echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Chemicals Industry > New Chemical Materials > Hyperbranched polyester toughened biodegradable starch material

    Hyperbranched polyester toughened biodegradable starch material

    • Last Update: 2021-12-13
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Blending starch with polybutylene succinate can not only reduce the cost of the product, but also endow the product with complete biodegradability.
    However, the unplasticized starch contains a large number of hydrogen bonds between and within the molecule, resulting in The mobility of starch molecular chains is poor.
    If this kind of starch with poor fluidity and hydrophilicity is directly blended with polybutylene succinate with good fluidity and hydrophobicity, it will easily lead to incompatibility of the two phases of the material
    .
    Yang Jinghui et al.
    prepared polybutylene succinate-based fully biodegradable material and its preparation method, using thermoplastic phosphate starch masterbatch, using low-cost hyperbranched polyester as a reaction-type assistant to improve the thermoplasticity and fluidity of starch At the same time, the compatibility and toughness of starch and polybutylene succinate are improved
    .
    Among them, the dendritic aliphatic polyester is Perstorp, Bolrotn@H40
    .
    The function is described as follows: 1.
    It has a dense and non-crosslinked polyester branch structure, which is easy to undergo transesterification reaction with polybutylene succinate in the molten state to obtain better compatibility
    .
    2.
    The abundant hydroxyl groups on the surface of hyperbranched polyesters are prone to hydrogen bonding with the hydroxyl groups of starch molecular chains, weakening the effect of the intermolecular and intramolecular hydrogen bonds of starch, and improving the dispersibility and fluidity of starch.
    3.
    Hyperbranched polyesters The cavity structure in the molecule can absorb impact energy and improve the toughness of the material
    .
    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.