Effect of Additives on UV-activated Urethane Acrylate Polymerization Composite Coatings
| Autor: | Elīna Vindedze, Jana Simanovska, Ingmars Birks, Zane Grigale-Soročina, Martins Kalnins, Evita Brazdauska |
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| Rok vydání: | 2016 |
| Předmět: |
urethane acrylate
lcsh:TN1-997 Materials science Composite number coatings 02 engineering and technology engineering.material 01 natural sciences chemistry.chemical_compound UV-curable coatings photopolymerization urethane acrylate Coating 0103 physical sciences Ultimate tensile strength General Materials Science Cellulose Composite material lcsh:Mining engineering. Metallurgy 010302 applied physics UV-curable 021001 nanoscience & nanotechnology Gloss (optics) Photopolymer Polymerization chemistry photopolymerization engineering 0210 nano-technology Nitrocellulose |
| Zdroj: | Medžiagotyra, Vol 22, Iss 1, Pp 54-59 (2016) |
| ISSN: | 2029-7289 1392-1320 |
| DOI: | 10.5755/j01.ms.22.1.7442 |
| Popis: | An increased demand for new and improved coating systems, for environmental & health & safety and performance reasons, have appeared during the recent decades. Currently, there is new interest in preparation of thin UV curable urethane acrylate (UA) composite coatings with short-term properties. Cellulose based additives: nitrocellulose, cellulose acetate butyrate, sucrose benzoate and silica were evaluated to determine their influence on unreacted composite characteristics (viscosity, pigment suspension stability) and characteristics of cured film (ultimate tensile strength, elongation at break, surface gloss, surface scratch resistance and film adhesion loss time). The most suitable additive content was found to provide required viscosity. All additives increase surface scratch resistance, but cellulose based additives increase surface gloss values and decrease the time of adhesion loss. Silica has great effect on the interaction between linear and hyperbranched urethane acrylates, which has crucial influence on the stability of uncured pigmented mixture samples. |
| Databáze: | OpenAIRE |
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