Haghbin Amin, Liaghat Gholamhossein, Hadavinia Homayoun, Arabi Amir Masoud, Pol Mohammad Hossein
Faculty of Mechanical Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, 14115-111 Tehran, Iran.
Faculty of Science, Engineering and Computing, School of Engineering, Kingston University, London SW15 3DW, UK.
Materials (Basel). 2017 Sep 22;10(10):1120. doi: 10.3390/ma10101120.
In this work, an electrophoretic deposition (EPD) technique has been used for deposition of carbon nanotubes (CNTs) on the surface of glass fiber textures (GTs) to increase the volume conductivity and the interlaminar shear strength (ILSS) of CNT/glass fiber-reinforced polymers (GFRPs) composites. Comprehensive experimental studies have been conducted to establish the influence of electric field strength, CNT concentration in EPD suspension, surface quality of GTs, and process duration on the quality of deposited CNT layers. CNT deposition increased remarkably when the surface of glass fibers was treated with coupling agents. Deposition of CNTs was optimized by measuring CNT's deposition mass and process current density diagrams. The effect of optimum field strength on CNT deposition mass is around 8.5 times, and the effect of optimum suspension concentration on deposition rate is around 5.5 times. In the optimum experimental setting, the current density values of EPD were bounded between 0.5 and 1 mA/cm². Based on the cumulative deposition diagram, it was found that the first three minutes of EPD is the effective deposition time. Applying optimized EPD in composite fabrication of treated GTs caused a drastic improvement on the order of 10⁸ times in the volume conductivity of the nanocomposite laminate in comparison with simple GTs specimens. Optimized CNT deposition also enhanced the ILSS of hierarchical nanocomposites by 42%.
在本工作中，采用电泳沉积（EPD）技术将碳纳米管（CNT）沉积在玻璃纤维织物（GT）表面，以提高CNT/玻璃纤维增强聚合物（GFRP）复合材料的体积电导率和层间剪切强度（ILSS）。已开展全面的实验研究，以确定电场强度、EPD悬浮液中CNT浓度、GT的表面质量和工艺持续时间对沉积CNT层质量的影响。用偶联剂处理玻璃纤维表面时，CNT沉积显著增加。通过测量CNT的沉积质量和工艺电流密度图来优化CNT的沉积。最佳场强对CNT沉积质量的影响约为8.5倍，最佳悬浮液浓度对沉积速率的影响约为5.5倍。在最佳实验设置下，EPD的电流密度值介于0.5和1 mA/cm²之间。根据累积沉积图发现，EPD的前三分钟是有效沉积时间。与简单的GT试样相比，在处理后的GTs的复合材料制造中应用优化的EPD，使纳米复合层压板的体积电导率大幅提高了10⁸倍。优化的CNT沉积还使分层纳米复合材料的ILSS提高了42%。
