基于无机成分的低温凝胶成型组合物的流变特性

IF 0.4 Q4 CHEMISTRY, MULTIDISCIPLINARY
 S. KOZHEVNIKOV I,  V. BOGOSLOVSKII A,  K. ALTUNINA L
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引用次数: 0

摘要

本文介绍了 SB RAS 石油化学研究所开发的基于无机成分的低温成分(GALKA®)的流变测量结果。研究使用 Haake Viscotester IQ 流变仪,采用 CC25 几何结构(频率为 1 Hz 的振荡模式),在不同温度下进行。振幅测试确定了与线性粘弹性范围相对应的应变和应力振幅值范围。对于线性粘弹性范围内的给定变形幅度值,在 38、30 和 20 °С 温度下记录了复合粘模量 (|η*|)、弹性模量(储存模量,G´)和粘模量(损失模量,G´´)与时间的关系。测定了凝胶形成过程的动力学特征,根据最大弹性模量估算了所形成结构的最大强度,并确定了凝胶形成的时间和凝胶化的起点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
RHEOLOGICAL PROPERTIES OF A LOW-TEMPERATURE GEL-FORMING COMPOSITION BASED ON INORGANIC COMPONENTS
The results of rheological measurements of a low-temperature composition based on inorganic components developed at the Institute of Petroleum Chemistry SB RAS (GALKA®) are presented. The studies were carried out with a Haake Viscotester IQ rheometer using CC25 geometry (oscillation mode at a frequency of 1 Hz) at different temperatures. The amplitude test determined the range of strain and stress amplitude values corresponding to the range of linear viscoelasticity. For a given value of the deformation amplitude from the range of linear viscoelasticity, the dependences of the complex viscosity modulus (|η*|), the elastic modulus (storage modulus, G´), and the viscosity modulus (loss modulus, G´´) on time were recorded at a temperature of 38, 30, and 20 °С. The kinetics of the gel formation process was characterized, the maximum strength of the formed structure was estimated from the maximal elastic modulus, the time of its formation and the starting points of gelation were determined.
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来源期刊
Chemistry for Sustainable Development
Chemistry for Sustainable Development CHEMISTRY, MULTIDISCIPLINARY-
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25.00%
发文量
52
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