Aqueous single-component nano modified self-crosslinked corrosion-resistant primer

A nano-modified, anti-corrosion primer technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of matrix resin continuity damage, adverse effects of coating structure, easy to break, etc., to achieve good dispersion stability, excellent protection effect , the effect of avoiding contact between
CN110003757AActive Publication Date: 2019-07-12广东绿色大地化工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广东绿色大地化工有限公司
Publication Date
2019-07-12

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Abstract

The invention belongs to the field of coatings and in particular relates to an aqueous single-component nano modified self-crosslinked corrosion-resistant primer which comprises the following components in parts by weight: 80-100 parts of a self-crosslinked epoxy-acrylic emulsion, 10-20 parts of zinc coordinated modified nano silicon dioxide microspheres, 0.1-1 part of a defoaming agent, 0.1-1 part of a leveling agent, 2-5 parts of filming aids and 1-3 parts of a neutralizer. In the primer system provided by the invention, the zinc coordinated modified nano silicon dioxide microspheres are prepared by grafting mono-(6-ethanediamine-6-deoxide)-beta-cyclodextrin on the surfaces of silicon dioxide microspheres, so that the steric hindrance among microspheres can be increased, microsphere contact is avoided, good dispersion stability can be achieved even when no dispersant is used, good dispersion is beneficial to formation of a dense protection layer, external water or vapor can be isolated, and an excellent protection effect can be achieved; as ethanediamine on mono-(6-ethanediamine-6-deoxide)-beta-cyclodextrin molecules form a zinc coordinated compounded, electrochemical corrosion resistance is achieved, and the corrosion resistance can be greatly improved.
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Description

technical field

[0001] The invention belongs to the field of coatings, in particular to a water-based single-component nano-modified self-crosslinking anti-corrosion primer. Background technique

[0002] Metal components are mostly made of carbon steel, stainless steel and other materials. Metal corrosion has brought huge economic losses to human beings. At present, the annual loss caused by metal corrosion accounts for about 5% of the world's gross product. In order to prevent and slow down metal corrosion, many anti-corrosion methods have been developed successively, among which the protection of anti-corrosion materials is the most convenient and economical. General anti-corrosion materials, such as chlorinated rubber, epoxy miracic iron and epoxy coatings, etc., only have a shielding protection effect, and solvent-based coatings will produce VOC (volatile organic compound) emissions after coating, polluting the environment, Harmful to human health. According to data, t...

Claims

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