echemi logo
  • Product
  • Supplier
  • Inquiry
    Home > Chemicals Industry > Chemical Technology > Issue 12/2021 - Tough and repairable new material successfully prepared

    Issue 12/2021 - Tough and repairable new material successfully prepared

    • Last Update: 2022-11-14
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit

    Researchers at Nanjing University of Science and Technology and Sichuan University have developed a hard and strong repairable material
    inspired by dragonfly wings.

    Inspired by the ability of organisms to repair their own structure, properties and specific functions, researchers have developed a series of repairable polymer materials
    based on supramolecular interactions.
    Since non-covalent interactions can reversibly break and bind at the molecular level, these materials not only theoretically have unlimited repair capabilities, but also repair their original functions

    Dragonfly wings have a unique hierarchical structure
    from micro-nano scale to macro scale.
    Studies have confirmed that the wings of dragonflies are lightweight, and their specific strength and specific stiffness are higher than commercial aviation aluminum alloys
    At the same time, it also has a highly regular grading structure and special cracking effect, as well as excellent toughness, bearing capacity and fatigue resistance, which also provides protection for the wings and prevents air friction from breaking the dragonfly wings

    In view of this, the researchers implanted a three-dimensional interconnected dragonfly-like wing microstructure skeleton in a hard and brittle repairable polymer matrix through the idea of stereomatic, which solved the problem
    of brittle fracture of rigid repairable materials.
    Compared with the initial material, the comprehensive mechanical properties of the biomimetic composite have been significantly improved, and its stiffness has increased by 3.
    8 times, the strength by 25 times, the strain by 7.
    9 times, and the fracture toughness by 54.
    3 times

    This article is an English version of an article which is originally in the Chinese language on and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to with relevant evidence.