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

对羊绒-水相互作用的基本了解是羊绒加工制造和基于羊绒的热湿管理纺织品的开发的关键部分。基于不冻阈值和吸湿性，采用低温差示扫描量热法（DSC）和动态水蒸气吸附法（DVS）研究了羊绒中不同类型的水分以及水与纤维之间的相互作用，研究了羊绒中的孔径分布还根据结合水探针的 Gibbs-Thomson 效应确定。实验检测了游离水和非凝固水的含量，这两种水的临界回潮率为37.2%。羊绒的孔径分布表明，大多数孔径小于60 nm。通过 Brunner-Emmet-Teller (BET) 理论评估羊绒的单层水分含量高达 17.26%（对应于 50°C）的不可冻结水。由不同温度下部分重叠的等温线计算净等距解吸热，突破了克劳修斯-克拉佩龙方程的限制，通过等量热曲线识别了单层水和多层水的边界。