Halloysite-Decorated Mechanically Robust Polyurethane Nanocomposite Foams for Acoustic Relevance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F22%3AA2302IQX" target="_blank" >RIV/61988987:17310/22:A2302IQX - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.iecr.2c03535" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.iecr.2c03535</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Halloysite-Decorated Mechanically Robust Polyurethane Nanocomposite Foams for Acoustic Relevance
Original language description
Noise pollution affects human health and the environment. In this study, halloysite nanoclay (HNC) was employed as a bio-nanofiller with different ratios (1-5 wt %) to improve the thermal, mechanical, and sound absorption capabilities of the flexible polyurethane (FPU) foam. FPU/HNC composites were characterized using X-ray diffraction, Fourier transform infrared, and field emission scanning electron microscopy techniques. In addition, porosity, apparent density, and sol fraction for FPU/HNC composites were investigated. Compared with the unfilled FPU foam, the results of the FPU/HNC 1% sample showed that the density achieved a maximum value of 38.17 Kg/m3, while the porosity was reduced to 83.48%. Moreover, the sol fraction reached the highest value of 13.4% for the FPU/HNC 5% sample. Furthermore, thermogravimetric analysis revealed that adding 1 wt % HNC improved thermal stability than the unfilled FPU. Nevertheless, the DSC measurement proved that HNC increased the glass transition temperature (Tg) for the composites' soft segments. Intriguingly, the mechanical measurements exposed that the compressive and tensile strength of the FPU/HNC 1% sample was enhanced to 158.93 and 154.45%; at the same time, the elongation at break dropped to 124.04%. Nevertheless, the sound absorption measurements (20 mm thickness) showed a slight shift to the mid-frequency range (315-1600 Hz) for FPU/HNC composites than the unfilled FPU.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IND ENG CHEM RES
ISSN
0888-5885
e-ISSN
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Volume of the periodical
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Issue of the periodical within the volume
14.12.2022
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
17937-17949
UT code for WoS article
000893968400001
EID of the result in the Scopus database
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