Effects of the Blend Ratio and Operating Conditions (T and P) on the Thermal and Mechanical Properties of Polymer (EVA-113/Nitrile-Butadiene Rubber) Blends Prepared by Supercritical CO2
Vener Khairutdinov, Ilnar Khabriev, Rafail Khuzakhanov, Ruslan Garipov, Lenar Yarullin and Ilmutdin Abdulagatov*,
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引用次数: 0
Abstract
The paper presents the results of an experimental study of the solubility of an ethylene-vinyl acetate copolymer (EVA-113) and nitrile-butadiene rubber (NBR-18) in organic solvents (toluene, chloroform, and dichloromethane) in the temperature range from 308 to 373 K at atmospheric pressure. The codispersion of EVA-113 and NBR-18 polymers has been performed in the pressure range from 8.0 to 25 MPa at temperatures between 313 and 333 K using the solution enhanced dispersion by supercritical fluids (SEDS) method. The crystallization kinetics and phase transformations in the polymer blends, obtained by blending in a melt and using the supercritical SEDS methods (prepared by supercritical CO2), were studied and compared. The effects of the EVA-113/NBR-18 ratio and operating conditions (T and P) on the thermal (heat of fusion) and mechanical (tensile strength and relative elongation) characteristics of obtained polymer blends were studied. It has been illustrated that the use of the SEDS technique with the conventional ratio of components of the EVA-113/NBR-18 blend makes it possible to obtain thermoplastic elastomer whose properties are superior to materials obtained by blending in a melt.
期刊介绍：
The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.
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