In this work, styrene-acrylate (SA) coatings were strengthened with renewable natural polymers (carboxymethyl chitosan, CMCS) and crosslinked by multiple hydrogen bonds, which improved the mechanical performance and endowed the self-healing properties. SA latex was synthesized by styrene (St), butyl acrylate (BA), glycidyl methacrylate (GMA) and acrylamide (AM) with semi continuous seed emulsion polymerization. SA coatings were obtained after drying the mixture of SA latex and CMCS. The rigid skeleton of CMCS and hydrogen bonds cross-linked network improved the mechanical properties of SA coatings. The stress and strain improved from 12.3 to 17.9 MPa and 1765% to 2148%. The reversible hydrogen bonding interactions between SA and CMCS made the films had a self-healing efficiency of 68.7%. Moreover, the hardness of SA coatings reached 80.6. Combined with the spraying technique, SA conductive coatings were prepared by spraying carbon nanotubes aqueous dispersions (CNTs) on the surface. The conductivity and sensing ability of the SA conductive coatings were examined by an electrochemical workstation. The results demonstrated that SA conductive coatings had the signal sensing ability for tiny movements, which was of potential applications in the field of sensors.

在这项工作中，苯乙烯-丙烯酸酯 (SA) 涂层用可再生天然聚合物（羧甲基壳聚糖，CMCS）增强并通过多个氢键交联，从而提高了机械性能并赋予了自修复性能。SA胶乳由苯乙烯(St)、丙烯酸丁酯(BA)、甲基丙烯酸缩水甘油酯(GMA)和丙烯酰胺(AM)采用半连续种子乳液聚合法合成。在干燥 SA 胶乳和 CMCS 的混合物后获得 SA 涂层。CMCS的刚性骨架和氢键交联网络改善了SA涂层的力学性能。应力应变从 12.3 提高到 17.9 MPa，从 1765% 提高到 2148%。SA和CMCS之间的可逆氢键相互作用使薄膜具有68.7%的自愈效率。此外，SA涂层的硬度达到80.6。结合喷涂技术，通过在表面喷涂碳纳米管水分散体（CNTs）制备SA导电涂层。SA导电涂层的电导率和传感能力由电化学工作站检测。结果表明，SA导电涂层对微小运动具有信号传感能力，在传感器领域具有潜在应用价值。