中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (12): 48-52 .DOI: 10.19491/j.issn.1001-9278.2008.12.011

• 材料与性能 • 上一篇    下一篇

火焰喷涂乙烯-四氟乙烯共聚物/纳米SiO2涂层的热行为

李亚东;强克刚;刘 志;张治军   

  1. 1.郑州轻工业学院 河南省表界面科学重点实验室,河南 郑州 450002;2.河南大学特种功能材料省重点实验室,河南 开封 475001
  • 收稿日期:2008-08-04 修回日期:1900-01-01 出版日期:2008-12-26 发布日期:2008-12-26

Thermal Behavior of Flame Sprayed Ethylene Tetrafluoroethylene/Nano-SiO2 Coating

LI Ya-dong;QIANG Ke-gang;LIU Zhi;ZHANG Zhi-jun   

  1. 1.Zhengzhou Institute of Light Industry, Henan Provincial Key Laboratory of Surface &Interface Science, Zhengzhou 450002, China;2.Provincial Key Laboratory of Special Functional Materials, Henan University, Kaifeng 475001, China
  • Received:2008-08-04 Revised:1900-01-01 Online:2008-12-26 Published:2008-12-26
  • Contact: LI Ya-dong

摘要： 采用火焰喷涂法制备了乙烯-四氟乙烯共聚物(ETFE)/纳米SiO2复合涂层，采用红外光谱仪、差示扫描量热仪（DSC）对复合涂层的结构、非等温结晶过程、熔融行为进行分析。红外光谱分析表明，ETFE及ETFE/纳米SiO2粉末在火焰喷涂过程中没有发生氧化或降解反应，表明火焰喷涂法适宜制备ETFE及ETFE/纳米SiO2复合涂层；DSC分析结果表明，纳米SiO2粒子的加入提高了复合涂层的结晶速率，结晶温度提高约2 oC，而且使复合涂层的熔融峰温度高于纯ETFE涂层。结果表明，纳米SiO2粒子具有成核剂的作用，诱导ETFE大分子结晶，使其结晶能力及结晶的完善程度提高。

关键词: 火焰喷涂, 乙烯-四氟乙烯共聚物, 纳米二氧化硅 非等温结晶, 熔融行为

Abstract: Ethylene-co-tetrafluoroethylene(ETFE)/nano-SiO2 composite coatings were prepared via flame spray. The degradation behavior of the composite coating was characterized using Fourier transform infrared spectroscopy, which confirmed that no oxidation nor degradation occurred during the flame spray. The non-isothermal crystallization and melting behavior were investigated using differential scanning calorimeter. It showed that the SiO2 particles promoted the heterogeneous nucleation and the crystallization temperature was increased by 2 oC, the melt point was also increased.

Key words: flame spray, ethylene tetrafluoroethylene, nano-silicon dioxide, non-isothermal crystallization, melting behavior

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