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Acrylic acid hydrogenated abietinol ester modified fluorocarbon resin and preparation method thereof

A technology of hydrogenated rosin alcohol acrylate and hydrogenated rosin alcohol is applied in the direction of polyurea/polyurethane coatings, coatings, anti-corrosion coatings, etc. The effect of improving hydrophobicity

Pending Publication Date: 2021-12-31
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can improve the hardness, wear resistance and corrosion resistance of fluorocarbon coatings to a certain extent, the performance improvement of fluorocarbon coatings is also limited by the limitation of the amount of modified substances added.

Method used

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  • Acrylic acid hydrogenated abietinol ester modified fluorocarbon resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Step 1: dissolving hydrogenated abietyl alcohol in dichloromethane to prepare a solution with a mass concentration of 65%;

[0070] Step 2: Add triethylamine accounting for 32% of the mass of hydrogenated abietyl alcohol and 0.2% p-hydroxyanisole to the above hydrogenated abietyl alcohol solution, and after mixing evenly, slowly add 28% of the mass of hydrogenated abietyl alcohol at 45°C % of acryloyl chloride, after the dropwise addition, reflux for 6 hours to complete the reaction, separate and remove the precipitate, wash with deionized water to neutrality, remove the solvent by vacuum extraction, and obtain hydrogenated abietyl alcohol acrylate;

[0071] Step 3: to 20% by mass percentage of hydrogenated abietyl alcohol acrylate, add 30% by mass of ethyl acetate / toluene mixed solvent with a volume ratio of 2:1, 30% by mass of formaldehyde dodecafluoroheptyl acrylate, 10% by mass of hydroxybutyl acrylate, 8.5% by mass of methacrylic acid, 1% by mass of dibenzoyl perox...

Embodiment 2

[0075] Step 1: Dissolving hydrogenated abietyl alcohol in a tetrahydrofuran / trichloroethylene mixed solvent with a volume ratio of 4:1 to prepare a solution with a mass concentration of 50%;

[0076] Step 2: Add N,N-dimethylformamide and 1% 2,5-di-tert-butylhydroquinone accounting for 23% of the mass of hydrogenated abietyl alcohol to the above-mentioned hydrogenated abietyl alcohol solution, mix well, and At 60°C, slowly add acryloyl chloride accounting for 28% of the mass of hydrogenated abietyl alcohol. After the dropwise addition, reflux for 3 hours to complete the reaction, separate and remove the precipitate, wash with deionized water until neutral, and vacuum extract to remove the solvent. Obtain hydrogenated abietyl alcohol ester of acrylate;

[0077] Step 3: To 15% by mass percentage of hydrogenated abietyl alcohol acrylate, add 20% by mass of tetrahydrofuran / butyl acetate mixed solvent with a volume ratio of 1:2, 30% by mass of formazan Hexafluorobutyl acrylate, 15%...

Embodiment 3

[0082] Step 1: dissolving hydrogenated abietyl alcohol in a butyl acetate / petroleum ether mixed solvent with a volume ratio of 2:1 to prepare a solution with a mass concentration of 80%;

[0083] Step 2: Add 13% N,N-dimethylacetamide, 16% triethylamine, 0.5% p-hydroxyanisole, 0.5% 2- After mixing tert-butylhydroquinone evenly, slowly add methacryloyl chloride accounting for 33% of the mass of hydrogenated abietyl alcohol at 35°C, after the dropwise addition, reflux for 5 hours to complete the reaction, separate and remove the precipitate, And after washing with deionized water to neutrality, the solvent is removed by vacuum extraction to obtain hydrogenated abietyl alcohol acrylate;

[0084] Step 3: Add butyl acetate / toluene / tetrahydrofuran mixed solvent with a mass percentage of 15% and a volume ratio of 1:1:1 to the hydrogenated abietyl alcohol acrylate with a mass percentage of 20%, and the mass percentage 10% hexafluorobutyl acrylate, 10% by mass of hexafluorobutyl methac...

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Abstract

The invention discloses an acrylic acid hydrogenated abietinol ester modified fluorocarbon resin, the molecular structure of which takes a carbon chain as a main chain structure, and a side group connected with a main chain carbon atom is composed of one or more of a hydrogenated abietinol ester group, a fluoroalkyl ester group, a hydroxyl group or an alkyl hydroxyl group, and / or a hydrogen atom, an alkyl group, an alkoxy group, a carboxyl group and an ester group; from the perspective of the molecular structure, the chemical structure of the fluorocarbon resin is designed and optimized, a large-volume rigid group is introduced into the molecular structure, the novel fluorocarbon resin is synthesized, the hydrophobicity and hardness of the fluorocarbon resin are further improved, the comprehensive performance of the fluorocarbon coating can be essentially improved, and the application of the fluorocarbon coating in the field of marine heavy corrosion prevention is further expanded.

Description

technical field [0001] The disclosure of the invention relates to the technical field of modified fluorocarbon resins, in particular to a fluorocarbon resin modified by hydrogenated abietyl acrylate and a preparation method thereof. Background technique [0002] Fluorocarbon anti-corrosion coatings have excellent waterproof and oleophobic effects, as well as excellent aging resistance and corrosion resistance, and are widely used in the anti-corrosion of various steel structures and concrete structures. However, in the face of various complex environmental factors such as heavy corrosion of the marine environment, mechanical impact of waves, sun exposure, humidity, and salt erosion, the adhesion, hardness, and anti-fouling and self-cleaning properties of fluorocarbon anti-corrosion coatings are still slightly insufficient. Life is difficult to meet the actual requirements, [0003] At present, the existing fluorocarbon coating modification methods are mainly through physica...

Claims

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Application Information

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IPC IPC(8): C08F220/24C08F220/18C08F220/20C08F220/06C08F218/00C08G18/62C09D175/04C09D5/08
CPCC08F220/24C08F220/1811C08G18/6229C09D175/04C09D5/08C08G2150/90C08F220/20C08F220/06C08F218/24C08F220/1804
Inventor 齐文雷福厚陆春戚丁文韩东杨林
Owner GUANGXI UNIV FOR NATITIES
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