公开(公告)号：US20230257597A1

公开(公告)日：2023-08-17

申请号：US18139356

申请日：2023-04-26

Applicant: GUILIN UNIVERSITY OF TECHNOLOGY

Inventor： PING CHEN ,  YANG MING ,  LING LI ,  CHENG HU ,  QING LI ,  XUANDONG CHEN ,  RONGJIN LIU ,  SHUNKAI LI ,  YANRONG ZHAO ,  JIAZHAN WEI

IPC: C09D5/44 ,  B01J13/16 ,  C09D5/10 ,  C09D175/14 ,  C04B20/10 ,  C25D13/12 ,  C25D13/20

CPC classification number: C09D5/448 ,  B01J13/16 ,  C09D5/106 ,  C09D5/4465 ,  C09D175/14 ,  C04B20/1037 ,  C25D13/12 ,  C25D13/20

Abstract: A preparation method for a corrosion-resistant coating of a reinforcing steel for marine concrete, comprising the steps: (1) pretreating the surface of a reinforcing steel; (2) preparing self-repairing corrosion microcapsules; (3) preparing a cathodic electrophoresis coating; (4) carrying out cathodic electrophoresis; and (5) curing. The electrophoresis coating of the present invention contains the self-repairing corrosion microcapsules, metal powder, and graphene oxide powder. The corrosion resistance of the coating is improved under the co-action of the self-repairing properties of the self-repairing microcapsules and cathodic protection. The corrosion-resistant coating has excellent adhesion and corrosion resistance, prolonging the service life of reinforcing steel. It is widely used for the protection of reinforcing steels for marine concrete, and also for the protection of metal structures in general environment.

公开(公告)号：US20230257594A1

公开(公告)日：2023-08-17

申请号：US18304315

申请日：2023-04-20

Applicant: GUILIN UNIVERSITY OF TECHNOLOGY

Inventor： YANG MING ,  PING CHEN ,  LING LI ,  CHENG HU ,  QING LI ,  XUANDONG CHEN ,  RONGJIN LIU ,  SHUNKAI LI ,  YANRONG ZHAO ,  JIAZHAN WEI

IPC: C09D5/10 ,  C09D163/00 ,  C09D7/40 ,  C09D7/65 ,  C09D7/61 ,  C09D7/63 ,  C09D7/48 ,  C09D7/45 ,  C09D7/47 ,  C09D7/43 ,  B01J13/14 ,  C04B41/00 ,  C04B41/45 ,  C04B41/48 ,  C04B41/63

CPC classification number: C09D5/106 ,  B01J13/14 ,  C04B41/009 ,  C04B41/63 ,  C04B41/4539 ,  C04B41/4543 ,  C04B41/4853 ,  C09D7/43 ,  C09D7/45 ,  C09D7/47 ,  C09D7/48 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D7/69 ,  C09D7/70 ,  C09D163/00

Abstract: The invention discloses a corrosion resistant coating for marine engineering concrete and a preparation method thereof, the corrosion resistant coating being sprayed or brushed on the concrete surface after being uniformly mixed by component A and component B,wherein the component A is calculated by weight including: waterborne non-ionic epoxy resin, C10-C12 alkyl glycidyl ether, polyhedral oligomeric silsesquioxane, metal powder, magnesium aluminum hydrotalcite powder,dispersant,defoamer; and the component B is calculated by weight including: modified aromatic amine curing agent, C10-C12 alkyl glycidyl ether, self-healing micro capsules, leveling agent, antioxidant, adhesion promoter, and other additives. The corrosion resistant coating of the present invention has excellent adhesion and corrosion resistance, while being able to achieve self-healing of the corrosion-resistant coating and prevent the migration of chloride ions, thereby prolonging the service life of the concrete structure, so that it can be widely used for the protection of marine engineering concrete structures.