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A kind of low-friction self-lubricating acrylic resin and its preparation method and application, low-friction self-lubricating marine antifouling coating

An acrylic resin, marine antifouling technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of low substrate adhesion, poor durability, easy to fall off, etc.

Active Publication Date: 2021-10-12
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the maturity of this technical solution is low, and it does not meet the basic requirements for engineering applications. The reason is that lubricants (such as silicone oil, etc.) exist in a large amount in the matrix resin system in a free form, resulting in weak mechanical strength of the material and low bonding force with the substrate. , it is easy to fall off during service, so the durability is poor, and it does not have long-lasting and stable self-lubricating properties
[0004] So far, there are no reports of self-lubricating materials that do not contain cuprous oxide, have a low coefficient of friction, and can be well bonded to the substrate

Method used

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  • A kind of low-friction self-lubricating acrylic resin and its preparation method and application, low-friction self-lubricating marine antifouling coating
  • A kind of low-friction self-lubricating acrylic resin and its preparation method and application, low-friction self-lubricating marine antifouling coating
  • A kind of low-friction self-lubricating acrylic resin and its preparation method and application, low-friction self-lubricating marine antifouling coating

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Experimental program
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preparation example Construction

[0065] In the present invention, the preparation method of the polymerizable silicone oil monomer preferably includes the following steps:

[0066] Mixing hydroxypropyl silicone oil, isocyanoethyl methacrylate and dibutyltin dilaurate, and carrying out a catalytic reaction to obtain the polymerizable silicone oil monomer.

[0067] In the present invention, the molecular weight of the hydroxypropyl silicone oil is preferably 1500-2500, more preferably 1600-2400. In the present invention, the mixing of the hydroxypropyl silicone oil, isocyanoethyl methacrylate and dibutyltin dilaurate is preferably after the hydroxypropyl silicone oil and dibutyltin dilaurate are mixed, and then added to the resulting mixing system Add isocyanoethyl methacrylate. Before the hydroxypropyl silicone oil is mixed, the present invention preferably performs drying treatment on the hydroxypropyl silicone oil; the temperature of the drying treatment is preferably 120° C.; the time is preferably 4 hours...

Embodiment 1

[0132] Preparation of polymerizable silicone oil monomer: Dry hydroxypropyl silicone oil with a molecular weight of 2000 at 120°C for 4 hours under vacuum and decompression, and mix 0.1mol of dried hydroxypropyl silicone oil with 0.3g of dibutyltin dilaurate , the temperature was raised to 40°C, and 0.1mol of isocyanoethyl methacrylate was dropped into the reaction system at a rate of 2 drops / s at 40°C with a stirring rate of 600rpm, and the catalytic reaction was carried out after the dropwise addition was completed 4h, obtain polymerizable silicone oil monomer;

[0133] The preparation of unsaturated organic acid divalent metal ion salt monomer: the Zn(OH) of 8.2g 2 Mix with 15g ethylene glycol methyl ether to obtain the ethylene glycol methyl ether solution of zinc hydroxide; 6g acrylic acid, 10.2g benzoic acid and 20g ethylene glycol methyl ether are mixed uniformly to obtain a drop solution; Under the condition of 300rpm, the dropping liquid is added dropwise in the ethy...

Embodiment 2

[0136] Prepare polymerizable silicone oil monomer and unsaturated organic acid divalent metal ion salt monomer according to the method of Example 1;

[0137] Mix 10g ethylene glycol methyl ether, 10g xylene, 8g propylene glycol methyl ether acetate, 10g methyl methacrylate, 5g butyl acrylate, 10g ethyl acrylate and 6g polymerizable silicone oil monomer to obtain A liquid; 3-[N,N-dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonic acid inner salt, 15g ethylene glycol methyl ether , 10g propylene glycol methyl ether acetate, 8g xylene, 75g zinc acrylate monomer solution, 6g polymerizable silicone oil monomer, 10g 2-(perfluorooctyl) ethyl methacrylate, 25g methyl methacrylate , 4g of butyl acrylate, 11g of ethyl acrylate and 2g of azobisisobutyronitrile were stirred and mixed evenly to obtain liquid B; at 90°C and a stirring rate of 300rpm, liquid B was added dropwise to A at a rate of 1 drop / s. After the dropwise addition, keep warm for 3 hours to carry out t...

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Abstract

The invention belongs to the technical field of lubricating functional materials, in particular to a low-friction self-lubricating acrylic resin, a preparation method and application thereof, and a low-friction self-lubricating marine antifouling coating. The structure of the low-friction self-lubricating acrylic resin provided by the present invention is grafted and introduced with silicone oil groups to construct a low-friction self-lubricating interface, which significantly improves the mechanical properties of the low-friction self-lubricating acrylic resin and is beneficial to improving the stability of the self-lubricating interface; Grafting introduces unsaturated organic acid divalent metal ion salt structure and sulfonic acid inner salt, which is beneficial to enhance the static antifouling performance of low-friction self-lubricating acrylic resin and prolong the antifouling effect; fluorine-containing acrylate structure and silicone oil structure are introduced together The main chain of the low-friction self-lubricating acrylic resin is beneficial to reduce the surface energy of the paint coating containing the low-friction self-lubricating acrylic resin and enhance the drag reduction performance.

Description

technical field [0001] The invention belongs to the technical field of lubricating functional materials, in particular to a low-friction self-lubricating acrylic resin, a preparation method and application thereof, and a low-friction self-lubricating marine antifouling coating. Background technique [0002] Marine biofouling is extremely harmful. It not only increases the weight and frictional resistance of the hull, increases fuel consumption, but also accelerates the corrosion of the hull, seriously affecting the service performance of marine equipment. Applying marine antifouling paint is the most effective means to solve the problem of non-destructive marine life. Since January 1, 2008, since the self-polishing antifouling paint containing organotin (TBT) was banned, the research and development of non-toxic antifouling paint has received extensive attention. At present, the tin-free self-polishing antifouling coatings widely used in the market are bactericidal antifoul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/12C08F220/06C08F220/24C08F220/38C08F220/14C08F220/18C09D151/08C09D5/16C09D7/61
CPCC08F283/124C08K2003/3009C09D5/1625C09D5/1675C09D5/1687C09D151/085C08F220/06C08F220/24C08F220/387C08F220/14C08F220/1804C08F220/1802C08K13/06C08K5/36C08K5/21C08K3/30C08K9/00C08K3/346C08K5/39
Inventor 周峰裴小维杨武芳张建斌吴杨
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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