文章摘要
聚对苯撑苯并双噁唑纤维的表面改性及疏水性涂层制备
Surface Modification of Poly-p-phenylenebenzobisthiazole Fibers and Preparation of Hydrophobic Coatings
  
DOI:10.16865/j.cnki.1000-7555.2018.05.027
中文关键词: 聚对苯撑苯并双噁唑纤维  表面改性  疏水性  偶联剂
英文关键词: poly-p-phenylenebenzobisthiazole fiber  surface modification  hydrophobicity  coupling agent
基金项目:
作者单位
李芝华1,2, 李 慧1,2, 刘兰兰3, 刘夏清3, 邹德华3, 牛 捷3 1. 中南大学 材料科学与工程学院湖南 长沙 4100832. 有色金属材料科学与工程教育部重点实验室湖南 长沙 410083
3.国网湖南省电力公司带电作业中心
湖南 长沙 410000 
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中文摘要:
      采用偶联剂KH-560对聚对苯撑苯并双噁唑(PBO)纤维进行表面活化,并用含有十七氟癸基三甲氧基硅烷(HFTES)的涂层对偶联剂改性后的PBO纤维表面进行疏水性处理。利用X射线光电子能谱、扫描电镜等对PBO纤维表面结构和性能进行表征,考察了偶联剂KH-560质量分数对PBO纤维表面改性效果的影响,同时分析了HFTES质量分数对PBO纤维疏水性的影响。研究结果表明,采用KH-560改性PBO表面时,PBO纤维表面形成了薄层偶联剂涂层,纤维表面粗糙度增加,PBO纤维表面引入的环氧基活性基团增强了纤维表面活性。随着HFTES浓度的提升,PBO纤维吸水率下降。经HFTES处理后PBO纤维的吸水率大幅度下降,经含有HFTES的有机硅改性环氧树脂涂层处理后的PBO纤维表面水接触角可达132°。
英文摘要:
      Surface of poly-p-phenylenebenzobisthiazole (PBO) fibers were activated by the coupling agent KH-560, and the surface of PBO fibers modified by coupling agent was treated with a coating containing heptafluorodecyltrimethoxysilane (HFTES). The surface structure and properties of PBO fibers were characterized by X-ray photoelectron spectroscopy and scanning electron microscopy. The effect of KH-560 on the surface modification of PBO fibers was investigated. The effects of HFTES mass fraction on hydrophobicity was studied. The results show that when the surface of PBO is treated with coupling agent KH-560, a thin layer of coupling agent coating is formed on the surface of PBO and the surface roughness of PBO fiber increases, and the epoxy group introduced on PBO fiber surface enhances surface activity of fibers. With the increase of HFTES concentration, the water absorption of PBO fiber decreases. The water absorption rate of PBO fibers treated with HFTES decreases significantly, and the water contact angle of PBO fibers treated with HFTES-containing silicone modified epoxy resin coating is 132°.
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