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A kind of fluorosilicone modified acrylic resin and its preparation method and application

An acrylic resin, fluorosilicon modification technology, applied in the direction of biocide-containing paints, coatings, anti-fouling / underwater coatings, etc. Cost and effect of reducing usage

Active Publication Date: 2022-05-24
INST OF CHEM ENG GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organosiloxane monomers mentioned in this scheme are methyltrimethoxysilane, methyltriethoxysilane, diphenyldimethoxysilane, vinyltrimethoxysilane, vinyltriethoxy One of silane, γ-methacryloxytrimethoxysilane and γ-methacryloxytriethoxysilane or the above ingredients are mixed in any proportion, and the organosiloxane chain segment is generally too short Lead to problems such as insufficient hydrophobic and oleophobic properties of the resin
[0009] At present, how to organically combine long-chain alkyl groups with hydrophobic and slippery functions, organic fluorine and silicone through molecular structure design, through the synergistic effect of the three, can significantly improve the hydrophobic, oleophobic, and anti-icing effects of acrylic resins. The impact resistance and self-healing function of acrylic resins are improved by acrylic monomers of ring structural units, and high-solid and low-viscosity acrylic resins are obtained through special initiators and preparation processes, which have not been reported yet.

Method used

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  • A kind of fluorosilicone modified acrylic resin and its preparation method and application
  • A kind of fluorosilicone modified acrylic resin and its preparation method and application
  • A kind of fluorosilicone modified acrylic resin and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A fluorosilicon modified acrylic resin is composed of the following raw materials by mass percentage: methyl methacrylate 10%, dicyclopentadienyl methacrylate 3%, hydroxyethyl methacrylate caprolactone 5%, methacrylic acid 5% Octadecyl 5%, trifluoroethyl methacrylate 10%, heptafluorodecyl methacrylate 5%, acrylate-based single-terminated silicone oil (Mn=4000) 2%, allyl double-terminated silicone oil ( Mn=3000) 10%, γ-methacryloyloxypropyltrimethoxysilane 0.5%, methacrylic acid 1%, 2-hydroxyethyl methacrylate 2%, 4-hydroxybutyl acrylate 3 %, glycidyl methacrylate 1%, trimethylolpropane trimethacrylate 1%, di-tert-amyl peroxide 1%, n-dodecyl mercaptan 0.5%, xylene 40%.

[0069] In this example, the fluorosilicon modified acrylic resin was prepared according to the following steps:

[0070] In a four-necked flask equipped with a stirrer, a condenser and a thermometer, 40 parts of xylene, 20 parts of acrylate-based single-terminated silicone oil (Mn=4000) and 2 parts of d...

Embodiment 2

[0073] A fluorosilicon modified acrylic resin is composed of the following raw materials by mass percentage: methyl methacrylate 15%, dicyclopentadienyl methacrylate 10%, hydroxyethyl methacrylate caprolactone 5%, methacrylic acid 5% Octadecyl 2%, tetrafluoropropyl methacrylate 4%, heptadecafluorodecyl acrylate 1%, acrylate-based mono-terminated silicone oil (Mn=2000) 5%, allyl double-terminated silicone oil (Mn= 10000) 8%, γ-methacryloyloxypropyltriethoxysilane 2.5%, methacrylic acid 0.5%, 2-hydroxyethyl methacrylate 3%, 4-hydroxybutyl acrylate 2% , glycidyl methacrylate 0.5%, trimethylolpropane trimethacrylate 2%, di-tert-butyl peroxide 1%, cyclohexyl mercaptan 0.3%, xylene 20%, methyl isobutyl ketone 18.2%.

[0074] In this example, the fluorosilicon modified acrylic resin was prepared according to the following steps:

[0075] In a four-necked flask equipped with a stirrer, a condenser and a thermometer, 38.2 parts of mixed solvent, 50 parts of acrylate-based mono-termin...

Embodiment 3

[0078] A fluorosilicon modified acrylic resin is composed of the following raw materials by mass percentage: 10% of methyl methacrylate, 8% of dicyclopentadienyl methacrylate, 4% of hydroxyethyl methacrylate caprolactone, methacrylic acid Octadecyl ester 3%, trifluoroethyl acrylate 5%, heptafluorodecyl methacrylate 3%, acrylate-based mono-terminated silicone oil (Mn=300) 10%, allyl double-terminated silicone oil (Mn= 2000) 2%, gamma-methacrylate oxypropyl methyldimethoxysilane 1%, methacrylic acid 2%, methacrylate-2-hydroxyethyl 4%, acrylate-4-hydroxybutyl 1% , glycidyl methacrylate 1.5%, trimethylolpropane trimethacrylate 1.5%, di-tert-amyl peroxide 2%, n-octane mercaptan 0.3%, propylene glycol methyl ether acetate 41.7%.

[0079] In this example, the fluorosilicon modified acrylic resin was prepared according to the following steps:

[0080]Add 41.7 parts of propylene glycol methyl ether acetate, 100 parts of acrylate-based double-terminated silicone oil (Mn=200) and 4 part...

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Abstract

The invention discloses a fluorosilicon modified acrylic resin, its preparation method and application. This fluorosilicone modified acrylic resin is made of the following components: methacrylate monomer, fluorine-containing acrylate monomer, acrylate-based silicone oil, allyl silicone oil, polymerization active silane coupling agent, methyl Acrylic acid, active cross-linking monomer containing hydroxyl group, glycidyl methacrylate, trimethylolpropane trimethacrylate, initiator, chain transfer agent, solvent; fluorine-containing acrylate monomer is composed of C2~C3 It is composed of short-chain fluorine-containing alkyl acrylate monomers and C10-C12 long-chain fluorine-containing alkyl acrylate monomers. The fluorine-silicon modified acrylic resin prepared by the invention has the characteristics of high viscosity and low viscosity, is convenient for construction and use, and reduces the generation of VOC. The coating prepared with this modified acrylic resin has the characteristics of high impact resistance self-healing function, anti-icing, low surface energy, hydrophobic and oleophobic, stain resistance, high and low temperature resistance, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a fluorosilicon modified acrylic resin and a preparation method and application thereof. Background technique [0002] Acrylic resin has the advantages of excellent weather resistance, gloss retention, corrosion resistance, adhesion, simple synthesis process and low price, and is widely used in automobiles, household appliances, electrical appliances, machinery, construction and other fields. However, affected by the characteristics of the acrylic polymer itself, its water resistance, solvent resistance, poor high and low temperature resistance, and high surface energy of the paint film have obvious shortcomings, which limit the use of acrylic resin in high-end functional coatings. For this reason, modified acrylic resins have developed rapidly in recent years, among which fluorosilicon modification is particularly prominent. [0003] Fluorine is the most electronegati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F290/06C08F220/14C08F220/40C08F220/20C08F220/18C08F220/24C08F230/08C08F220/06C08F220/32C08F222/14C09D175/04C09D5/16
CPCC08F290/068C09D175/04C09D5/1662C08F220/14C08F220/40C08F220/20C08F220/24C08F230/08C08F220/06
Inventor 余龙飞陈佳志麦裕良郑小珊李欢玲
Owner INST OF CHEM ENG GUANGDONG ACAD OF SCI
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