Antifouling paint additive and preparation method thereof

A technology of antifouling coatings and additives, applied in the field of coatings, can solve the problems of increased cost, long time, complicated preparation process, etc.

Pending Publication Date: 2020-08-07
青岛盈海涂料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of silane copolymers containing tertiary amino groups in t

Method used

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  • Antifouling paint additive and preparation method thereof

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Embodiment 1

[0019] A preparation method of an antifouling paint additive for slow release of metal ions, comprising the steps of:

[0020] (1) Solution preparation, including: β-cyclodextrin aqueous solution A, cyclodextrin concentration is 20g / L; copper sulfate aqueous solution B, copper sulfate concentration is 1mol / L; sodium hydroxide aqueous solution C, sodium hydroxide concentration is 3mol / L; glucose solution D, glucose concentration is 3mol / L;

[0021] (2) Inject solutions B and C into A at the same time, mix, and apply ultrasonic vibration to the mixture with a vibration frequency of 20kHz to obtain suspension E;

[0022] (3) Under continuous ultrasonic vibration, heat suspension E to 80°C, inject solution D, keep warm for 20 minutes, filter and dry to obtain cyclodextrin-coated cuprous oxide composite material.

Embodiment 2

[0024] A preparation method of an antifouling paint additive for slow release of metal ions, comprising the steps of:

[0025] (1) Solution preparation, including: α-cyclodextrin aqueous solution A, cyclodextrin concentration is 30g / L; copper sulfate aqueous solution B, copper sulfate concentration is 1mol / L; sodium hydroxide aqueous solution C, sodium hydroxide concentration is 4mol / L; glucose solution D, glucose concentration is 4mol / L;

[0026] (2) Inject solutions B and C into A at the same time, mix, and apply ultrasonic vibration to the mixture with a vibration frequency of 30kHz to obtain suspension E;

[0027] (3) Under continuous ultrasonic vibration, heat suspension E to 90°C, inject solution D, keep warm for 30 minutes, filter and dry to obtain cyclodextrin-coated cuprous oxide composite material.

Embodiment 3

[0029] A preparation method of an antifouling paint additive for slow release of metal ions, comprising the steps of:

[0030] (1) Solution preparation, including, γ-cyclodextrin aqueous solution A, cyclodextrin concentration is 40g / L; copper sulfate aqueous solution B, copper sulfate concentration is 2mol / L; sodium hydroxide aqueous solution C, sodium hydroxide concentration is 6mol / L; glucose solution D, glucose concentration is 5mol / L;

[0031] (2) Inject solutions B and C into A at the same time, mix, and apply ultrasonic vibration to the mixture with a vibration frequency of 40kHz to obtain suspension E;

[0032] (3) Under continuous ultrasonic vibration, heat suspension E to 100°C, inject solution D, keep warm for 40 minutes, filter and dry to obtain cyclodextrin-coated cuprous oxide composite material.

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Abstract

The invention relates to an antifouling paint additive capable of slowly releasing metal ions, and in particular, relates to a cyclodextrin coated cuprous oxide composite material. The external part of cyclodextrin is hydrophilic and the internal part is hydrophobic; the complexing action on metal ions is also realized; copper sulfate and sodium hydroxide are injected into a cyclodextrin aqueous solution at the same time, cyclodextrin molecules can be complexed and coated with multiple copper ions, meanwhile, hydroxide ions and the copper ions can also be subjected to a precipitation reaction,and under the action of ultrasonic vibration, the cyclodextrin molecules coat copper hydroxide in a spiral structure of the cyclodextrin molecules. The cyclodextrin-coated cuprous oxide composite material is obtained after glucose reduction and can slowly and continuously release cuprous oxide when applied to a paint, and the lasting antifouling effect is achieved.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to an antifouling coating additive capable of slowly releasing metal ions, in particular to a cyclodextrin-coated cuprous oxide composite material. Background technique [0002] Sea organisms adhere to the hull, which hinders the navigation of the hull, and at the same time, accelerates the corrosion of the seawater on the hull. For this reason, anti-fouling coatings that prevent marine growth are usually applied to the hull. Cuprous oxide is the most commonly used antifouling coating additive, which can effectively prevent the adhesion of marine organisms. However, in practical applications, the cuprous oxide in the antifouling paint tends to release faster, so that the antifouling effect of the antifouling paint cannot last long. [0003] Although, some researchers have proposed to add silane copolymers with tertiary amino groups in the side chains to the paint, and use the tertiary amine ...

Claims

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Application Information

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IPC IPC(8): C09D7/62C09D5/16
CPCC09D5/1618
Inventor 李正香
Owner 青岛盈海涂料科技有限责任公司
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