrGO dispersion in ESMP matrix, and the TRM mixing lead to an exfoliation of the TrGO worms. Compared with pristine ESMP, the TrGO/ESMP composites showed 36.4–41.1% increase in Young's modulus and 38.1–44.1% improvement in tensile strength. The TrGO/ESMP composite fabricated by TRM mixing had a T5% (the temperature where the material lost 5% of its initial weight) 16.4°C higher than pure ESMP. Compared with pure ESMP, a significant improvement of recovery force by 84.4% and 311.1% was obtained by TrGO/ESMP composite fabricated by solution blending and TRM mixing, respectively. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 42502. |
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| Keywords: | porous materials properties and characterization synthesis and processing thermosets |
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