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A kind of super amphiphobic coating material for catalyst and its preparation method and application

A coating material, super-amphiphobic technology, applied in the direction of coating, device for coating liquid on the surface, special surface, etc., can solve the problem of short service life, and achieve the effect of avoiding surface pollution, stable structure, and avoiding agglomeration

Active Publication Date: 2021-05-04
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is how to overcome the defect that the service life of the existing superamphiphobic nano-coating is too small or easily lost and the service life is too short, and then provide a kind of inorganic particles with uniform distribution and high content, Preparation method and application of super amphiphobic coating on catalyst surface with long-lasting performance

Method used

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  • A kind of super amphiphobic coating material for catalyst and its preparation method and application
  • A kind of super amphiphobic coating material for catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The super-amphiphobic coating material provided in this embodiment is prepared through the following steps:

[0029] S1. Apply 20g of polytetrafluoroethylene and 3g of fluorosilane coupling agent to form a base coating with a thickness of 60 μm by spraying;

[0030] S2. Heat 1g of nano-silica to 330°C, and then spray it on the surface of the polytetrafluoroethylene base layer; after the polytetrafluoroethylene is cooled, raise the overall temperature of the obtained composite coating to 328°C, keep it warm, and turn on the ultrasonic treatment at the same time 10min, turn off the ultrasound, cool to room temperature;

[0031] S3. Continue to repeat step S2 for the coating obtained in S2 for 50 times to obtain a super-amphiphobic coating material.

Embodiment 2

[0033] The super-amphiphobic coating material provided in this embodiment is prepared through the following steps:

[0034] S1. Apply 20g of fluorine-modified polystyrene and 2.5g of silane coupling agent to form a base coating with a thickness of 100 μm by spraying;

[0035] S2. Heat 1g of nano-titanium dioxide to 170°C, and then spray it on the surface of the fluorine-modified polystyrene base layer; after the obtained coating is cooled, raise the overall temperature of the obtained composite coating to 170°C, keep it warm, and turn on the ultrasonic treatment for 10 minutes at the same time , turn off the ultrasound, and cool to room temperature;

[0036] S3. Continue to repeat step S2 for the coating obtained in S2 for 50 times to obtain a super-amphiphobic coating material.

Embodiment 3

[0038] The super-amphiphobic coating material provided in this embodiment is prepared through the following steps:

[0039] S1. Coating 10g of polytetrafluoroethylene, 10g of polyvinylidene fluoride and 2.8g of silane coupling agent into a base coating with a thickness of 30 μm by spraying;

[0040] S2. Heat 1g of nano-alumina to 330°C, and then spray it on the surface of the polytetrafluoroethylene and polyvinylidene fluoride-based layers; after the obtained coating is cooled, the overall temperature of the obtained composite coating is raised to 330°C, heat preservation, and at the same time Turn on the ultrasonic treatment for 10 minutes, turn off the ultrasonic, and cool to room temperature;

[0041] S3. Continue to repeat step S2 for the coating obtained in S2 for 50 times to obtain a super-amphiphobic coating material.

[0042] Pure water and glycerin were used to measure the static contact angle of the superamphiphobic coatings obtained in Examples 1-3, and the results...

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Abstract

The invention relates to the technical field of preparation of super-amphiphobic materials, and specifically provides a super-amphiphobic coating for catalysts and its preparation method and application. The super-amphiphobic coating contains uniformly distributed inorganic Nanoparticles, the high content of inorganic nanoparticles makes the surface of the coating have a strong degree of roughness, so that the prepared coating exhibits excellent super-amphiphobic properties. The invention also provides a preparation method of the super-amphiphobic coating. By spraying low-concentration particles for many times, all the nanoparticles are in a good dispersion state when sprayed onto the coating body. By heating the nanoparticles to the viscous fluidization temperature of the coating body, they are "embedded" and fixed on the coating body when they come into contact with the coating body, and then the whole coating is heated by cooling first. And ultrasonic treatment, so that the nanoparticles enter the coating body at the relative position of maintaining the dispersed state, thereby avoiding the agglomeration of the nanoparticles.

Description

technical field [0001] The invention belongs to the technical field of super-amphiphobic materials, and in particular relates to a super-amphiphobic coating material used for catalysts and a preparation method and application thereof. Background technique [0002] Superamphiphobic (also known as "everything-hating") materials have the advantages of anti-fouling, anti-fog, low adhesion, and self-cleaning, so they are in great demand in many fields of daily life and industrial production. However, super-amphiphobic materials are still in the research and development stage, and practical industrial products are rare. Even the coating products that claim to be able to "hate everything" on the market are still unstable and have a short service life due to the existence of super-amphiphobic materials. difficult to promote. In view of this, more and more researches are devoted to the development of superamphiphobic materials. [0003] If the mechanical properties of the super-amp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/02B05D3/02B05D3/04B05D3/10B05D5/00B05D7/24C09D7/61C09D125/06C09D127/16C09D127/18
CPCB05D1/02B05D3/0254B05D3/0426B05D3/108B05D5/00B05D7/24B05D2401/32C08K2003/2227C08K2003/2241C08K2201/011C09D125/06C09D127/16C09D127/18C08L27/16C08K3/22C08K3/36C08L27/18
Inventor 林科赵文涛郭立新
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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