Film formation of coatings studied by diffusing-wave spectroscopy
Film formation of coatings studied by diffusing-wave spectroscopy
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DOI：
10.1016/j.porgcoat.2007.09.041
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发表时间：
2008-02-01
影响因子：
6.6
通讯作者：
Brunel, L.
中科院分区：
文献类型：
--
作者：
Brun, A.;Dihang, H.;Brunel, L.
如今，涂料行业面临着环境法规的不断发展、可疑有毒成分或溶剂的强制替代以及对性能改进的持续需求。新配方采用了新的成膜工艺，影响了涂料的性能和外观。我们使用基于扩散波谱的新光学技术研究了几种涂料体系（水基和溶剂型）的成膜工艺。这种独特而简单的技术可以对适当基材（混凝土、金属、塑料、木材等）上的干燥过程进行非侵入式监控。实时显示的成膜动力学提供了发生机制（蒸发、保压等）的连续步骤的新视角，以及有关干燥时间（例如开放时间）的准确信息，以深入表征成膜过程。 (C) 2007 Elsevier B.V. 保留所有权利。
The coating industry is facing nowadays a growth in environmental regulations, and imposed substitution of suspected toxic components or solvents and a constant need for improving performances. The new formulations undergo new film-formation processes, influencing the coating performance and appearance.We have studied the film-formation process of several coating systems (water-based and solvent-based) using a new optical technology based on diffusing-wave spectroscopy. This unique and simple technique allows a non-intrusive monitoring of the drying process on the appropriate substrate (concrete, metal, plastic, wood, etc.). The kinetics of film formation, displayed in real-time, provide a new vision of the successive steps of the mechanisms taking place (evaporation, packing, etc.) as well as accurate information on drying times such as open-time, for an in-depth characterization of the film-formation process. (C) 2007 Elsevier B.V. All rights reserved.