Foam Polymers in Multifunctional Insulating Coatings

The application of foamed polymers as one of the components of insulating coatings allows to solve the problems of energy saving and creation of optimal operating conditions for constructions. The systems of application of energy-efficient heat-insulating materials must consider both the particulari...

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Autores principales:	Ter-Zakaryan K. A., Zhukov A. D., Bobrova E. Yu., Bessonov I. V., Mednikova E. A.
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyethylene foam insulating coating locking joint thermal resistance framed building frameless building Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/733654d7cc78489caa7ae733c0e3df97
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spelling	oai:doaj.org-article:733654d7cc78489caa7ae733c0e3df972021-11-11T18:44:14ZFoam Polymers in Multifunctional Insulating Coatings10.3390/polym132136982073-4360https://doaj.org/article/733654d7cc78489caa7ae733c0e3df972021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3698https://doaj.org/toc/2073-4360The application of foamed polymers as one of the components of insulating coatings allows to solve the problems of energy saving and creation of optimal operating conditions for constructions. The systems of application of energy-efficient heat-insulating materials must consider both the particularities of the insulating materials and the functional orientation of the constructions. The implementation of the concept of seamless insulating coatings implies the achievement of thermal effect and reduction in air permeability both by means of the application of thermal insulation with low thermal conductivity and the minimization of junctions between separate elements of the insulating coating, which is achieved using elastic foamed polymers and, first of all, polyethylene foam. Construction of seamless insulating coatings creates practically impermeable heat, vapor, and water barriers along the outer perimeter of the insulated object. Multilayer products based on polyethylene foam represent a relatively new material—a fact that requires examination of their properties, as well as under various operating conditions, and development of a methodology for evaluation of the operational resistance of these materials in structures of different purposes, including cold conservation. The performed tests have shown that the compressive strength at 10% deformation is determined by the function of load application area and varies from 70 kPa during the test of cube samples of 10 × 10 × 10 in size to 260 kPa for areas exceeding 100 m<sup>2</sup>. The longitudinal tensile strength amounts to 80–92 kPa, and the strength of the weld seam is equal to 29–32 kPa. It has been established that the values of thermal conductivity of polyethylene foam with an average density of 18–20 kg/m<sup>3</sup> amounts to 0.032–0.034 W/(m·K), diffusion moisture absorption is equal to 0.44 kg/m<sup>2</sup> without a metallized coating and 0.37 kg/m<sup>2</sup> with a metallized coating; water absorption after partial immersion in water for 24 h amounts to 0.013 kg/m<sup>2</sup>; water absorption by volume after complete water immersion for 28 days is equal to 0.96%. The material does not practically change its properties under conditions of long-term temperature alteration from −60 to +70 °C. The developed and implemented insulation systems for protective surfaces of framed construction objects, rubbhalls and frameless structures, floating floors, indoor ice rinks, and snow conservation systems are presented.Ter-Zakaryan K. A.Zhukov A. D.Bobrova E. Yu.Bessonov I. V.Mednikova E. A.MDPI AGarticlepolyethylene foaminsulating coatinglocking jointthermal resistanceframed buildingframeless buildingOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3698, p 3698 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyethylene foam insulating coating locking joint thermal resistance framed building frameless building Organic chemistry QD241-441
spellingShingle	polyethylene foam insulating coating locking joint thermal resistance framed building frameless building Organic chemistry QD241-441 Ter-Zakaryan K. A. Zhukov A. D. Bobrova E. Yu. Bessonov I. V. Mednikova E. A. Foam Polymers in Multifunctional Insulating Coatings
description	The application of foamed polymers as one of the components of insulating coatings allows to solve the problems of energy saving and creation of optimal operating conditions for constructions. The systems of application of energy-efficient heat-insulating materials must consider both the particularities of the insulating materials and the functional orientation of the constructions. The implementation of the concept of seamless insulating coatings implies the achievement of thermal effect and reduction in air permeability both by means of the application of thermal insulation with low thermal conductivity and the minimization of junctions between separate elements of the insulating coating, which is achieved using elastic foamed polymers and, first of all, polyethylene foam. Construction of seamless insulating coatings creates practically impermeable heat, vapor, and water barriers along the outer perimeter of the insulated object. Multilayer products based on polyethylene foam represent a relatively new material—a fact that requires examination of their properties, as well as under various operating conditions, and development of a methodology for evaluation of the operational resistance of these materials in structures of different purposes, including cold conservation. The performed tests have shown that the compressive strength at 10% deformation is determined by the function of load application area and varies from 70 kPa during the test of cube samples of 10 × 10 × 10 in size to 260 kPa for areas exceeding 100 m<sup>2</sup>. The longitudinal tensile strength amounts to 80–92 kPa, and the strength of the weld seam is equal to 29–32 kPa. It has been established that the values of thermal conductivity of polyethylene foam with an average density of 18–20 kg/m<sup>3</sup> amounts to 0.032–0.034 W/(m·K), diffusion moisture absorption is equal to 0.44 kg/m<sup>2</sup> without a metallized coating and 0.37 kg/m<sup>2</sup> with a metallized coating; water absorption after partial immersion in water for 24 h amounts to 0.013 kg/m<sup>2</sup>; water absorption by volume after complete water immersion for 28 days is equal to 0.96%. The material does not practically change its properties under conditions of long-term temperature alteration from −60 to +70 °C. The developed and implemented insulation systems for protective surfaces of framed construction objects, rubbhalls and frameless structures, floating floors, indoor ice rinks, and snow conservation systems are presented.
format	article
author	Ter-Zakaryan K. A. Zhukov A. D. Bobrova E. Yu. Bessonov I. V. Mednikova E. A.
author_facet	Ter-Zakaryan K. A. Zhukov A. D. Bobrova E. Yu. Bessonov I. V. Mednikova E. A.
author_sort	Ter-Zakaryan K. A.
title	Foam Polymers in Multifunctional Insulating Coatings
title_short	Foam Polymers in Multifunctional Insulating Coatings
title_full	Foam Polymers in Multifunctional Insulating Coatings
title_fullStr	Foam Polymers in Multifunctional Insulating Coatings
title_full_unstemmed	Foam Polymers in Multifunctional Insulating Coatings
title_sort	foam polymers in multifunctional insulating coatings
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/733654d7cc78489caa7ae733c0e3df97
work_keys_str_mv	AT terzakaryanka foampolymersinmultifunctionalinsulatingcoatings AT zhukovad foampolymersinmultifunctionalinsulatingcoatings AT bobrovaeyu foampolymersinmultifunctionalinsulatingcoatings AT bessonoviv foampolymersinmultifunctionalinsulatingcoatings AT mednikovaea foampolymersinmultifunctionalinsulatingcoatings
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Foam Polymers in Multifunctional Insulating Coatings

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