Surface Modification of TiO2 Nanoparticles by Grafting with Silane Coupling Agent

Pornsiri Toh-Ae; Banja Junhasavasdikul; Natinee Lopattananon; Kannika Sahakaro

doi:10.4028/www.scientific.net/AMR.844.276

Paper Titles

Electrostriction of Natural Rubber Latex/Carbon Black Nanocomposites
p.259

Effect of Bis (Triethoxysilylpropyl) Tetrasulfide on Physical Properties of Rice Husk Fiber/Natural Rubber Composites
p.263

Comparison of Thermal Stability of Sulfur, Peroxide and EB Irradiation Cured NR Compounds Containing Ground EPDM Waste
p.267

Silica-Reinforced Natural Rubber Compounds Compatibilized through the Use of Epoxide Functional Groups and TESPT Combination
p.272

Surface Modification of TiO₂ Nanoparticles by Grafting with Silane Coupling Agent
p.276

Study on Utilization of Palm Oil Fly Ash as a Filler for Thermoset Natural Rubber
p.280

Curing, Tensile and Morphological Properties of Treated Bentonite Filled EPDM Composite
p.285

Influence of Surface Modification and Content of Nanosilica on Dynamic Mechanical Properties of Epoxidized Natural Rubber Nanocomposites
p.289

Tensile Properties, Swelling Behavior, and Morphology Analysis of Recycled High Density Polyethylene / Natural Rubber / Chicken Feather Fibers (R-HDPE / NR / CFF) Composites: The Effects of Caprolactam
p.293

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 844Surface Modification of TiO2 Nanoparticles by...

Surface Modification of TiO₂ Nanoparticles by Grafting with Silane Coupling Agent

Abstract:

Titanium dioxide (TiO₂) possesses excellent photocatalytic activity and provides UV protection for polymeric materials. The nanosized TiO₂ particles with larger surface area to volume ratio and an increased surface reactivity shall impart better photocatalysis and UV protection efficiency to the rubber compounds, compared to the use of conventional micron-sized particles. Direct incorporation of TiO₂ nanoparticles (n-TiO₂) into non-polar rubbers faces incompatibility problem between the two phases. One of the solutions to overcome this problem is to treat the nanoparticle surface by using silane coupling agent such as bis-(3-triethoxysilylpropyl) tetrasulfide (TESPT). This work prepared n-TiO₂from commercial micron sized-TiO₂ by ultrasonication technique. Particle size of TiO₂ was measured by laser light scattering particle size analyzer. The morphology of TiO₂ nanoparticles was characterized by field emission scanning electron microscope (FESEM). The grafting reaction of silane on TiO₂ nanoparticles surface was studied at varying reaction temperatures and times. The purified grafted materials were characterized by energy dispersive X-ray analysis (EDX), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The characterization data confirm a presence of grafted silane on the TiO₂ nanoparticles surface. The result shows that ultrasonication technique can effectively decrease particle size and the grafting reaction of silane coupling agent onto TiO₂ nanoparticles can be successfully carried out at 140°C for 8 h.

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Periodical:

Advanced Materials Research (Volume 844)

Pages:

276-279

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.844.276

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Online since:

November 2013

Authors:

Pornsiri Toh-Ae, Banja Junhasavasdikul, Natinee Lopattananon, Kannika Sahakaro*

Keywords:

Agglomeration, Silane Coupling Agent, Surface Modification, Titanium Dioxide Nanoparticles, Ultrasonication Technique

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