INTERNATIONAL JOURNA L OF ENGINEERING SCI ENCES & RESEARCH TECHNOLOGY Optical and Physical Properties of SiO2 Nanoparticles and Tetra Ortho Silicate Doped in Polyurethane Foams

In this article optical and physical property of th e composition of polyurethane open cell (PUOC) with two different concentrations of SiO2 nanoparticles (1 a nd 2wt. %) will be reported. Tetra ortho silicate ( TEOS) as an organic agent with different concen trations (0.05, 0.1, 0.15 and 0.2 Vol./Vol.) was ad ded to polyurethane composition. Optical microscopy imaging, watering uptake, FTIR and Raman spectroscopy of the synthesized samples were measured. The cell size of samples by adding SiO2 NPs and TEOS was SiO2 was recognized as a best specimen for absorbing water. By focusing on the recorded Raman spectra, it is revealed that PUOC/1wt. % SiO2 and PUOC/200 phase separation, DPS, and the hydrogen bonding index, R, in samples were evaluated in terms of their FTIR spectroscopy data. Two samples, PUOC/1wt. % SiO2 and PUOC/800 among the synthesized samples. By adding SiO2 NPs and TEOS in increased. This is similar to the behavior of real density in SiO2 NPs into PUOC but by adding TEOS into PUOC, the real density of samples were decreased. The tot al porosity, open porosity and closed porosity of t samples were calculated. By adding SiO2 NPs and TEOS into PUOC, the open porosity of samples was increased.