374849 Micro-Textured Boron Nitride Nanoplatelet Modified Polyethylene Films

Monday, November 17, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Ozgun Ozdemir, Chemical Engineering, Clemson University, central, SC and Amod A. Ogale, Chemical and Biomolecular Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC

Linear low density polyethylene (LLDPE) micro-textured films filled with boron nitride nanoplatelets (BNNP) were produced by continuous melt extrusion. Nanoparticles displayed a significant extent of dispersion inside the matrix. The addition of BNNP led to 10-fold increase of the in-plane thermal conductivity (TC) of the nanocomposite (7.7 W/m.K vs 0.6 W/m.K for pure LLDPE), and 1.3-fold increase of through thickness TC. Micro-textured films were fabricated by a micro-patterned die to increase convective heat transfer rate as a consequence of increased surface area. Nanoplatelets were aligned parallel to the film machine direction. Film stiffness and tensile strength are comparable to the base LLDPE.

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