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KMID : 0385520110240030168
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Analytical Science & Technology
2011 Volume.24 No. 3 p.168 ~ p.172
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Characteristics study on fire-resistant paint used by TGA-IR
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Cho Nam-Wook
Shin Hyun-Jun
Cho Won-Bo
Lee Seong-Hun
Rie Dong-Ho
Kim Hyo-Jin
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Abstract
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The iron frame of building could be collapsed or bent at 500 ℃. Therefore the fire-resistant paint should be applied for safety. This study performed the comparative analysis to show the characteristics of fireresistant paint. And then 12 products of fire resistant paint and 6 products of paints were used as samples. And the samples were analyzed by TGA (Thermogravimetric Analyzer) as analyzer for measuring the variation of weight on temper of weight by heating. When TGA analyzer could measure the variatiature, and FT-IR was measured for analyze gas components on variation on of weight by heating on 12 products of fire resistance, the samples showed to decrease 40% of weight to 800 ℃, and because paints had 50% to 40% of loss weight, it showed to be equal with loss weight of fire resistance paint on high temperature or was lower loss weight than it of fire resistance paints. However number 6 sample of fire resistance paints could show to decrease 20% of total weight on 800 ℃. And then in the case of FT-IR, fire resistance paints could show to have the high intensity of CO₂ spectrum as complete combustion. However paints could show to have the lower intensity of CO₂ spectrum, have the higher intensity of water spectrum. Therefore the TGA graph of result could be much different until 250 ℃. When it was burned, FT-IR spectrum could show to confirm the characteristics of fire resistance paints, and the characteristic could be confirmed on inorganic paint of fire resistance by weight loss of TGA.
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KEYWORD
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fire-resistant paint, TGA, FT-IR, thermogram
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