Influence of nanosilica/polyurethane composite coating on IR effectiveness and visible light transmission properties of polyethylene

Chee, Ching Yern and Yaacob, Iskandar Idris (2010) Influence of nanosilica/polyurethane composite coating on IR effectiveness and visible light transmission properties of polyethylene. Advanced Materials Research, 97-101. pp. 1669-1672. ISSN 1022-6680

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Abstract

Polyethylene (PE) film was coated with nanosilica-polyurethane layer using rod Mayer process. The nanosilica-polyurethane system was prepared by dispersing nanosilica (SiO2) powder into solvent borne polyurethane (PU) binder under vigorous stirring. Various compositions of nanosilica-polyurethane slurry were prepared. A battery of characterization procedures were used to study the properties of the nanocomposite coating. ATR FTIR confirmed the presence of functional groups of silica and polyurethane. The uniformity of silica dispersion was probed using scanning electron microscopy (SEM). With the introduction of nanosilica to polyurethane binder, the visible light transmittance and ultra-violet (UV) radiation of nanosilica-polyurethane system reduced with increasing nanosilica content and coating layer thickness. The PE coated with nanocomposite containing 14wt% nanosilica and with 8 μm coating thickness showed >88% transmittance in the visible light region. Infrared (IR) effectiveness (between 7 μm to 13 μm wavelengths) measurements by FTIR also showed that nanosilica/polyurethane system coating on PE film surface greatly improved the infrared opacity properties of PE film. © (2010) Trans Tech Publications.

Item Type:	Article (Journal)
Additional Information:	6524/16405
Uncontrolled Keywords:	Coating; Infrared effectiveness; Nanocomposite; Nanosilica; Polyurethane
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Maryam Hijrah Samsuri (PT)
Date Deposited:	01 Feb 2012 10:24
Last Modified:	01 Feb 2012 10:24
URI:	http://irep.iium.edu.my/id/eprint/16405

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