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Correlation between free-volume parameters and physical properties of polyethylene-nitrile rubber blend

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Abstract

Positron annihilation lifetime spectroscopy (PALS) was used to study the immiscibility of a polar nitrile rubber (NBR) that had been blended with pure and waste, low- and high-density polyethylene (PE). The effect of the weight percent of the rubber added to the PE was also investigated. It was found that a complicated variation (positive and negative) in both free-volume parameters (τ3 and I 3) from the values of the initial polymers forms an immiscible blend. These results are supported by a significant broadening in the free-volume hole size distributions. This has been interpreted in terms of interfacial spaces created between the boundaries of the two phases. Furthermore, a correlation was established between the free-volume parameters (τ3 and I 3) and the electrical and mechanical properties of the before mentioned polymer blends as a function of the weight percent of waste PE.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Ain Shams University, Cairo, Egypt

    E. Gomaa, N. Mostafa & M. Mohsen

  2. Petrochemical Department, Petroleum Research Institute, Nasser City, Cairo, Egypt

    M. Mohammed

Authors
  1. E. Gomaa
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  2. N. Mostafa
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  3. M. Mohsen
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  4. M. Mohammed
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Gomaa, E., Mostafa, N., Mohsen, M. et al. Correlation between free-volume parameters and physical properties of polyethylene-nitrile rubber blend. J. of Materi Eng and Perform 13, 583–587 (2004). https://doi.org/10.1361/10599490420593

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  • DOI: https://doi.org/10.1361/10599490420593

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