In order to improve the interfacial adhesion of stainless-steel mesh reinforced poly(ether-ether-ketone) (SSM/PEEK) heating elements (HEs) used in the resistance welding process for continuous carbon fiber reinforced PEEK composites (CF/PEEK composites), three kinds of surface treatments, sandblasting, aryl diazonium grafting and silane grafting, were adopted on SSM surfaces. The functional groups were grafted successfully according to the Fourier Transform Infrared (FTIR) results and Energy Dispersive Spectrometer (EDS) results, and the surface morphologies of SSM changed significantly after different treatments. Although the tensile performances of sandblasted stainless-steel (SS) wire and sandblasted SSM were distinctly reduced, the lap shear strength (LSS) of joints with sandblasted SSM still slightly improved. Besides, the interfacial shear strength (IFSS) increased from 28 MPa for untreated SSM to 34 MPa for diazonium grafted SSM and 38 MPa for silane grafted SSM. Furthermore, the LSS results were in agreement with this trend, representing a 9% improvement for joints with diazonium grafted SSM and a 23% improvement for joints with silane grafted SSM compared with untreated CF/PEEK joints. After comparison, silane grafting was the most suitable surface modification for resistance-welded CF/PEEK joints. The interfacial bonding mechanism of CF/PEEK joints with silane grafted SSM was compared with that of untreated CF/PEEK joints, suggesting that the mechanical interlocking contributed to improved interfacial bonding.

为了提高不锈钢网状增强聚醚醚酮（SSM / PEEK）加热元件（HEs）的界面粘合性，该元件用于连续碳纤维增强PEEK复合材料（CF / PEEK复合材料）的电阻焊工艺中，在SSM表面采用了三种表面处理：喷砂，芳基重氮接枝和硅烷接枝。根据傅立叶变换红外（FTIR）结果和能量分散光谱仪（EDS）结果成功接枝了官能团，不同处理后SSM的表面形态发生了显着变化。尽管喷砂不锈钢丝和喷砂SSM的拉伸性能明显降低，但喷砂SSM接头的搭接剪切强度（LSS）仍略有提高。除了，界面剪切强度（IFSS）从未处理SSM的28 MPa增加到重氮接枝SSM的34 MPa和硅烷接枝SSM的38 MPa。此外，LSS结果与该趋势一致，与未处理的CF / PEEK接头相比，重氮接枝SSM的接头提高了9％，而硅烷接枝SSM的接头提高了23％。经过比较，硅烷接枝是电阻焊CF / PEEK接头最合适的表面改性。将CF / PEEK接头与硅烷接枝的SSM的界面粘合机理与未处理的CF / PEEK接头的界面粘合机理进行了比较，表明机械互锁有助于改善界面粘合。LSS结果与这种趋势相吻合，与未处理的CF / PEEK接头相比，重氮接枝SSM的接头提高了9％，硅烷偶联SSM的接头提高了23％。经过比较，硅烷接枝是电阻焊CF / PEEK接头最合适的表面改性。将CF / PEEK接头与硅烷接枝的SSM的界面粘合机理与未处理的CF / PEEK接头的界面粘合机理进行了比较，表明机械互锁有助于改善界面粘合。LSS结果与这一趋势相吻合，与未处理的CF / PEEK接头相比，重氮接枝SSM的接头提高了9％，硅烷偶联SSM的接头提高了23％。经过比较，硅烷接枝是电阻焊CF / PEEK接头最合适的表面改性。将CF / PEEK接头与硅烷接枝的SSM的界面粘合机理与未处理的CF / PEEK接头的界面粘合机理进行了比较，表明机械互锁有助于改善界面粘合。硅烷接枝是电阻焊CF / PEEK接头最合适的表面改性。将CF / PEEK接头与硅烷接枝的SSM的界面粘合机理与未处理的CF / PEEK接头的界面粘合机理进行了比较，表明机械互锁有助于改善界面粘合。硅烷接枝是电阻焊CF / PEEK接头最合适的表面改性。将CF / PEEK接头与硅烷接枝的SSM的界面粘合机理与未处理的CF / PEEK接头的界面粘合机理进行了比较，表明机械互锁有助于改善界面粘合。