Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A

In this study, the modified ultraviolet (UV) curable waterborne polyurethane was obtained from isophorone diisocyanate (IPDI), polyethylene glycol (PEG, MW=600), α,α-dimethylol propionic acid (DMPA), hydroxyethyl acrylate (HEA) and bisphenol A. The rigid moiety was introduced into...

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Format: Article
Language:English
Published: Budapest University of Technology 2010-11-01
Series:eXPRESS Polymer Letters
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Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0001678&mi=cd
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collection DOAJ
description In this study, the modified ultraviolet (UV) curable waterborne polyurethane was obtained from isophorone diisocyanate (IPDI), polyethylene glycol (PEG, MW=600), α,α-dimethylol propionic acid (DMPA), hydroxyethyl acrylate (HEA) and bisphenol A. The rigid moiety was introduced into the main chain of polyurethane to improve its heat-resistance. The copolymer structure was confirmed by Fourier transform infrared spectroscopy (FT-IR). Thermal property and UV curable behavior of the coatings were investigated. The glass transition temperature (Tg) of the modified film was determined by differential scanning calorimetry (DSC). Thermal gravimetric analysis (TGA) was employed to investigate the thermal stability of the modified film. The results show that the average particle diameters increased from 69.25 to 95.12 µm as the content of bisphenol A increased from 0.00 to 9.25%. The optimum bisphenol A dosage was 7.23% (wt%), the Tg of the modified film increased by 7.07°C and 5% weight-loss temperature (233°C) increased by 14°C. The optimum irradiation time was 10–20 minutes after the coatings being painted on an armor plate at room temperature and initiator dosage was 5% (wt%) of the latex.
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spelling doaj.art-eebb619d09cc4aa9ac7eb926634eada42022-12-21T19:59:06ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2010-11-0141170471110.3144/expresspolymlett.2010.85Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol AIn this study, the modified ultraviolet (UV) curable waterborne polyurethane was obtained from isophorone diisocyanate (IPDI), polyethylene glycol (PEG, MW=600), α,α-dimethylol propionic acid (DMPA), hydroxyethyl acrylate (HEA) and bisphenol A. The rigid moiety was introduced into the main chain of polyurethane to improve its heat-resistance. The copolymer structure was confirmed by Fourier transform infrared spectroscopy (FT-IR). Thermal property and UV curable behavior of the coatings were investigated. The glass transition temperature (Tg) of the modified film was determined by differential scanning calorimetry (DSC). Thermal gravimetric analysis (TGA) was employed to investigate the thermal stability of the modified film. The results show that the average particle diameters increased from 69.25 to 95.12 µm as the content of bisphenol A increased from 0.00 to 9.25%. The optimum bisphenol A dosage was 7.23% (wt%), the Tg of the modified film increased by 7.07°C and 5% weight-loss temperature (233°C) increased by 14°C. The optimum irradiation time was 10–20 minutes after the coatings being painted on an armor plate at room temperature and initiator dosage was 5% (wt%) of the latex.http://www.expresspolymlett.com/letolt.php?file=EPL-0001678&mi=cdCoatingswaterborne polyurethanebisphenol Amodificationheat-resistant
spellingShingle Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
eXPRESS Polymer Letters
Coatings
waterborne polyurethane
bisphenol A
modification
heat-resistant
title Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
title_full Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
title_fullStr Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
title_full_unstemmed Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
title_short Preparation and characterization of the heat-resistant UV curable waterborne polyurethane coating modified by bisphenol A
title_sort preparation and characterization of the heat resistant uv curable waterborne polyurethane coating modified by bisphenol a
topic Coatings
waterborne polyurethane
bisphenol A
modification
heat-resistant
url http://www.expresspolymlett.com/letolt.php?file=EPL-0001678&mi=cd