Do electrospun polymer fibers stick?
Langmuir
; 26(17): 14188-93, 2010 Sep 07.
Article
em En
| MEDLINE
| ID: mdl-20681738
ABSTRACT
Adhesion between electrospun polycaprolactone (PCL) fibers was directly measured in a cross-cylinder geometry using a nanoforce tensile tester. The surface roughness of fibers was determined by an atomic force microscope (AFM), and the structural factors were characterized by differential scanning calorimeter (DSC) and wide-angle X-ray diffraction (WAXD). "Pull-off" force was found to be in the order of 10(-6) N, and the adhesion energy was 190 +/- 7 mJ/m(2). Adhesion increases with decreasing fiber radius. The experimental data are analyzed by the classical Johnson-Kendall-Roberts (JKR) contact mechanics model. The study provides fruitful insights into future development of bio-inspired adhesives and devices.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poliésteres
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article