Structure and performance of sea-island method ultrafine fiber non-woven fabric

Superfine fiber non-woven fabric has a wide range of application prospects in filtration, insulation, and absorption media. Its fiber diameter and pore structure play a decisive role in the performance of the final product. In this thesis, the PA6/PE sea-island fiber nonwoven fabric is prepared by the spunlace method, and the PE component in the spunlace nonwoven fabric is stripped with solvent xylene to prepare the PA6 superfine fiber spunlace nonwoven fabric, and the spunlace is comparatively studied The morphology, pore size, air permeability, mechanical properties and water absorption properties of the non-woven fabric before and after peeling. The research results show that the fiber diameter of the spunlace non-woven fabric is significantly reduced from 28 μm to 792 nm after the xylene treatment, the pore diameter is also reduced by 85%, the water absorption capacity is increased, the breaking strength is increased, and the vertical and horizontal strength is balanced and uniform.度 Increase.