Accession Number : ADA494000


Title :   Transparent Nanoporous Glass-Polymer Composite for U.S. Army Applications


Descriptive Note : Final rept. Oct 2005-Sep 2006


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD


Personal Author(s) : O'Brien, Daniel J ; Juliano, Thomas F ; Patel, Parimal J ; McKnight, Steven H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a494000.pdf


Report Date : Oct 2008


Pagination or Media Count : 22


Abstract : This report explores the manufacturing of a novel transparent polymer-glass composite. The material is created by infiltrating nanoporous glass (Vycor, Corning Inc.) with different polymers. The Vycor pores (4-6 nm) are much smaller than the wavelength of light thus, refractive index matching with the polymer is not necessary for transparency. Close to 90% of the pore volume can be filled by soaking the porous glass in methyl methacrylate and polymerizing in situ. The resulting composite is 95% transparent with excellent clarity, extremely low haze, and an elastic modulus that is well predicted by micromechanics.


Descriptors :   *GLASS , *POLYMERS , POLYMERIZATION , MODULUS OF ELASTICITY , REFRACTIVE INDEX , POROUS MATERIALS , ARMOR , METHACRYLATES , MICROMECHANICS , HAZE , MILITARY APPLICATIONS


Subject Categories : Laminates and Composite Materials


Distribution Statement : APPROVED FOR PUBLIC RELEASE