Poly (p-phenylene-2,6-benzobisoxazole) fibers treated by random copolymer P(S-co-BCB-co-MMA) membrane and UV etching (UV-PBO@P fibers) are performed as reinforcement, bisphenol AF/amantadine modified bisphenol A cyanate ester (AEAF-co-BADCy) resin as polymeric matrix, and the UV-PBO@P fibers/AEAF-co-BADCy wave-transparent laminated composites were then fabricated. When the P(S-co-BCB-co-MMA) membrane thickness is 62.3 nm and the UV etching time is 96 h, UV-PBO@P fibers display the best interfacial compatibility with AEAF-co-BADCy resin, and the corresponding wave-transparent laminated composites present the optimal comprehensive performance. Interlaminar shear strength (ILSS) and flexural strength are 50.2 and 745.6 MPa, 27.4% and 21.6% higher than those (ILSS of 39.4 MPa, flexural strength of 613.3 MPa) of pristine PBO fibers/AEAF-co-BADCy wave-transparent laminated composites, respectively. And the composites possess low complex permittivity and tanδ, corresponding |T|² in the X band is 88.9–94.2%. High-frequency structural simulation (HFSS) results demonstrate that the radome from the composites displays high |T|² of 89.1–93.1% in the X-band, close to the theoretical calculation value. This work provides a certain theoretical guidance for fabricating lightweight, high strength, and high |T|² polymer matrix wave-transparent composites, and further broadens the application of PBO fibers and cyanate ester resins in aviation/aerospace, 5G communication services, electronic information, and other fields.

通过无规共聚物P（S - co -BCB - co -MMA）膜和UV蚀刻（UV-PBO @ P纤维）处理的聚对苯二甲2,6-苯并二恶唑纤维进行增强，双酚AF /金刚烷胺改性双酚A氰酸酯（AEAF- co- BADCy）树脂为聚合物基体，然后制备UV-PBO @ P纤维/ AEAF - co -BADCy透明波状层压复合材料。当P（S- co -BCB- co- MMA）膜厚度为62.3 nm，UV蚀刻时间为96 h时，UV-PBO @ P纤维与AEAF- co-的最佳界面相容性BADCy树脂和相应的波透明层压复合材料具有最佳的综合性能。层间剪切强度（ILSS）和弯曲强度分别为50.2和745.6 MPa，分别比原始PBO纤维/ AEAF-co-BADCy波透明层压复合材料的层间剪切强度（ILSS 39.4 MPa，弯曲强度613.3 MPa）高27.4％和21.6％ ， 分别。而复合材料具有低复介电常数和棕褐色δ对应| T | X波段中的²为88.9–94.2％。高频结构仿真（HFSS）结果表明，复合材料的天线罩显示出较高的| T |。²在X波段为89.1–93.1％，接近理论计算值。这项工作为制造轻质，高强度和高强度提供了一定的理论指导。T | ²聚合物基波透明复合材料，并进一步拓宽了PBO纤维和氰酸酯树脂在航空/航天，5G通信服务，电子信息等领域的应用。