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以氨值为0.5587mmol/g、数均分子量((M)(n))为2.2×10(4)的聚醚氨基-b-聚硅氧烷(PEA-b-PS)作成膜物质,以氧化单晶硅及棉纤维织物作载膜基质,用原子力显微镜(AFM)等研究了PEA-b-PS的膜形貌和应用性能.结果表明,在氧化单晶硅和棉纤维基质表面,PEA-b-PS均能成膜,宏观上看似平滑的PEA-b-PS膜微观形貌实则呈非均一结构,在PEA-b-PS表面有大量由亲水性聚醚氨基链节所产生的微凸存在.当PEA-b-PS包覆在纤维表面,它不仅能导致处理后棉纤维织物的弯曲刚度明显降低,而且能使织物的静态吸水时间缩短为3.4s.

参考文献

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