Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings
In this work it is suggested to modify trimethylolpropane ethoxylate triacrylate (TMPETA) with solvent born difunctional urethane acrylate oligomer (UA) of hyperbranched structure and high molecular weight. In this case the photopolymer composition initial UV-precuring was replaced by thermal action...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2011-11-01
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| Series: | Medžiagotyra |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/772 |
| _version_ | 1828839257024757760 |
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| author | Asta MILINAVIČIŪTĖ Virginija JANKAUSKAITĖ Pranas NARMONTAS |
| author_facet | Asta MILINAVIČIŪTĖ Virginija JANKAUSKAITĖ Pranas NARMONTAS |
| author_sort | Asta MILINAVIČIŪTĖ |
| collection | DOAJ |
| description | In this work it is suggested to modify trimethylolpropane ethoxylate triacrylate (TMPETA) with solvent born difunctional urethane acrylate oligomer (UA) of hyperbranched structure and high molecular weight. In this case the photopolymer composition initial UV-precuring was replaced by thermal action. Under heating at 70<sub> </sub>°C temperature solvent (butyl acetate) evaporates and layer with proper deformation properties for microrelief embossing was obtained. After microrelief embossing UV-curing of photopolymer follows and photoinitiator initiated radical photopolymerization of TMPETA monomer and UA oligomer proceeds. The goal of this work - to investigate the influence of the acrylic composition on the UV-cured coating mechanical properties and on the geometrical parameters and optical properties of replicated microrelief. It was defined that coatings with UA oligomer possess higher deformation and mechanical properties due to the increase in layer flexibility. The replicated microrelief of geometrical parameters and diffraction efficiency close to those of master matrix to be used was obtained using compositions containing 30 wt.<sub> </sub>%<sub> </sub>-<sub> </sub>40 wt.<sub> </sub>% of UA.<p><a href="http://dx.doi.org/10.5755/j01.ms.17.4.772">http://dx.doi.org/10.5755/j01.ms.17.4.772</a></p> |
| first_indexed | 2024-12-12T19:19:27Z |
| format | Article |
| id | doaj.art-9e5a4179ac0e4cdfbebf6e038c993b47 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-12T19:19:27Z |
| publishDate | 2011-11-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-9e5a4179ac0e4cdfbebf6e038c993b472022-12-22T00:14:38ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892011-11-0117437838310.5755/j01.ms.17.4.772662Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer CoatingsAsta MILINAVIČIŪTĖ0Virginija JANKAUSKAITĖ1Pranas NARMONTAS2Kaunas University of TechnologyKaunas University of TechnologyKaunas University of TechnologyIn this work it is suggested to modify trimethylolpropane ethoxylate triacrylate (TMPETA) with solvent born difunctional urethane acrylate oligomer (UA) of hyperbranched structure and high molecular weight. In this case the photopolymer composition initial UV-precuring was replaced by thermal action. Under heating at 70<sub> </sub>°C temperature solvent (butyl acetate) evaporates and layer with proper deformation properties for microrelief embossing was obtained. After microrelief embossing UV-curing of photopolymer follows and photoinitiator initiated radical photopolymerization of TMPETA monomer and UA oligomer proceeds. The goal of this work - to investigate the influence of the acrylic composition on the UV-cured coating mechanical properties and on the geometrical parameters and optical properties of replicated microrelief. It was defined that coatings with UA oligomer possess higher deformation and mechanical properties due to the increase in layer flexibility. The replicated microrelief of geometrical parameters and diffraction efficiency close to those of master matrix to be used was obtained using compositions containing 30 wt.<sub> </sub>%<sub> </sub>-<sub> </sub>40 wt.<sub> </sub>% of UA.<p><a href="http://dx.doi.org/10.5755/j01.ms.17.4.772">http://dx.doi.org/10.5755/j01.ms.17.4.772</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/772 |
| spellingShingle | Asta MILINAVIČIŪTĖ Virginija JANKAUSKAITĖ Pranas NARMONTAS Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings Medžiagotyra |
| title | Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings |
| title_full | Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings |
| title_fullStr | Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings |
| title_full_unstemmed | Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings |
| title_short | Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings |
| title_sort | properties of uv curable hyperbranched urethane acrylate modified acrylic monomer coatings |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/772 |
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