Authors
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Khonakdar, H. A. ; Jafari, S.H. ; Yavari, A. ; Asadinezhad, A. ; Wagenknecht, U.
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Title
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Rheology, morphology and estimation of interfacial tension of LDPE/EVA and HDPE/EVA blends
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Date
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01.04.2005
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Number
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15847
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Abstract
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Rheological characteristics and morphology of low-density polyethylene (LDPE) /ethylene vinyl acetate copolymer (EVA) and high-density polyethylene (HDPE)/EVA blends were compared. Morphological examinations clearly reveal a two-phase morphology in which the LDPE/EVA blends have smaller dispersed domain size than HDPE/EVA Furthermore, LDPE/EVA shows a finely interconnected morphology at 50wt% of EVA while HDPE/EVA exhibits a coarse co-continuous morphology at the same composition. The morphological observations can be attributed to the lower viscosity ratio and lower interfacial tension in the LDPE/EVA system. The Palierne model also successfully fits to the experimental data giving higher values for interfacial tension of HDPE/EVA system as compared to LDPE/EVA.
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Publisher
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Polymer Bulletin
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Wikidata
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Citation
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Polymer Bulletin 54 (2005) 75-84
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DOI
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https://doi.org/10.1007/s00289-005-0365-6
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Tags
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