Polyurethane foams reinforced with microspheres - assessment of the application in construction as a thermal insulation material

Zygmunt-Kowalska, Beata; Trestka, Patrycja; Szajding, A.; Handke, B.; Kuźnia, Monika

doi:10.1016/j.tca.2023.179556

Cited by 9 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, these materials have been gaining more attention. One of the most extensively studied thermal insulating materials is polyurethane foam because of its advantages such as low apparent density, thermal conductivity, and superior mechanical performance [ 3 , 4 , 5 ]. However, the raw materials for polyurethane foams are obtained from petrochemical sources, which contribute to increased carbon dioxide emissions and negatively affect the environment [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Liquid Glass-Modified Lignin Waste on the Flammability Properties of Biopolyurethane Foam Composites

Kairytė,

Makowska,

Rybiński

et al. 2024

Polymers

View full text Add to dashboard Cite

Water-blown biopolyurethane (bioPUR) foams are flammable and emit toxic gases during combustion. Herein, a novel approach suggested by the current study is to use different amounts of lignin waste (LigW), which increases the thermal stability and delays the flame spread and sodium silicate (LG), which has foaming ability at high temperatures and acts as a protective layer during a fire. However, there have been no studies carried out to investigate the synergy between these two materials. Therefore, two different ratios, namely 1/1 and 1/2 of LigW/LG, were used to prepare bioPUR foam composites. The obtained bioPUR foam composites with a 1/2 ratio of LigW/LG exhibited inhibition of flame propagation during the ignitability test by 7 s, increased thermal stability at higher temperatures by 40 °C, reduced total smoke production by 17%, reduced carbon monoxide release by 22%, and increased compressive strength by a maximum of 123% and 36% and tensile strength by a maximum of 49% and 30% at 100 °C and 200 °C, respectively, compared to bioPUR foam composites with unmodified LigW. Additionally, thanks to the sufficient compatibility between the polymeric matrix and LigW/LG particles, bioPUR foam composites were characterised by unchanged or even improved physical and mechanical properties, as well as increased glass transition temperature by 16% compared to bioPUR foam composites with unmodified LigW particles, making them suitable for application as a thermal insulating layer in building envelopes.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Liquid Glass-Modified Lignin Waste on the Flammability Properties of Biopolyurethane Foam Composites

Kairytė,

Makowska,

Rybiński

et al. 2024

Polymers

View full text Add to dashboard Cite

show abstract

Mechanical, Thermal, and Sound Properties of Bamboo‐Powder‐Filled Polyurethane Composites

Yeşilyurt,

Parın,

Uysal

2024

ChemistrySelect

View full text Add to dashboard Cite

Bamboo, which is called “green gold” because of its sustainability characteristics, has many wonderful properties that make it environmentally friendly. In this study, polyurethane (PU) composites used in the automotive industry were produced by adding different amounts of bamboo powders (1, 2.5, 5, 7.5, 10 and 15%, w/v) to PU foams. In this regard, density, light and stereomicroscopic analysis, thermal conductivity, spectroscopic analysis, and mechanical (compression) test have been performed. Further, sound absorption analysis and contact angle analysis have been carried out. Optical and stereomicroscopes showed average pore sizes with range of 258–482 µm. As the bamboo powder increased, the contact angle values decreased from 129 ° to 88 °. Compression force deflection values of the samples declined from 1850 to 360 g/cm2. Similar to the mechanical properties, the thermal conductivities of the PU foams decreased. However, in regards to FT‐IR, no chemical reactions were observed between PU matrix and bamboo powder. The sound absorption test results showed that bamboo powder filled PU foams are sound absorption materials and that rigid PU foam with 2.5% (w/v) (PU‐2.5) bamboo powder sample had better sound absorption properties than the bamboo‐powder‐unfilled rigid PU foam (PU‐0), with an average sound absorption coefficient value of 0.86 at 6300 Hz and 0.71 in the range of 1600–6300 Hz.

show abstract

Fabrication of Silane and Desulfurization Ash Composite Modified Polyurethane and Its Interfacial Binding Mechanism

Wu,

Chen,

et al. 2024

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

Polyurethane foams reinforced with microspheres - assessment of the application in construction as a thermal insulation material

Cited by 9 publications

References 34 publications

Effect of Liquid Glass-Modified Lignin Waste on the Flammability Properties of Biopolyurethane Foam Composites

Effect of Liquid Glass-Modified Lignin Waste on the Flammability Properties of Biopolyurethane Foam Composites

Mechanical, Thermal, and Sound Properties of Bamboo‐Powder‐Filled Polyurethane Composites

Fabrication of Silane and Desulfurization Ash Composite Modified Polyurethane and Its Interfacial Binding Mechanism

Contact Info

Product

Resources

About