物理化学学报 >> 2009, Vol. 25 >> Issue (06): 1070-1074.doi: 10.3866/PKU.WHXB20090603

研究论文 上一篇    下一篇

PCL-b-PDMS-b-PCL复合环氧树脂的表面结构

李慧琴, 金承钰, 范文春, 梁齐   

  1. 上海交通大学分析测试中心, 上海 200240|上海交通大学化学化工学院, 上海 200240
  • 收稿日期:2009-01-05 修回日期:2009-03-09 发布日期:2009-06-05
  • 通讯作者: 梁齐 E-mail:qiliang@sjtu.edu.cn

Surface Structure of Epoxy Resin Blended with PCL-b-PDMS-b-PCL

LI Hui-Qin, JIN Cheng-Yu, FAN Wen-Chun, LIANG Qi   

  1. Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, P. R. China|School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
  • Received:2009-01-05 Revised:2009-03-09 Published:2009-06-05
  • Contact: LIANG Qi E-mail:qiliang@sjtu.edu.cn

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摘要：

利用原子力显微镜(AFM)中的敲击模式原子力显微镜(TM-AFM)和摩擦力显微镜(FFM)对不同含量聚己内酯-b-聚二甲基硅氧烷-b-聚己内酯三嵌段(PCL-b-PDMS-b-PCL)共聚物复合环氧树脂的表面富集结构进行了分析研究. TM-AFM测试在不同作用力下得到了PCL-b-PDMS-b-PC 含量不同环氧树脂表面及其亚表面的分相结构; 同时利用FFM对其表面进行摩擦和磨损试验. 结果表明, PCL-b-PDMS-b-PCL含量不同时摩擦性能表现出较大的变化, 当其质量分数达到30%时, 表面性能达到了稳定. 接触角试验也验证了以上的结果.

关键词: 敲击模式原子力显微镜, 聚己内酯-b-聚二甲基硅氧烷-b-聚己内酯, 摩擦力显微镜, 环氧树脂, 表面富集

Abstract:

The surface enrichment and phase separation structures of epoxy resin and poly(ε-caprolactone)-block-polydimethylsiloxane-block-poly(ε-caprolactone) triblock copolymer (PCL-b-PDMS-b-PCL) blends were studied using tapping mode atomic force microscopy (TM-AFM) and frictional force microscopy (FFM). Friction and wear properties show that the surface is enriched with the PDMS component and it reaches a stable state at a PCL-b-PDMS-b-PCL mass fraction of about 30%. Contact angle measurements on the surface also support these results.

Key words: TM-AFM, PCL-b-PDMS-b-PCL, FFM, Epoxy resin, Surface enrichment