In this study, thermal chemical vapor deposition (CVD) method was utilized to fabricate carbon nanotubes (CNTs) using an Fe/Al catalyst. Plasma enhanced CVD (PECVD) was applied to coat CNTs surfaces with a hydrophobic poly(hexafluorobutyl acrylate) (PHFBA) thin film. Then pure CNT and surface-modified CNT (f-CNT) were used as nanofillers at 0.5–3 wt% in bisphenol-A (DGEBA) and phenolic novolac types epoxy (EPN) resins to produce composite materials with superior properties. For characterization of both types of CNTs, FTIR, XRD, SEM, TEM and TGA analyses were performed. The morphologies of composites were examined via XRD and SEM. Thermal properties of composites were revealed by TGA. The influences of CNT surface functionalization and matrix type on the thermal, mechanical, electrical conductivity and surface wettability properties of composites were investigated. EPN based composites exhibited higher mechanical properties than that DGEBA based ones. At 1.5 wt% f-CNTs, the Young's modulus and tensile strength of the nanocomposites were found 6.9 ± 0.50 GPa and 141.0 ± 7.8 MPa, respectively using DGEBA matrix; 8.7 ± 0.59 GPa and 153.4 ± 7.9 MPa respectively, using EPN matrix. Composites electrical conductivity increased with increasing both type CNTs amount and reached a maximum value of 10⁻⁴ S/m and 10⁻⁶ S/m at 3 wt% of neat and f-CNTs contents.

在这项研究中，热化学气相沉积（CVD）方法被用来制造使用Fe / Al催化剂的碳纳米管（CNT）。施加等离子增强CVD（PECVD），以疏水性聚丙烯酸六氟丁酯（PHFBA）薄膜涂覆CNTs表面。然后是纯CNT和表面改性的CNT（f-CNT）在双酚A（DGEBA）和酚醛清漆型环氧（EPN）树脂中用作0.5–3 wt％的纳米填料，以生产性能优异的复合材料。为了表征两种类型的CNT，进行了FTIR，XRD，SEM，TEM和TGA分析。通过XRD和SEM检查复合材料的形态。TGA揭示了复合材料的热性能。研究了碳纳米管表面功能化和基体类型对复合材料的热，机械，电导率和表面润湿性的影响。基于EPN的复合材料比基于DGEBA的复合材料具有更高的机械性能。在1.5 wt％f-CNTs，使用DGEBA矩阵分别测得纳米复合材料的杨氏模量和拉伸强度分别为6.9±0.50 GPa和141.0±7.8 MPa；使用EPN矩阵分别为8.7±0.59 GPa和153.4±7.9 MPa。复合材料的电导率随两种类型的CNT含量的增加而增加， 在纯净含量和f -CNTs含量为3 wt％时达到10 ^-4  S / m和10 ^-6 S / m的最大值。