NDLI: Blending of the Thermodynamically Incompatible Polyvinyl Chloride and High-Pressure Polyethylene Polymers Using a Supercritical Fluid Anti-Solvent Method (SEDS) Dispersion Process.

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Blending of the Thermodynamically Incompatible Polyvinyl Chloride and High-Pressure Polyethylene Polymers Using a Supercritical Fluid Anti-Solvent Method (SEDS) Dispersion Process.

Content Provider	Europe PMC
Author	Khairutdinov, Vener F. Khabriev, Ilnar Sh. Gumerov, Farid M. Khuzakhanov, Rafail M. Garipov, Ruslan M. Yarullin, Lenar Yu. Abdulagatov, Ilmutdin M.
Editor	Wyman, Ian Voznyak, Yuri Zaïri, Fahmi
Copyright Year	2023
Abstract	The experimental solubility data of polyvinyl chloride (PVC) and high-pressure polyethylene (HPPE) in organic solvents (toluene, dichloromethane, and chloroform) at temperatures ranging from 308.15 to 373.15 K at atmospheric pressure are reported in the present paper. The solubility of the polymers (PVC and HPPE) in organic solvents (toluene, dichloromethane, and chloroform) was studied at temperatures between 298 and 373 K. The supercritical SEDS dispersion of PVC and HPPE polymer blends at pressures between 8.0 and 25 MPa and at temperatures from 313 to 333 K are reported in the present work. The kinetics of crystallization and phase transformation in polymer blends obtained by blending in a melt, and using the supercritical SEDS method, have been studied. The effect of the HPPE/PVC ratio on the thermal and mechanical characteristics of the polymer blends has been studied. For all studied polymer blends and pure polymers obtained using the SEDS method, the heat of fusion ΔfusH exceeds the values obtained by blending in the melt by 1.5 to 5) times. The heat of fusion of the obtained polymer blends is higher than the additive value; therefore, the degree of crystallinity is higher, and this effect persists after heat treatment. The relative elongation decreases for all polymer blends, but their tensile strength increases significantly.
Journal	Polymers
Volume Number	15
PubMed Central reference number	PMC10180643
Issue Number	9
PubMed reference number	37177134
e-ISSN	20734360
DOI	10.3390/polym15091986
Language	English
Publisher	MDPI
Publisher Date	2023-04-22
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2023 by the authors.
Subject Keyword	polyvinyl chloride high-pressure polyethylene диcпepгиpoвaниe supercritical CO2 SEDS method
Content Type	Text
Resource Type	Article
Subject	Chemistry Polymers and Plastics

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