摘要

To avoid the separation of nanofiber mats and substrates during post-processing, the substrate was pretreated by plasma before electrospinning. Polyvinyl alcohol (PVA) nanofiber mats were deposited on the habutae, polyester-taffeta, and nylon-taffeta fabrics by a needless electrospinning setup with spiral disk spinnerets. The effects of plasma treatment on the adhesion of electrospun PVA nanofibrous composite fabrics were studied. The aerosol particles protective performance and wearabilities were also investigated as a function of the thickness of electrospun PVA nanofiber mat. Results showed that the surface nanoscale concave-convex roughness of substrate fabric was formed after oxygen plasma treatment. The peeling strength and peeling energy increased with the increase in surface roughness in a limited range. The peeling energy of PVA/nylon-taffeta enhanced to 2.97 times when nylon-taffeta treated by oxygen plasma at 200W for 3min. The aerosol particle filtration efficiency enhanced with the increase in electrospinning time, and the quality factor of PVA/nylon-taffeta was the highest with electrospinning for 10min. Simultaneously, the air permeability and the water vapor transmission rate of PVA/nylon-taffeta decreased with the increase in electrospinning time, whereas the drape coefficient increased.