Effect of precipitated calcium carbonate additions on waterborne paints at different pigment volume concentrations |
| |
| Affiliation: | 1. School of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang Economical and Technological Development Zone, Street No. 11, Shenyang 110142, China;2. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;3. Department of Chemical Engineering, Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Genting Kelang, 53300 Setapak, Kuala Lumpur, Malaysia;4. Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70148, USA;1. CONICET, Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT)-CICBA-CONICET, La Plata, Argentina;2. Universidad Nacional de La Plata, La Plata, Argentina;3. Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico;1. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 4, 412 96 Gothenburg, Sweden;2. Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, 412 96 Gothenburg, Sweden;3. Department of Industrial and Materials Science, Chalmers University of Technology, Hörsalsvägen 7B, 412 58 Gothenburg, Sweden;4. RISE Research Institutes of Sweden, The Unit of Surface, Process and Formulation, Drottning Kristinas Väg 45, 114 28 Stockholm, Sweden;5. AkzoNobel Decorative Paints Global Research & Development Open Innovation, AkzoNobel Decorative Paints, Wexham Road, Slough Berkshire, SL2 5DS, UK;1. CEMUC, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal;2. CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;3. Resiquímica − Resinas Químicas, S.A., Lisboa, Portugal |
| |
| Abstract: | Titanium dioxide (TiO2) due to its high refractive index, is widely used in paint industry as a white pigment. In order to reduce this high cost of TiO2, a part of TiO2 is generally substituted by some other industrial mineral fillers such as calcite and calcined kaolin; however, this substitution affects the quality of paints in terms of stability, coverage (opacity), brightness (gloss), scrub resistance (film toughness), etc. In the present paper, precipitated calcium carbonate (PCC) was substituted for TiO2 in paint mixture at three different pigment volume concentrations (PVC). It was observed that substitution of TiO2 by PCC depends on PVC value at which there is an optimum PCC amount. The quality of paints produced by PCC along with its rheological properties was evaluated based on standard features in both wet and dry paints such as viscosity, density, opacity and gloss values. Addition of PCC increases the opacity to a certain point. Similarly, scrub resistance and viscosity increases with the addition of PCC at all PVCs, however, viscosity is not as much critical for the paint production. On the other hand, there is no any systematic effect of PCC on gloss value of the paint. This study overall demonstrates that PCC can be successfully used to substitute TiO2 only with a careful adjustment of PVC and other extenders used in the paint formulation. |
| |
| Keywords: | Calcite Waterborne paint |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
