Thermal and Hygroscopic Properties of Polyacrylonitrile Electrospun Fiber Membranes Modified with Keratin Extracted from Waste Wool
This study investigates the thermal and hygroscopic properties of polyacrylonitrile(PAN)electrospun fiber membranes modified with keratin extracted from discarded wool.Utilizing PAN fibers,which possess excellent thermal insulation properties,in combination with keratin derived from waste wool,the research explores the potential of these materials to enhance moisture absorption and heat generation.By incorporating hydrophilic wool keratin into PAN fibers via electrospinning,and leveraging the high specific surface area and porosity inherent in fiber structures,the resulting composite fiber membrane demonstrates superior moisture absorption and heat release capabilities.The results indicate that when the ratio of PAN to keratin was 7:3,the moisture regain reached 21.3%,with a maximum temperature increase of 2.3℃after moisture absorption,thereby exhibiting an outstanding hygroscopic heat-generating effect.This study provides technical support for the efficient utilization of waste wool and the development of functional textile materials.
polyacrylonitrile fiberswaste wool keratinthermal and hygroscopic propertieselectrospinning
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