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Raw oil-resistant coating composition

A composition and coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of oily sewage corrosion resistance, high temperature resistance, long protection life, etc., to increase crosslinking density and improve flexibility sex, with a reasonable effect

Active Publication Date: 2014-04-16
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing anti-corrosion coatings still cannot have the characteristics of high temperature resistance, crude oil resistance, oily sewage corrosion resistance and long protection life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 prepares A component A1 and A2

[0023] ① Formula

[0024] In the crude oil resistant coating composition of the present invention, in 100 parts by mass of component A, there are 25-33 parts of resin base material, 50-60 parts of pigment and filler, 1-3 parts of auxiliary agent, and the balance is organic solvent, wherein, The resin base material is a mixture of a high molecular weight epoxy resin and one or more low molecular weight epoxy resins, wherein the mass ratio of the high molecular weight epoxy resin to the low molecular weight epoxy resin is 1:1~3, specifically The formula is shown in Table 1.

[0025] Table 1

[0026]

[0027]

[0028] ②Preparation process

[0029] In the dispersion tank, add resin base material, organic solvent, and dispersant according to the formula in Table 1, stir evenly, add thixotropic agent, stir at high speed for 15 minutes, then add pigment titanium dioxide, filler talc powder, and feldspar powder respectively...

Embodiment 2

[0030] Embodiment 2 prepares modified amine 1 and modified amine 2

[0031] ① Formula

[0032] The modified amine of the present invention is obtained by modifying an organic amine with a monofunctional epoxy resin containing a benzene ring. When modifying, in 100 parts by mass of raw materials used, 35 to 55 parts of the organic amine contain a benzene ring 10-25 parts of monofunctional epoxy resin, and the balance is a mixed solvent. The specific formula is shown in Table 2.

[0033] Table 2

[0034]

[0035]

[0036] ②Preparation process

[0037] In the reaction kettle equipped with a water separator, add organic amine and mixed solvent according to the formula in Table 2, stir evenly, heat up to 40°C, add dropwise a monofunctional epoxy resin solution containing a benzene ring, add dropwise After completion, raise the temperature to 80°C and keep it warm for 1 hour, fill the water separator with mixed solvent, raise the temperature to 110°C-120°C for reflux dehydr...

Embodiment 3

[0038] Embodiment 3 prepares B component B1 and B2

[0039] ① Formula

[0040]In the crude oil resistant coating composition of the present invention, in 100 parts by mass of component B, there are 35 to 45 parts of polyamide, 40 to 55 parts of modified amine, 0.1 to 1.5 parts of coupling agent, 0.1 to 1.5 parts of catalyst, and the balance It is a mixed solvent, and the specific formula is shown in Table 3.

[0041] table 3

[0042]

[0043]

[0044] ②Preparation process

[0045] According to the formula in Table 3, add polyamide into the reaction bottle, then add modified amine, coupling agent, catalyst and mixed solvent, stir evenly, filter and pack, obtain B components B1 and B2 respectively, pack and store for future use.

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Abstract

The invention relates to a raw oil-resistant coating composition. The raw oil-resistant coating composition is a bi-component epoxy coating composed of a component A and a component B. 100 parts of component A by weight comprises the following components in parts by weight: 25-33 parts of resin binder, 50-60 parts of paint and a filling material, 1-3 parts of an additive and the balance of an organic solvent, wherein the resin binder is a compound of a high molecular weight epoxy resin and one or multiple low molecular weight epoxy resin; 100 parts of component B by weight comprises the following components in parts by weight: 35-45 parts of polyamide, 40-55 parts of modified amine, 0.1-1.5 parts of a coupling agent, 0.1-1.5 parts of a catalyst and the balance of a component solvent, wherein the modified amine is prepared by using a monofunctional epoxy resin containing benzene ring to modify organic amine; 100 parts of a used raw material by weight comprises the following components in parts by weight: 35-55 parts of organic amine, 10-25 parts of monofunctional epoxy resin containing benzene ring and the balance of the component solvent. According to the invention, the coating performance can reach performance standards of a protective coating for an oil cargo tank of a raw oil cargo, and the coating composition is suitable for being used as a protective coating for raw oil storage and transportation equipment and facilities.

Description

technical field [0001] The invention relates to a crude oil resistant coating composition, which is especially suitable for the anticorrosion protective coating of the substrate of crude oil storage and transportation equipment. Background technique [0002] Crude oil itself contains water, carbon dioxide, sulfur dioxide, hydrogen sulfide and other gases, and in crude oil with high sulfur content, it also contains organic sulfides such as mercaptans and thiophenes; crude oil is generally mixed with oilfield salt water. So crude oil is inherently corrosive, and in the environment where crude oil is stored and transported, these substances can become even more corrosive. In addition, during the transportation, loading and unloading of crude oil, heating is generally required, and the temperature is usually controlled at 60-70°C, and the maximum temperature generally does not exceed 80°C. It can be seen that the corrosion of crude oil itself and the special state of storage an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D7/12C09D5/08C08G59/60C08G59/14
Inventor 王秀娟马胜军常安乐方健君李敏张伟丽
Owner CHINA NAT OFFSHORE OIL CORP
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