Abstract: Methoxy polyethylene glycol acrylate (MPGA) was electrochemical polymerized on carbon fiber (CF) by using cyclic voltammetry (CV) to enhance the surface properties of CF. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetry analysis (TGA) investigations confirmed that MPGA electropolymerized on CF (MPGA-CF) was obtained. The low frequency capacitance of MPGA-CF (C_LF=5.85 mF·cm^-2) was higher than CF(C_LF=4.75 mF·cm^-2) based on the result of electrochemical impedance spectroscopy(EIS) and the data obtained fitted with an R(Q(R(Q(R(CR))))) equivalent circuit model. Contact angle experiment showed that the contact angle between water and MPGA-CF is significantly lower than that between water and CF. Mechanical experimental results indicated that the interlaminar shear strength (ILSS) of MPGA-CF/epoxy resin composites (32.24 MPa) has improved by 134.81 % compare with the CF/epoxy resin composites (13.73 MPa), which significantly enhanced interfacial properties of epoxy resin composites.

中文翻译：

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甲氧基聚乙二醇丙烯酸酯在碳纤维上的电化学聚合以改善界面性能

摘要：利用循环伏安法（CV）在碳纤维（CF）上电化学聚合了甲氧基聚乙二醇丙烯酸酯（MPGA），以提高CF的表面性能。傅里叶变换红外光谱（FTIR），扫描电子显微镜（SEM）和热重分析（TGA）研究证实，获得了在CF上电聚合的MPGA（MPGA-CF）。MPGA-CF（C _LF = 5.85 mF·cm ^-2）的低频电容高于CF（C _LF = 4.75 mF·cm ^-2））是基于电化学阻抗谱（EIS）的结果，并且所获得的数据符合R（Q（R（Q（R（CR（））））））等效电路模型。接触角实验表明，水与MPGA-CF的接触角明显小于水与CF的接触角。力学实验结果表明，MPGA-CF /环氧树脂复合材料（32.24 MPa）的层间剪切强度（ILSS）比CF /环氧树脂复合材料（13.73 MPa）提高了134.81％，极大地增强了环氧树脂的界面性能复合材料。