Evaluation of structural, optical and physical properties of polyurethane composites doped with metal alkoxides

• Autorzy: Nadafan Marzieh , Anvari Javid Zamir

Identyfikatory

DOI

10.2478/msp-2020-0048

• Języki publikacji: EN

Abstrakty

EN

In this research, polyurethane (PU)/tetraethyl orthosilicate (TEOS) composite was prepared via one-step polymerization method using different concentrations of TEOS in PU. The structural, optical and physical properties of PU composite were characterized by SEM imaging, FT-IR spectroscopy, water uptake, Raman spectroscopy and optical microscopy imaging of synthesized samples. The SEM results showed that by adding TEOS to the PU, the cell and window size of synthesized samples decreased. This result was also observed in the optical micrographs. The bonding characteristics of PU/TEOS composites were analyzed using Raman and FT-IR spectra. According to the FT-IR spectra, the degree of phase separation (DPS) and hydrogen bonding index, R, in 800 µl TEOS/PU had the highest R and DPS factors. By adding different concentrations of TEOS to PU, the apparent density decreased but the real density increased. The total, open and closed porosity of the synthesized samples were calculated. At low loading of TEOS in PU, the open porosity of the samples increased. The PU/TEOS composites may be promising candidates for absorbing sound.

Słowa kluczowe

EN

polyurethane; FT-IR spectroscopy; Raman spectroscopy; porosity; density; SEM analysis

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2020
• Tom: Vol. 38, No. 3
• Strony: 416--423
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Nadafan Marzieh

• Department of Physics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, Lavizan, P.O. Box 16788-15811, I.R. Iran

autor

Anvari Javid Zamir

• Department of Physics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, Lavizan, P.O. Box 16788-15811, I.R. Iran

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