【目的】探究 3-氨丙基三乙氧基硅烷（APTES）水解条件对聚丙烯腈（ PAN）纤维改性效果的影响，以及改性 PAN纤维对防滑涂层力学性能的提升作用。【方法】通过红外光谱仪分析不同 pH下 APTES的水解特性，确定最优水解 pH；采用 APTES对 PAN纤维进行改性，借助微观形貌观察、红外表征探究纤维改性机制；通过附着力测试、磨损实验及三维形貌、摩擦系数测试，对比改性与未改性 PAN纤维对防滑涂层性能的影响。【结果】 pH=9时 APTES相对水解度趋于稳定，此条件下改性的 PAN纤维表面形成纳米级粗糙结构，红外光谱证实 Si—O—C共价键和氨基成功接枝； 3%的 APTES-PAN纤维添加量时，涂层附着力达 13. 5 MPa，较未添加纤维提升 31%；冲击完整率从 50%提升至 100%；600个循环后磨损失质量降低 28%，干、湿、油态摩擦系数分别达到 1. 12、0. 98、0. 88；未改性 PAN纤维对涂层性能无明显提升作用，甚至降低附着力。【结论】 APTES在 pH=9时水解效果最佳，其改性可通过化学键合和机械啮合增强 PAN纤维与涂层的界面结合； 3%APTES-PAN纤维添加量能显著提升防滑涂层的附着力、耐磨性和摩擦系数，构建的协同抗磨损体系可有效优化涂层综合性能。

［Objective］ The purpose of this paper was to investigate the effect of APTES hydrolysis conditions on the modification effect of PAN fibers，and the enhancement effect of modified PAN fibers on the mechanical properties of anti-slip coatings.［Methods］Fourier transform infrared（FT-IR）spectroscopy was used to analyze the hydrolysis characteristics of APTES under different pH values，so as to determine the optimal hydrolysis pH value. APTES was adopted to modify PAN fibers， and the modification mechanism of fibers was analyzed by means of micro-morphology observation andFT-IR characterization. The effects of modified and unmodified PAN fibers on the properties of anti-slip coatings were compared through adhesion test，wear test，three-dimensional morphology test and friction coefficient test.［Results］The hydrolysis degree of APTES tended to be stable under pH=9 value condition. Under this condition，a nano-scale rough structure was formed on the surface of modified PAN fibers，and FT-IR spectroscopy confirmed that Si—O—C covalent bonds and amino groups were successfully grafted. When the addition amount of APTES-PAN fibers was 3%，the coatingadhesion reached 13. 5 MPa，which was 31% higher than that of the group without fiber addition，the impact integrity rate increased from 50% to 100%，after 600 wear cycles，the wear loss was reduced by28%，and the dry，wet and oil friction coefficients reached 1. 12，0.98 and 0.88，respectively. Unmodified PAN fibers indicated no obvious improvement on coating properties，and even reduced the adhesion.［Conclusion］ APTES has the best hydrolysis effect when pH=9. Its modification can enhance the interface bonding between PAN fibers and coatings through chemical bonding andmechanical interlocking. The addition amount of 3%APTES-PAN fibers can significantly improve theadhesion，wear resistance，and friction coefficient of anti-slip coatings，and the constructed synergisticanti-wear system can effectively optimize the comprehensive properties of the coatings.