@inproceedings{d5681512f51849d7b68fb0daa0eb2667,
title = "Particle-Induced X-ray Emission (PIXE) of silicate coatings on high impact resistance polycarbonates",
abstract = "Particle-Induced X-ray Emission (PIXE) analysis was employed to characterize hydroxypropyl methylcellulose (HPMC) C32 H60 O19 polymer film via areal density measurement on silicon-based substrates utilizing the differential PIXE concept, and compared with Rutherford backscattering spectrometry (RBS) results. It is demonstrated in this paper that PIXE and RBS measurements both yield comparable results for areal densities ranging from 1018 atom/cm2 to several 1019 atom/cm2. A collection of techniques including PIXE, RBS, tapping mode atomic force microscopy (TMAFM), and contact angle analysis were used to compute surface free energy, analyze surface topography and roughness parameters, determine surface composition and areal density, and to predict the water affinity and condensation behaviors of silicates and other compounds used for high impact resistance vision ware coatings. The visor surface under study is slightly hydrophilic, with root mean square of surface roughness on the order of one nm, and surface wavelength between 200 nm and 300 nm. Water condensation can be controlled on such surfaces via polymers adsorption. HPMC polymer areal density measurement supports the analysis of the surface water affinity and topography and the subsequent control of condensation behavior. HPMC film between 1018 atom/cm2 and 1019 atom/cm 2 was found to effectively alter the water condensation pattern and prevents fogging by forming a wetting layer during condensation.",
keywords = "Contact angle, ERD, NRS, PIXE, Polymer, RBS, SiO, Silicate, Surface free energy, TMAFM",
author = "Qian Xing and Hart, {M. A.} and Robert Culbertson and Bradley, {J. D.} and N. Herbots and Wilkens, {Barry J.} and Sell, {David A.} and Watson, {Clarizza Fiel}",
year = "2011",
doi = "10.1063/1.3586109",
language = "English (US)",
isbn = "9780735408913",
series = "AIP Conference Proceedings",
pages = "303--309",
booktitle = "Application of Accelerators in Research and Industry - Twenty-First International Conference, CAARI 2010",
note = "21st International Conference on Application of Accelerators in Research and Industry, CAARI 2010 ; Conference date: 08-08-2010 Through 13-08-2010",
}