Measurement of Adhesion Work of Electrospun Polymer Membrane by Shaft-Loaded Blister Test

摘要

The work of adhesion at the interface of electrospun membrane and rigid substrate isnmeasured by a shaft-loaded blister test (SLBT). Poly(vinylidene fluoride) (PVDF) were electrospunnwith an average fiber diameter of 333 ± 59 nm. Commercial cardboard with inorganic coating wasnused to provide a model substrate for adhesion tests. In SLBT, the elastic response PVDF wasnanalyzed and its adhesion energy measured. The average value of the adhesion work is 206 ± 26nmJ/m2. Elastic modulus of electrospun membrane obtained by SLBT is found to be 23.42 ± 2.69nMPa, which is consistent with the value obtained from standard tensile tests. The results shownSLBT presented a viable methodology for evaluating the adhesion energy of electrospun polymernfabrics.