Effect of Process Parameters on Hand Values of PU Laminated Waterproof Breathable Textile

Abstract

Polymeric porous membranes are important in the protective textile industry because of their high breathability balanced with water resistivity. Developing the membranes which display balanced and optimized properties has proven to be a great challenge. Final membrane performance is dependent on fundamental parameters including membrane thickness, aging temperature, and adhesive aging temperature and time. The aim of this study is to investigate the influence of these parameters on porous membrane morphology and performance. Using a scanning electron microscope, we analyzed membrane thickness impacts on morphology and pore size. We also investigated physical performance such as water pressure, water vapor permeability, and resistance to evaporating heat transfer (RET). We used the Kawabata evaluation system to evaluate the hand values based on quality according to customer choice. However, good mechanical, physical, and aesthetic performance of laminated textile suggest it as a promising substitute for numerous potential applications, especially as outdoor functional protective clothing.