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PP1.02 - Nanodiamond-Containing Polymer-Matrix Composites 
Date/Time:
April 22, 2014   9:00am - 9:30am
 
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Nanodiamond powder produced by detonation synthesis is the most promising nanofiller for composites [1]. It is made of diamond particles of ~5 nm in diameter, combining fully accessible surface with a rich and tailorable surface chemistry. Nanodiamond has unique optical, electrical, thermal, and mechanical properties, and is biocompatible and non-toxic. In order to fully benefit from the potential of nanodiamond in nanocomposites, several important issues must be addressed, such as uniformity of nanodiamond dispersion in the matrix, nanodiamond-matrix interface, and the properties of the polymer interphase formed in the vicinity of nanoparticles. These issues can be addressed by different purification, dispersion, and surface modification strategies. Covalent linking of hydrophobic molecules [2], improves dispersions of nanodiamond in hydrophobic polymers. Reactions of nanodiamond functional groups with the polymer matrix can be used to design a nanofiller-matrix interface and produce a significant volume of interphase in the composite [3]. The interphase formation depends on how nanodiamond changes the structure of polymer in the vicinity of the nanoparticle [4]. Incorporation of nanodiamond into polymers may improve their mechanical properties, thermal conductivity, UV-absorption, and other properties in many practical applications.1. Mochalin, V. N.; Shenderova, O.; Ho, D.; Gogotsi, Y., The properties and applications of nanodiamonds. Nature Nanotechnology 2012, 7, 11-23.2. Mochalin, V. N.; Gogotsi, Y., Wet Chemistry Route to Hydrophobic Blue Fluorescent Nanodiamond. Journal of the American Chemical Society 2009, 131, 4594-4595.3. Mochalin, V. N.; Neitzel, I.; Etzold, B. J. M.; Peterson, A.; Palmese, G.; Gogotsi, Y., Covalent Incorporation of Aminated Nanodiamond into an Epoxy Polymer Network. ACS Nano 2011, 5, 7494-7502.4. Guo, S.; Solares, S. D.; Mochalin, V.; Neitzel, I.; Gogotsi, Y.; Kalinin, S. V.; Jesse, S., Multifrequency imaging in the intermittent contact mode of atomic force microscopy: beyond phase imaging. Small 2012, 8, 1264-9.
 


 
 
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