摘要
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-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。
Firstly a fluorine-silicon polymer（PFAMS） with pendant perfluoroalkyl and reactive epoxy groups was synthesized by Si-H additional reaction of polymethyltrifluoropropylsiloxane（PFHMS）,allylpolyoxyethylene ether（AGE） and perfluorooctyl ethylene（PFOE）.Then silica sols（KH550-SiO2） containing amino groups were prepared via sol-gel methods by aminopropyltriethoxylsilane（KH550） and tetraethyl orthosilicate（TEOS）.Finally a novel fluorine-silicon polymer/nano-silica hybrid（PFAMS-SiO2） was fabricated through graft copolymerization method by the above two chemicals,PFAMS and KH550-SiO2 and super-hydrophobic cotton fabric was also constructed with contact angle of water on its surface 160.91° through immersing-padding-baking processes.Chemical structure,micro-morphology,thermal stability and application performances of the hybrid were investigated by the Fourier transform infrared spectrum（FT-IR）,scanning electron microscopy（SEM）,thermo-gravimetric analyzer（TGA）,and static contact angle analyzer,respectively.Results showed that thermal stability of the hybrid was improved compared to fluorine-silicon polymer,a hydrophobic silicon film and many lotus-leaf-like micro-nano scale tubercles were coated on the surface of cotton fabrics.In addition,with increase of the amount of PFAMS-SiO2,super-hydrophobicity of the cotton fabrics increased,otherwise,softness of the treated cotton fabrics increased first and decreased afterwards.Permeability and whiteness of those fabrics had little change.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2011年第4期675-678,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50373025)
陕西科技大学自然科学基金资助项目(ZX10-07)
关键词
超疏水
棉织物
氟硅聚合物
溶胶-凝胶法
纳米杂化
superhydrophobic
cotton fabric
fluorine-silicon polymer
sol-gel methods
nano-hybrid
