The epoxy composites reinforced with flax/cotton fibers subjected to two surface treatments were prepared by hand lay-up method. Flax/cotton fabrics were subjected to bleaching using hydrogen peroxide, silanization, and two-step modification consisting of both methods. The effects of these treatments were assessed by Fourier Transform Infrared Spectroscopy (FTIR) and the fabric color was examined with accordance to CIELab method. The produced composites were subjected to the assessment of mechanical properties using static tensile and flexural tests. Moreover, impact resistance was evaluated by drop impact tests and the Charpy method. The effect of surface treatment of flax/cotton fabrics on epoxy-based composites thermomechanical properties were studied using dynamic thermomechanical analysis (DMTA) and related to structural changes investigated with scanning electron microscopy (SEM). The realized research showed that the use of a two-stage surface modification of fibers allows the production of composites with increased interfacial adhesion, as well as enhanced mechanical properties in comparison to materials manufactured using unmodified fabrics.

采用手工铺网法制备了亚麻/棉纤维增强的环氧复合材料，该复合材料经过两次表面处理。亚麻/棉织物经过过氧化氢漂白，硅烷化和两种方法组成的两步​​修饰。这些处理的效果通过傅立叶变换红外光谱（FTIR）进行评估，并根据CIELab方法检查织物的颜色。使用静态拉伸和挠曲测试对制得的复合材料进行机械性能评估。此外，抗冲击性通过跌落冲击试验和夏比方法进行评估。使用动态热机械分析（DMTA）研究了亚麻/棉织物的表面处理对环氧基复合材料热机械性能的影响，并与通过扫描电子显微镜（SEM）研究的结构变化有关。一项已完成的研究表明，与未改性织物相比，使用两阶段的纤维表面改性可以生产出具有增强的界面粘合性以及增强的机械性能的复合材料。