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Fluorine-containing epoxy resin, black hydrophobic oleophobic composition prepared from resin and waterproof oleophobic gas-permeable film and structure

An epoxy resin, hydrophobic and oleophobic technology, used in epoxy resin coatings, biocide-containing paints, film/flake adhesives, etc. The effect of reducing the incidence of security incidents, improving utilization, and improving stability

Active Publication Date: 2018-09-18
SUZHOU SHIHUA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the sensor will be affected by the external environment and the temperature and air pressure changes inside the device, which will affect its working stability and shorten its service life

Method used

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  • Fluorine-containing epoxy resin, black hydrophobic oleophobic composition prepared from resin and waterproof oleophobic gas-permeable film and structure
  • Fluorine-containing epoxy resin, black hydrophobic oleophobic composition prepared from resin and waterproof oleophobic gas-permeable film and structure
  • Fluorine-containing epoxy resin, black hydrophobic oleophobic composition prepared from resin and waterproof oleophobic gas-permeable film and structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Table 1 Example 1 component formula

[0035]

[0036] Step 1. is 1: 2 by the mol ratio of liquid epoxy resin and 2-(perfluoroalkyl) ethanol, selects boron trifluoride as catalyst, and 2-(perfluoroalkyl) ethanol is at 80 o After C is melted, slowly add liquid epoxy resin dropwise, continue to react at 110-130°C for 1-3 hours, and obtain fluorine-containing epoxy resin I after cooling;

[0037] Step 2. After the fluorine-containing epoxy resin Ⅰ prepared in step 1 is completely dissolved in tetrahydrofuran solvent, add wetting and dispersing agent DISPERBYK-2001, after mixing completely, add carbon black #1000, continue stirring to disperse evenly, and obtain a mixed system ;

[0038] Step 3. Transfer the mixed system in step 2 to a pin-type horizontal sand mill and grind it until its fineness is less than or equal to 5 microns, and filter it with a 2500-mesh ultra-fine filter cloth to obtain black hydrophobic and oleophobic combination.

[0039] A black hydrophobic...

Embodiment 2

[0043] Table 2 Example 2 component formula

[0044]

[0045] Step polymerization 1. is 1: 2 by the mol ratio of liquid epoxy resin and N-methyl perfluorohexyl sulfonate amine, with N-methyl perfluorohexyl sulfonate amine at 69 o After melting between C, slowly add liquid epoxy resin dropwise, continue to react at 100-120°C for 2-4 hours, and obtain fluorine-containing epoxy resin II after cooling.

[0046] The rest of the steps are the same as in Example 1. The performance test results of the waterproof, oleophobic and breathable membrane are shown in Table 5.

Embodiment 3

[0048] Table 3 Example 3 component formula

[0049]

[0050] The steps are the same as in Example 1, and the performance test results of the waterproof, oleophobic and breathable membrane are shown in Table 5.

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Abstract

The invention discloses fluorine-containing epoxy resin, a black hydrophobic oleophobic composition prepared from resin and a waterproof oleophobic gas-permeable film and structure. The fluorine-containing epoxy resin is obtained by reacting liquid epoxy resin with perfluoroalkyl ethanol or perfluoroalkyl sulfonamide; and the black hydrophobic oleophobic composition prepared from the fluorine-containing epoxy resin comprises the following components: 3.2-10.0 wt% of the fluorine-containing epoxy resin, 88-95 wt% of tetrahydrofuran, 0.2-1.4 wt% of a wetting dispersant and 0.3-1.0 wt% of a blackpigment. The black hydrophobic oleophobic composition disclosed by the invention coats a microporous film to prepare the waterproof oleophobic gas-permeable film, and the waterproof oleophobic gas-permeable film has the functions of water resistance, oleophobicity and gas permeability; and the waterproof oleophobic gas-permeable structure prepared by combining the waterproof oleophobic gas-permeable film, a glue layer, a supporting film and a release film can be applied to openings of equipment having sensors to improve working stability of the sensors and prolong the service life of the sensors.

Description

technical field [0001] The invention relates to a fluorine-containing epoxy resin and a black hydrophobic and oil-repellent composition prepared therefrom. In addition, the present invention also relates to a waterproof, oleophobic and breathable film and structure prepared by using the black hydrophobic and oleophobic composition. Background technique [0002] Fluorine-containing materials are the materials with the most excellent comprehensive properties among polymer materials. They have outstanding heat resistance, chemical corrosion resistance, durability, weather resistance, solvent resistance, inactivity against various acids and alkalis, and low flammability. properties, low surface energy (that is, neither lipophilic nor hydrophilic), low moisture absorption and super oxidation resistance. The fluorine-containing materials currently reported in patents are mainly fluorine-containing polyurethanes and fluorine-containing acrylate polymers, such as fluorine-containin...

Claims

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Application Information

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IPC IPC(8): C08G59/14C09D163/00C09D5/16C09J7/29C09J7/35C09J7/50C08J7/04
CPCC08G59/1444C08G59/1483C08J2463/00C09D5/1662C09D163/00C09J2463/00C09J7/29C09J7/35C09J7/50C08J7/0427C09J2301/122C09J2301/16C09J2301/18C09J2301/304
Inventor 顾正青毕英慧计建荣
Owner SUZHOU SHIHUA NEW MATERIAL TECH