Fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and preparation method and utilization method thereof

A technology of fluorinated epoxy and composite coatings, which is applied in the direction of epoxy resin coatings, anti-corrosion coatings, polyether coatings, etc., and can solve the problems of superhydrophobic surface resistance to hydraulic shock, wear resistance and corrosion resistance that are difficult to apply on a large scale , to achieve the effects of excellent superhydrophobic properties, excellent wear resistance, and excellent mechanical properties

Active Publication Date: 2016-08-24
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In a large number of known methods, the prepared superhydrophobic surface is difficult to be applied on a large scale due to the constraints of poor performance such as hydraulic shock resistance, wear resistance and corrosion resistance.

Method used

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  • Fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and preparation method and utilization method thereof
  • Fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and preparation method and utilization method thereof
  • Fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and preparation method and utilization method thereof

Examples

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Embodiment 1

[0044] An all-organic multi-fluorinated epoxy super-hydrophobic composite coating of the present invention, the super-hydrophobic composite coating includes a coating system and a curing agent.

[0045] The coating system includes 3g of E-51 epoxy resin, 10.5g of polytetrafluoroethylene microparticles, 0.3g of polyperfluoromethyl isopropyl ether and 35ml of acetone; the average particle size of polytetrafluoroethylene microparticles is 100nm.

[0046] The curing agent is prepared by fluorinating diethylenetriamine and perfluorobutyric acid, and the molar ratio of diethylenetriamine to perfluorobutyric acid is 1:1.

[0047] The mass ratio of E-51 epoxy resin to curing agent is 10:4.

[0048] A preparation method of the above-mentioned all-organic multiple fluorinated epoxy superhydrophobic composite coating of the present embodiment, including the preparation of the coating system and the preparation of the curing agent.

[0049] The preparation process of the coating system is ...

Embodiment 2

[0064] A kind of all-organic multiple fluorinated epoxy superhydrophobic composite coating of the present invention and its preparation method and use method are basically the same as Example 1, the only difference is: when in use, the substrate used is glass or A4 paper, epoxy resin Board, steel plate. The coating surface of the obtained superhydrophobic composite paint has a contact angle with water of 160° to 165°, and a rolling angle of less than 2°.

Embodiment 3

[0066] A kind of all-organic multiple fluorinated epoxy superhydrophobic composite coating of the present invention and its preparation method and using method are basically the same as Example 1, the only difference is that in the superhydrophobic composite coating, the polytetrafluoroethylene particles used are 4.5g . The contact angle between the coating surface of the obtained superhydrophobic composite coating and water is 150°-153°.

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Abstract

The invention discloses a fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and a preparation method and a utilization method thereof. The coating comprises a coating system and a curing agent; the coating system comprises epoxy resin, polytetrafluoroethylene particles, polyperfluoromethyl isopropyl ether and an organic solvent; the curing agent is prepared by reaction of diethylenetriamine and perfluorobutyric acid. The preparation method includes preparation of the coating system and preparation of the curing agent. The utilization method includes: dissolving the curing agent into a diluent, adding an obtained curing agent solution into the coating system, well mixing, coating to a required surface and curing. The fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating has advantages of excellent super-hydrophobic property, favorable abrasion resistance, water impact resistance, corrosion resistance, high adhesive power, wide application range and the like. The preparation method is simple and easy to implement and suitable for large-scale application.

Description

technical field [0001] The invention belongs to the field of coating preparation, and relates to a super-hydrophobic coating and its preparation and application method, in particular to an all-organic multiple fluorinated epoxy super-hydrophobic composite coating and its preparation method and application method. Background technique [0002] Due to its applicability in self-cleaning, anti-icing, oil-water separation and other fields, the superhydrophobic phenomenon with a contact angle greater than 150° and a rolling angle less than 10° has attracted widespread attention in recent years. And studies have shown that the preparation of superhydrophobic surfaces usually needs to meet two conditions: the use of low surface energy substances and the construction of micro-nano secondary structures on the surface of the material. [0003] At present, methods for preparing superhydrophobic surfaces include sol-gel method, chemical vapor deposition, phase separation, electrodepositi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D163/00C09D171/00C09D5/08C09D7/12
CPCC08L2205/03C09D5/08C09D7/63C09D127/18C08L63/00C08L71/00C08K5/20
Inventor 彭超义吴彬瑞曾竟成李为民杨孚标
Owner NAT UNIV OF DEFENSE TECH
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