• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Direct Observation of Bound Water on Cotton Surfaces by Atomic Force Microscopy and Atomic Force Microscopy-Infrared Spectroscopy
【24h】

Direct Observation of Bound Water on Cotton Surfaces by Atomic Force Microscopy and Atomic Force Microscopy-Infrared Spectroscopy

机译：用原子力显微镜和原子力显微镜 - 红外光谱直接观察棉花表面的结合水

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A wet cotton rag becomes stiff after natural drying. We propose a model for this hardening phenomenon, which explains that the stiffness of cotton is caused by a cross-linked network between single fibers, mediated by capillary adhesion of bound water on the surface of cellulose. Here, with the aid of atomic force microscopy and atomic force microscopy-infrared spectroscopy, we reveal the existence of the bound water on the surface of a cotton single fiber under naturally dried conditions. We also find that the hydrogen bonding state of the bound water is distinct from that of the bulk water. Two stretching modes of OH groups are clearly decoupled from each other, which arise from the effects of the air-water (hydrophobic) and water-cellulose (hydrophilic) interfaces. This suggests a possible link between the microscopic nature of the bound water and the macroscopic mechanical behavior of cotton fabrics.
机译：在天然干燥后，湿棉布变硬。 我们提出了这种硬化现象的模型，这解释说，棉的刚度是由单纤维之间的交联网络引起的，由纤维素表面上结合的水的毛细管粘附介导。 这里，借助原子力显微镜和原子力显微镜 - 红外光谱，我们在天然干燥的条件下揭示棉单纤维表面的结合水的存在。 我们还发现，结合水的氢键状态不同于散装水的氢键状态。 两组的两个拉伸模式彼此明显地分离，从而从空气 - 水（疏水性）和水 - 纤维素（亲水）界面的影响产生。 这表明结束水的显微性质与棉织物的宏观机械行为之间可能的联系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号