Effect of fluorine functional groups on surface and mechanical interfacial properties of epoxy resins |
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Authors: | Fan-Long Jin Soo-Jin Park |
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Institution: | a Department of Chemical Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, PR China b Department of Textile Engineering, Chonbuk National University, Chonju 560-756, South Korea c Department of Chemistry, Inha University, Nam-gu, Incheon 402-751, South Korea |
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Abstract: | To improve the surface and mechanical interfacial properties of epoxy resins, fluorine-containing epoxy resin (FEP) was prepared and blended with a commercially available tetrafunctional epoxy resin (TGDDM). As a result, when the fluorine content increased, the total surface energy of TGDDM/FEP blends was gradually decreased, while the water repellency of the blends was increased. The glass transition temperature and thermal stability factors of the blends showed maximum values at 20-40 wt% FEP compared with neat TGDDM epoxy resins. And the mechanical interfacial properties of the blend specimens were significantly increased with increasing the FEP content, which could be attributed to the intermacromolecular interactions in the cured TGDDM/FEP blends. These results indicate that the water repellency and toughness improvements have been achieved without significantly deterioration of the thermal properties in the TGDDM/FEP blends. |
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Keywords: | Epoxy resin Fluorine Glass transition temperature Thermal stability Fracture toughness |
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