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Inorganic matrix anticorrosion material for metal oil tank

A technology of anti-corrosion materials and base metals, which is applied in the field of inorganic-based metal oil tank anti-corrosion materials and preparations, can solve the problems of high cost and short life, and achieve the effects of improved service life, long life and excellent weather resistance

Active Publication Date: 2013-04-10
中国人民解放军空军勤务学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a long-acting and low-cost inorganic-based metal oil tank anti-corrosion material, aiming at the shortcomings of the existing organic-based anti-corrosion materials such as high cost and short life. Composite anti-corrosion layer with a service life of more than 20 years

Method used

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  • Inorganic matrix anticorrosion material for metal oil tank
  • Inorganic matrix anticorrosion material for metal oil tank
  • Inorganic matrix anticorrosion material for metal oil tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add P.052.5 Portland cement 37kg, water 3kg, self-crosslinking acrylate copolymer emulsion 18kg, light calcium carbonate 3kg, UEA calcium sulfoaluminate expansion agent 3kg and polypropylene short fiber 0.1kg in the mixing tank, Stir well (about 10 minutes); mix 100g of dibutyl phthalate plasticizer and 100g of polycarboxylate high-performance water reducer in advance, add slowly under stirring, and then add tributyl phosphate 100g of defoaming agent, fully stirred until there are no air bubbles (about 5 minutes or so), and the inorganic-based metal oil tank life-span anti-corrosion material slurry with protective performance in this embodiment is obtained.

[0015] During construction, the above slurry is stirred evenly, and the surface of the metal oil tank is sprayed with a high-pressure mortar spraying machine. The thickness of the anti-corrosion layer is about 2mm. After 5 days of curing, the inorganic-based composite anti-corrosion layer can be solidified on the su...

Embodiment 2

[0019] The process is the same as in Example 1, and the feeding amount is: 54kg of P.052.5 Portland cement, 22kg of water, 6kg of self-crosslinking acrylate copolymer emulsion, 16kg of light calcium carbonate, 8kg of UEA calcium sulfoaluminate expansion agent, polypropylene 0.8kg of short fibers, 300g of polycarboxylate high-performance water reducer, 200g of dibutyl phthalate plasticizer, and 200g of tributyl phosphate defoamer.

[0020] During construction, the above slurry is stirred evenly, and the surface of the metal oil tank is sprayed with a high-pressure mortar spraying machine. The thickness of the anti-corrosion layer is about 60mm. After 15 days of curing, the inorganic-based composite anti-corrosion layer can be solidified on the surface of the metal oil tank.

[0021] Main performance indicators:

[0022]

Embodiment 3

[0024] The process is the same as in Example 1, and the feeding amount is: 45kg of P.052.5 Portland cement, 42kg of water, 12kg of self-crosslinking acrylic copolymer emulsion, 9kg of light calcium carbonate, 5kg of UEA calcium sulfoaluminate expansion agent, polypropylene 0.4kg of short fibers, 200g of polycarboxylate high-performance water reducer, 150g of dibutyl phthalate plasticizer, and 150g of tributyl phosphate defoamer.

[0025] During construction, the above slurry is stirred evenly, and the surface of the metal oil tank is sprayed with a high-pressure mortar spraying machine. The thickness of the anti-corrosion layer is about 30mm. After 10 days of curing, the inorganic-based composite anti-corrosion layer can be solidified on the surface of the metal oil tank.

[0026] Main performance indicators:

[0027]

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Abstract

The invention discloses an inorganic matrix anticorrosion material for a metal oil tank and belongs to the field of metal surface anticorrosion materials. The inorganic matrix anticorrosion material for the metal oil tank is prepared by mixing and stirring the following raw materials: by weight, 37-54 parts of PO*52.5 Portland cement, 3-22 parts of water, 6-18 parts of self-crosslinking acrylate copolymer emulsions, 3-16 parts of precipitated calcium carbonate, 0.1-0.2 part of dibutyl phthalate plasticizer, 0.1-0.2 part of tributyl phosphate defoaming agents, 3-8 parts of calcium sulphoaluminate united expanding agents (UEAs), 0.1-0.8 part of polypropylene staple fibers and 0.1-0.3 part of polycarboxylic acid high-performance water reducing agents. By means of a mortar machine, the high pressure grouting is performed to solidify and form a composite anticorrosion layer onto the surface of a metal oil tank, and the anticorrosion layer is compact and hard as ceramics and firm in combination and has certain flexibility and appropriate expansion coefficient. The inorganic matrix anticorrosion material for the metal oil tank has the advantages of being good in ageing resistance and capable of separating the surface of the metal oil tank from external environment, and the service life of the inorganic matrix metal oil tank anticorrosion material can last for over 20 years.

Description

technical field [0001] The invention belongs to the field of metal surface anticorrosion materials, and in particular relates to an inorganic-based metal oil tank anticorrosion material and a preparation method thereof. Background technique [0002] At present, more than 90% of fuel oil is stored in metal oil tanks. These oil tanks are prone to corrosion in the atmosphere after long-term wind, sun, and rain. Especially in the southern coastal areas, the air is humid and the salinity is high, and metal oil tanks are more likely to be corroded. The bottom of the metal oil tank is in contact with the ground, which is susceptible to bacterial erosion and often becomes the hardest hit area for corrosion. [0003] The commonly used anti-corrosion methods for metal oil tanks are mainly coating zinc powder paint or other organic-based anti-corrosion paints / coatings on the surface of metal oil tanks. The main components of these anti-corrosion materials are organic substances, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 费逸伟孙世安张永国佟丽萍杨宏伟姜旭峰赵鹏程宋生奎李钦华
Owner 中国人民解放军空军勤务学院
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