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Monovinyl-terminated fluorine-containing prepolymer/epoxy (methyl) acrylate composite UV-cured paint, preparation and applications thereof

A technology for acrylate and curing coatings, which is applied in the field of polymer materials, and can solve the problems of reduced coating body performance, difficult migration of fluorine-containing groups, and poor compatibility

Active Publication Date: 2015-08-12
国科广化(南雄)新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the way of physical blending, the compatibility between organic fluoropolymer and epoxy coating is poor, phase separation occurs, the material becomes opaque, and the bulk performance of the coating is also reduced; while adding small molecule fluorine-containing reactive monomers, due to Short fluorine-containing chains are easy to be embedded, and fluorine-containing groups are difficult to migrate to the surface of the material. To achieve the desired modification effect, a large amount of fluorine-containing monomers needs to be added

Method used

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  • Monovinyl-terminated fluorine-containing prepolymer/epoxy (methyl) acrylate composite UV-cured paint, preparation and applications thereof
  • Monovinyl-terminated fluorine-containing prepolymer/epoxy (methyl) acrylate composite UV-cured paint, preparation and applications thereof
  • Monovinyl-terminated fluorine-containing prepolymer/epoxy (methyl) acrylate composite UV-cured paint, preparation and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] (1) Preparation of epoxy methacrylate resin: 100 parts by mass of bisphenol A type epoxy resin (epoxy value 0.01) is added in the reactor that reflux condenser, dropping funnel, thermometer and stirrer are housed, Heat and stir to 60°C, then add 2.5 parts by mass of tetrabutylammonium bromide, 0.5 parts by mass of hydroquinone and 20 parts by mass of methacrylic acid, raise the temperature to 130°C, and react for 2 hours to obtain epoxy methacrylate resin.

[0061] (2) Preparation of monovinyl-terminated fluorine-containing prepolymer: Add 20 parts by mass of hexafluorobutyl methacrylate and 40 parts by mass of dioxane into a container, heat up to 85°C, add 2-mercaptoethanol 1 parts by mass, 0.6 parts by mass of azobisisobutyronitrile, stirred and reacted for 7 hours to obtain a fluorine-containing prepolymer solution with terminated hydroxyl groups; the temperature was cooled to 0°C in an ice bath, and 1.3 parts by mass of triethylamine and 1.2 parts by mass of methacr...

Embodiment 2

[0064] (1) Preparation of epoxy acrylate resin: get 100 mass parts of bisphenol S type epoxy resin (epoxy value 0.51) and add in the reactor equipped with reflux condenser, dropping funnel, thermometer and stirrer, heat and stir to 85°C, then add 3 parts by mass of tetrabutylammonium bromide, 0.05 parts by mass of hydroquinone, and 100 parts by mass of acrylic acid, raise the temperature to 125°C, and react for 6.5 hours to obtain an epoxy acrylate resin.

[0065] (2) Preparation of monovinyl-terminated fluorine-containing prepolymer: Add 20 parts by mass of trifluoroethyl methacrylate and 40 parts by mass of butanone into a container, heat up to 78°C, and add 4 parts by mass of 2-mercaptoethanol , 0.8 parts by mass of azobisisoheptanonitrile, stirred and reacted for 6 hours to obtain a fluorine-containing prepolymer solution with terminal hydroxyl groups; the temperature was cooled to 0°C in an ice bath, and 5 parts by mass of triethylamine and 4.4 parts by mass of methacryloy...

Embodiment 3

[0068] (1) Preparation of epoxy methacrylate resin: get 100 mass parts of epoxidized novolac resin (epoxy value 0.50, Wuxi Resin Factory, model F51) and add reflux condenser, dropping funnel, thermometer and stirring In the reactor of the reactor, heat and stir to 90°C, then add 0.05 parts by mass of tetrabutylammonium bromide, 3 parts by mass of hydroquinone, and 0.1 parts by mass of methacrylic acid, raise the temperature to 110°C, and react for 1 hour to obtain Epoxy methacrylate resin.

[0069](2) Preparation of monovinyl-terminated fluorine-containing prepolymer: Add 40 parts by mass of dodecafluoroheptyl methacrylate and 40 parts by mass of ethylene glycol dimethyl ether in a container, heat up to 85°C, add 2- 0.6 parts by mass of mercaptoethanol, 0.1 part by mass of azobisisobutyronitrile, stirred for 8.5 hours to obtain a fluorine-containing prepolymer solution with terminal hydroxyl groups; cooled to 0°C in an ice bath, 1 part by mass of triethylamine, 1 part by mass ...

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Abstract

The invention discloses a monovinyl-terminated fluorine-containing prepolymer / epoxy (methyl) acrylate composite UV-cured paint, preparation and applications thereof, and belongs to the field of polymer materials. The composite UV-cured paint comprises the following components in parts by weight: 0.01 to 50 parts of monovinyl terminated fluorine-containing prepolymer, 100 parts of epoxy (methyl) acrylate resin, 2 to 20 parts of active diluting monomers, 0.5 to 8 parts of photoinitiator, 0.5 to 5 parts of dispersant, and 0.1 to 4 parts of antifoaming agent. In the composite UV-cured paint, the monovinyl-terminated fluorine-containing prepolymer and epoxy (methyl) acrylate are taken as the main resins, and at the same time, active diluting monomers, dispersant, and antifoaming agent are added to prepare the paint, which has the advantages of low surface energy, alkali / acid resistant property, and good transparency and can be applied to the fields such as electronic encapsulation, construction paint, metal paint, and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a monovinyl-terminated fluorine-containing prepolymer / epoxy (meth)acrylate composite UV curing coating and its preparation and application. Background technique [0002] UV curing epoxy (meth)acrylic resin coatings are widely used in the fields of electronic packaging, ink printing, architectural coatings and the like because of their good mechanical properties, high transparency, and low price. However, epoxy (meth)acrylic resin coatings have problems such as water resistance and poor acid and alkali resistance, especially because epoxy acrylic resins have high surface tension, and the prepared epoxy resin coating surface has higher surface energy. , thus limiting its application in the field of superhydrophobic self-cleaning coatings. [0003] Fluoropolymers have excellent hydrophobic and oleophobic properties, antifouling properties, chemical stability, and heat r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/16C09D163/10C09D7/12C08F220/22C08G59/17
Inventor 刘伟区谭建权
Owner 国科广化(南雄)新材料研究院有限公司
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