【摘要】 碳纤维增强复合材料（CFRP）因其轻质高强特性在新能源汽车轻量化领域得到广泛应用。然而，碳纤维与树脂基体在化学活性、模量及热膨胀系数等方面的固有差异，导致CFRP界面存在显著的应力集中和残余应力问题，严重制约了CFRP力学性能的充分发挥。综述了通过分子结构设计调控CFRP界面相结构的研究进展。通过引入枝化结构和分子滑轮结构，能够实现CFRP界面性能的同时增强与增韧，为推动CFRP在汽车轻量化领域的广泛应用提供了理论依据和技术支持。更多还原

【Abstract】 Carbon fiber-reinforced polymer composites(CFRP) have been widely used in the lightweighting of new energy vehicles due to their lightweight and high-strength properties. However,the inherent differences in chemical activity,modulus,and thermal expansion coefficient between carbon fiber and the resin matrix lead to significant stress concentration and residual stress at the CFRP interface,which severely limits the mechanical performance of CFRP. The research progress in regulating the phase structure of the CFRP interface through molecular design is systematically reviewed. According to the studies,the introduction of branched structures and molecular pulley mechanisms can achieve synergistic strengthening and toughening of CFRP interface properties,providing theoretical and technical support for the broader application of CFRP in automotive lightweighting.更多还原