Surface Modification of Nanosilica with Glycidoxypropyltrimethoxysilane and Investigating its Effect on the Physical and Mechanical Properties of Epoxy Resin

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Poorkazem, Kianoosh | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 40467 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Mahmoudi Hashemi, Mohammad; Bastani, Saeed
Abstract:
In the first stage of this research, different amounts of glycidoxypropyltrimethoxysilane (GPS) were grafted as a coupling agent on the surface of nanosilica particles (NS). Surface characterization was done by Particle Size Analyzer and Thermal Gravimetric Analyzer (TGA) and that way, samples were distinguished from each other. More comparisons were taken by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Then the different amounts of modified NS were added into the matrix of an epoxy resin and the physical and mechanical properties of samples were tested with Abrasion Resistance test, Tensile Strength test, Thermal Mechanical Analysis (TMA), Differential Scanning Calorimetry (DSC), Konig Hardness test, Pencil Hardness test and Transmission Haze test. It was understood that for the best modification, the lower amount of GPS and NS is appropriate
Keywords:
Surface Functionality ; Nanosilica ; Epoxy Resin ; Physical Properties ; Mechanical Properties ; Glycidoxypropyltrimethoxisilane

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