Preparation of Cu/OMMT/LLDPE nanocomposites and synergistic effect study of two different nano materials in polymer matrix |
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Authors: | Bing Xue Fangfei Li Yanping Xing Mengmeng Sun Darui Liu Yinshan Jiang |
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Affiliation: | (1) Key Laboratory of Automobile Materials of Ministry of Education and Department of Materials Science and Engineering, Jilin University, Changchun, 130025, China;(2) College of Animal Science and Veterinary Medicine Jilin University, 5333 Xi‘an Road, Changchun, 130062, China; |
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Abstract: | Cu/OMMT (organo-montmorillonite)/LLDPE (linear low-density polyethylene) nanocomposites were prepared via melt mixing combined
with melt extruding process. X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectra, scanning electron microscope
(SEM), and transmission electron microscopy (TEM) were employed to characterize the resultant nanocomposites. The results
showed that the OMMT layers were exfoliated and the nano-Cu particles were distributed uniformly in the polymer matrix. And
the introduction of nanofiller into LLDPE matrix had little effect on the crystallinity of the polymer. The salt spray tests
showed that OMMT and nano-Cu could improve the anticorrosion properties of LLDPE matrix, respectively. And the coexistence
of OMMT and nano-Cu in Cu/OMMT/LLDPE nanocomposites could produce a synergistic effect on enhancing the anticorrosion properties.
Furthermore, the co-incorporation of OMMT and nano-Cu into the polymer matrix also increased the thermal-oxidative stability
and mechanical properties of LLDPE matrix significantly, as compared with the Cu/LLDPE and OMMT/LLDPE nanocomposites due to
the synergistic effect. The bactericidal properties evaluation showed that the bactericidal ability of Cu/OMMT/LLDPE increases
with nano-Cu content effectively. |
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