Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 8, Pages 2681-2689Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14393g
Keywords
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Funding
- Converging Research Center Program through the Ministry of Science, ICT & Future Planning [2013K000404]
- National Research Foundation (NRF)
- Ministry of Education of Korea [NRF-2013R1A1A2011608]
- Chonbuk National University
- National Research Foundation of Korea [2011-50380, 2013R1A1A2011608] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A synergetic effect of multiwall carbon nanotube (MWCNT) attached pre-stitched graphene oxide (GO) on the mechanical properties of its linear low density polyethylene (LLDPE) composite was demonstrated. The reduction, functionalization and stitching of GO occurred simultaneously with the amine (-NH2) functionalities of ethylenediamine through nucleophilic addition and condensation reaction. The structural features of MWCNT attached pre-stitched GO with ethylenediamine (EtGO) (EtGO-MWCNT) hybrids were confirmed by X-ray diffraction, Fourier transform infrared and Raman spectroscopy. The EtGO-MWCNT hybrid filled LLDPE composite was prepared by solution mixing. The tensile strength of the EtGO-MWCNT/LLDPE composite with 1 wt% loading was enhanced by 148.7% compared to that of the neat LLDPE, which is much higher than those of O-MWCNTs, GO and EtGO filled composites. The enhanced properties of the EtGO-MWCNT/LLDPE composites were attributed to the homogeneous dispersion and the enhanced interfacial interaction with the matrix due to the multi-dimensional structure of EtGO-MWCNT. The EtGO-MWCNT/LLDPE composite also showed better dimensional stability than those of O-MWCNTs, GO, and EtGO filled composites.
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