СВІДЕРСЬКИЙ В. А.

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  • ФІЗИКО-МЕХАНІЧНІ ВЛАСТИВОСТІ ЕПОКСИКРЕМНІЙОРГАНІЧНИХ КОМПАУНДІВ

    Досліджено фізико-механічні властивості епоксикремнійорганічних компаундів. Показано особливу поведі-нку поліметилфенілсилоксанів під час формування структури епоксикремнійорганічних компаундів.

    We study the physical and mechanical properties of epoxide-organic silicon compounds. The use of organosilicon compounds as agents for the production of cohesive coatings of different functional purposes conditionally complex of positive properties, namely high hydrophobic thermal and chemical stability, ability to combining with organic and inorganic compounds and consequently the ability to target modification. The disadvantages of organosilicon compounds are their low mechanical properties, adhesion, elasticity, and other. Therefore, to improve the silicone coating and the extension of how the application material was affected in an attempt to combine them with organic compounds this can reduce the above drawbacks. In this article, the focus of research is the polyorganosiloxane, epoxy resin ED-20 and compounds thereof. Quantifying the wettability formed on the solid surfaces of the contact angle values on the point of the phase angle and roll over the surface of a liquid droplet О, which is a dynamic characteristic. The method of its determination to evaluate the wettability of a static state is determined. Wetting liquid is distilled water. Determination of water and physical-mechanical properties of the epoxide-organic silicon compounds (micro-hardness, impact strength, mechanical strength squeezing and bending) was carried out accord-ing to procedures adopted for paints and varnishes. Analysis of the data source, and an epoxy silicone material showed the presence of significant difference in the values of roll angles and edge wetting and micro-hardness based materials. With the full contact with water the epoxide-organic silicon compounds have two extremes in the curve of water absorption on the concentration of ED-20 for PMPS II and one for the PMPS I. The article also studies the characteristics of interaction processes of the epoxide-organic silicon compounds of different composi-tion with water in the dynamic and static conditions and when it is fully immersed in different concentration of ED-20, type and concentration of the polyorganic siloxane. It has been found that the compositions of the PMPS II less sensitive to water. A more detailed analysis of changes in the mechanical strength of the example polymethylphenylsiloxane compounds II showed the presence of the positive impact of the latter at concentrations that do not exceed 7.5 wt.%. The subsequent increase of its content is accompanied by a significant decline in strength and flexural clenching and after 20 wt.% These indicators are practically the same. The show features polymethylphenylsiloxanes behavior in the processes of structure formation of the epoxide-organic silicon com-pounds. The dependence of the physical and mechanical properties of the epoxide-organic silicon compounds (mi-cro-hardness, impact strength, mechanical strength and compression of bending) in a wide range of concentrations of ED. The presence of areas of extreme changes in physical and mechanical properties of the compounds and found their concentration ranges.

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  • Особливості взаємодії в системі епоксид-вода

    Показано вплив особливостей структури епоксидних покриттів на стійкість до тривалої дії води. Дослі-джено особливості формування структури епоксидних матеріалів залежно від технологічних факторів. Дана кількісна оцінка процесів взаємодії епоксидних матеріалів з водою при різних температурах і фізико-хімічне обґрунтування процесів, що при цьому відбуваються.

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