An enhancement on water absorbing and permeating abilities of acrylic acid grafted and chitosan/collagen immobilized polypropylene non-woven fabric: Chitosan obtained from Mucor

The wound dressing of acrylic acid-grafted and chitosan/collagen-immobilized polypropylene non-woven fabric (PP–AAg–CCi) were produced. In this study, two kinds of chitosan obtained from the nourishment of Mucor (m-chitosan) and from commerce (c-chitosan) were used for comparison. It was found that the values of water absorbing and water diffusion coefficient for m-chitosan sample (PP–AAg–CmCi) were significantly higher than that for c-chitosan sample (PP–AAg–CcCi). The enhanced percentage on water absorbing value and water diffusion coefficient for PP–AAg–CmCi sample increased with the increasing of chitosan contained in the mixture of chitosan/collagen. The surface of the PP–AAg–CcCi sample was smooth; however, the surface of the PP–AAg–CmCi sample was rough and cracky/loose. The higher water adsorption and water diffusion properties were caused by the nature of agent for the PP–AAg–CmCi sample. The hydroxyl group contained on m-chitosan, which was prepared in this study, was higher than that contained on c-chitosan. The anti-bacterial properties of the PP–AAg–CmCi and PP–AAg–CcCi samples were all excellent. The products of the multi-layer material of PP–AAg–CmCi were expected to provide better services for wound dressing.