Effect of temperature and curing time on the fabrication of polysiloxane fzlled silica synthetic via casting and compression moulding methods

Abdulslam, Salahaldeen Salem (2013) Effect of temperature and curing time on the fabrication of polysiloxane fzlled silica synthetic via casting and compression moulding methods. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Polysiloxane is a specialty synthetic elastomer that provides a unique balance of chemical and mechanical properties required by many industrial applications. It is widely used in many fields due to its high- and low-temperature resistance, long service life, inertness, and many other excellent characteristics. However, for the poor mechanical properties, it cannot be practically used without reinforcement. Such deficiency is usually overcome by adding certain reinforcing filler. In this research, polysiloxane was reinforced with synthetic silica in order to improve the physical and mechanical properties. Seven samples with 0 wt??,2 wt??, 4 d?,6 WE?,8 8%1,0 wt?! and 12 wt?? of silica loading and two method were used for fabricated each sample., Morphology of samples was observed by scanning electron microscopy (SEM) while, physical properties were measured by density test. Molecular vibrations and rotations of samples were examined by Fourier Transform Infrared Spectroscopy (FTIR). Thermal stability of the samples was measured by Thermogravimetric Analysis (TGA), The mechanical properties were examined via tensile test in this research. The results fiom SEM observation, the silica particles were distributed uniformly. However, the increment of silica led to agglomeration of particles. The densities of the developed polysiloxane composites were showing gradually rise with an increase amount of filler for both of the methods. The result of FTIR similar for all samples was obtained. The mechanical properties revealed the best of tensile strength was with samples 2 WE!? silica for both of methods are used and the best values of tensile strength were obtained fiom samples fabricated by casting moulding method.

Item Type:Thesis (Masters)
Subjects:T Technology > TN Mining engineering. Metallurgy
ID Code:5539
Deposited By:Normajihan Abd. Rahman
Deposited On:25 Jun 2014 10:29
Last Modified:25 Jun 2014 10:29

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