Journal
PROCESSES
Volume 8, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/pr8030286
Keywords
natural rubber; maleated natural rubber; maleic anhydride; Halloysite Nanotubes
Categories
Funding
- Prince of Songkla University [SAT590650S]
- Research and Development Office, Prince of Songkla University
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In this study, maleic anhydride (MA) grafted natural rubber (NR), known as maleated natural rubber (MNR), was melt-prepared with the MA content varied within 1-8 phr. MNR was used as the main matrix, with Halloysite Nanotubes (HNT) as a filler, in order to obtain composites with improved performance. The compounds were investigated for their filler-filler interactions by considering their Payne effect. On increasing the MA content, scorch and cure times increased along with maximum torque and torque difference. The MNR with 4 phr of MA exhibited the least filler-filler interactions, as indicated by the retention of the storage modulus after applying a large strain to the filled compound. This MNR compound also provided the highest tensile strength among the cases tested. It is interesting to highlight that MNR, with an appropriate MA content, reduces filler-filler interactions, and, thereby, enhances the HNT filler dispersion, as verified by SEM images, leading to improved mechanical and dynamical properties.
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