Optical-guiding properties of polyurethane coatings based on polyester polyol
β Scribed by A. L. Dawar; J. C. Joshi; N. K. Bishambhu; K. N. Tripathi; A. Mansingh
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 290 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0261-8028
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## Abstract Polyesterβbased polyurethanes with embedded nanosilica particles were prepared. The viscosity of polyester resins without and with nanosilica was determined by rheoviscometry. The morphology and mechanical and optical properties of the polyurethane coatings were studied intensively with
Polyurethane (PU) anionomers were prepared as aqueous dispersions using dimethylol propionic acid (DMPA) as the stabilizing moiety. The principal diols used were polytetrahydrofuran of molecular weight 1000 (PTHF1000) and cyclohexane dimethanol (CHDM). The diisocyanates used in this study were isoph