US 11,952,507 B2
Method of constructing solid slippery surface
Tengfei Xiang, Ma'an Shan (CN); Depeng Chen, Ma'an Shan (CN); and Zhong Lv, Ma'an Shan (CN)
Assigned to Anhui University of Technology, Ma'an Shan (CN)
Filed by Anhui University of Technology, Ma'an Shan (CN)
Filed on Aug. 24, 2023, as Appl. No. 18/454,858.
Claims priority of application No. 2022110232368 (CN), filed on Aug. 25, 2022.
Prior Publication US 2024/0067834 A1, Feb. 29, 2024
Int. Cl. C09D 5/16 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); C09D 191/08 (2006.01); C25D 11/34 (2006.01)
CPC C09D 5/1656 (2013.01) [C09D 5/1693 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 191/08 (2013.01); C25D 11/34 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of constructing a solid slippery surface, comprising:
(1) constructing a metal oxide coating on the surface of a metal substrate by anodic oxidation, and then modifying the metal oxide coating using a low surface energy material to afford a superhydrophobic coating; and
(2) fulling mixing photothermal nanoparticles and solid paraffin, followed by infusing the mixture onto the surface of said superhydrophobic coating to afford said solid slippery surface;
wherein said photothermal nanoparticles are graphene oxide-supported ferric oxide nanoparticles;
wherein a process of preparing said photothermal nanoparticles specifically comprises adding a mixture solution of a ferric salt and a ferrous salt in a graphene oxide solution, adjusting the pH value to alkaline after mixing, stirring the mixture for reaction, separating a precipitate to afford said photothermal nanoparticles; and
wherein a mass ratio of the ferric salt to the ferrous salt in said mixture solution is 5-9:3; said ferric salt is FeCl3; said ferrous salt is FeCl2; and a ratio of the total mass of the ferric salt and the ferrous salt in said mixture solution to the mass of graphene oxide in the graphene oxide solution is 15-50:1.