Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating

A water-based epoxy coating and epoxy coating technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as hidden safety hazards and environmental problems of solvent-based container coatings, and achieve low human harm and excellent protective performance. , The effect of low VOC emission

Active Publication Date: 2013-01-16
COSCO KANSAI PAINT & CHEM TIANJIN +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Pollution environmental problems and flammabil

Method used

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  • Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating
  • Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating
  • Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating

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Experimental program
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Effect test

Embodiment Construction

[0034] The main agent and curing agent formula of container water-based epoxy paint in embodiment one to embodiment three are as shown in table 1:

[0035]

[0036]

[0037] Epoxy emulsion is the epoxy emulsion Waterpoxy1455 of German BASF company. The amine adduct is Waterpoxy751, an amine adduct of BASF, Germany. Propylene glycol butyl ether is a film-forming aid. Rutile type titanium dioxide JR-701 is used as pigment; 400 mesh precipitated barium sulfate is used as filler. EFKA 4560 is a wetting and dispersing agent, BYK-346 is a substrate wetting agent, and BYK-381 is a leveling agent. BYK-019 is defoamer 1, BYK-024 is defoamer 2. The anti-settling agent is BENTONE-EW; BYK-425 is the thickener; KATHON LXE is the preservative in the tank.

[0038] The preparation method of container water-based epoxy paint in embodiment one to embodiment three is as follows:

[0039] (1) Preparation of main ingredient: first add deionized water according to the formula amount, sl...

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Abstract

The invention discloses a waterborne epoxy coating for containers and a preparation method of the waterborne epoxy coating. The waterborne epoxy coating comprises a host and a curing agent according to a mass ratio of 2.3:1. The host comprises deionized water, anti-settling agents, amine adduct, wetting dispersants, first defoamers, pigment, packing, coalescing agents, second defoamers, base wetting agents, flatting agents and thickeners. The curing agent comprises epoxy emulsion, deionized water, second defoamers and in-can preservatives. The preparation method of the waterborne epoxy coating for containers includes steps of (1), preparation of the host; (2), preparation of the curing agent; and (3), blending the host with the curing agent according to the mass ratio of 2.3:1. The coating has low volatile organic content (smaller than 60g/L) and high environment-friendly property, the coating can be dried at a high speed (namely the surface drying time is lower than 20 minutes at the room temperature), and requirements of high production efficiency of a container production line can be met completely.

Description

technical field [0001] The invention relates to the field of paint chemical industry, in particular to a water-based epoxy paint for containers and a preparation method thereof. Background technique [0002] At present, the world's annual output of containers is 3.2 million TEUs, and the annual coating needs are about 300,000 tons, worth about 5 billion yuan. Container coatings used worldwide are basically solvent-based coatings. Solvent-based coatings are conventional varieties that have been widely used in container anti-corrosion construction for a long time. After repeated experiments and adjustments, their excellent construction performance and anti-corrosion performance have been verified in the process of container production and use. Its regular package is as follows: [0003] Outside the box Inside the box Solvent based epoxy zinc rich primer 30μm 30μm Solvent-based epoxy interior paint 50μm Solvent-based epoxy...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
Inventor 王瑞涛崔文柱杜景怡孙希鹏刘会成
Owner COSCO KANSAI PAINT & CHEM TIANJIN
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