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Zinc-ene anti-corrosion powder coating and preparation method thereof

A powder coating and zinc-ene technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of large amount of graphene added, expensive preparation of epoxy zinc-rich powder coatings, and no indication of graphene effects.

Active Publication Date: 2022-03-08
THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the total amount of nano-scale aluminum powder, zinc powder and composite filler is more than 40%, the amount of graphene is 1-3%, and the composite filler is mainly composed of clay, iron slag, nano-jade powder and rare earth powder. Various components are prepared through complex processes such as high-temperature calcination and ball milling, and the preparation cost of the epoxy zinc-rich powder coating is still expensive; at the same time, problems such as low coating adhesion (level 2) and poor impact toughness (50kg·cm) have not been resolved.
The amount of graphene added in the patent is relatively large, and the full text does not give any relevant limited information, nor does it indicate the role of graphene in it

Method used

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  • Zinc-ene anti-corrosion powder coating and preparation method thereof
  • Zinc-ene anti-corrosion powder coating and preparation method thereof
  • Zinc-ene anti-corrosion powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 625g of epoxy resin, 48g of modified dicyandiamide, 24g of additives, 250g of zinc powder, 50g of filler and 3g of graphene are formulated into a masterbatch, melted and extruded, tableted and cooled, crushed and sieved through a 150-mesh sieve to obtain a powder-like powder , After electrostatic spraying, bake at 200°C for 5 minutes.

[0074] Wherein, the auxiliary agent is a mixture of leveling agent, defoamer, wetting agent, booster and antioxidant in a mass ratio of 12:4:6:2:1; the main component of the leveling agent is poly acrylate; the main component of the defoamer is benzoin; the main component of the wetting agent is polymethyl methacrylate; the main component of the booster is a quaternary ammonium compound; the main component of the antioxidant is phosphorous acid ester. The filler is a combination of silicon dioxide, barium sulfate and zinc phosphate in a mass ratio of 2:2:1.

[0075] The resulting coating properties are shown in Table 1.

Embodiment 2

[0077] 623g of epoxy resin, 48g of dicyandiamide, 24g of auxiliary agent, 250g of zinc powder, 50g of filler and 5g of graphene are formulated into a masterbatch, melted and extruded, tabletted and cooled, and crushed to obtain powder sample powder by 150 mesh sieves. After spraying, bake at 150°C for 15 minutes.

[0078] Wherein, the auxiliary agent is a mixture of leveling agent, defoamer, wetting agent, booster and antioxidant in a mass ratio of 10:5:5.6:3:1; the main component of the leveling agent is poly acrylate; the main component of the defoamer is benzoin; the main component of the wetting agent is polymethyl methacrylate; the main component of the booster is a quaternary ammonium compound; the main component of the antioxidant is phosphorous acid ester. The filler is a combination of silicon dioxide, barium sulfate and zinc phosphate in a mass ratio of 2:1.5:2.5.

[0079] The resulting coating properties are shown in Table 1.

Embodiment 3

[0081] 620g of epoxy resin, 48g of triglycidyl isocyanurate, 24g of additives, 250g of zinc powder, 50g of filler and 8g of graphene are formulated into a masterbatch, melted and extruded, tableted and cooled, crushed and sieved through 150 mesh To obtain a powder sample powder, after electrostatic spraying, bake at 180°C for 10 minutes.

[0082] Wherein, the auxiliary agent is a mixture of leveling agent, defoamer, wetting agent, booster and antioxidant in a mass ratio of 15:3.5:6.3:1.6:1; the main component of the leveling agent is poly acrylate; the main component of the defoamer is benzoin; the main component of the wetting agent is polymethyl methacrylate; the main component of the booster is a quaternary ammonium compound; the main component of the antioxidant is phosphorous acid ester. The filler is a combination of silicon dioxide, barium sulfate and zinc phosphate in a mass ratio of 2:3:0.7.

[0083] The resulting coating properties are shown in Table 1.

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Abstract

The present invention provides a zincene anticorrosion powder coating and its preparation method and use method, wherein, the components of the zincene anticorrosion powder coating include:

Description

technical field [0001] The invention relates to an electrochemical anticorrosion powder coating and a preparation method thereof, in particular to an epoxy zinc-rich anticorrosion powder coating. Background technique [0002] As a new type of 100% solid powder coating, powder coating has the characteristics of solvent-free, recyclable, high powder coating rate, environmental protection and energy saving, and high mechanical properties of coating film. It is one of the development trends of coatings. Epoxy zinc-rich powder coating forms an effective conductive network by incorporating a large amount of zinc powder into the coating, which can conduct static electricity away in time, and when necessary, use zinc as a sacrificial anode to replace the base material for preferential corrosion, and its corrosion resistance is excellent. It is widely used in the field of heavy metal anti-corrosion. However, in the prior art, in order to form an effective conductive network in the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/10C09D5/46C09D7/61
CPCC09D163/00C09D5/033C09D5/038C09D5/106C08K2003/0893C08L2205/03C08L2205/02C08L33/04C08L33/12C08K3/04C08K3/08
Inventor 赖健平郑雅轩杨修宝瞿研
Owner THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH