In recent years, attempts to improve the mechanical properties of composites have increased remarkably owing to the inadequate utilization of matrices in demanding technological systems where efficiency, durability, and environmental compatibility are the key requirements. The search for novel materials that can potentially have enhanced mechanical properties continues. Recent studies have demonstrated that two-dimensional (2D) nanomaterials can act as excellent reinforcements because they possess high modulus of elasticity, high strength, and ultralow friction. By incorporating 2D nanomaterials in a composite, 2D nanomaterial-based composites (2DNBCs) have been developed. In view of this, a critical review of recent mechanical and tribological studies based on 2DNBCs has been undertaken. Matrices such as polymers, ceramics, and metals, as well as most of the representative 2D nanomaterial reinforcements such as graphene, boron nitride (BN), molybdenum disulfide (MoS2), and transition metal carbides and nitrides (MXenes) have been included in this review. Their preparation strategies, intrinsic mechanical properties, friction and lubrication performances, strengthening mechanisms, influencing factors, and potential applications have been comprehensively discussed. A brief summary and prospects are given in the final part, which would be useful in designing and fabricating advanced 2D nanocomposites in the future.

中文翻译：

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包含二维材料的纳米复合材料的力学和摩擦学性能

近年来，由于在效率，耐用性和环境相容性是关键要求的苛刻技术系统中矩阵的利用率不高，因此改善复合材料机械性能的尝试已显着增加。继续寻找可能具有增强的机械性能的新型材料。最近的研究表明，二维（2D）纳米材料可以用作出色的增强材料，因为它们具有高弹性模量，高强度和超低摩擦力。通过将2D纳米材料掺入复合材料，已开发出基于2D纳米材料的复合材料（2DNBC）。有鉴于此，已经对基于2DNBC的近期机械和摩擦学研究进行了严格的审查。诸如聚合物，陶瓷和金属之类的基质，以及大多数代表性的2D纳米材料增强材料，例如石墨烯，氮化硼（BN），二硫化钼（MoS2）以及过渡金属碳化物和氮化物（MXenes），均已包括在本评论中。他们的制备策略，内在的机械性能，摩擦和润滑性能，增强机理，影响因素以及潜在的应用已经进行了全面的讨论。最后一部分给出了简短的总结和展望，这对将来设计和制造先进的2D纳米复合材料很有用。内在的机械性能，摩擦和润滑性能，增强机理，影响因素以及潜在的应用已被全面讨论。最后一部分给出了简短的总结和展望，这对将来设计和制造先进的2D纳米复合材料很有用。内在的机械性能，摩擦和润滑性能，强化机理，影响因素以及潜在的应用已被全面讨论。最后一部分给出了简短的总结和展望，这对将来设计和制造先进的2D纳米复合材料很有用。