Effect of particle size on surface modification of silica nanoparticles by using silane coupling agents and their dispersion stability in methylethylketone

2007 ◽  
Vol 307 (2) ◽  
pp. 418-424 ◽  
Author(s):  
Motoyuki Iijima ◽  
Mayumi Tsukada ◽  
Hidehiro Kamiya
Keyword(s):  
Particle Size ◽  
Surface Modification ◽  
Silica Nanoparticles ◽  
Dispersion Stability ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Silane Coupling ◽  
Effect Of Particle Size

Surface modification of porous alumina filters for CO2 separation using silane coupling agents

2016 ◽  
Vol 497 ◽  
pp. 216-220 ◽  
Author(s):  
Tsuyoshi Takahashi ◽  
Remi Tanimoto ◽  
Toshihiro Isobe ◽  
Sachiko Matsushita ◽  
Akira Nakajima
Keyword(s):  
Surface Modification ◽  
Porous Alumina ◽  
Coupling Agents ◽  
Co2 Separation ◽  
Silane Coupling Agents ◽  
Silane Coupling

Preparation of Nano-SiO2 Particles Modified by Fluorine Silane Coupling Agent

2014 ◽  
Vol 915-916 ◽  
pp. 709-712
Author(s):  
Xiao Li Wei ◽  
Fa Xing Zhang
Keyword(s):  
Particle Size ◽  
Surface Modification ◽  
Double Bond ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Coupling Agents ◽  
Test Results ◽  
Dsc Analysis ◽  
Dispersion Effect ◽  
Silane Coupling

In this paper nanoSiO2 particles were prepared with the surface grafted fluorine coupling agents and double bond by using surface modification technology. Dispersion effect of nanoSiO2 particles were studied in different solvents ultrasound cavitation. Test results showed in infrared spectroscopy, TEM and laser particle size distribution analyzer that both F8261 and KH-570 have been grafted onto the surface of nanoSiO2 , particle size and distribution of nanoSiO2 after modified by the two coupling agent became smaller and more narrow; Tg-DSC analysis showed that when the amount of of the coupling agent is up to 10%, fluorine coupling agent and double bond grafted onto surface of nanoSiO2 particles reach the saturation.

scholarly journals Surface modification of alumina nanoparticles with silane coupling agents

2010 ◽  
Vol 21 (12) ◽  
pp. 2238-2245 ◽  
Author(s):  
Luis A. S. A. Prado ◽  
Montira Sriyai ◽  
Marcos Ghislandi ◽  
Ana Barros-Timmons ◽  
Karl Schulte
Keyword(s):  
Surface Modification ◽  
Alumina Nanoparticles ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Silane Coupling

Preparation of Polymer Microspheres Using Silane Coupling Agent Modified Nano-SiO2 as Single Stabilizer

2011 ◽  
Vol 341-342 ◽  
pp. 247-251 ◽  
Author(s):  
Guang Hui Ma ◽  
Fa Ai Zhang ◽  
Chang Sheng Gu
Keyword(s):  
Silica Nanoparticles ◽  
Average Particle Size ◽  
Optical Microscope ◽  
Coupling Agents ◽  
Average Particle ◽  
Silane Coupling Agents ◽  
Pickering Emulsion Polymerization ◽  
Silane Coupling ◽  
Unmodified Silica

This paper demonstrates that silica nanoparticles were modified by the four silane coupling agents (KH-151, KH-550, KH-560, KH-570) firstly, then polystyrene/silica (PS/SiO2) composite microsphere with PS core and silica nanoparticles shell were prepared by Pickering emulsion polymerization. The characterization of optical microscope (OM), scanning electron microscope (SEM), and thermogravimetic analysis ( TGA) illustrates that these microsphere are composed of PS and silica nanoparticles. Silica nanoparticles modified by the different silane coupling agents could form the stable PS/SiO2 microsphere over 70 °C, while the unmodified silica nanoparticles are difficult to form stable PS/SiO2 microspheres at the same temperature. The PS/KH-151-SiO2 microsphere exhibits the least average particle size, while the PS/KH-570-SiO2 microsphere produces the largest. Both SEM and TGA confirm that microsphere surface exists solid nanoparticles.

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