Preparation of Hydrophilic and Anti-felting Wool Fabric
There is a scale layer on the surface of wool fiber,which leads to poor hydrophilicity of the wool fabrics.The scale layer also makes wool prone to static electricity,pilling,felt shrinkage and other problems,which has a great impact on the wearing performance of wool fabric.In this paper,wool was grafted with polyethylene glycol disuccinate(PEGDSA).The wool fabric was first treated with LKZ-610 and hydrogen peroxide to expose more amino groups,and then the small molecule polymer PEGDSA was grafted onto the surface of the wool fabric by the EDC-NHS method.The results show that PEGDSA is successfully grafted onto the wool surface.After being grafted with 10%PEGDSA,the wool fabrics have good hydrophilicity,and the wicking height of wool fabrics can reach more than 100 mm,and the felting shrinkage of wool fabrics decreases rapidly to less than 10%.The anti-pilling properties of wool fabrics are also greatly improved to class 5 after 2 000 times.Meanwhile,the strength retention rate of fabrics can reach 80%.
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