Abstract Smart self-sensing composites with integrated damage detection capabilities are of particular interests in various applications ranging from aerospace and automotive structural components, to wearable electronics and healthcare devices. Here, we report a straigthforward methodology to introduce and localise conductive nanofillers into existing elastomeric coatings of reinforcing cords for interfacial damage detection in cord-rubber composites. A simple swelling and infusion method was developed to incorporate carbon nanotubes (CNTs) into the elastomeric adhesive coating of glass cords. Conductive CNT-infused glass cords with good self-sensing functions were achieved without affecting the bonding provided by the coating with the rubber matrix. The effectiveness of using these smart cords as interfacial strain and damage sensors in cord-rubber composites was established under static and cyclic loading and demonstrated its potential in identifying both reversible deformation and irreversible interfacial damage. The simplicity of the proposed swelling and infusion methodology provides great promise for large-scale industrial implementation or the modification of existing elastomeric products.

中文翻译：

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使用简单的溶胀和灌注方法通过局部碳纳米管实现具有集成传感能力的智能绳索-橡胶复合材料

摘要 具有集成损伤检测功能的智能自感应复合材料在从航空航天和汽车结构部件到可穿戴电子设备和医疗保健设备的各种应用中受到特别关注。在这里，我们报告了一种直接的方法，将导电纳米填料引入和定位到现有的增强帘线弹性涂层中，用于帘线-橡胶复合材料中的界面损伤检测。开发了一种简单的溶胀和灌注方法，将碳纳米管 (CNT) 结合到玻璃帘线的弹性粘合剂涂层中。在不影响涂层与橡胶基体提供的粘合的情况下，实现了具有良好自感功能的并入导电碳纳米管的玻璃帘线。使用这些智能帘线作为帘线-橡胶复合材料中的界面应变和损伤传感器的有效性是在静态和循环载荷下建立的，并证明了其在识别可逆变形和不可逆界面损伤方面的潜力。所提出的溶胀和灌注方法的简单性为大规模工业实施或现有弹性产品的改进提供了广阔的前景。