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Open AccessArticle

Permeable Water-Resistant Heat Insulation Panel Based on Recycled Materials and Its Physical and Mechanical Properties

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Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
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Department of Textile Evaluation, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
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Author to whom correspondence should be addressed.
Academic Editors: Pietro Russo and Fabrizio Sarasini
Molecules 2019, 24(18), 3300; https://doi.org/10.3390/molecules24183300
Received: 7 August 2019 / Revised: 7 September 2019 / Accepted: 10 September 2019 / Published: 11 September 2019
(This article belongs to the Special Issue Advances in Natural Fiber Composites and Their Interfacial Adhesion)
This paper deals with the development and characteristics of the properties of a permeable water-resistant heat insulation panel based on recycled materials. The insulation panel consists of a thermal insulation core of recycled soft polyurethane foam and winter wheat husk, a layer of geopolymer that gives the entire sandwich composite strength and fire resistance, and a nanofibrous membrane that permits water vapor permeability, but not water in liquid form. The observed properties are the thermal conductivity coefficient, volumetric heat capacity, fire resistance, resistance to long-term exposure of a water column, and the tensile strength perpendicular to the plane of the board. The results showed that while the addition of husk to the thermal insulation core does not significantly impair its thermal insulation properties, the tensile strength perpendicular to the plane of these boards was impaired by the addition of husk. The geopolymer layer increased the fire resistance of the panel for up to 13 min, and the implementation of the nanofibrous membrane resulted in a water flow of 154 cm2 in the amount of 486 g of water per 24 h at a water column height of 0.8 m. View Full-Text
Keywords: heat insulation; sandwich panel; polyurethane foam; geopolymer; nanofiber membrane heat insulation; sandwich panel; polyurethane foam; geopolymer; nanofiber membrane
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Hýsek, Š.; Frydrych, M.; Herclík, M.; Fridrichová, L.; Louda, P.; Knížek, R.; Le Van, S.; Le Chi, H. Permeable Water-Resistant Heat Insulation Panel Based on Recycled Materials and Its Physical and Mechanical Properties. Molecules 2019, 24, 3300.

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