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Water epoxy resin paint and its making process

A water-based epoxy resin, epoxy resin technology, applied in the direction of epoxy resin coating, coating, latex paint, etc., can solve the problems of poor resin miscibility, odor, short construction period, etc., and achieve chemical corrosion resistance Excellent, smooth appearance of the paint film and long service life

Inactive Publication Date: 2006-05-17
上海市涂料研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to judge whether the "phase inversion" process has reached a complete end with this method, so improper handling will also affect the stability of the emulsion
[0004] In addition, although aliphatic polyamines, which are commonly used as curing agents for waterborne epoxy resin coatings, have the advantages of fast curing speed and low viscosity, they have short construction periods, odor, strong irritation, moisture absorption, and poor compatibility with resins. , easy to cause paint film shrinkage, orange peel, whitening and other disadvantages
Use polyamide as curing agent, the price is higher, and the performance of the paint film is not significantly improved, and the curing speed is relatively slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Component A formula:

[0034] weight%

[0035] E-51 epoxy resin 40

[0036] 501 reactive diluent 28

[0037] Emulsifier 10

[0038] Auxiliary I 10

[0039] Auxiliary II 5

[0040] Deionized water 15

[0041] The emulsifier is the condensation product of fatty acid glyceride and ethylene oxide, the auxiliary agent I is an acrylic acid thickener, and the auxiliary agent II is an ether alcohol co-solvent. The preparation method is as follows: put E-51 epoxy resin, reactive diluent, and emulsifier into the reaction kettle, stir at a high speed of 1400 rpm to disperse evenly, add additive II, and heat up to 80°C while continuing to stir. Add 40 deionized water dropwise, finish adding within 0.5h, stir at a constant speed for 0.5h, add additive I, stir for another 0.5h, stabilize, cool for about 35min, and discharge.

[0042] Component B formula:

[0043] weight%

[0044] E-51 epoxy resin 30.57

[0045]...

Embodiment 2

[0071] The formula of the first and second components is the same as in Example 1, wherein the epoxy resin of the first component is changed to E-44 and E-22 at a ratio of 1:1, and the auxiliary agent I is glyceryl stearate, and the auxiliary agent II is changed to Toluene and methyl ethyl ketone are used together at 1:1; the epoxy resin of component B is also changed to E-44 and E-22 at 1:1, triethylenetetramine is changed to hexamethylenediamine, and m-xylylenediamine is changed to For 1,4-diaminocyclohexylamine. The preparation process of these two components is also the same as in Example 1. Use these two components to prepare color paint, the formula (unit: kg) is as follows:

[0072] Component A: Component A 50.00

[0073] Component B: Component B 9.40

[0074] Mica iron oxide 40.60

[0075] Precipitated barium sulfate 12.50

[0076] Talc 6.25

[0077] Iron Black 6.25

[0078] Deionized water 25.00

[0079] Paint match...

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PUM

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Abstract

The present invention discloses the composition and compounding process of one kind of water epoxy resin paint and features that the paint consists of two components, including the component A with chemically modified water epoxy resin as base material and the component B as curing agent with chemically modified water polybasic amine as base material. The paint features the epoxy resin emulsion with high storage stability, long service life, good brushing performance and obvious use terminal, and the coating with excellent water resisting and corrosion resisting performance.

Description

technical field [0001] The invention relates to an environmentally friendly anticorrosion coating and a manufacturing method thereof, in particular to a water-based epoxy resin-based anticorrosion coating and a manufacturing method thereof. Background technique [0002] Traditional epoxy resin coatings are solvent-based, which are characterized by good adhesion, corrosion resistance, and wear resistance. However, during the preparation and construction of such coatings, a large amount of solvents will volatilize, which not only pollutes the environment, but also endangers the environment. The health of the operator. [0003] For this reason, people have developed environment-friendly water-based epoxy resin coatings, which usually consist of two components, A and B. The first component is an epoxy resin emulsion, and the second component is a water-based curing agent. Since the epoxy resin itself is insoluble in water, it cannot be directly emulsified by adding water. Usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/02
Inventor 孙凌
Owner 上海市涂料研究所有限公司
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