Environmental Friendly Aqueous-based PU Hybrids for Water-repellent Textile Treatment
| Autor: | Mei-Ting Lu, 盧梅婷 |
|---|---|
| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 A oleic-acid containing aqueous-based polyurethane (PU) has been prepared by conventional method with a multi-aziridine curing agent (TMPTA-AZ); A PDMS-containing aqueous-based PU has been also prepared by conventional method. PU hybrids are obtained from blending these two resins in different ratios and then cured with TMPTA-AZ. A water-repellent PET textile is obtained by the treatment of these aqueous-based PU hybrids by dipping process. Aqueous PU is self-cured on drying and resulted in the formation of cross-linked interpenetrating network (IPN).The hydrophobic PU anchored into fabric fibers and that enhanced the water-washing durability. This treated water-repellent textile (PET) has a static water contact angle over 120°and sliding angle below 20°and wetting time over 60 minutes and still maintain its original water repellency after 50 water washing cycles. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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