Parameters of ultrasonic dispersion of polymer-composite solutions

Li, R. I.; Колесников, А. А.; Kiba, M. R.

doi:10.1134/s1995421217020137

Cited by 5 publications

(1 citation statement)

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“…A collide at rest has internal characteristics similar to solid, but when the waves propagate resulted different periodic causes molecules ow between spaces in the lattice during compressing and nally return to the original position. The USW velocity has been directly proportion with ZrO 2 NPs added, but inversely proportional with frequency, because USW causes various physical interaction between PEO/PMMA/PVP and ZrO 2 NPs molecules, lead to increase the velocity, but the increasing of frequencies led to decrease the velocities [12]. Figures (6 and 7) show that, the relaxation time and relaxation amplitude also decrease against the frequencies according to theoretical equation [13]:…”

Section: Resultsmentioning

confidence: 91%

Synthesis, Characterization and USW Sensor of PEO/PMMA/PVP Doped with Zirconium Dioxide Nanoparticles

Obaid¹

2021

Preprint

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Piezoelectric phenomena is very important for various applications such as ultrasound waves (USW) sensor and pressure sensors. The raw materials from polyethylene oxide (PEO), Poly(methyl methacrylate)(PMMA) and poly(N-vinyl pyrrolidone) (PVP) polymer blends were doped with 0.02,0.04 and 0.06 wt% from zirconium dioxide (ZrO2) nanoparticles (NPs) as a nanocomposites (NCs). The resultant films were prepared by dry casting method. The optical microscope (OM) and scanning electron microscopy (SEM) were used to satisfied from the SiO2NPs diffusion in the blend. The SiO2NPs were good diffused inside the blend with some weak aggregation happened in the high content of NPs. The composite films were diagnosed by FTIR. The USW properties were measured for k1 spaceman with various frequencies (25,30,…,45) MHz. The USW coefficients were clearly effected by the frequency varied. The resulted composite film was succeeded to be used as USW sensor, also these findings could help to realize these new NCs as promising materials for wide applications, such as backlight, car glass and UV filters.

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Section: Resultsmentioning

confidence: 91%