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Composite organic coating based on novolak epoxy vinyl resin and preparation method thereof

A technology of phenolic epoxy vinyl resin and phenolic epoxy vinyl, which is applied in the direction of epoxy resin coatings, coatings, anti-corrosion coatings, etc., and can solve problems such as increased product costs, decreased production efficiency, and poor thermal shock resistance , to achieve the effect of improving compression resistance, improving temperature resistance, and good self-lubricating performance

Active Publication Date: 2015-07-29
淄博福世蓝高分子复合材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In industrial production, various corrosive media often corrode devices or equipment, such as flue gas desulfurization devices, offshore structures, various chemical tanks, reaction kettles, chimneys, ventilation pipes, electrolytic tanks, sewage tanks, etc. As well as various heat exchanger tube sheets, various pump casings and pump bodies, various fan blades, hand molds, etc. The base materials of the above equipment are generally carbon steel, stainless steel, concrete, and their corrosion resistance is poor. It is extremely prone to corrosion in the chemical reaction environment, so it must be protected by coating
[0003] However, the adhesion between the coating and the substrate in the prior art is very low, the thermal shock resistance is poor, and it cannot withstand the corrosion of strong acids, strong alkalis, and organic solvents at high temperatures. After a period of use, the coating will appear The phenomenon of shedding, and once the coating has leaks and falls off, it will fall off in a large area, resulting in an increase in product costs and a decrease in production efficiency

Method used

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  • Composite organic coating based on novolak epoxy vinyl resin and preparation method thereof
  • Composite organic coating based on novolak epoxy vinyl resin and preparation method thereof
  • Composite organic coating based on novolak epoxy vinyl resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In terms of mass percentage, the modified resin formula:

[0043] Phenolic epoxy vinyl resin 25%, polyether ether ketone 5%, polyphenylene sulfide 8%, γ-methacryloxypropyl trimethoxysilane 3%, defoamer 1%, nano silicon 5%, Leveling agent 1%, barium sulfate 2%, talc 0.5%, 75 mesh C glass flake 18%, 100 mesh C glass flake 18%, 150 mesh C glass flake 3%, 200 mesh C glass flake 3%, UV absorption 0.3% of antioxidant, 0.3% of antioxidant, 2.5% of anti-settling additive, 3% of polyethylene anti-shrinking agent, and 1.4% of cobalt isooctanoate accelerator;

[0044] Curing agent formula: a mixture of methyl ethyl ketone peroxide and cyclohexanone peroxide in a mass ratio of 2:1, and the amount of resin is 1% (temperature 29°C, humidity 50%).

[0045] Material mechanical properties: shear force (adhesive force) 16MPa, stretch 35MPa, compression resistance 88MPa, Shore D hardness 86, temperature resistance 340℃, good thixotropy performance, one-time application thickness up to 3mm witho...

Embodiment 2

[0051] In terms of mass percentage, the modified resin formula:

[0052] Phenolic epoxy vinyl resin 30%, polyether ether ketone 3%, polyphenylene sulfide 3%, γ-methacryloxypropyl trimethoxysilane 1.5%, defoamer 0.5%, nano silicon 1.5%, Leveling agent 0.3%, barium sulfate 5%, talc 1.5%, 75 mesh C glass flake 13%, 100 mesh C glass flake 13%, 150 mesh C glass flake 8%, 200 mesh C glass flake 8%, UV absorption 0.8% of antioxidant, 0.8% of antioxidant, 1% of anti-settling aid, 4.1% of polyethylene anti-shrinking agent, and 5% of cobalt isooctanoate accelerator;

[0053] Curing agent formula: a mixture of methyl ethyl ketone peroxide and cyclohexanone peroxide in a mass ratio of 2:1, and the amount of resin is 2% (temperature 20°C, humidity 50%).

[0054] Material mechanical properties: shear force (adhesive force) 15MPa, tensile 38MPa, compression resistance 89MPa, Shore D hardness 87, dry environment temperature resistance 340℃, no cracks on the surface of the material, no shedding, goo...

Embodiment 3

[0060] In terms of mass percentage, the modified resin formula:

[0061] Phenolic epoxy vinyl resin 38%, polyether ether ketone 5%, polyphenylene sulfide 5%, γ-methacryloxypropyl trimethoxysilane 2%, antifoaming agent 0.8%, nano silicon 1%, Leveling agent 0.75%, barium sulfate 1.5%, talc 2%, 75 mesh C glass flakes 10%, 100 mesh C glass flakes 12%, 150 mesh C glass flakes 5.5%, 200 mesh C glass flakes 4.5%, UV absorption 0.4% of antioxidant, 0.25% of antioxidant, 1.8% of anti-settling additive, 7.5% of polyethylene anti-shrinking agent, and 2% of cobalt isooctanoate accelerator;

[0062] Curing agent formula: a mixture of methyl ethyl ketone peroxide and cyclohexanone peroxide in a 2:1 mass ratio, and the amount of resin is 1.5% (temperature 25°C, humidity 50%).

[0063] Material mechanical properties: shear force (adhesive force) 17MPa, tensile 36MPa, compression resistance 87MPa, Shore D hardness 87, dry environment temperature resistance 340℃, no cracks on the surface of the mater...

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Abstract

The invention relates to an organic coating and particularly relates to a composite organic coating based on phenolic epoxy vinyl resin and a preparation method thereof. The coating is prepared by the following steps: firstly reacting phenolic epoxy vinyl resin with polyether ether ketone to serve as basic resin, and then, adding a composite modifier to obtain modified resin, and finally, adding a curing agent to cure the resin at a normal temperature. The coating provided by the invention has excellent corrosion resistance, temperature resistance, thermal shock resistance and medium permeability resistance and has excellent adhesive strength with a metal matrix.

Description

Technical field [0001] The invention relates to an organic coating, in particular to a composite organic coating based on a phenolic epoxy vinyl resin and a preparation method thereof. Background technique [0002] In industrial production, various corrosive media often corrode devices or equipment, such as flue gas desulfurization devices, offshore buildings, various chemical tanks, reaction kettles, chimneys, ventilation pipes, electrolytic tanks, sewage tanks, etc. As well as various heat exchanger tube sheets, various pump casings and pump bodies, various fan blades, hand models, etc., the base materials of the above-mentioned equipment are generally carbon steel, stainless steel, concrete, and their corrosion resistance is poor. It is very easy to corrode in the chemical reaction environment, so it must be protected by coating. [0003] However, the adhesion between the coating and the substrate in the prior art is very low, the thermal shock resistance is poor, and it cannot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D161/06C09D5/08C09D7/12
Inventor 于成海杨振华胡薇王东志
Owner 淄博福世蓝高分子复合材料技术有限公司
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