机械活化下无机微粒水分散体系的稳定性

Q3 Engineering

WSEAS Transactions on Applied and Theoretical Mechanics Pub Date : 2021-09-06 DOI:10.37394/232011.2021.16.13

A. Perchenok, E. Suvorova, A. Farmakovskaya, V. Kohlert

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引用次数: 24

摘要

研究了在水溶性聚合物-乙基羟乙基纤维素（EHEC）存在下，TiO2和Fe2O3微粒的水性分散体系的稳定性，条件是使用两种方法对颜料表面进行机械活化-在崩解器和超声场中对其进行处理。研究表明，在没有聚合物稳定剂的情况下，对颜料的水性分散体系的强烈影响会导致颗粒的快速凝结。在肠出血性大肠杆菌存在的情况下，观察到较小的稳定作用，当在崩解器和超声场中处理分散系统时，这种稳定作用显著增强。在这种情况下，分散体系的稳定性几乎不取决于其表面的机械活化方法，而在很大程度上取决于强烈暴露的持续时间。

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Stabilization of Aqueous Dispersions of Inorganic Microparticles Under Mechanical Activation

The stability of aqueous dispersed systems of TiO2 and Fe2O3 microparticles in the presence of a water-soluble polymer - ethylhydroxyethylcellulose (EHEC) - has been studied under the condition of using two methods of mechanoactivation of the pigment surface - processing them in a disintegrator and in an ultrasonic field. It is shown that in the absence of a polymer stabilizer, an intense effect on aqueous dispersed systems of pigments leads to rapid coagulation of particles. In the presence of EHEC, a small stabilizing effect is observed, which is significantly enhanced when processing dispersed systems in a disintegrator and in an ultrasonic field. In this case, the stability of dispersed systems depends little on the method of mechanoactivation of their surface, but significantly depends on the duration of the intense exposure.

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来源期刊

WSEAS Transactions on Applied and Theoretical Mechanics Engineering-Computational Mechanics

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： WSEAS Transactions on Applied and Theoretical Mechanics publishes original research papers relating to computational and experimental mechanics. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with fluid-structure interaction, impact and multibody dynamics, nonlinear dynamics, structural dynamics and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.