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首页> 外文期刊>Journal of Applied Polymer Science >Effects of Soft Segments on the Surface Properties of Polydimethylsiloxane Waterborne Polyurethane Prepolymer Blends and Treated Nylon Fabrics
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Effects of Soft Segments on the Surface Properties of Polydimethylsiloxane Waterborne Polyurethane Prepolymer Blends and Treated Nylon Fabrics

机译：软链段对聚二甲基硅氧烷水性聚氨酯预聚物共混物和处理过的尼龙织物表面性能的影响

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摘要

This study of waterborne polyurethane prepolymer blends was done to investigate the effects of different types of soft segments on the dispersion properties and other properties of treated nylon fabrics. The particle size of the dispersion increased, the surface tension of the dispersion decreased, and the contact angle of the nylon fabric with the dispersion decreased when the blending amount of the polydimethylsiloxane polyurethane prepolymer increased. The add-on of ether-type polyurethane increased rapidly when the ether-type polyurethane was blended with a small amount of the polydimethylsiloxane polyurethane prepolymer, whereas the add-on of the ether-type polyurethane reached a maximum at a blending content of 10%. The add-on of the ester-type polyurethane prepolymer constantly decreased with increasing blending amount of the polydimethylsiloxane polyurethane prepolymer. The vertical wicking height of the treated nylon fabrics decreased slightly when the treating agent contained a small amount of the polydimethylsiloxane polyurethane prepolymer. For the treated nylon fabrics with blended prepolymers, the drying time was faster than for the untreated fabric, and the moisture ratio reached about 10% in 15 min.
机译：进行了水性聚氨酯预聚物共混物的研究，以研究不同类型的软链段对经处理的尼龙织物的分散性能和其他性能的影响。当聚二甲基硅氧烷聚氨酯预聚物的共混量增加时，分散体的粒度增加，分散体的表面张力降低，并且尼龙织物与分散体的接触角减小。当将醚型聚氨酯与少量的聚二甲基硅氧烷聚氨酯预聚物共混时，醚型聚氨酯的添加量迅速增加，而当共混含量为10％时，醚型聚氨酯的添加量达到最大值。 。随着聚二甲基硅氧烷聚氨酯预聚物的共混量的增加，酯型聚氨酯预聚物的添加量不断减少。当处理剂含有少量的聚二甲基硅氧烷聚氨酯预聚物时，处理过的尼龙织物的垂直芯吸高度略有下降。对于具有共混预聚物的处理过的尼龙织物，干燥时间比未处理的织物快，并且水分比率在15分钟内达到约10％。

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