A preparation method of anti-fouling material with needle-shaped filler oriented arrangement

Abstract

The invention belongs to the technical field of antifouling paint preparation, and relates to an antifouling material with a directionally arranged acicular filler and a preparation method thereof. The antifouling material is prepared from a self-polishing resin, rosin, a main antifouling compound, an auxiliary antifouling compound, a pigment, an acicular filler, a surfactant, an aid and a solvent. The preparation method comprises the following steps: sequentially adding the self-polishing resin, rosin, main antifouling compound, auxiliary antifouling compound, pigment, surfactant and solvent into a container according to the set parts by mass, carrying out ball milling or high-speed stirring, sequentially adding the aid and acicular filler according to the set parts by mass, stirring to obtain an antifouling paint, coating the antifouling paint onto a matrix surface, and curing the antifouling paint in a uniform magnetic field to form a film so that the acicular filler is directionally arranged along the magnetic field direction, thereby obtaining the antifouling material with the directionally arranged acicular filler. The antifouling compound coating and microstructure antifouling are combined to reduce the consumption of the antifouling compounds, and the antifouling material has favorable static antifouling property. The preparation method is simple and easy to implement; and the product has the advantages of energy saving, environment friendliness and long antifouling period, and is suitable for large-area application.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of antifouling coatings, and in particular relates to a method for preparing an antifouling material with directional arrangement of needle-shaped fillers, in particular to an antifouling material with directional arrangement of needle-shaped fillers in a self-polishing resin under the action of an external magnetic field and its preparation method. Background technique: [0002] Marine fouling organisms will cause problems such as increased ship navigation resistance, pipeline blockage, reduced thermal conductivity of heat exchange equipment, and reduced aquaculture catches, causing serious harm and huge economic losses; marine antifouling technology is used to prevent marine pollution. The technology of fouling organisms attaching to the surface of marine structures, the main antifouling measure currently used is to apply antifouling coatings, including antifouling agent coatings and foulin...

AI Technical Summary

Problems solved by technology

[0003] The principle of the antifouling agent coating is to release the antifouling agent to kill or inhibit marine fouling organisms, thereby preventing it from fouling the surface of marine structures. A triphenyltin-containing antifouling coating disclosed in GB1457590, A kind of Cu disclosed by CN101531841 2 O hollow submicrospheres are applied to the preparation method of low-toxic marine antifouling coatings and a kind of antifouling coatings disclosed by CN101805546A for ships and marine facilities all contain antifouling agents such as tin and copper, due to organic tin, basic copper carbonate, etc. Accumulation in the marine environment will seriously affect the ecological environment, and its use has been gradually banned or restricted; developing new antifouling agents is one of the important ways to develop green antifouling technology, but the extract of Eupatorium adenophorum disclosed in CN101525508 is used as an antifouling The application of paint antifouling agent, the application of oleanolic acid disclosed in CN101485321 in the preparation of marine antifouling agent, and other organic compound antifouling agents, such as pyridine triphenylborane, 4,5-dichloro-2- n-Octyl-4-isothiazolin-3-one and N-cyclopropyl-N'-(1,1-dimethylethyl)-6-(methylthio)-1,3,5- Triazine-2,4-diamine has the problem that the antifouling effect is not ideal when used alone. It needs to be used in conjunction with cuprous oxide to have better antifouling performance, and it will still cause pollution when it accumulates in large quantities in harbors and other sea areas. Environmental pollution, therefore, reducing the amount of antifouling agent or adopting new antifouling technology that does not rely on antifouling agent is the focus of future development

[0004] Fouling-release antifouling coating is designed to make the marine fouling organisms not easy to adhere to the surface to achieve antifouling by designing special surface characteristics. US4910252 discloses a low surface energy coating made of room temperature curing silicone rubber. In antifouling paint and US6265515 disclosed a kind of silicon-fluorine resin low surface energy antifouling paint, low surface energy characteristic can prevent the attachment of marine organisms such as barnacles and mussels, but it has little effect on marine organisms such as diatoms, silicon After the algae attaches, it will further promote the attachment of other organisms, causing the antifouling coating to fail; CN102399487A discloses a scale-adjustable porous microstructure surface antifouling material, and CN102417792A discloses the preparation of an antifouling material with a cross-shaped regular microstructure on the surface Method and CN101691466A discloses a method for preparing antifouling material on the surface of a spherical protrusion microstructure, which can effectively reduce the attachment sites of fouling organisms and prevent marine organisms from adhering through the specially designed microstructure, but there are still two problems that need to be solved. Solution: First, the preparation method of etching and micro-phase separation on the surface of the microstructure is complicated, and it is difficult to realize large-scale application; Poor antifouling effect

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