Introduction to fluorine-containing antifouling finishing agents



带有亲水链段的含氟防污整理剂,在其分子结构中,即含有全氟脂肪族的憎水性链段,同时液存在羟基、羧基、聚醚等亲水性链段。这两种不同性质的链段,前者保证整理织物在空气中具有防油、防污的特性,后者赋予织物一定亲水性,改善其在水中洗涤时的易去污性。 This kind of easy-to-decontaminate finishing agent with hydr…

带有亲水链段的含氟防污整理剂,在其分子结构中,即含有全氟脂肪族的憎水性链段,同时液存在羟基、羧基、聚醚等亲水性链段。这两种不同性质的链段,前者保证整理织物在空气中具有防油、防污的特性,后者赋予织物一定亲水性,改善其在水中洗涤时的易去污性。
This kind of easy-to-decontaminate finishing agent with hydrophilic segments is different from ordinary fluorine-containing oil-proof and anti-fouling finishing agents. When the surface of the finished fabric is in the air medium, the fluorine-containing hydrophobic segments are directionally distributed on the surface. The water-based segments are distributed under the surface and exhibit anti- , anti-fouling properties, but when the finished fabric is transferred from the air medium to the water medium for washing, it can be reoriented so that the hydrophilic segments are distributed on the surface and the hydrophobic segments are distributed under the surface, thereby improving the wetting of the fabric. properties, conducive to the removal of dirt �<br /
若再将整理织物重新干燥时(即在空气介质中),则憎水性链段又可重新分布在表面,恢复其防油、防污的特性。但是这种由于反复定向的结果,容易导致薄膜的松动,使易去污整理的效果下降。
有些含氟防污化合物使一个含有全氟化碳侧链的碳氢聚合中轴高分子化合物,用此类化合物整理的织物,在空气中具有低能表面,故易疏水性污垢再污染� �所以用它整理的织物,仅能在干燥时起减少沾附污垢的作用,而在洗涤时有被再污染的缺点� �好与季铵类合用,以得到更好的防污、防水整理效果�

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