Method for preparing epoxy novolac nanometer anticorrosive paint

An anti-corrosion coating, epoxy phenolic technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of low curing shrinkage, slow curing reaction, low construction efficiency, etc. The effect of penetration and quick construction

Active Publication Date: 2016-01-06
陈曦
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, epoxy has the largest market share, and its film-forming substance is mainly epoxy resin, which has good adhesion to the metal surface, low curing shrinkage, high coating strength and strong corrosion resistance after curing. , but its biggest disadvantage is high brittleness, slow curing reaction and low construction efficiency

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  • Method for preparing epoxy novolac nanometer anticorrosive paint
  • Method for preparing epoxy novolac nanometer anticorrosive paint
  • Method for preparing epoxy novolac nanometer anticorrosive paint

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Embodiment Construction

[0029] The present invention will be described in further detail below in combination with specific embodiments.

[0030] The preparation method of a kind of epoxy phenolic nano anticorrosion coating of the present embodiment, comprises the steps:

[0031] Step 1: Prepare Component A:

[0032] ① Weigh the raw materials of component A according to the formula: 8% epoxy resin, 16% phenolic resin, 18% mixed solvent, 1.2% nano particles, 0.3% coupling agent KH-5500.3%, 6% zinc phosphate, 18% talcum powder, Organic bentonite 9%, precipitated barium sulfate 18%, defoamer 2.3%, leveling agent 1.6% and surfactant Triton X-100 1.6%;

[0033] ②Use a muffle furnace to calcinate nanoparticles at 600°C for 3 hours, add them to a three-necked flask after cooling, and disperse them with absolute ethanol to form a nanoparticle suspension with a mass fraction of 4.8%; stir for 10 minutes, and then add the modified coupling agent dropwise KH-550, raise the temperature to 130°C to modify the s...

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Abstract

The invention discloses a method for preparing epoxy novolac nanometer anticorrosive paint. The epoxy novolac nanometer anticorrosive paint is prepared from a first component and a second component, wherein the first component comprises, by mass, 8-10% of epoxy resin, 16-20% of phenolic resin, 15-20% of mixed solvent, 1-2% of nano-particles, 0.2-0.5% of coupling agent, 5-8% of zinc phosphate, 40-45% of filler and 1.5-3% of auxiliary, and the second component comprises, by mass, 45-55% of Versamine I-70 type curing agent, and 45-55% of mixed solvent. The first component and the second component are evenly mixed according to the mass ratio of 10:4-5 to prepare the epoxy novolac nanometer anticorrosive paint. By the adoption of the novel nano-modification components, intermolecular gaps and vacancy of paint coatings can be reduced, the paint coatings can be bonded more tightly, and the corrosion resistance of the paint coatings is effectively improved.

Description

technical field [0001] The invention relates to a preparation method of an anti-corrosion coating, in particular to a preparation method of an epoxy phenolic nano anti-corrosion coating. Background technique [0002] In recent years, my country's petroleum, chemical, and new energy fields have developed rapidly. As the most widely used substrate, steel is often damaged by corrosive media such as dissolved oxygen and hydrogen sulfide during use. At present, the anti-corrosion method commonly used at home and abroad is to apply heavy-duty anti-corrosion coatings on the inner and outer walls of the equipment, so as to effectively improve the service life of metal equipment and reduce the use cost of equipment. According to the survey, the production and sales of heavy-duty anti-corrosion coatings in my country rank first in the world, and the main types are epoxy, zinc-rich, polyurethane, chlorinated rubber, and acrylic. Among them, epoxy has the largest market share, and its ...

Claims

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Application Information

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IPC IPC(8): C09D161/06C09D163/00C09D5/08C09D7/12
Inventor 陈曦王瑶邓晓彬闫渊
Owner 陈曦
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