Permeable water-resistant heat insulation panel based on recycled materials and its physical and mechanical properties
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Date
2019-01-01
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
: 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.
Description
Subject(s)
heat insulation, sandwich panel, polyurethane foam, geopolymer, nanofiber membrane