jamtJournal of Advanced Materials and TechnologiesJournal of Advanced Materials and Technologies2782-21922782-2206ФГБОУ ВО «ТГТУ»10.17277/jamt.2024.01.pp.037-043jamt-15Research ArticleСовременные конструкционные материалы, материалы для экстремальных условийAdvanced structural materials, materials for extreme conditionsВлияние наполнителей на эксплуатационные свойства тонкослойных полимерных композитовThe influence of filler type on performance properties of thin-layer polymer compositeshttps://orcid.org/0009-0003-9919-3083ДомниченкоР. Г.DomnichenkoR. G.

Домниченко Раиса Григорьевна - старший преподаватель.

Кв. Молодежный, 20А, Луганск, 91034, Луганская Народная Республика

Raisa G. Domnichenko - Senior Lecturer.

20 A, Youth quarter, Lugansk, 91034, Lugansk People's Republic

raisa-domnichenko@yandex.comhttps://orcid.org/0000-0003-2226-6582КармановаО. В.KarmanovaO. V.

Карманова Ольга Викторовна - доктор технических наук, профессор.

Пр. Революции, 19, Воронеж, 394036

Olga V. Karmanova - D. Sc. (Eng.), Professor.

19, Revolution Avenue, Voronezh, 394036

karolga@mail.ruhttps://orcid.org/0000-0002-8192-0049ТихомировС. Г.TikhomirovS. G.

Тихомиров Сергей Германович - доктор технических наук, профессор.

Пр. Революции, 19, Воронеж, 394036

Sergey G. Tikhomirov - D. Sc. (Eng.), Professor.

19, Revolution Avenue, Voronezh, 394036

tikhomirov_57@mail.ruЛуганский государственный университет имени Владимира ДаляРоссияLugansk State University named after Vladimir DalRussian FederationВоронежский государственный университет инженерных технологийРоссияVoronezh State University of Engineering TechnologiesRussian Federation202413022026913743Copyright © Домниченко Р.Г., Карманова О.В., Тихомиров С.Г., 20262026Домниченко Р.Г., Карманова О.В., Тихомиров С.Г.Domnichenko R.G., Karmanova O.V., Tikhomirov S.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://jamt.elpub.ru/jour/article/view/15

Работа посвящена исследованию влияния факторов окружающей среды на эксплуатационные свойства покрытий на основе водных дисперсий, полученных в присутствии наполнителей разного типа. В качестве полимерной основы использовали дисперсию акрилового латекса и эпоксидной смолы, предварительно эмульгированную с полиакрилатом натрия. Диспергирование осуществляли при температуре 60 °С. В качестве наполнителей использовали дробленый мрамор, осадочный мел, химически осаждённый мел, каолин. Отвердителем служил полиэтиленполиамин. Компаундирование осуществляли в лабораторном дисольвере: в дисперсию вводили наполнитель, после чего осуществляли его диспергирование. Отвердитель вводили непосредственно перед нанесением покрытий. Исследовано влияние выбранных наполнителей на свойства получаемых покрытий. Изучен процесс гидрофилизации поверхности покрытия, протекающий за счет окисления полимерной фазы. Оценена эксплуатационная надежность покрытий при действии агрессивных факторов в зависимости от типа наполнителя. Показано, что при замене карбоната кальция каолином наблюдается повышение устойчивости покрытий к образованию дефектов, при этом адгезионные свойства сохраняется на высоком уровне. Установлено, что по влиянию на свойства покрытия факторы окружающей среды располагаются в ряду: тепло-влажностное старение > действие растворов электролитов > действие ультрафиолета. Под действием ультрафиолета имеет место гидрофилизация поверхности покрытия за счет окисления полимерной фазы.

The study aims to establish the impact of environmental factors on the properties of operational stability of coatings based on aqueous dispersions, depending on the surface properties of the filler used. The dispersion of acrylic latex and epoxy resin preliminarily emulsified with sodium polyacrylate was taken as the basis. Dispersion was carried out at a temperature of 60°C. Crushed marble, sedimentary chalk, chemically precipitated chalk and grade kaolin were used as fillers. The hardener was polyethylenepolyamine. Compounding was carried out in a laboratory dissolver: a filler was introduced into the dispersion, and then it was dispersed. The hardener was introduced immediately before coating. As a result, the degree of influence on the coating properties was established. The process of hydrophilization of the coating surface due to the oxidation of the polymer phase was studied. The operational reliability of coatings under the action of aggressive factors depending on the filler was evaluated. It is shown that when calcium carbonate is replaced by kaolin, an increase in the resistance to defective coatings is observed, and adhesion remains at a high level. It has been established that the influence of environmental factors on the properties of the coating are arranged in the following order: thermal and moisture aging > action of electrolyte solutions > action of ultraviolet. Under ultraviolet light, hydrophilization of the coating surface occurs due to the oxidation of the polymer phase.

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The authors declare that there are no conflicts of interest present.