• 专利标题:   Polymer composite comprises epoxy based polymer forming polymer matrix, and amino-graphene dispersed throughout polymer matrix, where graphene is functionalized with 3,5-dinitrophenyl groups to form functionalized graphene.
  • 专利号:   US2021363328-A1, WO2021236483-A1, US11499033-B2
  • 发明人:   ZHU S S, ALTAIE I, FIHRI A, SWAGER T M, ALAMRI H A
  • 专利权人:   MASSACHUSETTS INST TECHNOLOGY, SAUDI ARABIAN OIL CO, SAUDI ARABIAN OIL CO, MASSACHUSETTS INST TECHNOLOGY, ARAMCO SERVICES CO
  • 国际专利分类:   C01B032/194, C01B032/19, C08J003/20, C08K003/04, C08G059/24, C08K009/04, C08L063/00
  • 专利详细信息:   US2021363328-A1 25 Nov 2021 C08K-009/04 202104 English
  • 申请详细信息:   US2021363328-A1 US881485 22 May 2020
  • 优先权号:   US881485

▎ 摘  要

NOVELTY - Polymer composite comprises an epoxy based polymer forming a polymer matrix, and an amino-graphene dispersed throughout the polymer matrix, where a graphene is functionalized with 3,5-dinitrophenyl groups to form functionalized graphene and one or more amine functional groups form Meisenheimer complexes with the functionalized graphene to form amino-graphene. USE - Polymer composite used for development of lightweight multifunctional composite materials. ADVANTAGE - The polymer composite demonstrates self-healing capabilities after relaxation of an applied strain, and has epoxy-based thermosetting pipes, which are known for their valuable properties, such as chemical resistance, good mechanical and electrical insulating properties, and low shrinkage which make polymer composite to be effectively used in industrial oil and gas applications. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of forming a polymer composite, involves: (a) Preparing a functionalized graphene by operating an electrochemically driven intercalation process on graphite to form graphene sheets, transferring the graphene sheets to a solution comprising a solution containing 3,5-dinitrobenzenediazonium tetrafluoroborate, and applying a negative potential ramp to the solution to functionalize the graphene sheets with functionalization with 3,5-dinitrophenyl groups and form functionalized graphene. (b)Introducing one or more amines to the functionalized graphene to form Meisenheimer complexes between the functionalized graphene and the one or more amines to form an amino-graphene. (c) Providing an epoxy based polymer, combining the amino-graphene and the epoxy based polymer to disperse the amino-graphene throughout a polymer matrix formed from the epoxy based polymer, and curing the epoxy based polymer.