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Proceedings Paper

Research of water-base nano-PU paint for heat insulation
Author(s): Ching-Song Jwo; Lung-Yue Jeng; Ho Cheng; Sih-Li Chen
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Paper Abstract

The purpose of this study is to research and produce water-base nano-PU paint with energy conservation, environmental consciousness and high efficiency of heat insulation, which can be enhance the traditional PU paint for performance improvement of heat insulation and range of application. In this study, research will be held on the two-stage synthesis method. The SiO2 nanoparticles are added into the water-base PU paint to improve the properties of traditional PU paint. Next, the fundamental properties of this paint, including water resistance, weather rsistance, weak acid solvent resistance, and heat insulation rate, will be measured and analyzed, and the performance of heat insulation will be evaluated in order to confirm the performance and practicability of the heat insulation of water-base nano-PU paint in this study. The experimental results show that for the SiO2/W-PU composite nanopaint prepared by two-stage synthesis method, the dispersion of SiO2 powder in the water-base PU (W-PU) paint is even. For the SiO2/W-PU nanocomposite paint prepared by adding SiO2 powder at 8% wt. to the marketed water-base PU, the water absorption of its experimental sample is enhanced by around 10.1 times, whereas its weak acid dissolve erosion rate is increased by 3.3 times. However, the average heat insulation rate in the thermal properties is also increased, increasing around 24.22% for the W-PU paint without SiO2 powder. Through the multilayered coating construction, the water-base nano-PU paint added with SiO2 powder can be used on any facility of heat insulation, including vehicle, safety helmet, umbrella, drapes, and outer wall of building. The newly developed water-base nano-PU paint with high thermal resistance is especially suitable for application to the shell coating of air conditioner and cooling tower,. Due to the better thermal resistance of this nanopaint, the problems of poor heat transfer and temperature rise of cooling water caused by direct sunlight can be improved. This is of great help to the energy conservation of air conditioning system.

Paper Details

Date Published: 31 December 2008
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71300L (31 December 2008); doi: 10.1117/12.819557
Show Author Affiliations
Ching-Song Jwo, National Taipei Univ. of Technology (Taiwan)
Lung-Yue Jeng, National Taipei Univ. of Technology (Taiwan)
Ho Cheng, National Taipei Univ. of Technology (Taiwan)
Sih-Li Chen, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)

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