Polyvinyl alcohol (PVA)/polyethylene glycol diacrylate (PEGDA)/Agar/sulfuric acid (H₂SO₄) hydrogels with triple-network (TN) structure were successfully fabricated using a facile radiation-assistant method. The as prepared PVA/PEGDA/Agar/H₂SO₄ hydrogels are highly conductive, transparent and self-healing, which are demonstrated as a strain sensor to monitor human activity and an ionic cable to transmit signal. Sulfuric acid plays important roles in this synthesis strategy, which increases the conductive ability, transparency and water retention capacity of the hydrogel. This work proposed a facile method to fabricate physically and chemically cross-linked ion conducting hydrogels, which are promising candidates in flexible electronics.

采用简便的辐射辅助方法成功制备了具有三网状结构的聚乙烯醇（PVA）/聚乙二醇二丙烯酸酯（PEGDA）/琼脂/硫酸（H ₂ SO ₄）水凝胶。制备的PVA / PEGDA /琼脂/ H ₂ SO ₄水凝胶具有高导电性，透明性和自修复性，已被证明是用于监测人体活动的应变传感器和用于传输信号的离子电缆。硫酸在该合成策略中起着重要作用，从而增加了水凝胶的导电能力，透明度和保水能力。这项工作提出了一种简便的方法来制造物理和化学交联的离子传导水凝胶，这在柔性电子学中是有希望的候选者。