为避免公路图标和标识线受到恶劣环境的侵蚀，延长公路图标和标识线使用寿命，研究用于公路的丙烯酸酯类聚氨酯/碳纳米管材料的制备与性能分析。采用异佛尔酮-二异氰酸酯、偶氮二异丁腈等材料制备实验用丙烯酸酯类聚氨酯，分别在其中添加质量分数为0.2%、0.4%以及0.6%酸化处理后的碳纳米管，制成3种不同碳纳米管掺量的试样，通过力学性能测试以及耐磨性测试分析每种试样的应用效果。结果表明：当碳纳米管质量分数为0.2%时，材料的力学性能及耐磨性较弱，可见添加较少的碳纳米管无法提高材料性能；当碳纳米管掺量达到0.6%时，材料基础性能明显低于碳纳米管质量分数为0.4%时的试样。在不同方法测试下，添加质量分数0.4%碳纳米管的试样可以保持优异的热稳定性，当处于高温状态时，材料的拉伸强度和撕裂强度均保持较高水平，且磨损率相对较低。因此，添加质量分数0.4%碳纳米管的丙烯酸酯类聚氨酯更适用于公路建设。

To avoid the erosion of highway icons and signage lines by harsh environments and extend their service life, the preparation and performance analysis of acrylic polyurethane/carbon nanotube materials for highways were studied. Experimental acrylic polyurethane was prepared using materials such as isophorone diisocyanate and azobisisobutyronitrile. Carbon nanotubes with mass fractions of 0.2%, 0.4% and 0.6% after acidification treatment were added to the polyurethane, and three different carbon nanotube dosages were prepared as samples. The application effects of each sample were analyzed through a mechanical property test and a wear resistance test. The results show that when the mass fraction of carbon nanotubes is 0.2%, the mechanical properties and wear resistance of the materials are weak, indicating that adding fewer carbon nanotubes cannot improve material quality. When the carbon nanotube mass fraction reaches 0.6%, its basic performance is significantly lower than that of the sample with a carbon nanotube mass fraction of 0.4%. Under different testing methods, the sample with 0.4% mass fraction carbon nanotubes added can maintain excellent thermal stability. The tensile strength and tear strength of the materials are at a high level in a high temperature state, and the wear rate is relatively low. Therefore, acrylic polyurethane with 0.4% mass fraction of carbon nanotubes added is more suitable for highway construction.