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Hydrophobic oil-resistant flame-retardant anticorrosive multifunctional coating and preparation method

A multi-functional coating and hydrophobic technology, applied in anti-corrosion coatings, coatings, fire-resistant coatings, etc., can solve the problems of poor comprehensive performance and unsatisfactory processing performance, and achieve improved flame retardancy, excellent hydrophobicity, simple process and no pollution Effect

Inactive Publication Date: 2019-06-07
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current superhydrophobic and oil-resistant materials have the problems of poor comprehensive performance and processing performance that cannot meet the current processing methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Prepare 15g of polydichlorophosphazene according to the method of bulk or solution polymerization, then drop 43.13g of sodium octafluoropentoxide and 18.59g of sodium trifluoroethoxide into the tetrahydrofuran solution of polydichlorophosphazene, react at room temperature for 24 hours, Then, the polymer was precipitated from the reaction mixture with petroleum ether and xylene, and vacuum-dried to obtain a fluorinated polyphosphazene substituted with 50% octafluoropentyloxy and 50% trifluoroethoxy. Add 30 g of the prepared fluorinated polyphosphazene elastomer into tetrahydrofuran, and the mass volume ratio of fluorinated phosphazene to solvent is 1 g: 20 ml. Add 4g of carbon black, 2.5g of attapulgite, 2.8g of zinc methacrylate, 0.35g of stearic acid, and 1g of KH550 into the system in sequence. Stir fully for 12 hours to fully disperse these fillers in the solution to form a relatively uniform turbid solution.

[0032] The above-mentioned fluorinated polyphosphazene ...

Embodiment 2

[0035] Prepare 15g polydichlorophosphazene according to the method of bulk or solution polymerization, then drop 26.47g sodium p-fluorophenolate and 11.2g sodium hexafluoroisopropoxide into the tetrahydrofuran solution of polydichlorophosphazene, react at room temperature for 24 hours, Then, the polymer was precipitated from the reaction mixture with petroleum ether, and vacuum-dried to obtain a fluorine-containing polyphosphazene substituted with 70% 4-fluorophenoxy and 30% trifluoroethoxy. Add 30 g of the prepared fluorinated polyphosphazene elastomer to dioxane, and the mass volume ratio of fluorinated phosphazene to solvent is 1 g: 30 ml. Add 2.5g of fumed silica, 2g of attapulgite, 1.6g of zinc oxide, 0.8g of stearic acid, and 1g of KH560 into the system in sequence. Stir fully for 12 hours to fully disperse these fillers in the solution to form a relatively uniform turbid solution.

[0036] Add 200ml of a mixed solution of petroleum ether and n-heptane to the above fluori...

Embodiment 3

[0039] Prepare 15g of polydichlorophosphazene with a molecular weight of 4000 according to bulk or solution polymerization, then drop 21.84g of sodium 3-chloro-1-propoxide and 11.31g of sodium 4-chloro-1-butoxide into polyphosphorus dichloride Nitrile tetrahydrofuran solution, react at room temperature for 24 hours, filter the solution after the reaction, then add 200ml of 15% concentration of hydrofluoric acid to the system, react for 12h, and then use deionized water to precipitate the polymer from the reaction mixture and vacuum-dried to obtain a fluorinated polyphosphazene elastomer. Add 30 g of the prepared fluorinated polyphosphazene elastomer into pyridine, and the mass volume ratio of the fluorinated phosphazene to the solvent is 1 g: 25 ml. Add 5g of fumed silica, 2.5g of attapulgite, 0.7g of zinc oxide, 0.04g of stearic acid, and 0.5g of NDZ101 into the system in sequence. Stir fully for 12 hours to fully disperse these fillers in the solution to form a relatively u...

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Abstract

The invention relates to a hydrophobic oil-resistant flame-retardant anticorrosive multifunctional coating and a preparation method and belongs to the field of material surface modification. Specifically, fluorinated polyphosphazene elastomers of different fluorine element contents are prepared, and the comprehensive performance of the coating material can be greatly improved by using low-temperature resistance, structural diversity, good solubility and workability of the fluorinated polyphosphazene elastomers and further adding functional fillers such as a reinforcer, an activating agent anda vulcanizer into a fluorinated polyphosphazene system; and the obtained coating material can be applicable to a variety of surface forming methods of paster, spray-coating, electrostatic jetting, sol-gel, phase separation and the like, hydrophobic oil-resistant anticorrosive coatings of surfaces of metallic and macromolecular materials can be prepared by using the methods, and meanwhile, the flame retardance of the macromolecular materials is improved. According to the hydrophobic oil-resistant flame-retardant anticorrosive multifunctional coating and the preparation method, the process is simple and pollution-free, the fluorine content and functionality of the material can be adjusted through lateral group selection during synthesis, and thus, the good interface and hydrophobic and oil-resistant integrated high performance of the coating are achieved.

Description

technical field [0001] The invention belongs to the field of surface modification of materials, and in particular relates to a surface coating modification technology mainly aimed at metal or organic polymer materials. performance. Background technique [0002] With the rapid development of the economy, the use of metal materials and polymer materials in the chemical industry has greatly increased. The aging, corrosion and lack of functionality of materials will greatly reduce the service life of materials, and also endanger safety and cause a lot of economic losses. For example, the flammability of organic polymer materials and the intolerance of thermal-oxidative aging, chemical and electrochemical corrosion of metal materials are common material failure modes, so seeking effective material protection methods is an important research direction. [0003] There are many methods for anti-aging and anti-corrosion of materials, mainly to improve the structure of the material i...

Claims

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Application Information

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IPC IPC(8): C09D185/02C09D5/18C09D5/08
Inventor 吴战鹏崔佳俊子张双琨苗振威刘伟武德珍
Owner BEIJING UNIV OF CHEM TECH
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