Chemically modified cellulose nanofibril as an additive for two-component polyurethane coatings
| Autor: | Riku Talja, Harri August Heikkinen, Sanna Virtanen, Sauli Vuoti, Saila Jämsä |
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| Rok vydání: | 2017 |
| Předmět: |
Nanocomposite
Materials science Polymers and Plastics Silylation 02 engineering and technology General Chemistry Permeation 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Solvent chemistry.chemical_compound chemistry Bacterial cellulose visual_art Materials Chemistry visual_art.visual_art_medium Composite material Cellulose 0210 nano-technology Lacquer Polyurethane |
| Zdroj: | Journal of Applied Polymer Science. 134 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.44801 |
| Popis: | The increasing demand for the use of sustainable materials in industrial applications has created an urge to develop technologies that enable the use of biopolymers such as cellulose for the improvement of properties of commercial products. In this study, the potential of the silyl functionalized cellulose nanofibrils (CNF) as a reinforcing additive for the water- and solvent-based two-component polyurethane (PU) lacquer coatings was evaluated. The addition of the silylated CNF improved the abrasion resistance, strength, and elasticity of the PU coatings. When using the silylated CNF as an additive, the adhesion of the PU coatings was retained. The oxygen permeation rate of the silylated CNF films was strongly influenced by the nature of the solvent. The silylated CNF showed potential as a reinforcing additive even at low loadings in the two-component PU lacquers. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 133, 44801. |
| Databáze: | OpenAIRE |
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