纺织学报 ›› 2016, Vol. 37 ›› Issue (3): 104-109.

• 染整与化学品 • 上一篇    下一篇

应用高温高压镶嵌法的超疏水涤纶织物制备

  

  • 收稿日期:2014-12-10 修回日期:2015-07-20 出版日期:2016-03-15 发布日期:2016-03-16

Preparation of superhydrophobic polyester fabric by high temperature and high pressure inlaying method

  • Received:2014-12-10 Revised:2015-07-20 Online:2016-03-15 Published:2016-03-16

摘要:

为开发制备超疏水涤纶织物的短流程工艺,研究了高温高压下在涤纶表面镶嵌聚二甲基硅氧烷(PDMS)制备方法。结果表明:PDMS对涤纶表面的镶嵌作用能赋予涤纶超疏水性,水接触角能达到163.4o,滚动角最小可达7.0o,沾水等级达到5级,同时改性涤纶织物具有优异的耐洗性能。电镜观察表明,涤纶原有纤维棱角变模糊,表面粗糙度提高;红外光谱分析表明PDMS成功镶嵌到涤纶纤维结构中;X-衍射及DSC分析表明纤维主体结构基本不变;改性后涤纶织物断裂强力有所下降,折皱弹性有小幅度增加,抗弯刚度、白度基本无变化。该方法工艺流程短、成本低、效果好,具有良好的应用前景。

关键词: 聚二甲基硅氧烷, 镶嵌, 涤纶织物, 超疏水整理

Abstract:

In order to invent a short process technology of preparing superhydrophobic polyester fabric, polyester faberinlaid with polydimethylsiloxane (PDMS) was prepared under high pressuer at high temperature. The results show that the effects of PDMS inlay on the surface of polyester can endow the fabric superhydrophobicity, the water contact angle (WCA), sliding angle (SA) and spray rating can reach 163.4o, 7.0o and 5 degree, respectively. Moreover, the modified fabric has excellent laundering durability. Through the scanning electron microscope (SEM) graphs, it shows that the edges and corners of modified polyester fiber are much vaguer than that of the untreated polyester fiber and the surface becomes roughness because of the effect of inlay finishing. The result of infrared spectrum analysis indicates that PDMS has successfully inlaid into the framework of polyester fiber. According to the analysis of X-ray diffraction and differential scanning calorimeter (DSC), the main structure of polyester fiber is almost not damaged in the treating process, the bending stiffness and whiteness remain well, and the elasticity increases slightly, while the breaking strength declines a little. Thus, the method is with short process, low cost and excellent effect, and has a good application prospect.

Key words: polydimethylsiloxane, inlay, polyester fabric, superhydrophobic finishing

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