Journal
POLYMER TESTING
Volume 28, Issue 5, Pages 548-559Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2009.04.004
Keywords
Halloysite nanotubes; Ethylene propylene diene monomer; Nanocomposites; Maleic anhydride; Transmission electron microscopy
Funding
- USM [6035261]
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Ethylene propylene diene monomer grafted with maleic ahydride (MAH-g-EPDM) was prepared by peroxide-initiated melt grafting of MAH onto EPDM using a HAAKE internal mixer at 180 degrees C and 60 rpm for 5 min. The effect of MAH-g-EPDM compatibilizer on the interactions, and tensile and morphological properties of halloysite nanotubes (HNTs) filled EPDM nanocomposites; was investigated. The tensile properties of the nanocomposites were influenced by two major factors. The hydrogen bonding between MAH-g-EPDM and HNTs, which was confirmed by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), as well as the formation of EPDM-rich and HNT-rich areas, are the dominant effects on the tensile strength of the narrocomposites at low and high HNT loading, respectively. It was found that the cure time (t(90)), maximum torque NO and minimum torque NO of the compatibilized nanocomposites were increased after adding MAH-g-EPDM. The reinforcement mechanism of the compatibilized and uncompatibilized EPDM/HNT nanocomposites was also investigated based on morphological observations of the narrocomposites. (C) 2009 Elsevier Ltd. All rights reserved.
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