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Underwater-curable epoxy glass flake coating and preparation method thereof

An epoxy glass, underwater curing technology, applied in the field of coatings, can solve problems such as easy dispersion of underwater construction, high viscosity of curing agent, and multiple diluents, etc. slow effect

Active Publication Date: 2021-09-21
XIAMEN SUNRUI SHIP COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the curing agent used in this invention has a high viscosity and requires more diluents, resulting in pollution
And the viscosity of the coating prepared by this invention is much lower than that of the present invention, and the underwater construction is not specially optimized so that the underwater construction is easy to disperse

Method used

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  • Underwater-curable epoxy glass flake coating and preparation method thereof
  • Underwater-curable epoxy glass flake coating and preparation method thereof
  • Underwater-curable epoxy glass flake coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The bisphenol A epoxy resin is E51 solvent-free epoxy resin.

[0044] The reactive diluent is 660A reactive diluent.

[0045] The water remover is ALT-201 and MG-104.

[0046] The coupling agent is KH-560.

[0047] The glass flakes are C-type glass flakes.

[0048] The curing agent is a solvent-free amine curing agent, wherein the active hydrogen equivalent of BS7156 polyamide curing agent is 145; the active hydrogen equivalent of BS8001LV phenalkamine curing agent is 120.

[0049] The pigment and filler are a mixture of feldspar powder and heavy calcium carbonate.

[0050] The liquid petroleum resin is Lütger LA300.

[0051] Example 1 The mass ratio of component A: component B is 1:1.

Embodiment 2

[0055] The bisphenol A epoxy resin is a solvent-free epoxy resin, including E51 epoxy resin and E44 epoxy resin.

[0056] The reactive diluent is 660A reactive diluent.

[0057] The water remover is ALT-201 and MG-104.

[0058] The coupling agent is KH-560.

[0059] The glass flakes are C-type glass flakes.

[0060] The curing agent is a solvent-free amine curing agent, wherein the active hydrogen equivalent of BS7156 polyamide curing agent is 145; the active hydrogen equivalent of BS8001LV phenalkamine curing agent is 120.

[0061] The pigment and filler are a mixture of feldspar powder and heavy calcium carbonate.

[0062] The liquid petroleum resin is Lütger LA300.

[0063] Example 2 The mass ratio of component A: component B is 1:1.

Embodiment 3

[0066] The bisphenol A epoxy resin is a solvent-free epoxy resin, including E51 epoxy resin and E44 epoxy resin.

[0067] The reactive diluent is 660A reactive diluent.

[0068] The water remover is ALT-201 and MG-104.

[0069] The coupling agent is KH-560.

[0070] The glass flakes are C-type glass flakes.

[0071] The curing agent is a solvent-free amine curing agent, wherein the active hydrogen equivalent of BS7156 polyamide curing agent is 145; the active hydrogen equivalent of BS8001LV phenalkamine curing agent is 120.

[0072] The pigment and filler are a mixture of feldspar powder and heavy calcium carbonate.

[0073] The liquid petroleum resin is Lütger LA300.

[0074] Example 3 The mass ratio of component A: component B is 1:1.

[0075] In Comparative Example 4, except that no pigments and fillers were added, the components used were the same as in Example 3, the preparation method was the same as in Example 3, and the mass ratio of component A and component B wa...

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Abstract

The invention relates to the technical field of coatings, and provides an underwater-curable epoxy glass flake coating and a preparation method thereof. The coating comprises a component A and a component B. The component A comprises bisphenol A epoxy resin, a reactive diluent, a thixotropic agent, a water removal agent, a coupling agent, butyl phthalate and glass flakes; the component B comprises a curing agent, a pigment filler, a thixotropic agent and liquid petroleum resin; the curing agent is formed by combining modified polyamide and modified phenolic aldehyde amine, wherein the reactive hydrogen equivalent of the modified polyamide is 80-200, and the viscosity of the modified polyamide at the temperature of 40 DEG C is 3000-21000 mPa*s; and the active hydrogen equivalent of the modified phenolic aldehyde amine is 70-120. According to the resin system provided by the invention, a bisphenol A epoxy resin system with good corrosion resistance is selected, the curing agent is a combination of modified polyamide which has good flexibility and can be cured on a wet surface and modified phenolic aldehyde amine with good corrosion resistance and high reaction rate, improvements are made against the curing of wet surfaces and the curing of the coating in an underwater environment is facilitated.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an underwater curable epoxy glass flake coating and a preparation method thereof. Background technique [0002] Epoxy glass flake coating has strong anti-corrosion performance, and is the first choice for heavy-duty anti-corrosion coatings in ports and wharves. The glass flakes added to the coating can effectively slow down H 2 O, Cl - Etc. penetration of the coating, prolonging the service life of concrete, steel and other components. [0003] In the process of port construction, in most cases, the facility components can be coated with glass flake anti-corrosion coating on the shore or in the factory building, and then hoisted and installed. However, some parts are located below the waterline due to factors such as the local natural environment and construction windows. If the conventional glass flake anti-corrosion coatings on the market are directly coated, on the one hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D157/02C09D5/08C09D7/61C08G59/46C08G59/62
CPCC09D163/00C09D5/08C09D7/61C09D7/70C08G59/46C08G59/623C08L63/00C08L57/02C08K7/00C08K3/40
Inventor 李陈郭康瑞瑞
Owner XIAMEN SUNRUI SHIP COATING
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