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Multifunctional low surface treatment epoxy thick build long-acting anticorrosion primer and preparation method thereof

A technology of low surface treatment and epoxy thick paste, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of low environmental protection performance of primers, achieve excellent anti-rust ability, improve adhesion and impact strength , the effect of excellent diffusion performance

Active Publication Date: 2020-05-05
西北永新涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-functional low surface treatment epoxy thick build long-acting anti-corrosion primer to solve the problem that the environmental protection performance of the existing primer is not high

Method used

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  • Multifunctional low surface treatment epoxy thick build long-acting anticorrosion primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Prepare component A:

[0039] Step 1. Add 2kg of tannic acid into a small pot, pour 2kg of absolute ethanol, and disperse at 200-300r / min for 1-2 minutes to fully activate the tannic acid;

[0040] Step 2. Add 12kg of bisphenol A low molecular weight 618 epoxy resin into the basket dispersion basin, add 0.6kg of A400 wetting and dispersing agent at a speed of 500-800r / min, and continue stirring for 2-4 minutes; Next, add 0.3kg VP031 wax, 8kg zinc phosphate, 13kg aluminum tripolyphosphate, 4kg activated tannic acid, 3kg polysilicon auxiliary agent MP-3 and 2kg propylene oxide butyl ether, stir thoroughly for 8-15min to obtain a paint pulp.

[0041] Step 3. The paint slurry is ground by a basket grinding method at a rotating speed of 500-800 r / min, and ground for 3-4 hours until the fineness is ≤60 µm.

[0042] Step 4. Add 8kg of bisphenol A type medium and high molecular weight 604 epoxy resin into the high stirring dispersion basin, add 3kg of butanol, 5kg of low vola...

Embodiment 2

[0048] Prepare component A:

[0049] Step 1. Add 3kg of tannic acid into a small pot, pour 3kg of absolute ethanol, and disperse at 200-300r / min for 1-2 minutes to fully activate the tannic acid;

[0050] Step 2. Add 10kg of bisphenol A low molecular weight 618 epoxy resin into the basket dispersion basin, add 0.6kg of wetting and dispersing agent A400S at a speed of 500-800r / min, and continue stirring for 2-4 minutes; Next, add 0.2kg VP031 wax, 12kg zinc phosphate, 14kg aluminum tripolyphosphate, 6kg activated tannic acid, 4kg polysilicon auxiliary agent MP-3 and 3kg aliphatic glycidyl ether, stir thoroughly for 8-15min to obtain paint paste .

[0051] Step 3. The paint slurry is ground by a basket grinding method at a rotating speed of 500-800 r / min, and ground for 3-4 hours until the fineness is ≤60 µm.

[0052] Step 4. Add 6kg of bisphenol A type medium and high molecular weight 609 epoxy resin into the high-stirring dispersion basin, add 2kg of butanol, 4kg of low volat...

Embodiment 3

[0058] Prepare component A:

[0059] Step 1. Add 2kg of tannic acid into a small pot, pour 2kg of absolute ethanol, and disperse at 200-300r / min for 1-2 minutes to fully activate the tannic acid;

[0060] Step 2. Add 15kg of bisphenol A low molecular weight 618 epoxy resin into the basket dispersion basin, add 0.4kg of wetting and dispersing agent AT204 at a speed of 500-800r / min, and continue stirring for 2-4 minutes; Next, add 0.3kg VP031 wax, 6kg zinc phosphate, 9kg aluminum tripolyphosphate, 4kg activated tannic acid, 2kg polysilicon auxiliary agent MP-3 and 1kg propylene oxide butyl ether, stir thoroughly for 8-15min to obtain a paint pulp.

[0061] Step 3. The paint slurry is ground by a basket grinding method at a rotating speed of 500-800 r / min, and ground for 3-4 hours until the fineness is ≤60 µm.

[0062] Step 4. Add 5kg of bisphenol A medium and high molecular weight 604 epoxy resin and 5kg of 609 epoxy resin into the high stirring dispersion basin respectively, ...

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Abstract

The invention discloses a multifunctional low-surface treatment epoxy thick slurry long-effect anticorrosive primer, and belongs to the field of chemical industry. The multifunctional low-surface treatment epoxy thick slurry long-effect anticorrosive primer is prepared from a component A and a component B, wherein a mixed system formed by high-molecular-weight epoxy resin and low-molecular-weightepoxy resin in a bisphenol A type has high low-temperature solid-containing performance, superior corrosion resistance, high adhesive force, flexibility and salt spray resistance. The multifunctionallow-surface treatment epoxy thick slurry long-effect anticorrosive primer integrates stability, permeability and transformation. According to the method, a basket type grinding-dispersing method and ahigh-speed stirring-dispersing method are combined for preparing the thick slurry primer, so that the production table time can be shortened, the production efficiency is increased, the production cost is saved, and the obtained product has high storage stability, and is free from the quality problems of lamination and precipitation.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a multifunctional low surface treatment epoxy thick paste long-acting anticorrosion primer and a preparation method thereof. Background technique [0002] In the total cost of steel coating, the cost of surface treatment accounts for about 42%-45%. At the same time, among the factors affecting the life of the coating film, surface treatment accounts for about 50%. This makes low surface treatment coatings become one of the hotspots of research at home and abroad. Although rusty coatings have appeared in my country since the 1970s, their functions are relatively single, and there is a lack of multifunctional coatings that integrate stability, penetration, and transformation. Compared with other resins, low-molecular-weight epoxy resin itself is brittle, and the paint film has poor flexibility and adhesion; while high-molecular-weight epoxy resin has a high viscosity o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/20C09D7/61C09D7/45C09D7/65C09D7/63C09D7/80
CPCC08K2003/2296C08L2205/025C08L2205/035C09D5/08C09D7/20C09D7/45C09D7/61C09D7/63C09D7/65C09D7/80C09D163/00C08L63/00C08L23/00C08L91/00C08K5/5435C08K13/02C08K3/36C08K3/22
Inventor 孙振红吉芹郭姗姗强富彬姚兆鹏李华明
Owner 西北永新涂料有限公司
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