Analysis of states of water in cashmere fibers and utilizing water as molecular probe for pore size distribution

• DOI: 10.1016/j.polymertesting.2021.107285
• Publication Date: 2021-07-04T13:36:22Z
• Authors: Liuxiang Zhan; Yuling Li; Feng Ji; Ni Wang
• Keywords: Bound water

Fundamental understanding of cashmere–water interaction is a critical part both for the manufacturing cashmere processing and development cashmere-based heat-moisture management textiles. Based on unfreezable threshold hygroscopic properties, different types water in between fibers were investigated by using low-temperature differential scanning calorimetry (DSC) dynamic vapor sorption (DVS), pore size distribution also determined according to Gibbs−Thomson effect bound probe. The amount free non-freezable was experimentally detected, moisture regain these two 37.2%. showed that most pores less than 60 nm diameter. monolayer content accounted up 17.26% (corresponding 50 °C) water, which evaluated though Brunner–Emmet–Teller (BET) theory. net isometric heat desorption calculated from partially overlapping isotherms at temperatures, break through limitation Clausius–Clapeyron equation, boundary multilayer identified curve isosteric heat.