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Processing and characterization of titanium dioxide composites from vegetable oil resource
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Mohamed Aboobucker Sithique
Published/Copyright:
August 9, 2011
Abstract
TiO2 filled bio-based composites were prepared from epoxidized soy bean oil and Diglycidyl ether of bisphenol-A, in which the nano TiO2 particles were dispersed using ultra sonication method. Composites prepared with 1, 3, 5 and 7 weight percent level (wt%) of TiO2 particles were characterized for their thermal properties such as glass transition temperature and degradation stability. Thermo gravimetric analysis (TGA) showed that thermal stability of the composites increases up to 5 wt% addition of TiO2; thereafter it follows a decreasing trend, since the increased amount of nano sized particles makes it difficult for dispersion. The glass transition temperature of the composites was improved considerably. Dynamic mechanical analysis (DMA) further confirms the restricted chain mobility of the composites upon reinforcement. The significant improvements in mechanical properties such as tensile strength, tensile modulus, flexural strength, flexural modulus, and impact strength were achieved on reinforcement. The wide angle X-ray diffraction (WAXD) studies show that the nanoparticles are exfoliated in the soy based epoxy matrix system. The morphological behavior of composites studied using scanning electron microscopy (SEM) reveals the compatibility between the matrix and nanoparticles. The results showed that adding nano sized TiO2 particles can improve the properties of thermal, mechanical, compatibility and water resistance of these renewable resource based epoxy matrices suitable for engineering applications.
Published Online: 2011-08-09
Published Online: 2011-07-08
Published in Print: 2011-07-01
©2011 by Walter de Gruyter Berlin Boston
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- Complex permittivity measurements of RF plasma polymerized polyterpenol organic thin films employing split post dielectric resonator
- Fluctuation-induced forces in critical crosslinked polymer blends
- Chemical and physical properties of self-crosslinked poly(vinyl chloride)/nitrile rubber nanocomposites prepared by melt-mixing process
- An effective tool to characterize adhesion at the interface of binary polymer blends: a free volume study
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- Microwave-assisted ionic liquid phase synthesis of phthalonitrile polymers
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