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Preparation method of water-repellent hybrid fluorine-containing resin coating

A fluororesin, water repellent technology, used in coatings and other directions

Active Publication Date: 2014-07-23
德施普(辽宁)新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although there are many research reports on the preparation and application of silsesquioxanes in the literature, the preparation of water-repellent hybrid resin coating films using aminoalkyl silsesquioxane oligomers and epoxy-based fluororesins as raw materials patent literature has not yet been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Synthesis of epoxy-based fluorostyrene-acrylic resin

[0031] Stir and mix 60g of n-butyl acrylate, 30g of styrene and 5g of allyl glycidyl ether weighed in sequence to obtain mixture A, then add 0.5g of benzoyl peroxide (BPO) to mixture A and stir to disperse Mixture B is obtained evenly, and mixture B is recorded as component (I).

[0032] Another 5g structure is CH 2 =CRCOOCH 2 CH 2 R f1 , R=H, R f1 =(CF 2 ) a CF 3 , a=4-12 perfluoroalkyl ethyl acrylate and 10g methyl isobutyl ketone (MIBK) were stirred and mixed to form a fluorine-containing monomer solution, which was recorded as component (II).

[0033]Add 9.6 g of component (I) and 56.6 g of MIBK to a three-necked flask equipped with a thermometer, a condenser, and a stirrer, then heat up to 80° C. for 5 minutes under nitrogen ventilation and stirring, and then transfer to the three-necked flask. Add the remaining component (I) dropwise to the bottle at a constant speed, control the rate of addition ...

Embodiment 2

[0039] (1) Synthesis of epoxy-based fluorostyrene-acrylic resin

[0040] Stir and mix 35g of n-butyl acrylate, 40g of styrene and 15g of allyl glycidyl ether weighed in sequence to obtain mixture A, then add 0.6g of benzoyl peroxide (BPO) to mixture A and stir to disperse Mixture B is obtained evenly, and mixture B is recorded as component (I).

[0041] Another 10 g of dodecafluoroheptyl methacrylate and 30 g of methyl isoamyl ketone were stirred and mixed to form a fluorine-containing monomer solution, which was designated as component (II).

[0042] Add 27.1 g of component (I) and 70 g of methyl isoamyl ketone to a three-necked flask equipped with a thermometer, a condenser, and a stirrer, and then heat up to 90° C. for 10 minutes under nitrogen ventilation and stirring. Then in the three-necked bottle, add the remaining component (I) dropwise at a constant speed, control the rate of addition to make the remaining component (I) dropwise in 1.5h, then continue to drop the co...

Embodiment 3

[0048] (1) Synthesis of epoxy-based fluorostyrene-acrylic resin

[0049] 10g of methyl methacrylate, 20g of 2-ethylhexyl acrylate, 35g of styrene and 20g of allyl glycidyl ether weighed in sequence were stirred and mixed to obtain mixture A, and then 1.0g of dimethicone was added to mixture A. Azobisisobutyronitrile (AIBN) was uniformly dispersed to obtain mixture B, and mixture B was recorded as component (I).

[0050] Another 15g of dodecafluoroheptyl methacrylate and 15g of methyl isobutyl ketone-toluene (the mass ratio of methyl isobutyl ketone to toluene is 1:1) mixed solvent was stirred and mixed to form a fluorine-containing monomer solution , denoted as component (II).

[0051] Add 15g component (I) and 66.8g methyl isobutyl ketone-toluene (the mass ratio of methyl isobutyl ketone and toluene is 1:1) in the three-necked flask that device has thermometer, condenser, stirrer Mix the solvents, then heat up to 85°C for 8 minutes under nitrogen and stirring, then add the ...

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Abstract

The invention discloses a preparation method of a water-repellent hybrid fluorine-containing resin coating. The preparation method comprises the following steps: first, under the action of an initiator, carrying out solution copolymerization on perfluoroalkyl acrylate, other acrylates, styrene and a reactive styrene epoxy compound to synthesize an epoxy fluorostyrene-acrylic resin intermediate; second, carrying out hydrolytic polycondensation on aminoalkyl trialkoxy silane in an alcohol solution to prepare an aminoalkyl silsesquioxane oligomer in a topological structure; and third, hybridizing and cross-linking the epoxy fluorostyrene-acrylic resin by the aminoalkyl silsesquioxane oligomer, co-mixing with a nano-paint to prepare a coating; and leveling, surface-drying, roasting and curing to obtain the resin coating with a good water-repellent effect.

Description

technical field [0001] The invention belongs to the field of fine chemical industry, and relates to a method for preparing a water-repellent hybrid fluorine-containing resin coating film constructed on the basis of aminoalkyl silsesquioxane and epoxy-based fluorostyrene-acrylic resin. Background technique [0002] Organic fluorine resin with fluorinated polyacrylate as the main component has low surface energy and excellent water and oil repellency. It is used for the treatment of glass, metal or fiber substrates. It can not only improve the surface properties and feel of the substrates, but also It can endow the substrate with ideal water and oil repellency and self-cleaning function, so it is widely used in the field of functional coatings and coatings. [0003] Multi-component copolymerization of fluoroacrylates with other acrylates and functional monomers can prepare organic fluorine resins with good water and oil repellency, as disclosed in US5705276, CN1222929, CN10150...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D125/14C09D7/12C08F220/18C08F212/08C08F216/14C08F220/22
Inventor 安秋凤潘家炎张艳丽
Owner 德施普(辽宁)新材料技术有限公司
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