Influence of pigment properties on UV‐curing efficiency |
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| Authors: | Lavinia Macarie Gheorghe Ilia |
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| Affiliation: | 1. Institute of Chemistry Timisoara of Romanian Academy, 300223 Timisoara, Romania;2. Faculty of Chemistry, Biology and Geography, West University, 300115 Timisoara, Romania |
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| Abstract: | The curable formulations containing monomer‐diacrylate, photoinitiator‐p‐methoxybenzoyldiphenylphosphine oxide/benzyldimethylketal, additive reactive‐triethylamine, and inorganic thermoresistant pigments‐white, red, green, and blue were cured by UV exposure films. A series of experiments was carried out to investigate the relationship between the particle size distribution of the inorganic pigment and the colorimetric and mechanical properties of the UV acrylic curable coatings. Pendulum hardness and appearance of the films depend on the content and particle size distribution of the pigment. Optimal particle size distribution and pigment content were established to obtain the best films concerning their pendulum hardness and chromatic parameters. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 247–252, 2007 |
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| Keywords: | UV curable formulation pigmented coatings photoinitiators film properties |
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