Fibers and Polymers

, Volume 18, Issue 10, pp 1841–1847 | Cite as

Preparation of bio-polyurethane using castor oil and antibacterial hybrid films thereof with silver-doped hydroxyapatite



The hybrid films of bio-polyurethane (Bio-PU) and silver-doped hydroxyapatite (HA-Ag) for breathable and antibacterial textile applications. The Bio-PU was synthesized using a mixture of castor oil based polyol with petroleum based poly(ethylene glycol). Silver doping to hydroxyapatite(HA) was carried out through ion exchange mechanism between calcium ion in HA and silver ion (Ag+) in aqueous solution of AgNO3. The concentration of Ag+ was controlled to 100-300 ppm. The existence of silver in HA was proved using SEM-EDS while the silver doping amount was estimated by measuring residual concentration of Ag+ after doping using ICP-OES. It was found that the hybrid films exhibited excellent antibacterial activity against bacteria of S. aureus and K. pneumonia by showing 99.9 % reduction of bacteria.


Biomass-based polyol Castor oil Bio-polyurethane Hydroxyapatite Silver doping Antibacterial activity 


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Copyright information

© The Korean Fiber Society and Springer Science+Business Media B.V. 2017

Authors and Affiliations

  1. 1.Department of Materials and Design EngineeringKumoh National Institute of TechnologyGumiKorea

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