Publication: Raman investigation of thermoplastic vulcanizates based on hydrogenated natural rubber/polypropylene blends
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2017-02-01
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01429418
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2-s2.0-84995960283
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Mahidol University
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SCOPUS
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Polymer Testing. Vol.57, (2017), 107-114
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Korn Taksapattanakul, Tulyapong Tulyapitak, Pranee Phinyocheep, Polphat Ruamcharoen, Jareerat Ruamcharoen, Fabienne Lagarde, Mathieu Edely, Philippe Daniel Raman investigation of thermoplastic vulcanizates based on hydrogenated natural rubber/polypropylene blends. Polymer Testing. Vol.57, (2017), 107-114. doi:10.1016/j.polymertesting.2016.11.016 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/42272
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Raman investigation of thermoplastic vulcanizates based on hydrogenated natural rubber/polypropylene blends
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© 2016 Elsevier Ltd Raman spectroscopy including mapping technique appears as a powerful technique for the characterization of polymer blends like thermoplastic elastomers (TPEs) and thermoplastic vulcanizates (TPVs). The Raman spectra of polymers blends such as natural rubber/polypropylene (NR/PP) and 65% hydrogenated natural rubber/polypropylene (65%HNR/PP) were identified and the phase distribution was determined. The study was driven for the same type of blends in TPEs state and TPVs state obtained after to 2 different processes, either peroxide cure or sulfur cure. The morphology of TPEs and TPVs obtained by Raman spectroscopy were compared and confirmed using scanning electronic microscopy. Raman mapping shows that the phase morphology of NR/PP, 65%HNR/PP, were characterized as continuous rubber phase morphology of the thermoplastic elastomers (TPEs) and a fine dispersion of cross-linked rubber phase in a continuous matrix of the thermoplastic vulcanizates (TPVs). Raman spectroscopy is demonstrated to be a reference to determine the content ratio of each component in the TPVs. Moreover, Raman mapping could be used to calculate the phase size of cross-linked rubber phase dispersed in the thermoplastic vulcanizates (TPVs).