Journal
CHEMOSPHERE
Volume 307, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.136050
Keywords
Hansen solubility; Model analysis; Waste; Polyethylene terephthalate (PET); Membrane
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Funding
- National University of Sciences and Technology, H-12, Islamabad, Pakistan
- Deanship of Scientific Research at King Khalid University [R.G.P. 2/189/43]
- EU CZ Operational Programme Research and Development, Education, Priority1 [CZ.02.1.01/0.0/0.0/15_003/0000456]
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The massive increase in the use of PET plastic bottles has posed a challenge for waste plastic disposal and environmental concerns. Reusing this waste through solvent-based recycling process provides an eco-friendly solution to eliminate waste plastic and convert them into high quality products. A MATLAB program named HSPs-TPT was designed to evaluate solvent dissolving power and provide information on PET polymer solubility in different solvents.
The massive increase in the use of PET plastic bottles has raised the challenge of accumulated waste plastics disposal and its related environmental concerns. Reusing this plastic waste through a solvent-based recycling process seems to be an eco-friendly solution for eliminating waste plastic and converting them into high quality products. The selection of solvent with its temperature requirement for the dissolution of polymeric materials is crucial in the solvent-based recycling process. Therefore, an innovative MATLAB program named HSPs-TPT was designed and constructed in this work to evaluate the dissolving power of solvents. Through this program, the solubility of the waste PET polymer was examined in thirteen (13) different solvents at different temperatures. As a results, the degree of waste PET polymer dissolution in the solvents was presented as the polymer-solvent solubility diagram, which provided the information about the relative energy difference (RED) change with the temperature rise. The program also provided the temperature range effective for the dissolution of PET by indicating the minimum and maximum solubility point for each solvent, which was further validated by the experimental data found in the literature. The proposed MATLAB program can numerically analyse the solubility of a polymer in different solvents in a short time for the recycling process and fabrication of different value-added plastic products such as polymer monoliths and membrane filters.
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