Abstract
The surfactant and colloidal nanoparticles has been considered for various applications because of interaction of both complex mixtures. The hydrophilic SiO2 nanoparticle could not be surface active behavior at the liquid/air interface. In this study, the SiO2 nanoparticles have been modified with 3-isocyanatopropyltriethoxy-silane (ICP), and the effect of foam stability has been investigated. The physical properties of surface modified SiO2 nanoparticle were analyzed by XRD, TGA, FT-IR, and SEM. After surface modification of SiO2 nanoparticles, the contact angle of SiO2 nanoparticle was also increased from 62° to 82° with increased ICP concentration. The experimental result has shown that SiO2 nanoparticle with ICP was positive effect and improved foam stability could be obtained at proper ICP concentration compared with un-modified SiO2 nanoparticle.
Highlights
The surfactant and colloidal nanoparticles has been considered for various applications because of interaction of both complex mixtures
We synthesized S iO2 nanoparticles through sol–gel process and modified its surface by adjusting ICP concentration
The surface modification of SiO2 nanoparticles was analyzed by XRD, TGA, SEM, TEM, fourier transform infrared spectroscopy (FT-IR) and contact angle
Summary
The surfactant and colloidal nanoparticles has been considered for various applications because of interaction of both complex mixtures. The hydrophilic SiO2 nanoparticle could not be surface active behavior at the liquid/air interface. The SiO2 nanoparticles have been modified with 3-isocyanatopropyltriethoxy-silane (ICP), and the effect of foam stability has been investigated. The physical properties of surface modified SiO2 nanoparticle were analyzed by XRD, TGA, FT-IR, and SEM. It is reported that colloidal hydrophobic particles are able to significantly improve the foam stability[8] These approaches are being used for the stable foam applications. As synthesized mesoporous silica nanoparticles have hydrophilic properties, which is not adsorb and surface active behavior at the liquid/air interface. In order to enhance the foam stability, the surface modification of SiO2 nanoparticle should be needed. Foam stability has been improved with S iO2 nanoparticles modified by 3-isocyanatopropyltriethoxy-silane
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