摘要
利用亲水和非亲水性聚氨酯(PU)树脂,经一定的工艺加工成聚氨酯转移涂层织物。测量与分析了织物孔径结构、接触角、透湿量以及耐静水压等参数。结果表明,采用非亲水性PU树脂的涂层织物,仅有微孔透湿,透湿率低,但防水性好;而亲水性PU涂层织物,既有以水蒸气和液态水形式通过“溶解—扩散—吸附”传递;又有通过微孔质扩散,故该类亲水性PU涂层织物具有很好的透湿性能,但防水性不足,达不到PU涂层织物透湿性与防水性和谐统一的要求。
Coated fabrics were produced by transfer coating processes using water-borne and non-water-borne polyurethane resins. The size of formation porosity, contact angles,waterproof and permeability of fabrics coated by polyurethane were tested and studied.It showed that water-nonborne polyurethane coated fabrics have better waterproof but less permeability only by porosity free diffusing, while water-borne polyurethane coated fabrics have better permeability but low waterproof because of both porosity free diffusing and molecular transportation diffusing.They can be satisfied with waterproof and permeability in harmony.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2005年第3期82-84,共3页
Journal of Textile Research
关键词
聚氨酯
转移涂层
织物与结构
透湿性
防水性
polyurethane
transfer coating
fabric and microstructure
permeability
waterproof
