Polymethyl methacrylate nanocomposite including CuO, TiO₂ and Al₂O₃ nanoparticles (NPs) was studied as an interlayer to enhance properties of ultrasonically welded glass fiber reinforced plastic. Synthesized NPs were characterized by SEM and XRD methods. A multiple regression model based on response surface methodology by using the input parameters of welding time, NP’s weight percentage and thermal conductivity according to analysis of variance was developed. Results showed that applying 2 bar pressure, 0.5 s holding time, 1 wt% CuO, and 0.4 s welding time, the maximum breaking load of 2585 N can be obtained, while with 1 wt% TiO₂ and Al₂O₃ breaking loads of 2198 N and 2069 N can be expected, respectively. Therefore, using CuO, TiO₂ and Al₂O₃ NPs, an increase in the weld strength by a factor of 1.5 can be realized.

_{研究了包含 CuO、TiO 2}和 Al ₂ O ₃纳米颗粒 (NP) 的聚甲基丙烯酸甲酯纳米复合材料作为中间层以增强超声焊接玻璃纤维增​​强塑料的性能。通过 SEM 和 XRD 方法对合成的 NP 进行了表征。根据方差分析，使用焊接时间、NP 重量百分比和导热系数的输入参数，建立了基于响应面法的多元回归模型。结果表明，施加2 bar压力、0.5 s保持时间、1 wt% CuO和0.4 s焊接时间，可以获得2585 N的最大断裂载荷，而使用1 wt% TiO 2 和_Al 2 _O 3_时预计断裂载荷分别为 2198 N 和 2069 N。因此，使用CuO、TiO ₂和Al ₂ O ₃ NPs，可以实现焊接强度提高1.5倍。