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Fluorination of Epoxy Surfaces by a Physical Method

机译:通过物理方法氟化环氧树脂表面

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摘要

To enhance the surface hydrophobicity of epoxy polymers, a simple phsical method for the simultaneous surface fluorination during curing of epoxy resins was proposed and evaluated. Curing of epoxy resins against a polytetrafluoroethylene (PTFE) mold gave rise to fluorinated epoxy polymer surfaces due to the anchorage of PTFE molecules on the epoxy polymer surface. The modified epoxy surfaces were characterized using contact-angle measureents and X-ray photoelectron spectroscopy (XPS). The fluorinated epoxy resin surfaces are highly hydrophobic, exhibiting contact angles of similar magnitude to that of the pristine PTFE film surface. The PTFE mold can be used repeatedly to give fluorinated epoxy surfaces with large contact angles. Aging and solvent extraction tests indicated that the fluorinated epoxy surfaces were very stable.
机译:为了增强环氧聚合物的表面疏水性,提出了一种简单的物理方法,用于环氧树脂固化过程中同时进行表面氟化。环氧树脂在聚四氟乙烯(PTFE)模具上的固化由于氟化物分子在环氧树脂聚合物表面上的锚固而产生了氟化的环氧树脂聚合物表面。使用接触角测量仪和X射线光电子能谱(XPS)表征改性的环氧表面。氟化环氧树脂表面是高度疏水的,具有与原始PTFE薄膜表面相似的接触角。 PTFE模具可以重复使用,以产生具有大接触角的氟化环氧表面。老化和溶剂萃取测试表明,氟化环氧表面非常稳定。

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