Coating method of long-chain entangled PDMS gel with sustainable self-replenishment of lubricating layer
AssigneePostech Research and Business Development Foundation
InventorsSang Joon Lee, Gyu Do Park
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Abstract
The present disclosure is related to a coating method of a long-chain entangled PDMS (LEP) gel in which self-replenishment of a lubricating layer is sustainable. More specifically, it is possible to achieve excellent slippery properties, anti-fouling performance, and anti-icing performance for a long period of time due to sustainable self-replenishment performance of a surface coated with LEP gel, by forming LEP gel impregnated with a low-viscosity silicone oil as a lubricant into the surface of long-chain entangled PDMS (LEP), in which long-chain free polymers are entangled in PDMS networks.
Claims9
An underwater structure having a surface coated with a long-chain entangled PDMS (LEP) gel,
- wherein the LEP gel coating is formed by:
- (a) coating the surface of the underwater structure with a prepolymer mixed with high-viscosity silicone oil of 1,000 to 1,000,000 cSt, a silicone base of polydimethylsiloxane (PDMS), and a curing agent;
- (b) curing the coated surface obtained in step (a) to obtain long-chain entangled PDMS;
- and
- (c) immersing the surface with the long-chain entangled PDMS into low-viscosity silicone oil having a viscosity of 0.1 to 30 cSt.
Dependencies are inferred from the claim text.