Amphiphilic crosslinkable fluorosilicon resin, water-borne coating and super-amphiphobic coating prepared through water-borne coating

A fluorosilicone resin and water-based coating technology, applied in coating, paper coating, fiber raw material treatment, etc., can solve problems such as unfavorable construction workers' health, expensive raw material sources, environmental hazards, etc.

Active Publication Date: 2013-11-27
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

[0003] But for now, the current super-amphiphobic coatings still have the following disadvantages: First, the process of constructing super-hydrophobic or super-amphiphobic coatings is complicated, generally requires multiple steps, and the source of raw materials used is relatively expensive
Second, the constructed super-amphiphobic coating has no good mechanical properties, mainly because the super-amphiphobic coating has not been cross-linked with a strong cross-linking substance.
As a result, the durability of the super-amphiphobic effect is not obvious
Third, the application area is narrow, generally

Method used

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  • Amphiphilic crosslinkable fluorosilicon resin, water-borne coating and super-amphiphobic coating prepared through water-borne coating
  • Amphiphilic crosslinkable fluorosilicon resin, water-borne coating and super-amphiphobic coating prepared through water-borne coating
  • Amphiphilic crosslinkable fluorosilicon resin, water-borne coating and super-amphiphobic coating prepared through water-borne coating

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

[0047] (1) Preparation method of amphiphilic crosslinkable fluorosilicone resin: mix hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, and hydrophilic substance E in a solvent Into the reaction kettle, pass inert gas, then keep the stirring speed at 100rpm / min, raise the temperature to 60 degrees Celsius, add the catalyst, keep stirring for 5 hours, and then precipitate the reactants in n-hexane to obtain Amphiphilic cross-linkable fluorosilicone resin. The mass ratio of hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, hydrophilic substance E, catalyst and solvent is: 1:0.5:0.5:0.1:0.8:0.00001 :1;

[0048] The structural formula of the hydrogen-containing organosilicon A is:

[0049] Where p=0, q=10;

[0050] The epoxy-containing substance B is glycidyl methacrylate (GMA);

[0051] The fluorine-containing monomer C is 3-(perfluoro-5-met...

Example Embodiment

[0062] Example 2

[0063] (1) Preparation method of amphiphilic crosslinkable fluorosilicone resin: mix hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, and hydrophilic substance E in a solvent Add to the reactor, pass inert gas, then keep the stirring speed at 1000rpm / min, raise the temperature to 140 degrees Celsius, add the catalyst, keep stirring for 10 hours, and then precipitate the reactants into methanol to obtain two Affinity cross-linkable fluorosilicone resin. Among them, the mass ratio of hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, hydrophilic substance E, catalyst G and solvent F is: 1:20:50:2:100 : 0.0001: 100;

[0064] The structural formula of the hydrogen-containing organosilicon A is:

[0065] Where p=100, q=5000;

[0066] The epoxy-containing substance B is allyl glycidyl ether (AGE);

[0067] The fluorine-containing monomer C is ...

Example Embodiment

[0078] Example 3

[0079] (1) Amphiphilic cross-linkable fluorosilicone resin 3 is a mixture of hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, and hydrophilic substance E in a solvent. Add inert gas into the reaction kettle, then keep the stirring speed at 300rpm / min, raise the temperature to 100°C, add the catalyst, keep stirring for 20 hours, and then precipitate the reactants into n-hexane to obtain the amphiphile Cross-linkable fluorosilicone resin. The mass ratio of hydrogen-containing silicone A, epoxy-containing substance B, fluorine-containing substance C, modified silica D, hydrophilic substance E, catalyst and solvent is 1:10:10:1:1:1:0.00005 : 50;

[0080] The structural formula of the hydrogen-containing organosilicon A is:

[0081] Where p=20 and q=3000;

[0082] The epoxy-containing substance B is polyglycidyl methacrylate (PGMA) with alkyne-containing terminal, and its structural formula is as follow...

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Abstract

The invention belongs to the field of super-amphiphobic materials, and discloses amphiphilic crosslinkable fluorosilicon resin, a water-borne coating and a super-amphiphobic coating prepared through the water-based paint. The amphiphilic crosslinkable fluorosilicon resin is prepared by the means that hydrogen containing organic silicon A, the epoxy containing substance B, the fluorine containing substance C, modified silicon dioxide D and the hydrotropic substance E are mixed into a solvent, the mixture is added into a reaction kettle, inert gas is bubbled into the reaction kettle, the temperature is increased to 60-140 DEG C under the stirring condition, then the catalyst F is added, stirring is performed for 5-24 hours, and the reactant is precipitated into normal hexane or methyl alcohol; the amphiphilic crosslinkable fluorosilicon resin coating is dissolved in a aqueous-organic solvent, water is dropwise added into the maxture, so that the amphiphilic crosslinkable fluorosilicon resin coating is obtained; curing agent is added into the amphiphilic crosslinkable fluorosilicon resin water-borne coating, the mixture is stirred uniformly, then a base material is soaked into the amphiphilic crosslinkable fluorosilicon resin coating, or the amphiphilic crosslinkable fluorosilicon resin coating is sprayed on the surface of the base material, and drying operation is performed, so that the super-amphiphobic coating is obtained.

Description

technical field [0001] The invention belongs to the field of super-amphiphobic materials, and in particular relates to an amphiphilic cross-linkable fluorosilicone resin, a water-based coating and a super-amphiphobic coating prepared therefrom. Background technique [0002] As far as the current literature reports are concerned, most of the methods for constructing superamphiphobic materials are relatively complicated. With the development of super-amphiphobic materials, the process of preparing super-amphiphobic materials is increasingly pursuing simplification. Only by simplifying the process steps and reducing the cost of raw materials and processes can the industrialization of super amphiphobic materials be further advanced. [0003] But for now, the current super-amphiphobic coatings still have the following disadvantages: First, the process of constructing super-hydrophobic or super-amphiphobic coatings is complicated, generally requires multiple steps, and the source...

Claims

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Application Information

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IPC IPC(8): C08F283/12C08F220/28C08F220/34C08F220/18C08F220/22C08G81/02C09D151/08C09D187/00D21H19/20D21H19/24D06M15/643D06M15/657
Inventor 胡继文邹海良林树东罗洪盛李妃刘国军胡美龙
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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