• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Dual-compartment nanofibres: separation of two highly reactive components in close vicinity
【24h】

Dual-compartment nanofibres: separation of two highly reactive components in close vicinity

机译：双室纳米纤维：在附近分离两种高反应性组分

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

Dual-compartment nanofibres separating two highly reactive components in close vicinity are investigated. The study is intended as a non-classical approach for the control of reaction latency in colloidal systems. An epoxide resin and a hydrophobic polyamine which react readily at low temperatures are chosen as model compounds. Colloid electrospinning with PVA as the confining matrix is used for the immobilization of both in separate compartments. Uniform fibres are produced with a matrix/colloid weight ratio of 3/1. The internal fibre morphology was investigated via dual-colour stimulated emission depletion (STED) microscopy and TEM. The results show a statistical distribution of epoxy-and amine-containing compartments and indicate average particle-particle distances of <100 nm, which is supported by computations. The fibres are highly storage stable under ambient conditions and yet allow for efficient crosslinking and self-healing. The curing reaction can be initiated via thermal or mechanical stimuli, as demonstrated by electron microscopy and electrochemical testing of fibre containing coatings. The reactivity and latency for reaction is furthermore proven by calorimetric and chromatographic methods.
机译：研究了将两个高反应性组分紧密相邻的双室纳米纤维。该研究旨在作为一种非经典方法来控制胶体系统中的反应潜伏期。选择在低温下容易反应的环氧树脂和疏水性多胺作为模型化合物。以PVA为封闭基质的胶体电纺用于将两者固定在单独的隔室中。生产出的基质/胶体重量比为3/1的均匀纤维。通过双色激发发射耗尽（STED）显微镜和TEM研究了内部纤维形态。结果显示了含环氧和胺的隔室的统计分布，并表明了<100 nm的平均颗粒间距离，这得到了计算的支持。纤维在环境条件下具有高度的存储稳定性，但可以实现有效的交联和自我修复。可以通过热或机械刺激来引发固化反应，如电子显微镜和含纤维涂层的电化学测试所证明的。反应的反应性和反应潜伏期还通过比色法和色谱法证明。

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