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Vol.13, No.2, 391 ~ 403, 2010
Title
Comparison of Mechanical Properties of Electrospun Nanofiber Web Layered Systems and Conventional Breathable Waterproof Fabrics
 
Abstract
In this study, breathable waterproof materials were prepared by electrospinning. Five kinds of electrospun nanofiber web layered systems with different levels of nanofiber web density, as well as different substrates and layer structures were fabricated, and their mechanical properties (tensile, bending, shear, compression, surface, and thickness & weight) were measured by the KES-FB system and compared with those of conventional breathable waterproof fabrics (densely woven fabric, PTFE laminated fabric and PU coated fabric). The KES-FB measurements demonstrate that the lab-scale nanofiber web layered systems are more flexible and fuller than commercial nanofiber web layered systems, which have a more compact structure than the lab-scale nanofiber web layered systems. Densely woven fabrics and lab-scale nanofiber web layered systems showed lower values of tensile linearity (LT), bending stiffness (B), and shear stiffness (G) than those of PU coated and PTFE laminated fabric. These results indicate that they are more flexible and have less resistance to the shearing movement, corresponding to a more pliable material having a better drape, than PU coated fabrics and PTFE laminated fabrics.
Key Words
electrospinning, nanofiber web, breathable waterproof material, mechanical property, KES-FB system, 전기방사, 나노섬유 웹, 투습방수 소재, 역학적 특성, KES-FB
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