Back to Search
Start Over
Cytotoxicity and mechanical behavior of chitin–bentonite clay based polyurethane bio-nanocomposites
- Source :
-
International Journal of Biological Macromolecules . Dec2011, Vol. 49 Issue 5, p1131-1136. 6p. - Publication Year :
- 2011
-
Abstract
- Abstract: Chitin based polyurethane bio-nanocomposites (PUBNC) were prepared using chitin, Delite® HPS bentonite nanoclay enriched in montmorillonite (MMT), 4,4′-diphenylmethane diisocyanate (MDI) and polycaprolactone polyol CAPA 231 (3000g/mol−1). The prepolymers having different concentration of Delite HPS bentonite nanoclay were extended with 2moles of chitin. The structures of the resulted polymers were determined by FT-IR technique. The effect of nanoclay contents on mechanical properties and in vitro biocompatibility was investigated. The mechanical properties of the synthesized materials were improved with increase in the Delite HPS® bentonite nanoclay contents. Optimum mechanical properties were obtained from the PU bio-nanocomposite samples having 4% Delite HPS® bentonite nanoclay. The results revealed that the final PU bio-nanocomposite having 2% Delite HPS® bentonite nanoclay contents is ideal contenders for surgical threads with on going investigations into their in vitro biocompatibility, non-toxicity, and mechanical properties. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01418130
- Volume :
- 49
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- International Journal of Biological Macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 66768932
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2011.09.010