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

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.

Eco‐friendly polymer composites: A review of suitable methods for waste management

“…Crop residues are currently implemented in the development of acoustic and thermal panels. [246][247][248] According to Hassan and co-workers, [249] noise is a source of pollution, which implies over the economy and human health, so it is important to develop methods for sound insulation in buildings. They have used cotton, coconut, and sugarcane bagasse fibers in 10%, 15%, and 20% in volume fractions into green epoxy resin.…”

Development and Application of a New Apparatus for Moisture Measurement in Building Composites

“…The present apparatus is designed to measure samples with a maximum thickness of 20 cm, and for different sample shapes (square, rectangle, or circle). The measurement of permeability using the method of measuring the resistance of materials to the water column pressure was performed on the permeable water-resistant heat insulation panel Hýsek et al [10], which could be applied in diffuse open buildings, where the vapor permeability of the nanofiber membrane will be utilized while transporting moisture from the building to the external environment. Fridrichová et al [8] presented that the hydrostatic resistance of a membrane could be used to protect a building against water, for example during floods.…”

“…This material has the same property as concrete, as it is porous. When the nanofiber membrane was used, the waterproof material obtained was able to withstand the long-term effects of water [10].…”

Influence of Cutting Parameters on the Surface Quality of Two-Layer Sandwich Structures

“…Examples of such solutions can be materials resulting from the combination of particles of winter rapeseed stalks, geopolymer and basalt fibers [12]. Another example is the sandwich structure with a thermal insulation core of recycled polyurethane foam with the addition of winter wheat husk [13]. Due to their heterogeneous structure, hybrid sandwich structures are regarded as difficult-to-process engineering materials [14].…”