Solvent-free cardanol epoxy heavy-duty antiseptic paint and method for producing the same

A technology of cardanol epoxy and cardanol epoxy resin, which is applied in the field of solvent-free cardanol epoxy heavy-duty anti-corrosion paint and its preparation, can solve the problems of oil resistance, paint film brittleness, heat resistance, etc., and increase flexibility , the effect of excellent performance

Active Publication Date: 2009-08-19
湖北铁神新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing epoxy resin used for anti-corrosion coatings has many disadvantages as a film-forming agent: the paint film is brittle, and its temperature resistance and ultraviolet resistance are poor. Epoxy resin curing agent is highly toxic, and after cross-linking with epoxy, the pot life is short, the proportion range is narrow, and some properties are not satisfactory (large internal stress, oil resistance, water resistance, heat resistance, weather resistance, etc.); use A

Method used

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  • Solvent-free cardanol epoxy heavy-duty antiseptic paint and method for producing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1: solvent-free cardanol epoxy heavy-duty anticorrosion paint, it consists of 40% nitrile modified epoxy resin, 35% cardanol epoxy curing agent, 8% ethylene glycol diglycidyl ether, 6 % talcum powder, 6% barium sulfate and 5% BZ202 wetting and dispersing agent; the above percentages are percentages by weight.

[0021] The above-mentioned nitrile modified epoxy resin is obtained by the following method: liquid nitrile rubber-26 (product of Lanzhou Petrochemical Company), epoxy resin (E-51) and catalyst benzoyl peroxide are mixed and stirred evenly, and reacted at 80 ℃ 3h to obtain a nitrile-modified epoxy resin; the weight ratio of the amount of nitrile rubber to epoxy resin is 1:2, and the amount of catalyst used is 3% of the total weight of nitrile rubber and epoxy resin.

[0022] The preparation method of above-mentioned solvent-free cardanol epoxy heavy-duty anti-corrosion paint, according to the proportioning of above-mentioned solvent-free cardanol epoxy...

Embodiment 2

[0023] Embodiment 2: solvent-free cardanol epoxy heavy-duty anticorrosion paint, it consists of 60% nitrile modified epoxy resin, 20% cardanol epoxy curing agent, 5% ethylene glycol diglycidyl ether, 10% talcum Powder and 5% BZ610 leveling agent; the above percentages are percentages by weight.

[0024] The above-mentioned nitrile-modified epoxy resin is obtained by the following method: mix and stir nitrile-butadiene rubber-40 (product of Lanzhou Petrochemical Company), epoxy resin (E-44) and azobisisobutyronitrile evenly, and react at 150°C for 3h , to obtain nitrile modified epoxy resin; the weight ratio of the amount of nitrile rubber to epoxy resin is 1:9, and the amount of catalyst is 1% of the total weight of nitrile rubber and epoxy resin.

[0025] The above-mentioned cardanol epoxy resin curing agent is obtained by the following method: add 75wt% cardanol xylene solution to the cardanol xylene solution weight 10wt% formaldehyde and stir evenly, then heat up to 90 ° C,...

Embodiment 3

[0027] Embodiment 3: solvent-free cardanol epoxy heavy-duty anticorrosion paint, it consists of 40% nitrile modified epoxy resin, 40% cardanol epoxy curing agent, 5% ethylene glycol diglycidyl ether, 10 % barium sulfate and 5% BZ401 defoamer; the above percentages are percentages by weight.

[0028] The above-mentioned nitrile-modified epoxy resin is obtained by the following method: mix and stir nitrile rubber 820, epoxy resin (E-51) and azobisisobutyronitrile evenly, and react at 100° C. for 1 hour to obtain nitrile-modified epoxy resin Resin; the weight ratio of the amount of nitrile rubber to epoxy resin is 1:5, and the amount of catalyst is 2% of the total weight of nitrile rubber and epoxy resin.

[0029] The above-mentioned cardanol epoxy resin curing agent is obtained by the following method: add 50wt% cardanol xylene solution to the cardanol xylene solution weight 30wt% formaldehyde and stir evenly, then heat up to 100°C, then add cardanol xylene solution weight 90% ...

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Abstract

The invention provides a solvent-free cardanol epoxy heavy anticorrosive paint, comprising 40-60 wt% of butyronitrile modified epoxy; 20-40 wt % of cardanol epoxy firming agent; 5-20 wt % of reactive diluent; 10-30 wt % of color filler and 5-8 wt% of additive. The invention further provides a preparation method of the solvent-free cardanol epoxy heavy anticorrosive paint, comprising the following steps: evenly mixing, stirring and milling the butyronitrile modified epoxy, the reactive diluent, the color filler and the additive so as to obtain component A according to mixture ratio of the solvent-free cardanol epoxy heavy anticorrosive paint; taking the cardanol epoxy firming agent as component B; and evenly mixing and stirring the component A and comment B when in use. The invention has the advantages of good high-temperature resistance property, good oil resistant property, strong chemicals corrosion resistance property, good construction matching property, good matching use property with the cathode protector of a storage tank, stable curing reaction in low-temperature moist environment, long service life, outstanding paint film insulating property, no environmental pollution, no irritating gas as well as simple, safe, environmental protection and healthy use.

Description

technical field [0001] The invention relates to a solvent-free cardanol epoxy heavy-duty anticorrosion paint and a preparation method thereof. Background technique [0002] The existing epoxy resin used for anti-corrosion coatings has many disadvantages as a film-forming agent: the paint film is brittle, and its temperature resistance and ultraviolet resistance are poor. Epoxy resin curing agent is highly toxic, and after cross-linking with epoxy, the pot life is short, the proportion range is narrow, and some properties are not satisfactory (large internal stress, oil resistance, water resistance, heat resistance, weather resistance, etc.); use A large number of organic solvent diluents can adjust viscosity and pollute the environment. Construction in a closed system is likely to cause "flash explosion" and cause personal safety and property damage. The above drawbacks are difficult to meet the requirements of heavy-duty anti-corrosion coatings in various modern applicati...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 施铭德曾福生周春爱
Owner 湖北铁神新材料有限公司
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