[目的]为解决传统达克罗涂料中六价铬的致癌风险、高温固化能耗高、摩擦因数偏大及需附加润滑涂层等问题，开发一种兼具优异耐腐蚀性能、低摩擦因数及良好环境相容性的单次涂装达克罗涂料。[方法]采用自制的硅烷水解预聚物作为成膜基料，以片状锌粉和铝粉作为防锈颜料，并引入石墨烯/多壁碳纳米管预分散浆料。在此基础上，结合低温固化技术添加聚四氟乙烯(PTFE)乳液，通过系统调控预分散工艺参数、固化温度及PTFE乳液的粒径与添加量，对所得涂层的综合性能进行了测试与评价。[结果]石墨烯/多壁碳纳米管预分散浆的引入显著提升了涂层的耐盐雾性能。160°C固化时涂层的综合性能最优。在聚四氟乙烯乳液粒径为50 nm、添加量为1%～3%(质量分数)的条件下，涂层的耐盐雾时间长达1 344 h，动摩擦因数低至0.07。[结论]该低温固化水性无铬达克罗涂料具有良好的防腐与润滑功能，无需二次涂装，降低了能耗与污染，符合绿色制造要求，具有较广阔的应用前景。

[Objective] To address the issues associated with traditional Dacromet coatings, including the carcinogenic risk of hexavalent chromium, high energy consumption due to high-temperature curing, relatively large friction coefficients, and the need for additional lubricating topcoats, a single-coat Dacromet coating with excellent corrosion resistance, low friction coefficient, and good environmental compatibility was developed. [Method] A in-house synthesized hydrolyzed silane prepolymer was used as the film-forming material, with flaky zinc and aluminum powders serving as anticorrosion pigments, and a pre-dispersed graphene/multi-walled carbon nanotube(MWCNT) slurry was incorporated. Furthermore, polytetrafluoroethylene(PTFE) emulsion was added by low-temperature curing technology. The comprehensive properties of the resulting coatings were tested and evaluated by systematically controlling the predispersion process parameters, curing temperature, as well as the particle size and dosage of the PTFE emulsion. [Result] The introduction of the pre-dispersed graphene/MWCNT slurry significantly enhanced the salt spray resistance of the coating. The optimal comprehensive performance of the coating was achieved when cured at 160°C. The coating prepared with 1%-30%(by mass) of PTFE emulsion with a particle size of 50 nm exhibited a neutral salt spray resistance up to 1 344 hours and a dynamic friction coefficient as low as 0.07. [Conclusion] The low-temperature curable, water-based, and chromium-free Dacromet coating possesses excellent anticorrosion and lubricating functions. It eliminates the need for secondary coating, reduces energy consumption and pollution, aligns with the requirement of green manufacturing, and demonstrates broad application prospects.