Study of Phase Behavior of Aqueous Nano-Sized Dispersion of n-Eicosane (n-C20H42)

被引：0

作者：

Kuryakov, V. N. ^{[1
]}

Mrachkovskaya, D. A. ^{[1
,2
]}

Gudkova, E. G. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Oil & Gas Res Inst, Moscow 119333, Russia

[2] Dmitry Mendeleev Univ Chem Technol Russia, Moscow 125047, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2024年 / 98卷 / 14期

基金：

俄罗斯科学基金会;

关键词：

phase transitions; emulsions; phase change materials; PCM; light scattering; n-alkanes; rotator phases; ROTATOR PHASES; NORMAL-ALKANES; PARAFFIN; CRYSTALLIZATION; TRANSITIONS;

D O I：

10.1134/S0036024424702856

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Every year, the interest in obtaining new forms of phase change materials (PCM) and studying their physicochemical properties is growing. A topical task is to develop new experimental methods for studying the phase behavior of PCM. The paper presents the results of a study of the phase behavior of a nanosized aqueous dispersion of n-eicosane (C20H42) using an optical method. Samples of an aqueous dispersion of the studied paraffin were obtained using ultrasonic dispersion without adding surfactants. For the studied sample, the temperatures of phase transitions (melting, crystallization, rotator phases) were determined during heating and cooling. Phase transitions not observed in a bulk sample of the studied paraffin were discovered.

引用

页码：3327 / 3331

页数：5

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