Coating hole sealing agent with high hot corrosion resistance

A sealing agent, high heat resistance technology, applied in coatings, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve problems such as poor high temperature thermal corrosion resistance, reduce surface tension, improve high temperature resistance, and strengthen sealing. The effect of blocking effect

Active Publication Date: 2019-11-29
义乌市君胜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a highly heat-resistant and corrosion-resistant coating s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method of composite sealing base material, comprises the steps:

[0035] (1) At 70-85°C, mix basalt and hydrochloric acid solution with a mass fraction of 12% according to the mass ratio of 1:12-20, keep it warm at 400-700r / min for 1-3h, filter while it is hot, and collect the filter residue according to the mass ratio 1:10~15, add periodic acid solution with a concentration of 1mol / L and mix, keep warm at 80~90°C for 45~60min, cool naturally to room temperature, filter, collect the filter cake and wash it with water for 2~4 times, then move to an oven at 65°C Dry at ~80°C for 3~5h, collect the dried matter, and take 15~30 parts of dried matter, 2~5 parts of vinyltriethoxysilane, and 3~7 parts of hexadecyltrimethyl bromide Ammonium chloride and 6-10 parts of absolute ethanol are ground in a mortar for 3-5 hours, and the abrasive is collected;

[0036] (2) In parts by weight, take 30~40 parts of abrasive, 17~23 parts of polyvinyl alcohol, 15~20 parts of ...

Embodiment 1

[0040] Additives: At 30°C, take fatty alcohol polyoxyethylene ether and mix it with triethanolamine at a mass ratio of 3:1 for 30 minutes to obtain a mixture. Take the mixture and add hydroxyethyl cellulose and epoxy resin at a mass ratio of 10:1:2 for mixing. Additives are obtained.

[0041] Reagent A: Mix sodium metaaluminate, urea, and water in a mass ratio of 1:2:30 to obtain reagent A.

[0042] Reagent B: In parts by weight, take 5 parts of magnesium nitrate, 2 parts of aluminum nitrate, 6 parts of zinc nitrate, and 150 parts of water and mix to obtain a mixed salt solution. Take the mixed salt solution and add carbonamide to mix at a mass ratio of 20:1. That is, reagent B is obtained.

[0043] Auxiliary agent: Mix potassium thiocyanate and sodium citrate at a mass ratio of 3:1 to obtain the auxiliary agent.

[0044] Dispersant: Mix vinyl bis stearic acid amide and polyacrylamide at a mass ratio of 2:1 to obtain a dispersant.

[0045] Defoamer: mix polyoxypropyl polyox...

Embodiment 2

[0053] Additives: At 40°C, take fatty alcohol polyoxyethylene ether and mix it with triethanolamine at a mass ratio of 7:1 for 60 minutes to obtain a mixture. Take the mixture and mix it with hydroxyethyl cellulose and epoxy resin at a mass ratio of 10:1:5. Additives are obtained.

[0054] Reagent A: Mix sodium metaaluminate, urea, and water at a mass ratio of 1:4:50 to obtain reagent A.

[0055] Reagent B: In parts by weight, take 8 parts of magnesium nitrate, 5 parts of aluminum nitrate, 10 parts of zinc nitrate, and 200 parts of water and mix to obtain a mixed salt solution. Take the mixed salt solution and add carbonamide to mix at a mass ratio of 30:1. That is, reagent B is obtained.

[0056] Auxiliary: Mix potassium thiocyanate and sodium citrate at a mass ratio of 6:1 to obtain the auxiliary.

[0057] Dispersant: Mix vinyl bis stearic acid amide and polyacrylamide at a mass ratio of 5:1 to obtain a dispersant.

[0058] Defoaming agent: Mix polyoxypropyl polyoxyethyl ...

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PUM

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Abstract

The invention discloses a high-temperature-resistant and hot-corrosion-resistant coating hole sealing agent, and belongs to the technical field of hole sealing agents. According to the coating hole sealing agent, basalt is subjected to acid treatment, then the basalt is oxidized, the activity of the basalt is improved with surface active substances, the bonding degree between the basalt and othermacromolecular substances is enhanced by using organic silicon, gas is generated to dissipate heat in the heating process, a boehmite component is longitudinally formed in a gap through a hydrothermalmethod for nano-scale filling, high temperature resistance is improved, hot corrosion resistance is improved, and the packing of coating pores is completed; thioglycollic acid is utilized to react with active centers or active groups such as Lewis acid on the surface of vermiculite, when the reaction is carried out at high temperature, surface tension among particles is obviously reduced, and a good hole sealing effect can be formed; and magnesium and aluminum metal salts are used as raw materials, hydrotalcite-like components with good adsorbability are prepared through the hydrothermal method, chelation is generated through complexing, and the hot corrosion resistance is improved. According to the coating hole sealing agent, the problem that an existing common coating hole sealing agentis poor in high temperature resistance and hot corrosion resistance is solved.

Description

technical field [0001] The invention relates to the technical field of sealing agents, in particular to a sealing agent for highly heat-resistant and corrosion-resistant coatings. Background technique [0002] Aluminum is one of the most widely distributed elements in nature. Pure aluminum is soft in texture, low in density, good in ductility, and high in plasticity. It can be processed by various machines and has good electrical and thermal conductivity. Due to the low strength of pure aluminum, it can only be used as a structural material by alloying it to obtain an aluminum alloy with low density and high strength. Aluminum alloy materials have a series of excellent physical, chemical, mechanical and processing properties, which can meet the various requirements of various industries from kitchen utensils to cutting-edge technology, from architectural decoration to transportation, aerospace and other industries. It is widely used in various fields of national economy. ...

Claims

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Application Information

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IPC IPC(8): C25D11/24
CPCC25D11/246
Inventor 郭熙海
Owner 义乌市君胜科技有限公司
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