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Epoxy modified polysiloxane low surface energy antifouling coating and preparation method thereof

A low surface energy, epoxy-modified technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problem of easy peeling, difficult repainting, and changes in the surface state of antifouling coatings and other problems to achieve the effect of increasing adhesion and ensuring adhesion

Active Publication Date: 2012-12-26
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of low surface energy antifouling coatings is that the interlayer adhesion between the antifouling coating and the primer and between the antifouling coatings is poor, and it is easy to peel off, thus changing the surface state of the antifouling coating; only It can be applied to the specified film thickness at one time, and it is difficult to recoat

Method used

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  • Epoxy modified polysiloxane low surface energy antifouling coating and preparation method thereof
  • Epoxy modified polysiloxane low surface energy antifouling coating and preparation method thereof

Examples

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Embodiment Construction

[0022] Specific examples of the epoxy-modified polysiloxane antifouling coating formulation of the present invention are shown in the following table.

[0023]

[0024] Preparation of epoxy-modified polysiloxane antifouling paint: In a stainless steel bucket, add various components in sequence according to the paint preparation method, stir at high speed for 0.25h, grind with a sand mill for 0.5h, and discharge to the stainless steel tank. In the material barrel, add low surface energy additives, stir at a high speed for 0.2h, and discharge the material to obtain component A in the coating; when used, 100 parts by weight of component A and 15 parts by weight of component B are mixed uniformly to make Epoxy modified polysiloxane low surface energy coating.

[0025] The epoxy-modified polysiloxane coating achieves the following properties:

[0026]

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Abstract

The present invention relates to an epoxy modified polysiloxane low surface energy antifouling coating and a preparation method thereof. The coating comprises, by weight, 100 parts of a component A and 10-60 parts of a component B, wherein the component A comprises, by weight, 100-150 parts of an epoxy-modified polysiloxane resin, 50-100 parts of a low surface energy filler, 50-100 parts of a volume filler, 5-50 parts of a pigment, 0-20 parts of an additive, and 0-100 parts of an organic solvent, and the component B comprises a silane coupling agent. After the antifouling coating of the present invention is coated on an epoxy prime coat, the hydroxyl group in the epoxy-modified polysiloxane resin can react with the hydroxyl group and the epoxy group in the epoxy prime coat, such that adhesion on the prime coat by the antifouling top coat is increased. When the antifouling coating of the present invention is secondarily coated, the hydroxyl active group in the top layer, and the epoxy group and the hydroxyl group in the lower layer are subjected to a chemical reaction so as to ensure adhesion between different antifouling coatings.

Description

technical field [0001] The invention relates to an epoxy-modified polysiloxane low surface energy antifouling paint and a preparation method thereof, and relates to the fields of paint and marine engineering. technical background [0002] During the use of ships, wharves, platforms and other marine structures, there are marine organisms attached to fouling. Marine biofouling mainly occurs in the underwater part of offshore structures. Adsorbed on the bottom of the ship, it will increase the navigation resistance and fuel consumption, reduce the navigation speed, and seriously affect the maneuverability of the ship; adsorbed on the platform, it will affect the lifting, towing and weight distribution of the platform; adsorbed on the surface of other structures in the ocean, it will Accelerate the corrosion of steel and concrete and affect the safe use of marine structures. Coating low surface energy antifouling coatings on the surface of marine structures is an effective way...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D5/16
Inventor 邵怀启韩文礼解蓓蓓周冰
Owner BC P INC CHINA NAT PETROLEUM CORP
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