Abstract

Infrared spectra are obtained for the disperse phase of initial and mechanoactivated hydrosols of colloidal silica and binary systems with an oligoacrylate dispersion (10 wt %). Changes in the absorption bands characterizing the state of the functional groups of the considered substances are analyzed. A conclusion is drawn about interactions that occur according to the mechanism of physical adsorption with silica subjected to ultrasonic dispersion. It is found that the rotor pulse treatment of a hydrosol of silica results in the breaking of siloxane bonds, accompanied by a rise in the concentration of the silanol groups. Mechanoactivation of the binary system ensures processes of chemisorption with the formation of new types of Si–O–C and Si–C bonds.

中文翻译：

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胶态二氧化硅和低聚丙烯酸酯机械活化水溶胶中的相互作用

摘要

获得了具有低丙烯酸酯分散体（10重量％）的胶态二氧化硅和二元体系的初始和机械活化水溶胶的分散相的红外光谱。分析表征所考虑物质的官能团状态的吸收带的变化。得出的结论是，根据物理吸附机理与经过超声分散的二氧化硅的相互作用而产生的相互作用。已经发现，对二氧化硅水溶胶的转子脉冲处理导致硅氧烷键的断裂，同时伴随着硅烷醇基团浓度的增加。二元体系的机械活化作用可确保化学吸附过程形成新型的Si–OC和Si–C键。