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Spray Application of Low-VOC Coatings Using Supercritical Fluids
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Abstract
New spray application technology has been developed that uses supercritical carbon dioxide to replace the volatile solvents in conventional low-solids and high-solids coatings so that volatile organic compound (VOC) emissions can be reduced by 50 to 80% with existing polymer systems. The spray is formed by a new atomization mechanism that gives air spray quality from an airless system. Thermosetting, thermoplastic, air-dry, and two-package polymer systems have been demonstrated in clear, pigmented, and metallic form for applications such as automotive components, clear coats, base coats, chip-resistant coats, and automobile refinish.
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Authors
- Kenneth A. Nielsen - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- David C. Busby - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- Charles C. Glancy - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- Kenneth L. Hoy - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- Alex C. Kuo - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- Chinsoo Lee - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
- Kenneth M. Perry - Union Carbide Chemicals and Plastics Co., Inc. South Charleston, WV
Citation
Nielsen, K., Busby, D., Glancy, C., Hoy, K. et al., "Spray Application of Low-VOC Coatings Using Supercritical Fluids," SAE Technical Paper 910091, 1991, https://doi.org/10.4271/910091.Data Sets - Support Documents
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