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

共 26 条

[11]

Startsev V.O., Slavin A.V., Resistance of carbon and glass-reinforced plastics based on melt binders to moderately cold and moderately warm climates, Trudy VIAM No., 5, pp. 114-126, (2021)

[12]

Collings T.A., The effect of observed climatic conditions on the moisture equilibrium level of fibre-reinforced plastics, Composites, 17, pp. 33-41, (1986)

[13]

Startsev V.O., Dependence of the surface temperature of the samples on the characteristics of the climate during exposure in natural conditions,” Korroziya: Materialy, Zashchita, No., 7, pp. 43-47, (2013)

[14]

Unnam J., Tenney D.R., Analytical prediction of moisture absorption/desorption in resin matrix composites exposed to aircraft environments, Proceedings of AIAA/ASME 18Th Structures, Structural Dynamics & Materials Conference, A, pp. 227-235, (1977)

[15]

Bosen J.F., An approximation formula to compute relative humidity from dry bulb and dew point temperatures, Mon. Weather Rev., 86, (1958)

[16]

Kolesnik K.A., Simulation of moisture saturation of polymer composites in real climatic conditions, Aviats. Mater. Tekhnol., No., 4, pp. 77-86, (2017)

[17]

Scherban S., Et al., Full-scale fatigue and residual strength tests of the composite wing box of a passenger aircraft, Structural Integrity in the Age of Additive Manufacturing ICAF 2019, (2019)

[18]

Jones F.R., Foreman J., Polymer Composites in the Aerospace Industry, (2014)

[19]

Shen C.H., Springer G.S., Moisture absorption and desorption of composite materials, J. Compos. Mater., 10, pp. 2-20, (1976)

[20]

Startsev V.O., Prediction of the surface temperature of samples of composite materials based on adhesive prepregs when exposed to climatic conditions, Klei. Germetiki. Tekhnol., No., 9, pp. 24-31, (2017)

← 1 2 3 →