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Wet 3‐D3‐D printing of epoxy cross‐linked chitosan/carbon microtube composite

机译：弄湿 3-D 3-D 印刷环氧交联壳聚糖/碳微管复合材料

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>Over the last decays, the use of conductive biopolymer composites has been growing in areas such as biosensors, soft robotics, and wound dressing applications. They are generally soft hydrophilic materials with good elastic recovery and compatible with biological environments. However, their application and removal from the host are still challenging mainly due to poor mechanical strength. This work displays a technique for the fabrication of complex‐shaped conductive structures with improved mechanical strength by wet three‐dimensional (3‐D) printing, which uses a coagulation bath to quickly solidify an epoxy cross‐linked chitosan/carbon microtube composite ink. The fabricated conductive structure demonstrated higher elongation strength and improved elastic stability upon the introducing of polypropylene glycol diglycidyl ether (PPGDGE) as the epoxy cross‐linker, which can be due to the formation of networks between oxiran groups of PPGDGE and chitosan amino groups.
机译： 在最后的衰变中，使用导电生物聚合物复合材料在生物传感器，软机器人和伤口敷料应用等区域中生长。它们通常是柔软的亲水材料，具有良好的弹性回收和与生物环境相容。然而，他们的申请和从主机的去除仍然是由于机械强度差而挑战。这项工作显示了通过湿三维（3-D）印刷的改善机械强度的复合形导电结构的技术，其使用凝固浴以快速固化环氧交联壳聚糖/碳微管复合油墨。制造的导电结构在作为环氧交联剂的聚丙二醇二缩水甘油醚（PPGDGE）引入时，伸长强度和改善的弹性稳定性，作为环氧的交联剂，这可能是由于在氧化乙二醇和壳聚糖氨基之间形成网络。< / p>

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