Effect of cellulose acetate butyrate molecular weight and acrylic binder type on the orientation of aluminum effect pigments

This work is devoted to the study of the influence of the molecular weight of cellulose acetobutyrate (CAB) and the nature of the acrylic binder on the orientation of aluminum effect pigments in two-component polyurethane coatings. The results of the conducted studies show the need to select CABS based on the rheological response of a specific pigmented system, and a correlation has also been established between the rheological profile of the system and its decorative characteristics.

1. Wissling Р. Metallic Effect Pigments: Fundamentals and Applications. Hannover: Vincentz Network, 2006.

2. Sung L.-P., Nadal M.E., McKnight M.E., Marx E., Laurenti B. Optical reflectance of metallic coatings: effect of aluminum flake orientation // Journal of Coatings Technology. 2002. Vol. 74, No. 932. P. 55-63.

3. Alman D.H. Directional color measurement of metallic Hake finishes // Proceedings of the ISCC Williamsburg Conference on Appearance. Williamsburg, 1987. P. 53-56.

4. ASTM E2194-14(2021). Standard Test Method for Multiangle Color Measurement of Metal Flake Pigmented Materials. West Conshohocken: ASTM International, 2021.

5. ISO 18314-3:2022. Analytical colorimetry — Part 3: Special indices. Geneva: International Organization for Standardization, 2022.

6. Eastman cellulose esters for formulated products. Technical brochure E-325. URL: https://www.nagase.com/content/dam/nagase-www/ja/products/cellulose-ester/pdf/E325.pdf (дата обращения 13.07.2026) .

7. Eastman cellulose acetate butyrate CAB-551-0.01. URL: https://www.eastman.com/en/products/product-detail/71001241/eastman-cellulose-acetate-butyrate-cab-551-001 (дата обращения 13.07.2026) .

8. Eastman cellulose acetate butyrate CAB-531-1. URL: https://www.eastman.com/en/products/product-detail/71001223/eastman-cellulose-acetate-butyrate-cab-531-1 (дата обращения 13.07.2026).

9. Eastman cellulose acetate butyrate CAB-381-0.1. URL: https://www.eastman.com/en/products/product-detail/71001226/eastman-cellulose-acetate-butyrate-cab-381-01 (дата обращения 13.07.2026) .

10. ГОСТ 25271-93 (ИСО 2555-89). Пластмассы, смолы жидкие, эмульсии или дисперсии. Определение кажущейся вязкости по Брукфильду. М.: Издательство стандартов, 1994.

11. Multi-angle Color Measurement. BYK-Gardner. URL: https://www.byk-instruments.com/support/knowledge/white-papers/color/effect-finishes (дата обращения 13.07.2026).