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Flame-retardant, antibacterial and transparent super-amphiphobic paint and preparation method and application thereof

A super-amphiphobic and coating technology, which is applied in fire-resistant coatings, anti-fouling/underwater coatings, coatings, etc., can solve problems such as complex methods, harsh reaction conditions, and single functions

Active Publication Date: 2019-09-27
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to develop a simple preparation method, mild reaction conditions, and applicable to many A multifunctional coating that can be mass-produced and can simultaneously combine flame retardancy, antibacterial properties, transparency and superamphiphobic is more meaningful for practical applications

Method used

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  • Flame-retardant, antibacterial and transparent super-amphiphobic paint and preparation method and application thereof
  • Flame-retardant, antibacterial and transparent super-amphiphobic paint and preparation method and application thereof
  • Flame-retardant, antibacterial and transparent super-amphiphobic paint and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Ultrasonic disperse 0.519g of silica nanoparticles into a mixed solution of 4g of water, 0.4g of absolute ethanol and 40g of cyclohexane, and then add 0.081g of dimethyltetradecyl[3-(trimethoxysilyl) Propyl] ammonium chloride, reacted for 28 hours, separated and washed to obtain silica nanoparticles modified with nitrogen-containing cationic silane coupling agent.

[0072] 0.5g of the prepared nitrogen-containing cationic silane coupling agent-modified silica nanoparticles, 0.5g of ammonium polyphosphate particles and 1.3g of perfluorodecyltriethoxysilane were stirred and dispersed into 10g of water, 157g In the mixed solution of ethanol and 30.7g chlorobenzene, after reacting for 6h, a flame-retardant and antibacterial transparent super-amphiphobic coating was obtained.

[0073] The ammonium polyphosphate particles used therein have an average size 15 microns larger than the average size of the silica nanoparticles.

Embodiment 2

[0075] Stir and disperse 0.08549g of zinc oxide nanoparticles into a mixed solution of 20.91g of anhydrous n-propanol and 24g of chloroform, then add 0.00451g of dimethyl octadecyl [3-(trimethoxysilyl) propyl] bromide ammonium chloride, reacted for 12 hours, and separated and washed to obtain zinc oxide nanoparticles modified with nitrogen-containing cationic silane coupling agent.

[0076] 30g of zinc oxide nanoparticles modified by the nitrogen-containing cationic silane coupling agent, 60g of polythiophenylphosphonic acid diphenylsulfone ester particles and 60g of perfluorodecyltrimethoxysilane were ultrasonically dispersed to 0.25 g water and 49.75 g of n-propanol in a mixed solution, reacted for 2 hours to obtain a flame-retardant antibacterial transparent super-amphiphobic coating.

[0077] The average size of the polythiophenyl phosphonate diphenyl sulfone ester particles used therein is 500 nm larger than the average size of the zinc oxide nanoparticles.

Embodiment 3

[0079] 5g of polyurea-formaldehyde nanoparticles were ultrasonically stirred and dispersed into a mixed solution of 1g of water, 20g of anhydrous glycerol and 15g of toluene, and then 4g of dimethyltetradecyl[3-(triethoxysilyl)propyl was added. ] ammonium bromide, reacted for 72h, separated and washed to obtain polyurea-formaldehyde nanoparticles modified with nitrogen-containing cationic silane coupling agent.

[0080] 0.1g of the prepared nitrogen-containing cationic silane coupling agent-modified polyurea-formaldehyde nanoparticles, 0.04g of double-spiro ring structure phosphate particles, and 0.1g of perfluorooctyltriethoxysilane were stirred and dispersed to 59.928g In the mixed solution of water, 139 g glycerol and 0.832 chloroform, the flame-retardant and antibacterial transparent super-amphiphobic coating was obtained after reacting for 96 hours.

[0081] The average size of the double-helical phosphate particles is 800 nanometers larger than the average size of the po...

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Abstract

The invention discloses flame-retardant, antibacterial and transparent super-amphiphobic paint and a preparation method and application thereof. The flame-retardant, antibacterial and transparent super-amphiphobic paint is prepared by the following steps: firstly preparing inorganic / organic nanoparticles modified by a nitrogen-containing positive ion silane coupling agent, and dispersing the inorganic / organic nanoparticles along with flame retardant particles and a fluorine-containing silane coupling agent in a solvent and reacting. By a spray-coating, brush-coating or dip-coating method, the paint is applied on the surface of a metallic base material, an inorganic base material or an organic polymer base material. The use amount of the coating obtained is less. It can be effectively ensured that characteristics such as color, texture, pores, air permeability, etc. of the surface of the base material are unchanged, and excellent and stable super-amphiphobic property, flame retardant property and antibacterial property can be obtained. Meanwhile, the preparation is simple, the raw materials are cheap and easily available, and no toxic organic solvent is used. The preparation condition is mild, and the preparation is carried out at normal temperature and in an ordinary state and is environmentally-friendly. The preparation cost is low. Thus, the method is suitable for large-scale production and is good for industrial application and promotion.

Description

technical field [0001] The invention belongs to the technical field of paint and its preparation method and application, and in particular relates to a flame-retardant and antibacterial transparent super-amphiphobic paint and its preparation method and application. Background technique [0002] Inspired by the special infiltration phenomenon of various biological surfaces in nature, such as the superhydrophobic self-cleaning phenomenon on the surface of lotus leaves, the rapid movement of water striders on the water surface, and the excellent water and oil repellency on the surface of collembola, people successfully prepared a A series of materials with special wettability, such as superhydrophilic, superoleophilic, superhydrophobic, superoleophobic, and superamphiphilic or superamphiphobic. Among them, the super-amphiphobic surface refers to the surface on which the static contact angle of water and oil is greater than 150° and the rolling angle is less than 10°, which can ...

Claims

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Application Information

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IPC IPC(8): C09D183/08C09D5/18C09D5/14C09D7/62
CPCC08G77/24C09D4/00C09D5/14C09D5/18C09D183/08C09D7/62C09D7/65
Inventor 王玉忠王芳宋飞李敬豫皮静
Owner SICHUAN UNIV
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