ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Vinyl ester BisGMA [Bisphenol-A-glycidyldimethacrylate] resin has been modified byincorporating Titanium dioxide(TiO2)nanoparticles (0.5%-2% by weight). An ultrasonic mixingprocess was employed to disperse the particles into the resin system prior to casting and curing testspecimens. From TEM investigation, it is found that the particles are nano size (5-60nm) anddispersed throughout the entire volume of the resin. Dynamic mechanical analysis was conductedfor both the neat resin and nanocomposite. In dynamic mechanical analysis, nanocomposite showsincrease in storage modulus (6%), and glass transition temperature (5.8%) from neat resin system.Thermogravimetric analysis shows 7.5% better thermal stability. In addition, the nanocompositeshows enhance in the stiffness by 5% in flexural loading. The Tg and flexural modulus of thenanocomposites were enhanced as the particle volume fraction was enhanced and than decreased
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.241.pdf
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