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Oceanic heavy corrosion resistant self-stratifying coating

A heavy-duty anti-corrosion and self-layering technology, which is applied in anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor weather resistance, high cost, and poor interlayer adhesion, so as to reduce the process and improve production Effect of efficiency, strong interlayer adhesion

Active Publication Date: 2014-01-22
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, the existing anti-corrosion coatings have the following defects: one is good anti-corrosion and poor weather resistance, which requires a matching topcoat; the other is poor interlayer adhesion with good weather resistance; and two coats of topcoat
The construction process is responsible and the cost is high

Method used

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  • Oceanic heavy corrosion resistant self-stratifying coating
  • Oceanic heavy corrosion resistant self-stratifying coating
  • Oceanic heavy corrosion resistant self-stratifying coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The mass dosage of each component is as follows (Kg):

[0036]

[0037] The preparation method is: weigh according to the above formula, add epoxy resin E-44, fluorocarbon resin HFS-F-3000 and curing agent HB175 into the dispersion tank, add dispersant PEG600, defoamer, fluid under stirring Leveling agent, solvent DMAC, solvent xylene, pigment ferric oxide, high-speed dispersion for 30 minutes.

[0038] The performance indicators of the prepared coating are shown in Table 2 after testing:

[0039] Table II

[0040] project

Embodiment 2

[0042] The mass dosage of each component is as follows (Kg):

[0043]

[0044] The preparation method of embodiment two is identical with embodiment one, and the various performance indexes of the coating that prepares are tested are table three:

[0045] Table three

[0046] project

Embodiment 3

[0048] The mass dosage of each component is as follows (Kg):

[0049]

[0050] The preparation method of embodiment three is identical with embodiment one, and the various performance indexes of the coating that prepares are tested are table four:

[0051] Table four

[0052]

[0053]

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PUM

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Abstract

The invention discloses an oceanic heavy corrosion resistant self-stratifying coating which is prepared by using a conventional preparation process under the coordination of all functional auxiliaries including epoxy resin-44 and fluorocarbon resin HFS-F-3000 as base stocks, Basf isocyanate as a curing agent, N-dimethylacetamide and dimethylbenzene as solvents, polyethylene glycol 600 as a dispersing agent and ferric oxide and zinc phosphate as pigments. The oceanic heavy corrosion resistant self-stratifying coating has favorable corrosion resistance and strong interlayer adhesion, and can be used for realizing one-step industrial coating, reducing processes, lowering cost and greatly increasing the actual production efficiency.

Description

technical field [0001] The invention relates to an anti-corrosion paint for metals, in particular to a novel paint adaptable to the complicated marine corrosion environment. Background technique [0002] According to statistics, my country's annual loss due to marine corrosion reaches trillions of yuan. Especially driven by factors such as ship and container manufacturing, cross-sea bridges, offshore oil platforms and coastal ports, marine corrosion protection is even more urgent. The development of marine anti-corrosion and anti-fouling coatings in my country has started from the "April 18" ship coatings research to the present. The overall technical level is still 20-30 years behind advanced countries. Because marine anti-corrosion has high quality requirements for coatings, the protection period is generally required to be at least 10 years, which belongs to the heavy-duty anti-corrosion field. [0003] Heavy-duty anti-corrosion coatings refer to coatings that can be appl...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D175/08C09D163/00C09D127/12C09D5/08C09D7/12
Inventor 何海峰徐大鹏巨佳磊叶广树刘欣靳涛赵丽芬
Owner SHANDONG UNIV OF SCI & TECH
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