Abstract
The effects of mixing tetracontane (TC) on melting and crystallization processes of polyethylene (PE) were studied at elevated pressures up to 500 MPa, by high pressure differential thermal analysis (DTA). The high pressure phase of PE shifts to higher pressures and temperatures with TC content in the mixture. However, the high pressure phase disappears when the weight fraction of PE is less than 0.7 at 500 MPa. Extended chain crystal is not formed in the mixture of the weight fraction of PE below 0.5. In the weight fraction between 1.0 and 0.5, Tm of thick PE crystal decreases with TC content. The decreasing rate of melting and crystallization temperatures of the binary mixture of PE and TC remained unchanged with pressure up to 350 MPa.
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Nakafuku, C., Yasuniwa, M. & Tsubakihara, S. Effects of Mixing Tetracontane on the Melting and Crystallization of Polyethylene under High Pressure. Polym J 22, 110–119 (1990). https://doi.org/10.1295/polymj.22.110
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DOI: https://doi.org/10.1295/polymj.22.110