A polyacrylate-based wetting agent, BYK-358N, was used to improve the interfacial bonding between the bamboo fibers and epoxy matrix. Fourier transform infrared spectrometer and differential scanning calorimetry were used to study the curing process of epoxy resin. The wettability of the treated bamboo fiber, which by the untreated and wetting agent treated epoxy, was studied using the surface tension of epoxy and bamboo fiber. The analysis of dynamic contact angle and interfacial shear stress confirmed that the composite interface was improved. Finally, Vacuum-assisted resin transfer molding was used to prepare bamboo fiber reinforced epoxy resin (BF/EP) composites, and the tensile properties were measured. The results showed that the addition of the wetting agent could effectively improve the interface compatibility of BF/EP composites. The interfacial shear stress of BF/EP composites treated with 1% wetting agent was 24.36 MPa, tensile strength was 111.54 MPa, and Young's modulus was 3.90 GPa, which was 165.7%, 99.7%, and 66.7% higher than that of untreated BF/EP composites.

聚丙烯酸酯基润湿剂 BYK-358N 用于改善竹纤维和环氧树脂基体之间的界面结合。采用傅里叶变换红外光谱仪和差示扫描量热仪对环氧树脂的固化过程进行研究。使用环氧树脂和竹纤维的表面张力研究了未处理和润湿剂处理过的环氧树脂对处理过的竹纤维的润湿性。动态接触角和界面剪切应力的分析证实复合界面得到改善。最后，采用真空辅助树脂传递成型制备竹纤维增强环氧树脂（BF/EP）复合材料，并测量其拉伸性能。结果表明，润湿剂的加入可以有效提高BF/EP复合材料的界面相容性。