title: Tensile testing of a single ultrafine polymeric fiber.
abstract: Due to the difficulty in handling micro and nanoscale fibers and measuring the small load required for deformation, mechanical properties of these fibers have not been widely characterized. In this study, tensile test of a single-strand polycaprolactone electrospun ultrafine fiber was performed using a nano tensile tester. The tested fiber exhibited the characteristic low strength and low modulus but high extensibility at room temperature. The mechanical properties were also found to be dependent on fiber diameter. Fibers with smaller diameter had higher strength but lower ductility due to the higher 'draw ratio' that was applied during the electrospinning process.
authors.affiliation: Nano Biomechanics Laboratory, Division of Bioengineering, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
authors.forename: E P S
authors.initials: EP
authors.lastname: Tan
authors.forename: S Y
authors.initials: SY
authors.lastname: Ng
authors.forename: C T
authors.initials: CT
authors.lastname: Lim
mesh_terms: D001672:Biocompatible Materials / Q000032:analysis / Q000737:chemistry*; D004548:Elasticity; D004563:Electrochemistry / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing / Q000295:instrumentation* / Q000379:methods*; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D010812:Physical Stimulation / Q000379:methods; D011091:Polyesters / Q000032:analysis / Q000737:chemistry*; D013314:Stress, Mechanical; D013718:Tensile Strength; D013784:Textiles
chemical_list: D001672:Biocompatible Materials; D011091:Polyesters; C016240:polycaprolactone