Surface Conductivity and Water Absorption of Fluorinated Epoxy Resin
In order to inhibit the surface charge accumulation of epoxy resin,we used F2/N2 mixture to treat the surface of epoxy resin samples for 10,30,60 minutes respectively.Then the epoxy resin sampies were characterized by ATR-IR,and their electrical properties,surface potential,water absorption,and contact angel were tested.The results show that the fluorination makes the chemical composition and structure of the surface of epoxy resin samples change,the surface conductivity of the fluorinated epoxy resin samples increases by 3～4 magnitude.With the prolonging of fluorination time,the surface conductivity first increases then decreases,and the surface potential reduce to zero under 419 s,986 s,and 1 296 s respectively at room temperature.The water absorption of the fluorinated samples decreases significantly,and the fluorinated surface is found to be hydrolyzed.
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维普
