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首页> 外文期刊>Applied Surface Science >Film morphology, orientation and performance of dodecyl/carboxyl functional polysiloxane on cotton substrates
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Film morphology, orientation and performance of dodecyl/carboxyl functional polysiloxane on cotton substrates

机译：棉基材上十二烷基/羧基官能聚硅氧烷的薄膜形态，取向和性能

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摘要

A novel polysiloxane (RCAS) bearing dodecyl and carboxyl side groups was synthesized by reaction of a dodecyl/amino functionalized polysiloxane with maleic anhydride. Film morphology, molecular orientation and performance of the synthesized polysiloxane on cotton substrates were investigated by field emission scanning electron microscope (FESEM), atomic force microscope (AFM), X-ray photoelectron microscope (XPS) and so on. Affected by the dodecyl and polar carboxyl side groups, RCAS formed a semi hydrophilic, macroscopic smooth but actually uneven siloxane film with many pillar-likes or small humps on the treated substrate surfaces. On the natural cotton surface, RCAS may take such an orientation to form its film that the Si-CH_3, Si-C_(12)H_(25) groups projected outward into air, while the carboxyl groups pointed inward to the substrate, interacting with the hydroxyls of the cotton substrates in ester and hydrogen bonds or twisted away from the negatively charged cotton fiber surface. As a result of such a film-formation, RCAS provided the treated fabric with not only a good wettability of about 22.96 s and a whiteness of 88.44°, but also an improved softness as well as thickening handle.
机译：通过十二烷基/氨基官能化的聚硅氧烷与马来酸酐的反应合成了带有十二烷基和羧基侧基的新型聚硅氧烷（RCAS）。通过场发射扫描电子显微镜（FESEM），原子力显微镜（AFM），X射线光电子显微镜（XPS）等研究了棉基材上合成聚硅氧烷的薄膜形态，分子取向和性能。受十二烷基和极性羧基侧基的影响，RCAS形成了半亲水，宏观光滑但实际上不均匀的硅氧烷膜，在处理过的基材表面上有许多柱状或小驼峰。在天然棉表面上，RCAS可以采取这样的取向来形成其薄膜，即Si-CH_3，Si-C_（12）H_（25）基团向外投射到空气中，而羧基向内指向底物并与之相互作用。棉基质中的羟基在酯和氢键之间或从带负电荷的棉纤维表面扭曲开来。由于这样的膜形成，RCAS不仅为处理过的织物提供约22.96s的良好润湿性和88.44°的白度，而且还提供改善的柔软度和增稠手感。

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  • 来源
    《Applied Surface Science》 |2011年第10期|p.4569-4574|共6页
  • 作者

    Qiufeng An; Kefeng Wang; Yun Jia;

  • 作者单位

    Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an 710021, China;

    Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an 710021, China;

    Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an 710021, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Dodecyl/carboxyl polysiloxane; Film morphology; Cotton fabric; Orientation;

    机译：十二烷基/羧基聚硅氧烷;膜形态棉织物;取向;

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