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通过本体聚合、溶胶-凝胶和接枝共聚等方法,以三氟丙基甲基-co-一甲基氢硅氧烷(PFHMS)、烯丙基缩水甘油醚(AGE)和全氟辛基乙烯(PFOE)间的硅氢化加成反应制得侧链含有全氟烷基、反应性环氧基的氟硅聚合物(PFAMS),并利用其与氨丙基三乙氧基硅烷(KH550)溶胶-凝胶改性纳米SiO2间的接枝共聚反应制备了一种氟硅聚合物/纳米SiO2杂化材料(PFAMS-SiO2),经一次浸渍、烘焙的整理工艺,简便地制得了对水的静态接触角达160.91°的超疏水棉织物.用红外光谱(FT-IR)、扫描电子显微镜(SEM)、热重分析仪(TGA)、静态接触角测量仪等仪器研究了杂化材料的结构、微观形态、热稳定性和应用性能.TGA分析表明,杂化材料的热稳定性明显提高;SEM观察证实棉纤维表面存在一层疏水膜和大量的仿荷叶纳米微凸体.应用研究发现,随PFAMS-SiO2用量的增加,棉织物的超疏水性明显提高,柔软度先增后降,白度和透气性变化不大.

参考文献

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