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Fluorine-containing nano-microsphere/fluorine-containing epoxy resin hybrid, preparation method and application thereof

An epoxy resin and nano-microsphere technology, applied in epoxy resin coatings, coatings and other directions, can solve the problems of high cost, weak adhesion, high requirements on reagents and equipment, etc., and achieve good scrub resistance and durability. Corrosive, practical effect

Active Publication Date: 2014-04-09
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment process of this method is cumbersome and requires high reagents and equipment, and the fluorine-containing microspheres need to be dispersed in a fluorine-containing solvent, and there are no adhesive groups on the surface, so the adhesion is not very strong.
[0007] Although the above-mentioned patents solve many problems in superamphiphobic aspects, there are still many problems in the process of large-scale production and implementation, such as complicated methods and high costs.

Method used

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  • Fluorine-containing nano-microsphere/fluorine-containing epoxy resin hybrid, preparation method and application thereof
  • Fluorine-containing nano-microsphere/fluorine-containing epoxy resin hybrid, preparation method and application thereof
  • Fluorine-containing nano-microsphere/fluorine-containing epoxy resin hybrid, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of a fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid:

[0046] (1) Disperse microspheres A in solvent B, sonicate (ultrasonic power 100W, temperature 35°C) for 0.5h, and then place in an oil bath at a temperature of 80°C with a stirring speed of 100rpm. , then add epoxy resin C and catalyst D dropwise to the above system (the drop rate is 0.5g / min), after the dropwise addition, keep the above temperature for reaction for 1 hour, remove the solvent B by vacuum distillation, Then place the above system in a vacuum drying oven at 100°C and bake for 0.5 hours to obtain a hybrid of microspheres and epoxy resin grafted with epoxy groups on the surface;

[0047] Wherein the mass ratio of microsphere A, solvent B, epoxy resin C and catalyst D is 1:10:2:0; described microsphere is silica microsphere, and its particle size is 50nm; Epoxy resin C Be polyglycidyl methacrylate, its molecular weight is 1000; Solvent B is dimethyl sulfoxide...

Embodiment 2

[0057] (1) Preparation of a fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid:

[0058] (1) Disperse microspheres A in solvent B, sonicate (ultrasonic power 500W, temperature 70°C) for 2 hours, and then place in an oil bath at a temperature of 120°C with a stirring speed of 500rpm, Add epoxy resin C and catalyst D dropwise to the above-mentioned system (the drop rate is 10g / min). The above system was placed in a vacuum oven at 150°C and baked for 2 hours to obtain a hybrid of microspheres with epoxy groups grafted on the surface and epoxy resin;

[0059] Wherein the mass ratio of microsphere A, solvent B, epoxy resin C and catalyst D is 1:100:20:0.0001; described microsphere is titanium dioxide microsphere, and its particle size is 1000nm; Epoxy resin C is phenolic Epoxy resin, its molecular weight is 1000; Solvent B is butanone; Catalyst D, and D1 is tetrabutylammonium fluoride;

[0060] (2) Dissolve the microspheres grafted with epoxy groups on th...

Embodiment 3

[0070] (1) Preparation of a fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid:

[0071](1) Disperse microspheres A in solvent B, ultrasonically treat (300W ultrasonic power, 40°C temperature) for 1 hour, and then place in an oil bath at 110°C for stirring. The reaction temperature is 100°C, and the stirring speed is Under the condition of 100rpm, epoxy resin C and catalyst D are added dropwise to the above system (the drop rate is 8g / min). Remove the solvent B, and then place the above system in a vacuum oven at 130°C and bake for 1.5 hours to obtain a hybrid of microspheres and epoxy resin grafted with epoxy groups on the surface;

[0072] Wherein the mass ratio of microspheres A, solvent B, epoxy resin C and catalyst D is 1:80:10:0.00001; the microspheres are ferric oxide microspheres with a particle size of 50-100nm; Resin C is polyglycidyl methacrylate, and its molecular weight is 80000; Solvent B is dimethylacetamide; Catalyst D, and D1 are benz...

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Abstract

The invention discloses a fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid, a preparation method and application thereof. The preparation method comprises the steps of: dispersing the microspheres in a solvent B, conducting ultrasonic treatment for 0.5-2h, under a temperature of 80-120DEG C and stirring, adding epoxy resin and a catalyst D, then carrying out heat preservation reaction for 1-5h, removing the solvent B, and conducting vacuum drying, thus obtaining a microsphere and epoxy resin hybrid with an epoxy group grafted on the surface; dissolving the microsphere and epoxy resin hybrid with an epoxy group grafted on the surface in a solvent E, and performing ultrasonic treatment for 2-5h, then adding a fluorine-containing compound, a dispersive compound and a catalyst D1 to react for 1-5h, thus obtaining the fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid. The epoxy group in the fluorine-containing nano-microsphere / fluorine-containing epoxy resin hybrid can realize firm combination between fluorine-containing microspheres and between the fluorine-containing microspheres and a base material through chemical bonds.

Description

technical field [0001] The invention belongs to the field of super amphiphobic materials, and in particular relates to a fluorine-containing nano microsphere / fluorine-containing epoxy resin hybrid body and a preparation method and application thereof. Background technique [0002] Surface wettability is one of the important characteristics of solid surfaces. The wettability can be measured by the contact angle of water on the surface. Usually, the surface with a water contact angle of more than 150° and a rolling angle of less than 10° is called a superhydrophobic surface. With a contact angle of more than 150° to oil, it can be considered as a super oleophobic surface. If the static contact angles of water and oil on a surface are both greater than 150° and the rolling angles are both less than 5°, the interface can be called a superamphiphobic interface. Superhydrophobic surfaces and superamphiphobic surfaces have a certain self-cleaning function, that is, surface polluta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/32C08F8/18C08G59/14C08K9/04C08K3/36C08K3/22C09D133/16C09D163/04C09D163/00C09D7/12
Inventor 胡继文邹海良刘国军林树东李妃苗磊罗洪盛
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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