The carbon fibres (CFs) sizing has a crucial impact on final properties of CFs reinforced polymer composites. Herein, an industrially-adaptable process for sizing of CFs was employed through a dip-coating process which includes using epoxy sizing solutions mixed with halloysite nanotubes (HNTs). Potential changes in the mechanical properties of the CFs and the characteristics of the resulting composites were evaluated. Epoxy sizing containing various concentrations of HNTs changed the surface roughness, and friction of CFs. The obtained results demonstrated that HNTs does not significantly affect the tensile strength of CFs, however, surface energies, obtained by an inverse gas chromatography technique, are increased. To demonstrate the effect of HNTs on the fibre/epoxy matrix interactions, single fibre fragmentation tests (SFFT) were conducted and consequently apparent interfacial shear strength (IFSS) were calculated. The IFSS increased up to 23% compared to a pure sized CFs and up to 61% compared to an unsized-CFs.

碳纤维（CFs）上浆对CFs增强聚合物复合材料的最终性能具有至关重要的影响。在本文中，通过浸涂工艺采用了工业上适用的CFs施胶工艺，该工艺包括使用混合有埃洛石纳米管（HNTs）的环氧施胶液。评估了CF的机械性能和所得复合材料特性的潜在变化。包含各种浓度的HNT的环氧树脂上浆会改变表面粗糙度和CF的摩擦力。获得的结果表明，HNTs不会显着影响CFs的拉伸强度，但是，通过反相气相色谱技术获得的表面能增加了。为了证明HNT对纤维/环氧基质相互作用的影响，进行了单纤维破碎测试（SFFT），因此计算了表观界面剪切强度（IFSS）。与纯尺寸CFs相比，IFSS最多增加了23％，与非尺寸CFs相比增加了61％。