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Epoxy zinc-rich primer and preparation method thereof

A technology of epoxy zinc-rich primer and epoxy resin, applied in epoxy resin coatings, coatings, anti-corrosion coatings and other directions, can solve the problems of cumbersome preparation process, poor other performance, poor anti-rust performance, etc., and achieve the operation steps Simple, excellent chemical resistance, good adhesion

Inactive Publication Date: 2021-01-22
无锡福斯特涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an epoxy zinc-rich primer and a preparation method thereof, aiming at solving the problem of poor anti-rust performance of the existing epoxy zinc-rich primer in the background technology, poor other performance, high cost, and cumbersome preparation process question

Method used

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  • Epoxy zinc-rich primer and preparation method thereof

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[0020] The invention provides a technical solution: an epoxy zinc-rich primer and a preparation method thereof, including: a formula and a preparation method of an epoxy zinc-rich primer, the formula of the epoxy zinc-rich primer includes the following mass percentage Components:

[0021] Component A: epoxy resin 12-16%, dispersant 0.3-0.5%, barium petroleum sulfonate 3-6%, zinc powder 50-60%, composite iron-titanium powder 15-20%, sericite 5-15% , organic bentonite 0.8-1%, mixed solvent 20%, curing agent 0.5-1%, defoamer 0.5-1%;

[0022] Component B: epoxy accelerator 1-2%, mixed solvent 75%, polyamide resin 20-28%, xylene 12-16%.

[0023] In the present invention, the formulation of the epoxy zinc-rich primer is divided into two components, which are prepared separately, which most improves the efficiency of preparation. In the component selection process of mass percentage in component A, preferably, epoxy resin 13-14%, dispersant 0.35-0.4%, petroleum barium sulfonate 4-5...

Embodiment 1

[0038] The formula for selecting epoxy zinc-rich primer includes the following components by mass percentage:

[0039] Component A: 12% epoxy resin, 0.3% dispersant, 3% barium petroleum sulfonate, 50% zinc powder, 15% composite iron-titanium powder, 5% sericite, 0.8% organic bentonite, 20% mixed solvent, solidified Agent 0.5%, defoamer 0.5%;

[0040] Component B: 1% epoxy accelerator, 75% mixed solvent, 20% polyamide resin, 12% xylene.

[0041] The steps of the preparation method of described epoxy zinc-rich primer are:

[0042] Step 1. Preparation of component A: Dissolve the epoxy resin completely into a solution with a mass volume ratio of 60% by mixing solvents, then add dispersant, organic bentonite and barium petroleum sulfonate, stir with a mixer for a certain period of time, and then slowly Add zinc powder, composite iron-titanium powder and sericite, use a high-speed disperser to disperse for a certain period of time, add the remaining solvent, and mix well;

[004...

Embodiment 2

[0045] The formula for selecting epoxy zinc-rich primer includes the following components by mass percentage:

[0046] Component A: 14% epoxy resin, 0.4% dispersant, 4% barium petroleum sulfonate, 55% zinc powder, 18% composite iron-titanium powder, 10% sericite, 0.9% organic bentonite, 20% mixed solvent, solidified Agent 0.8%, defoamer 0.8%;

[0047]Component B: 1.5% epoxy accelerator, 75% mixed solvent, 25% polyamide resin, 14% xylene.

[0048] The steps of the preparation method of described epoxy zinc-rich primer are:

[0049] Step 1. Preparation of component A: Dissolve the epoxy resin completely into a solution with a mass volume ratio of 60% by mixing solvents, then add dispersant, organic bentonite and barium petroleum sulfonate, stir with a mixer for a certain period of time, and then slowly Add zinc powder, composite iron-titanium powder and sericite, use a high-speed disperser to disperse for a certain period of time, add the remaining solvent, and mix well;

[0...

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Abstract

The invention is suitable for the technical field of anticorrosive coatings, and provides an epoxy zinc-rich primer and a preparation method thereof. The formula of the epoxy zinc-rich primer comprises the following components by mass: a component A: 12-16% of epoxy resin, 0.3-0.5% of a dispersant, 3-6% of barium petroleum sulfonate, 50-60% of zinc powder, 15-20% of composite ferrotitanium powder,5-15% of sericite, 0.8-1% of organic bentonite, 20% of a mixed solvent, 0.5-1% of a curing agent and 0.5-1% of a defoaming agent; and the component B comprises the following components in percentageby weight: 1-2% of epoxy accelerator, 75% of mixed solvent, 20-28% of polyamide resin and 12-16% of xylene. The ratio range of the component A to the component B is that the volume ratio of the component A to the component B is 4: 1. The epoxy zinc-rich primer has the advantages of being high in drying speed, good in adhesive force, excellent in chemical resistance, good in salt fog resistance andwater resistance and the like, and the preparation method of the epoxy zinc-rich primer is simple in operation step and high in preparation efficiency.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion coatings, in particular to an epoxy zinc-rich primer and a preparation method thereof. Background technique [0002] Metal corrosion is a very serious problem faced by modern people, and this problem covers almost all fields of social production. Due to corrosion, a large amount of hard-won useful materials become waste, resulting in weakened protection, equipment failure, consumption of resources and huge economic losses, and indirectly caused problems such as environmental pollution. For a long time, people have used many technologies to protect metals and prevent corrosion. One of the most effective methods is to coat the metal surface with an anti-corrosion coating to isolate the corrosive medium from the metal substrate. [0003] At present, epoxy zinc-rich primer is one of the most important metal anti-corrosion coatings. Since zinc is more active than iron, it is easy to lose electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/61C08G59/44
CPCC08G59/44C08K2003/0893C09D5/106C09D163/00C09D7/61C08K3/08C08K3/34C08K3/346C08K13/02
Inventor 郭建军
Owner 无锡福斯特涂料有限公司
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