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A PVA nanofibrous matrix was prepared by electrospinning an aqueous 10wt% PVA solution. The mean diameter of the PVA nanofibers electrospun from the aqueous PVA solution was 240nm. The water resistance of the as-spun PVA nanofibrous matrix was improved by physically crosslinking the PVA nanofibers by heat treatment at 150°C for 10min. In addition, the heat-treated PVA nanofibrous matrix was coated...
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