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comparison of properties of aromatic and aliphatic polyurethane coatings
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DOR
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20.1001.2.0021079099.1400.8.1.111.1
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نویسنده
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khajesalehani f. ,mohammadzadehattar m.r.
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منبع
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كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
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چکیده
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Polyurethane coatings based on aliphatic (n75) and aromatic (mdi) was applied to glass plates; then it was exposed to atmospheric environments and some of its properties such as gloss and hardness were closely studied and compared. both aliphatic and aromatic samples had a gloss value a bove 100 and generally showed a decrease in gloss during 47 days of exposure meanwhile the aromatic samples show less decline. both aliphatic and aromatic samples had hardness value a bove 100 and had a decent level of hardness. the hardness' increasing ratio was similar in both, but in the aliphatic sample there was a graeter increase in hardness.
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کلیدواژه
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polyurethane ,aliphatic ,aromatic ,gloss ,hardness
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آدرس
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amirkabir university of technology, iran, amirkabir university of technology, department of polymer eng. and color tech, iran
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پست الکترونیکی
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attar@aut.ac.ir
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Comparison of properties of aromatic and aliphatic polyurethane coatings
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Authors
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Mohammadzadehattar M.R.
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Abstract
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Polyurethane coatings based on aliphatic (N75) and aromatic (MDI) was applied to glass plates; Then it was exposed to atmospheric environments and some of its properties such as gloss and hardness were closely studied and compared. Both aliphatic and aromatic samples had a gloss value a bove 100 and generally showed a decrease in gloss during 47 days of exposure meanwhile the aromatic samples show less decline. Both aliphatic and aromatic samples had hardness value a bove 100 and had a decent level of hardness. The hardness' increasing ratio was similar in both, but in the aliphatic sample there was a graeter increase in hardness.
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Keywords
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Polyurethane ,aliphatic ,aromatic ,gloss ,hardness
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