The Influence of Diurnal and Seasonal Variations of Relative Humidity and Temperature on Coal–Plastic Moisture Saturation in Open Climatic Conditions

被引：0

作者：

Salnikov V.G. ^{[1
]}

Startsev O.V. ^{[2
]}

Lebedev M.P. ^{[2
]}

Kopyrin M.M. ^{[2
]}

Vapirov Y.M. ^{[1
]}

机构：

[1] Institute of Natural and Technical Systems—Branch, Sochi

[2] Federal Research Center “Yakutsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”, Yakutsk

来源：

Polymer Science - Series D | 2023年 / 16卷 / 01期

关键词：

climatic action; coal–plastic; destruction; modeling; moisture absorption; relative humidity; temperature;

D O I：

10.1134/S1995421223010264

中图分类号：

学科分类号：

摘要：

Abstract: This paper presents the study of the mass variation of the aviation-intended epoxy coal–plastic plates during 6 years of exposure in the warm humid climate of Sochi, on an open area, under a canopy, and in a jalousie booth. We show that the surface temperature of the samples under the solar radiation influence overheats up to 30°C, causing a relative humidity decrease in air near the surface by 30%. Seasonal fluctuations of the air relative humidity entail sample mass fluctuations; we approximated them by the Fickian moisture-transfer model, taking into account destruction losses during the photo-oxidation under open climatic conditions. We performed a simulation making it possible to predict, with good accuracy, the temperature and humidity regimes of the coal–plastic surface and to determine the seasonal moisture-content fluctuations against the background of the destruction mass losses. © 2023, Pleiades Publishing, Ltd.

引用

页码：131 / 136

页数：5

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