echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Coatings News > Paints and Coatings Market > New progress has been made in the research of self-healing polyurethane elastomer materials

    New progress has been made in the research of self-healing polyurethane elastomer materials

    • Last Update: 2020-12-16
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    As an intelligent material, self-healing polymer material can repair cracks or local damage caused by external forces during use, thus restoring its original function and extending its service life. The material has potential applications in the fields of surface coating protection, biomedical materials, lithium batteries and aerospace. To meet different applications, the researchers introduced "sacrifice bonds" into polymer materials and developed self-healing plastics, gels or elastomer
    Chinese
    . For self-healing elastomer materials, taking into account good mechanical properties, efficient self-healing efficiency and excellent optical performance is a challenge. With the support of the National Natural Science Foundation of China, Dong Man, a researcher in the Key Laboratory of Engineering Plastics of the Institute of Chemistry of the Chinese Academy of Sciences, has made a series of progress in the development and application of intelligent materials. On this basis, from the molecular design point of view, a new self-healing design strategy, Phase Locked Dynamic Chemical Bonds, was proposed to successfully prepare a colorless transparent, fast self-healing high-tough polymer.
    research work is carried out through a combination of "hard segment locking" and "microphase separation control", and the design of a desulfur-containing self-healing polyurethane elastomer (PUDS) exhibits excellent optical properties of colorless transparency, with a maximum tensile strength of up to 25 MPa and fracture elongation. With a rate of more than 1600%, in mild heating conditions (70oC), elastomer surface scratches can be recovered quickly within 60s, while showing good repeat scratch self-healing function, after multiple scrapes self-repair material fog value of only 0.6%. This colorless, highly transparent self-healing feature makes the material an important application prospect in the field of optics. The results were published in Advanced Materials.
    This article is an English version of an article which is originally in the Chinese language on echemi.com 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 service@echemi.com. 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 service@echemi.com. It will be replied within 5 days.

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