Organophilic Modification and Application of Nano-Fumed Silica in Pervaporation of Ethanol / Water Mixture

Bing Bing Li; Liang Wang; De Sun

doi:10.4028/www.scientific.net/AMM.117-119.679

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Numerical Simulation of Two High Speed Trains Passing by each other in a Long Tunnel
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Generalized Reynolds-Orr Energy Equation with Wall Slip
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Organophilic Modification and Application of Nano-Fumed Silica in Pervaporation of Ethanol / Water Mixture
p.679

Vibrational and Stochastic Resonance in FitzHugh-Nagumo Neural Model with Time-Delay and Colored Additive Noise
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 117-119Organophilic Modification and Application of...

Organophilic Modification and Application of Nano-Fumed Silica in Pervaporation of Ethanol / Water Mixture

Abstract:

Fumed Silica was modified with hexamethyldisiazane (HMDZ, modifier) and dimethyldiethoxysilane (DMDEOS, co-modifier) by grafting method. The structure of organo-functionnalized nanoparticles was characterized by fourier transform infrared spectrum (FT-IR) and transmission electron microscopy (TEM). Functional nanosilica-ﬁlled polydimethylsiloxane(PDMS) composites membrane were prepared. Scanning electron microscopy (SEM) observations of composites revealed good dispersion of the silica nanoparticles and the pervaporation performance of the ﬁlled PDMS membranes is better than that of the unﬁlled PDMS membranes.