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Method for preparing low-toxicity marine antifouling paint by applying Cu2O submicrospheres

A marine antifouling and submicrosphere technology, which is applied in antifouling/underwater coatings, rubber derivative coatings, coatings, etc., can solve the problems of high particle density, uneven mixing, and affecting the killing effect, so that it is not easy to deposit , Prolong anti-fouling effect, reduce the effect of dosage

Inactive Publication Date: 2009-09-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional Cu 2 O particle density is high (6.0g / cm 3 ), when mixed with organic substances to form antifouling coatings or inorganic / organic composite materials, it is easy to cause uneven mixing and even deposits on the surface of the base material, seriously affecting the biocidal effect

Method used

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  • Method for preparing low-toxicity marine antifouling paint by applying Cu2O submicrospheres
  • Method for preparing low-toxicity marine antifouling paint by applying Cu2O submicrospheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Cu 2 O hollow submicrospheres alone as antifouling agent

[0026] The average particle size is 290nm, the specific surface area is 88.6m 2 / g Cu 2 20g of O hollow submicrospheres, 40g of acrylic resin, 15g of zinc oxide, 10g of red iron oxide, 5g of talcum powder, and 10g of xylene were put into a ball mill and ground for 4 hours at 2000r / min to prepare 100g of low-toxic marine antifouling paint.

[0027] The low-toxic antifouling paint was painted on the sandblasting sample plate required by the national standard GB6824-86, and the paint at the section was observed with a scanning electron microscope (SEM). The results showed that Cu 2 O hollow submicrospheres are uniformly dispersed in the coating; according to the national standard GB6824-86, the copper ion exudation rate is measured at 10 μg / (cm 2 d) above, and the downward trend is slow with time, and the antifouling period is long.

Embodiment 2

[0028] Example 2: Cu 2 O hollow submicrospheres alone as antifouling agent

[0029] The average particle size is 500nm, the specific surface area is 81.6m 2 / g Cu 210g of hollow submicrospheres, 50g of vinyl resin, 10g of zinc oxide, 10g of red iron oxide, 5g of talcum powder, and 15g of mixed xylene were put into a ball mill and ground for 2 hours at 2000r / min to prepare 100g of low-toxic marine antifouling paint.

Embodiment 3

[0030] Example 3: Cu 2 O hollow submicrospheres alone as antifouling agent

[0031] The average particle size is 150nm, the specific surface area is 89.4m 2 / g Cu 2 70g of O hollow submicrospheres, 10g of chlorinated rubber, 5g of zinc oxide, 10g of talcum powder, and 5g of mixed xylene were put into a ball mill and ground for 2 hours at 2000r / min to prepare a low-toxic marine antifouling coating.

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Abstract

The invention discloses a method for preparing a low-toxicity marine antifouling paint by applying Cu2O hollow submicrospheres, and belongs to the fields of preparation and application of inorganic functional materials and marine antifouling paints. The method applies the Cu2O hollow submicrospheres singly or the Cu2O hollow submicrospheres embedded with a nontoxic organic antifouling composition as an antifouling composition to prepare the low-toxicity marine antifouling paint; and the antifouling composition, resin base stock, pigment (filler), and solvent are added to a ball mill for grinding to prepare the marine antifouling paint, wherein the antifouling composition consists of the Cu2O hollow submicrospheres with adjustable grain diameter (150-500nm), hollow structures and porous surfaces or the Cu2O hollow submicrospheres embedded with other antifouling compositions. The method has the characteristics that the Cu2O grain diameter reaches nano / micron grade, and grains in the paint are distributed uniformly; and the special appearance of the hollow structures and the porous surfaces can be used for embedding and slowly releasing other nontoxic organic antifouling compositions, reduces Cu2O dosage and has the function of cooperative antifouling so as to prolong the antifouling term, strengthen the antifouling effect and reduce the emission pollution.

Description

technical field [0001] a Cu 2 The invention discloses a method for preparing O hollow submicrospheres applied to low-toxic marine antifouling coatings, and belongs to the field of preparation and application of inorganic functional materials and marine antifouling coatings. Background technique [0002] After marine organisms adhere to the surface of the ship, not only will the speed of the ship be reduced, the maneuverability will be reduced, and the fuel consumption will be increased. Moreover, the biofouling process will also produce organic acids, which will intensify the corrosion of ships, seawater desalination equipment, and underwater facilities. , the service life is significantly shortened. Therefore, coating antifouling coatings is an important way to solve the problem of fouling both economically and efficiently. [0003] Cuprous oxide (Cu 2 O) is an important low-level biocides, insecticides and fungicides, especially widely used in antifouling coatings on sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16C09D7/12C09D133/02C09D123/04C09D161/06C09D115/02
Inventor 方云樊晔蔡婉瑛郭奕柯磊
Owner JIANGNAN UNIV
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