聚乙烯醇对纳米金刚石水分散体稳定性的影响

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY

Moscow University Chemistry Bulletin Pub Date : 2024-04-02 DOI:10.3103/S0027131424010103

O. A. Soboleva

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引用次数: 0

摘要

摘要研究了起爆纳米金刚石（NDs）水分散液在聚乙烯醇（PVA）存在下的稳定性。研究发现，浓度超过 0.1 wt % 的 PVA 添加剂会导致聚集体的形成。为了提高 NDs 分散体的稳定性，建议在体系中添加稳定剂--阴离子表面活性剂十二烷基硫酸钠（SDS）。在 SDS-PVA 混合物的同时稳定作用下，NDs 水分散体的聚集稳定性明显提高，而分散体中的粒度在数天内保持不变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The Influence of Polyvinyl Alcohol on the Stability of Aqueous Dispersions of Nanodiamonds

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The Influence of Polyvinyl Alcohol on the Stability of Aqueous Dispersions of Nanodiamonds

The stability of aqueous dispersions of detonation nanodiamonds (NDs) in the presence of polyvinyl alcohol (PVA) is studied. It is found that PVA additives with a concentration above 0.1 wt % cause the formation of aggregates. To increase the stability of dispersions of NDs, it is proposed to add a stabilizer—an anionic surfactant sodium dodecyl sulfate (SDS)—into the system. As a result of the simultaneous stabilizing action of an SDS–PVA mixture, the aggregation stability of aqueous dispersions of NDs noticeably increases, while the particle size in the dispersions remains unchanged for several days.

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来源期刊

Moscow University Chemistry Bulletin CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.30

自引率

14.30%

发文量

期刊介绍： Moscow University Chemistry Bulletin is a journal that publishes review articles, original research articles, and short communications on various areas of basic and applied research in chemistry, including medical chemistry and pharmacology.