Carbon nanotube (CNT) and poly(ethylene-co-methacrylic acid) (EMAA) are used to modify a general epoxy to prepare an adhesive possessing in-situ electrical-heating activated (EHA) crack healing function. EMAA films with ordered holes are prepared and sprayed with various area densities of amino-functionalized CNT to form electro-thermal healing films. Then, EMAA/CNT films are infiltrated with epoxy to prepare EMAA/CNT/epoxy adhesive. Results reveal that the temperature of the adhesive would quickly increase to 150 °C within 2 min with a CNT density of 14 g/m². Also, macro-crack within the adhesive could be in-situ healed completely within 45 min and ultimate strength of the adhesive can be healed by 45.7–52.6% by the EHA method. Moreover, when the adhesive is used to bond a T-joint, the initial damage and ultimate peeling force can be respectively restored to 107% and 71–93%. Namely, the adhesive shows a high healable ability to the crack of a structure.

碳纳米管（CNT）和聚（乙烯-共聚-甲基丙烯酸）（EMAA）用于对普通环氧树脂进行改性，制备具有原位电热活化（EHA）裂纹愈合功能的粘合剂。制备具有有序孔的 EMAA 薄膜，并喷涂不同面积密度的氨基官能化 CNT 以形成电热愈合薄膜。然后，用环氧树脂渗透EMAA/CNT薄膜以制备EMAA/CNT/环氧树脂粘合剂。结果表明，当 CNT 密度为 14 g/m ^{2 时}，粘合剂的温度将在 2 分钟内迅速升高至 150 °C. 此外，粘合剂内的宏观裂纹可以在 45 分钟内完全原位愈合，并且通过 EHA 方法可以将粘合剂的极限强度愈合 45.7-52.6%。此外，当粘合剂用于粘合 T 型接头时，初始损伤和最终剥离力可分别恢复到 107% 和 71-93%。即，粘合剂显示出对结构裂缝的高可修复能力。