Theoretical Foundations of Chemical Engineering

, Volume 53, Issue 1, pp 115–121 | Cite as

Modified Correlation for Low-Density Polyethylene (LDPE) Solubility in Several Organic Solvents

  • A. J. HadiEmail author
  • K. Bin Yusoh
  • G. J. Hadi
  • G. F. Najmuldeen
  • S. F. Hasany


A nonideal solubility equation is developed based on crystallinity and is applied to model the solid-liquid equilibrium for crystalline low-density polyethylene (LDPE) in a set of pure and blended nonpolar organic solvents experimentally at 338–379 K and atmospheric pressure. The polymer concentration ranges from 0.5 to 35 g in 100 mL solvent. Modified correlation based on the heat of fusion and the melting temperature was attained by using SSPS software based on experimental data. The ideal solubility and nonideal solubility equations were applied with two different regular methods for activity coefficient calculation, which do not correlate with the experimental data in large. The data collected from developed nonideal equation and modified correlation were found in good agreement with experimental data.


low-density polyethylene (LDPE) solid–liquid equilibrium nonideal equation activity coefficient 


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. J. Hadi
    • 1
    Email author
  • K. Bin Yusoh
    • 2
  • G. J. Hadi
    • 3
  • G. F. Najmuldeen
    • 2
  • S. F. Hasany
    • 2
  1. 1.Chemical Engineering Department, Faculty of Engineering, Soran UniversitySoran, Erbil, Kurdistan regionIraq
  2. 2.Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun RazakGambang, Kuantan, PahangMalaysia
  3. 3.Al Dour Technical Institution, Technical Education OrganizationTikrit, SalahalddenIraq

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