首页|Multi-walled CNT decoration by ZIF-8 nanoparticles: O-MWCNT@ZIF-8/epoxy interfacial, thermal–mechanical properties analysis via combined DFT-D computational/experimental approaches
Multi-walled CNT decoration by ZIF-8 nanoparticles: O-MWCNT@ZIF-8/epoxy interfacial, thermal–mechanical properties analysis via combined DFT-D computational/experimental approaches
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NSTL
Elsevier
? 2021 The Korean Society of Industrial and Engineering ChemistryHere, to fabricate an epoxy coating (EP) possessing premier mechanical and thermal features, a nanocomposite of oxidized multiwall nano carbon tube/ ZIF-8 (O-MWCNT@ZIF-8) was prepared through a one-step fabrication approach of ZIF-8 on the O-MWCNT surface through two-different hydrothermal and co-precipitation methods, that are labeled as O-MWCNT-ZIF-8-H/EP and O-MWCNT-ZIF-8-CO/EP, respectively. After introducing the prepared nanocomposite into the epoxy resin, DMTA and tensile tests were applied on the prepared coatings to identify the interactions between the EP/Particles and investigate the resultant thermomechanical properties of the final composites. It was indicated that through the incorporation of 0.15 wt.% of the prepared nanoparticles into the EP matrix, a remarkable enhancement could be achieved on its thermomechanical properties. It is also worth noting that the storage modulus showed a rise of about 7.5% and 1.1% and tensile strength increased about 70% and 40%, while Tg reduced about 12 °C and 16 °C in the case of O-MWCNT-ZIF-8-CO/EP and O-MWCNT-ZIF-8-H/EP samples, respectively, in comparison to the unmodified epoxy (Neat EP) sample. Moreover, the remaining weights of 75% and 77% for O-MWCNT-ZIF-8 compared with 82% for O-MWCNT at 600 °C evidenced the lower thermal stability of the ZIF-8 modified CNT.
NSTL
Elsevier
