Carbon Nanotubes (CNT) are important fillers and reinforcing agents, frequently used in polymeric composites. CNT agglomerate and entangle with each other due to the presence of strong van der Waal forces between them. This agglomeration not only results in decreased product quality but also in lower conductance of composite than expected. Deagglomeration of CNT bundles is necessary for a better dispersion either through chemical functionalization (covalent or non-covalent) or by mechanical methods (stirring, calendering and ultrasonication). This review contains different methods for chemical surface modification of CNT, which not only decrease CNT-matrix interface resistance by providing a soft interface between filler and matrix but also increases CNT dispersion in different types of matrices.

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综述——碳纳米管的表面改性：控制电化学性能的工具

碳纳米管 (CNT) 是重要的填料和增强剂，常用于聚合物复合材料。由于它们之间存在强大的范德华力，CNT 彼此附聚和缠结。这种团聚不仅会导致产品质量下降，还会导致复合材料的电导率低于预期。通过化学功能化（共价或非共价）或机械方法（搅拌、压延和超声处理），CNT 束的解聚对于更好的分散是必要的。本综述包含不同的 CNT 化学表面改性方法，这些方法不仅通过在填料和基体之间提供软界面来降低 CNT-基体界面电阻，而且还增加了 CNT 在不同类型基体中的分散。