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Underwater drag-reducing coating and preparation method thereof

A coating and resin-based technology, applied in the field of preparation of underwater drag-reducing coatings, can solve the problems of high production and maintenance costs, low drag reduction rate, etc., achieve low production costs and maintenance costs, and reduce drag effects

Active Publication Date: 2014-06-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve at least one of the technical problems of low drag reduction rate and high manufacturing and maintenance costs in the existing underwater drag reduction technology, the present invention provides an underwater drag reduction coating

Method used

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  • Underwater drag-reducing coating and preparation method thereof

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Embodiment 1

[0026] Embodiment 1: According to a kind of underwater drag-reducing coating of the present invention, comprise epoxy resin, thinner, auxiliary agent, curing agent, each component is respectively by weight percentage: epoxy resin 70%, thinner 20%, auxiliary Agent 5%, curing agent 5%. The underwater drag-reducing coating of this embodiment, after being placed on the surface of the substrate by the preparation method of the present invention, has a micron-scale pit structure on the surface, which has a good drag-reducing effect and can achieve the purpose of the present invention.

Embodiment 2

[0027] Embodiment 2: Another underwater drag-reducing coating of the present invention, including polyurethane resin, thinner, auxiliary agent, fat-soluble luminous powder, curing agent, each component is respectively by weight percentage: polyurethane resin 65%, thinner 19% %, auxiliary agent 6%, curing agent 10%. The underwater drag-reducing coating of this embodiment also has a good drag-reducing effect after being placed on the surface of the substrate by the preparation method of the present invention, and can achieve the purpose of the present invention.

Embodiment 3

[0028] Embodiment 3: Another underwater drag-reducing coating of the present invention, including silicone resin, thinner, auxiliary agent, fat-soluble luminous powder, curing agent, each component is respectively by weight percentage: silicone resin 60%, Thinner 25%, auxiliary agent 3%, curing agent 12%. The underwater drag-reducing coating of this embodiment, after being placed on the surface of the substrate by the preparation method of the present invention, also has a good drag-reducing effect, and can also achieve the purpose of the present invention.

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Abstract

The invention provides an underwater drag-reducing coating. The underwater drag-reducing coating comprises a resin base material, a thinner, an aid and a curing agent, wherein the surface of the underwater drag-reducing coating is provided with a micron-size pit structure. The invention further provides a preparation method for the underwater drag-reducing coating. According to the underwater drag-reducing coating, a near wall surface flow filed is mainly changed by the micron-size pit structure on the surface of the underwater drag-reducing coating, so that the shear between a solid wall surface and fluid is reduced and the resistance of the fluid on a vehicle is reduced. The resin base, the thinner, the aid and the curing agent are adopted, so that no toxicity and no radiation exist, and no adverse effect on the environment is caused. Underwater drag reduction of different degrees under different environments is realized by changing the specific proportion of the components and controlling the preparation method, so the underwater drag-reducing coating is applicable to different work states. The underwater drag-reducing coating has relatively low manufacturing and maintenance costs.

Description

technical field [0001] The present invention relates to an underwater drag reducing coating and a preparation method of the underwater drag reducing coating, more specifically, to an underwater drag reducing coating with a micron-sized surface pit structure, which has a micron-sized surface A method for preparing an underwater drag-reducing coating with a pit structure. Background technique [0002] Reducing the resistance encountered by surface ships and underwater vehicles during navigation can reduce navigation energy consumption and greatly increase navigation speed, which is of great significance to solving energy problems, protecting the environment and improving ship performance. Regardless of civil, commercial or military use, underwater issues are important topics in marine engineering, so scholars from all over the world are committed to research that can achieve effective drag reduction solutions. [0003] In view of the current underwater drag reduction requirem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06C09D163/00C09D175/04C09D183/04C09D167/00C09D133/00C09D127/12
Inventor 汪家道张岩豆照良陈皓生陈大融
Owner TSINGHUA UNIV
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