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A Universal Strategy for Tough Adhesion of Wet Soft Material

机译：湿柔软材料坚韧粘附的普遍策略

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摘要

Achieving adhesion between hydrogels and diverse materials in a facile and universal way is challenging. Existing methods rely on special chemical or physical properties of the hydrogel and adherends, which lead to limited applicability and complicated pretreatments. A stitch-bonding strategy is proposed here by introducing a polymer chain with versatile functional group and triggerable crosslinking property inspired by catechol chemistry. The polymer chain can stitch the hydrogel by forming a network in topological entanglement with the preexisting hydrogel network, and directly bond to the adherend surface by versatile chemical interactions. Through this, the polymer chain solution works as a universal glue for facile adhesion of hydrogels to diverse substrates like metals, glasses, elastomers, plastics, and living tissues, without requiring any chemical design or pretreatment for the hydrogel and adherends. The adhesion energy between polyacrylamide hydrogel and diverse substrates can reach 200-400 J m(-2), and it can reach approximate to 900 J m(-2)with a toughened polyacrylic acid polyacrylamide hydrogel. The mechanism of stitch-bonding strategy is illustrated by studying various influence factors.
机译：以容易和普通方式实现水凝胶和多样化材料之间的粘连是具有挑战性的。现有方法依赖于水凝胶的特殊化学或物理性质，并粘附，这导致适用性有限和复杂的预处理。通过引入具有多功能官能团的聚合物链和受儿茶酚化学的可引发的交联性能来提出针线键合策略。聚合物链可以通过用预先存在的水凝胶网络形成拓扑缠结的网络，通过多功能化学相互作用直接粘合到被粘物表面的网络。通过这一点，聚合物链溶液作为气体粘附的通用胶水，用于水凝胶的粘附到多样化的基材，如金属，玻璃，弹性体，塑料和活组织，而无需任何用于水凝胶和粘附的化学设计或预处理。聚丙烯酰胺水凝胶和多种底物之间的粘合能量可以达到200-400JM（-2），并且它可以用钢化化的聚丙烯酸聚丙烯酰胺水凝胶达到900Jm（-2）。通过研究各种影响因素来说明针脚键合策略的机制。

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  • 来源
    《Advanced Functional Materials》 |2020年第36期|2003207.1-2003207.8|共8页
  • 作者

    Gao Yang; Chen Jiaojiao; Han Xiuyuan; Pan Yudong; Wang Peiyao; Wang Tiejun; Lu Tongqing;

  • 作者单位

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    diverse adherends; glue polymers; hydrogel adhesion; universal strategy;

    机译：不同的粘附;胶合聚合物;水凝胶粘附;普遍策略;

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