基于溶胶-凝胶技术的毛/涤织物疏水改性研究

Study on superhydrophobic modification to wool / polyester fabric with sol-gel process

超疏水织物因其广阔的应用前景,深受人们的关注。文章以毛/涤织物为基材,探索不同粒径尺度溶胶整理毛/涤织物构造有效微-纳米复合结构的改性方法;并利用扫描电镜、红外光谱、热分析仪和视频接触角测量仪对改性织物的结构和性能进行表征和分析。结果表明:通过控制溶胶-凝胶工艺,可成功制备几十纳米至几百纳米不同粒径的纳米颗粒,将不同尺度纳米硅球原位结合到纤维表面,能够在纤维表面构造有效的微-纳米多级复合结构;再使用含疏水性长链的硅烷对粗糙表面进行改性,可开发具有超疏水特性的毛/涤织物。

The extraordinary application of superhydrophobic fabric has attracted considerable attention in recent years. In this paper , we proposed a method to design an effective micro-and nanostruetures on the wool/polyester fabric by using different particle size sol to finish the fabric. The coated samples were characterized by scanning electron microscopy （SEM） , fourier transform infrared spectrometer（FTIR） , thermogravimetric analysis（TGA）, the water contact angle （WCA） , respectively. The results indicated that different particle size（from 10 nm to 900 nm）sol using the low-temperature sol- gel technique were made and finished on the fabric in situ binding, and we designed an effective micro- and nanostructures; then the fabric was fabricated by depositing long alkyl chain silane, and we succeeded in fabrication of superhydrophobic wool/polyester fabric.