Epoxy zinc-enriched antiseptic powdery paint and production thereof

A powder coating, epoxy zinc-rich technology, applied in epoxy resin coatings, coatings and other directions, can solve the problems of high construction cost, poor mechanical properties of coatings, environmental pollution, etc., and achieve the effect of simple production and use methods

Inactive Publication Date: 2005-12-28
XUZHOU ZENITH COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, like ordinary paints and powder coatings, the existing zinc-rich primers obviously have the defects of poor co

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material dosage (wt%)

[0026] Epoxy resin E-12 30

[0027] Novolak epoxy resin GT-7255 15

[0028] Phenolic curing agent PSG-01 9

[0029] Curing accelerator 0.3

[0030] Leveling agent 503 2.4

[0031] Toughener PVB 1.3

[0032] Degasser 0.3

[0033] Flow enhancer 0.2

[0034] Ultrafine barium sulfate 11.5

[0035] Zinc powder 30

[0036] Prepared according to the above formula by melt extrusion mixing method, epoxy zinc-rich heavy-duty anti-corrosion powder coating can be obtained. Its coating adhesion is grade 0, impact strength 100cm, salt spray resistance time ≥ 3000h, artificial accelerated aging time ≥ 300h, natural exposure for 12 months without blistering, rust, cracking, or peeling.

Embodiment 2

[0038] Raw material dosage (wt%)

[0039] Epoxy resin E-12 40

[0040] Novolak epoxy resin GT-7255 5

[0041] Phenolic curing agent PSG-01 10

[0042] Curing accelerator 0.3

[0043] Leveling agent 503 2.8

[0044] Toughener PVB 1.5

[0045] Degasser 0.2

[0046] Flow enhancer 0.2

[0047] Ultrafine Barium Sulfate 20

[0048] Zinc powder 20

[0049] Prepared according to the above formula by melt extrusion mixing method, epoxy zinc-rich heavy-duty anti-corrosion powder coating can be obtained. Its coating adhesion is grade 0, impact strength 80cm, salt spray resistance time ≥ 2000h, artificial accelerated aging time ≥ 250h, natural exposure for 12 months without blistering, rust, cracking, or peeling.

Embodiment 3

[0051] Raw material dosage (wt%)

[0052] Epoxy resin E-12 38

[0053] Novolac epoxy resin GT-7255 3

[0054] Phenolic curing agent 5

[0055] Curing Accelerator 1.4

[0056] Leveling agent 503 1.3

[0057] Toughener PVB 0.3

[0058] Degasser 0.1

[0059] Flow enhancer 0.1

[0060] Ultrafine barium sulfate 0.8

[0061] Zinc powder 50

[0062] The epoxy zinc-rich heavy-duty anti-corrosion powder coating can be obtained by preparing according to the above-mentioned formula according to the melt extrusion mixing method. Its coating adhesion is grade 1, impact strength ≥ 50cm, salt spray resistance time ≥ 3000h, artificial accelerated aging time ≥ 500h, natural exposure for 12 months without blistering, rust, cracking, and peeling.

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PUM

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Abstract

An epoxy resin and zinc-enriched heavy anti-corrosive powdery coating and its production are disclosed. The coating consists of epoxy resin, phenolic epoxy resin, zinc powder, curing agent, curing improver, leveling agent, toughening agent, degassing agent and flowing improver. The process is carried out by using filler as raw materials, preparing pre-disperse mixture from melt extrude mixing method or melt high-speed stir mixing method, mixing, extruding, breaking, screening and testing. It achieves non-toxic, no pollution and corrosion prevention.

Description

technical field [0001] The invention relates to an epoxy zinc-rich heavy-duty anti-corrosion powder coating and a preparation method thereof, belonging to the technical field of electrostatic coating powder coatings. Background technique [0002] Heavy-duty anti-corrosion powder coatings are one of the development trends of powder coatings. At present, heavy-duty anti-corrosion powder coatings mainly improve the anti-corrosion ability of powder coatings through base material resin modification and anti-rust pigments and fillers. At the same time, thick coating, multi-coating or composite coating are adopted. Construction method, in order to achieve the heavy-duty anti-corrosion purpose of the coating. [0003] Utilizing the principle of anodic oxidation of metal zinc to protect steel substrates, people have developed inorganic zinc-rich primers and organic zinc-rich primers, which have been successfully applied to the anti-corrosion construction of various steel structures a...

Claims

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Application Information

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IPC IPC(8): C09D163/00
Inventor 陆东方晁兵
Owner XUZHOU ZENITH COATING
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