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A kind of anticorrosion paste for steel structure and preparation method thereof

An anti-corrosion, steel structure technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problem that the long-term effect of anti-corrosion cannot be guaranteed, meet the requirements of low level, flexible and simple construction process, protection The effect of resources

Active Publication Date: 2020-03-13
青岛海弗莱安全科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the environment in which the steel structure is located is dynamic (such as the vibration of the steel structure, the cyclic change of the atmospheric environment, etc.), and the anti-corrosion material layer on the surface will be gradually damaged due to its own defects or external effects, resulting in long-term corrosion protection. Effectiveness cannot be guaranteed, which is also the main reason why many anti-corrosion measures cannot completely solve the long-term effect of anti-corrosion, so it is also an important task of the present invention to provide an effective solution to the problem of "secondary corrosion"

Method used

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  • A kind of anticorrosion paste for steel structure and preparation method thereof
  • A kind of anticorrosion paste for steel structure and preparation method thereof
  • A kind of anticorrosion paste for steel structure and preparation method thereof

Examples

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preparation example Construction

[0029] A preparation method for an anti-corrosion paste for steel structures, comprising the following steps:

[0030] (1) Add base oil and adhesive to the double planetary stirring tank, turn on the heating and mixer, and heat until the temperature of the material reaches 85°C;

[0031] (2) Keep the condition at 85°C, stir at 400rpm-800rpm for 15min-25min, then add antioxidant, dispersing penetrant, hydrogenated castor oil derivative, fumed silica, pigment and shell powder in turn under stirring state, Then at 80°C-100°C and 800rpm-1200rpm for 60min-75min;

[0032] (3) Stop heating and pump the material into the kneader, turn on the kneader and cool down to below 50°C, then add the sterilant and corrosion inhibitor in sequence, knead for 100-120min after adding, stop the machine to discharge the material and pack it into the warehouse.

[0033] The anti-corrosion paste for steel structure includes the following components in parts by weight: 15 to 40 parts of base oil, the b...

Embodiment 1

[0036] Aiming at the problems such as crevice corrosion, fretting corrosion, stress corrosion, microbial corrosion and secondary corrosion currently existing in the connection parts of steel structures, the present invention proposes the following anti-corrosion solutions.

[0037] A semi-solid anti-corrosion paste for steel structure, its composition is calculated by percentage: bran oil 15%, hydroxyl-terminated polybutadiene 19.2%, pharmaceutical grade vaseline 4.8%, antioxidant 1010 0.6%, anti-oxidant Oxygen agent BHT 0.2%, flufenapyramide 2.7%, pyraclostrobin 2.7%, triazole fungicides 2.7%, soybean lecithin 10%, hydrogenated castor oil derivatives 8%, fumed silica 3% , gallic acid 3%, phytic acid 1.6%, secondary doped polyaniline nanomaterials 1.5%, shell powder 25%. This embodiment gained product specification is as table 1:

[0038] Table 1 embodiment 1 product specification

[0039]

[0040]

Embodiment 2

[0042] Aiming at metal structures that are susceptible to corrosion damage mainly by crevice corrosion, fretting corrosion, and stress corrosion, such as steel structure assemblies such as bolt joints, steel structures combined with seams, and welding points of load-bearing structures, the present invention proposes the following anti-corrosion solutions Program:

[0043] A semi-solid anti-corrosion paste for steel structure, its composition is calculated by percentage: sunflower oil 19%, hydroxyl-terminated polybutadiene 16.8%, pharmaceutical grade vaseline 4.2%, antioxidant 1010 0.75%, Antioxidant BHT 0.25%, flufenapyramide 2.5%, pyraclostrobin 2.5%, triazole fungicides 2.5%, soybean lecithin 9.5%, hydrogenated castor oil derivatives 7.5%, fumed silica 4 %, red iron oxide 1%, gallic acid 3.6%, phytic acid 1.7%, secondary doped polyaniline nanomaterials 1.7%, shell powder 22.5%. This embodiment gained product specification is as table 2:

[0044] Table 2 embodiment 2 produc...

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Abstract

The invention discloses an anti-corrosion ointment used for steel structures. The anti-corrosion ointment used for steel structures is characterized by comprising the following raw materials in percentages by mass: 15% to 40% of base oil, 6% to 24% of an adhesive, 0.8% to 1.48% of an antioxidant, 6% to 10% of a dispersion penetrating agent, 4% to 8% of a hydrogenated castor oil derivative, 3% to 8% of fumed silica, 12% to 25% of shell powder, 6.1% to 12% of a metal corrosion inhibitor, 0 to 8.1% of a sterilizing agent and 0 to 4% of a pigment. The anti-corrosion ointment provided by the invention can be used for steel structure, particularly connecting parts of steel structures, the anti-corrosion effect can reach more than 30 years, relatively frequent maintenance is omitted, the resources, manpower and material resources are saved, and the anti-corrosion ointment has remarkable economic benefits.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion materials, and in particular relates to an anticorrosion paste for steel structures and a preparation method thereof. Background technique [0002] Corrosion exists not only in various industrial sectors such as oil exploitation and petrochemical industry, but also in many parts of important facilities such as bridges, building structures, offshore equipment, electric power and ports. In the daily production process of the industrial sector, the process conditions of high temperature, high pressure and high flow rate make the corrosion problem more prominent and serious. The consequences of corrosion are not only the waste of resources, but also the production stoppage, material loss, and even fire and explosion. and other catastrophic accidents will bring great potential safety hazards to normal production; in addition, the corrosion of various important facilities by high-temperature and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C09D5/14C09D191/00C09D147/00C09D7/61C09D7/63C09D7/65
CPCC08K2003/265C08L2201/06C08L2205/035C09D5/08C09D5/14C09D191/00C08L47/00C08L79/02C08L5/08C08K13/02C08K5/13C08K5/521C08K5/053C08K5/1345C08K3/26C08K3/36C08K5/3445
Inventor 杨小刚
Owner 青岛海弗莱安全科技有限公司
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