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High-hydrophobicity fluorocarbon composition as well as preparation method and application thereof

A composition and hydrophobic technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., to achieve high hydrophobicity and good practical application value

Pending Publication Date: 2020-11-17
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors have found that fluorocarbon resins and fluorocarbon coatings are mostly used in coating industries such as steel structure anticorrosion coatings, building exterior wall coatings, aerospace paints, and high-weather-resistant decorative topcoats, and are rarely used in the field of electrical equipment insulation. to report

Method used

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Examples

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preparation example Construction

[0051] The second aspect of the present invention provides the preparation method of the above-mentioned highly hydrophobic fluorocarbon composition, the preparation method comprising: adding the dispersant to butyl acetate and stirring evenly, adding filler and inorganic flame retardant to it and dispersing , to obtain a filler dispersion;

[0052] Blending and grinding the filler dispersion with the fluorocarbon resin, and sieving the mixed solution to obtain coating component A;

[0053] Mix and stir the coating component A and the curing agent.

[0054] Wherein, the mass ratio of the dispersant to butyl acetate is 1:200-800, and the stirring treatment time of the dispersant and butyl acetate is 5-20 minutes;

[0055] In order to enhance the uniformity of dispersion, after adding reinforcing fillers and inorganic flame retardants, shear ultrasonic dispersion is used for dispersion, and the treatment time is 20-60 minutes;

[0056] Blending and grinding the filler dispersi...

Embodiment 1

[0069] A highly hydrophobic fluorocarbon composition with excellent tracking resistance and flame retardancy, consisting of the following components in parts by weight:

[0070] 60 parts of fluorocarbon resin;

[0071] 20 parts of modified gas-phase nano silicon dioxide, the particle size is 20nm;

[0072] 60 parts of aluminum hydroxide, the particle size is 20 μm;

[0073] 0.2 parts of dispersant;

[0074] 12 parts of curing agent.

[0075] The method of using the above-mentioned highly hydrophobic fluorocarbon composition is:

[0076] Add the dispersant to 150 parts of butyl acetate, stir for 10 minutes, add modified gas-phase nano-silica and aluminum hydroxide to it, and carry out shear ultrasonic dispersion for 30 minutes to obtain a filler dispersion. The filler dispersion was poured into a grinder, blended with the fluorocarbon resin and ground for 4 hours, and the resulting mixture was sieved through a 350-mesh screen to prepare the coating component A. Before use,...

Embodiment 2

[0079] A highly hydrophobic fluorocarbon composition with excellent tracking resistance and flame retardancy, consisting of the following components in parts by weight:

[0080] 60 parts of fluorocarbon resin;

[0081] 10 parts of modified gas-phase nano silicon dioxide, the particle size is 20nm;

[0082] 60 parts of aluminum hydroxide, the particle size is 20 μm;

[0083] Dispersant BYK163 0.5 parts;

[0084] Curing agent HDI trimer isocyanate 18 parts.

[0085] The method of using the above paint is:

[0086] Add the dispersant to 120 parts of butyl acetate, stir for 10 minutes, add modified gas-phase nano-silica and aluminum hydroxide to it, and carry out shear ultrasonic dispersion for 50 minutes to obtain a filler dispersion. The filler dispersion was poured into a grinder, mixed with the fluorocarbon resin and ground for 5 hours, and the resulting mixture was sieved through a 350-mesh screen to prepare the coating component A. Before use, component A and curing age...

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Abstract

The invention provides a high-hydrophobicity fluorocarbon composition as well as a preparation method and application thereof, and belongs to the technical field of polymer insulating materials. The high-hydrophobicity fluorocarbon composition is prepared from the following raw materials in parts by weight: 60 parts of fluorocarbon resin; 10 to 25 parts of a reinforcing filler; 50 to 100 parts ofan inorganic flame retardant; 0.2-1 part of a dispersing agent; 12-20 parts of curing agent. The composition can resist electric corrosion and high-temperature damage caused by the electric corrosion,has high hydrophobicity, excellent tracking resistance and flame retardance compared with common silicone rubber coating, and can expand the application field of fluorocarbon coating in the aspect ofelectrical equipment insulation, so that the high-hydrophobicity fluorocarbon composition has a good practical application value.

Description

technical field [0001] The invention belongs to the technical field of polymer insulating materials, and in particular relates to a highly hydrophobic fluorocarbon composition and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Compared with traditional inorganic insulating materials such as glass and ceramics, polymer insulating materials have gradually become an insulating material that has attracted much attention due to their light weight, low cost, good mechanical properties, and hydrophobic and antifouling properties. Polymer insulating materials inevitably bear the comprehensive effects of various factors such as temperature ...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D5/18C09D5/16C09D5/25C09D7/62
CPCC08K2003/2227C08K2201/011C08L2201/02C09D5/00C09D5/1687C09D5/18C09D127/12C08K9/00C08K3/36C08K3/22C08K3/34
Inventor 宗立君吴亚平李辛庚姜波王晓明米春旭李文静樊志彬郭凯赵洺哲王倩
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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