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Biopolymer doped with titanium dioxide superhydrophobic photocatalysis as self-clean coating for lightweight composite

Mohd Rus, Anika Zafiah and Mohid, S.R. and Nurulsaidatulsyida, S. and Marsi, N. (2013) Biopolymer doped with titanium dioxide superhydrophobic photocatalysis as self-clean coating for lightweight composite. Journal of Advanced of Materials and Engineering, 2013. ISSN 1687-8442

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Abstract

The development of a lightweight composite (LC) based on Portland cement concrete with waste lightweight aggregate (WLA) additive was carried to improved the sustainability and environmental impact and to offer potential cost savings without sacrificing strength. Treatment of the LC exposed to environmental attack by coating with biopolymer based on waste cooking oil doped with titanium dioxide photocatalysis (TOP) with superhydrophilic property was found to affect the mechanical properties of the LC in a systematic way. The result of compressive strength showed that the composite achieved the minimum required strength for lightweight construction materials of 17.2 MPa. Scratch resistance measurements showed that the highest percentages loading of superhydroplhilic particles (up to 2.5% of biomonomer weight) for LC's surface coating gave the hihgest scratch resistance while the uncoated sample showed the least resistances. Scanning electron microscope (SEM) pictures revealed the difference between the surface roughness for LC with and without TOP coating. TOP is also formulated to provide self-cleaning LC surfaces based on two principal ways: (1)the development by coating the LC with a photocatalysis superhydrophilic, (2)if such a superhydrophilic is illuminated by light, the grease, dirt, and organic contaminants will be decomposed and can easily be swept away by rain.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 26 Jun 2013 08:19
Last Modified: 21 Jan 2015 08:29
URI: http://eprints.uthm.edu.my/id/eprint/3959
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