Title:
SELF-HEALING COATING HAVING BIONIC ENVIRONMENT ADAPTABILITY, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/036677
Kind Code:
A1
Abstract:
The present application discloses a self-healing coating having bionic environment adaptability, a preparation method therefor, and an application thereof. The preparation method comprises: carrying out polycondensation on a first mixed reaction system which contains isocyanate and polyol to obtain a prepolymer; enabling a second mixed reaction system which contains a material containing a non-covalent hydrogen bond and/or a material containing a covalent disulfide bond and contains a prepolymer to react, so as to obtain a polyurethane material; mixing the polyurethane material and a modified graphene material, and enabling the modified graphene material to be distributed in the polyurethane material in a parallel arrangement mode, so as to obtain a composite coating of an imitation pearl layer structure; and then curing the composite coating to obtain a self-healing coating having bionic environment adaptability. The self-healing coating having bionic environment adaptability prepared in the present application has high ultimate tensile strength and excellent mechanical properties; moreover, due to the synergistic effect of a dynamic hydrogen bond, a flexible disulfide bond, and an interface hydrogen bond, the present invention exhibits the super-strong mechanical properties and the outstanding self-repairing behavior in the room temperature even saline water environment.
Inventors:
WANG LIPING (CN)
ZHU XIAOBO (CN)
ZHAO HAICHAO (CN)
LU GUANGMING (CN)
ZHU XIAOBO (CN)
ZHAO HAICHAO (CN)
LU GUANGMING (CN)
Application Number:
PCT/CN2022/118366
Publication Date:
February 22, 2024
Filing Date:
September 13, 2022
Export Citation:
Assignee:
NINGBO INSTITUTE OF MATERIALS TECH & ENGINEERING CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
C09D175/08; C08G18/10; C08G18/32; C08G18/38; C09D7/62
Domestic Patent References:
| WO2021179069A1 | 2021-09-16 |
Foreign References:
| CN111423602A | 2020-07-17 | |||
| CN106674996A | 2017-05-17 | |||
| CN110591542A | 2019-12-20 | |||
| CN114685756A | 2022-07-01 |
Attorney, Agent or Firm:
NANJING LI&FENG INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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