Double fluorine treatment solution, preparation method and surface treatment method of magnesium alloy building formwork

A building formwork, fluorine treatment technology, applied in double fluorine treatment liquid, magnesium alloy building formwork surface treatment, preparation field, can solve the problems such as difficult to meet the technical requirements, achieve the effect of light pollution, pollution reduction and easy disposal

Active Publication Date: 2022-03-11
重庆建谊祥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (3) It is difficult to meet the technical requirements of clear-water concrete and facing clear-water concrete for formwork

Method used

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  • Double fluorine treatment solution, preparation method and surface treatment method of magnesium alloy building formwork
  • Double fluorine treatment solution, preparation method and surface treatment method of magnesium alloy building formwork
  • Double fluorine treatment solution, preparation method and surface treatment method of magnesium alloy building formwork

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0044] The invention provides a double fluorine treatment solution, which comprises the following components according to weight percentage: 20%-30% of inorganic fluoride, 20%-40% of organic fluorine-containing emulsion, 15%-20% of nano-silica sol, corrosion inhibitor 0.3%-0.5% of components, 0.8%-2% of silane coupling agent, 20%-43.9% of deionized water.

[0045] The inorganic fluoride is one or more of hydrofluoric acid, fluorosilicic acid, fluorotitanic acid, hypofluorous acid, hydrofluoric acid, fluorosilicate, fluorotitanate, and hypofluorous acid.

[0046] The organic fluorine-containing emulsion is an emulsion blended with a fluorine-containing water-based resin and a water-based epoxy resin, and the weight ratio of the two is 8:1-5:1; the organic fluorine-containing emulsion has self-crosslinking characteristics, and at the same time Has self-stratification characteristics;

[0047] The fluorine-containing water-based resin is polytetrafluoroethylene, polyvinylidene f...

Embodiment 1

[0058] A double fluorine treatment solution, the composition (percentage by weight) includes: 22% of hydrofluoric acid, 30% of organic fluorine-containing emulsion, 16% of nano-silica sol with a particle size of 100-200nm, 0.3% of sodium metavanadate corrosion inhibitor component, γ-(2,3-epoxypropoxy)propyltrimethoxysilane coupling agent 1%, deionized water 30.7%.

[0059] Prepare the double fluorine treatment solution according to the above composition ratio, first add 24% deionized water to the container, then add 22% hydrofluoric acid, stir evenly, then add 0.3% sodium metavanadate corrosion inhibitor component, stir evenly Then add 1% of -(2,3-glycidyloxypropoxy)propyltrimethoxysilane coupling agent, simultaneously add 16% of 100-200nm particle size nano-silica sol, and add self-made organic fluorine-containing emulsion 30% while stirring at room temperature %, replenish the remaining 6.7% deionized water, and stir for 4 hours to obtain the difluoride treatment solution. ...

Embodiment 2

[0063] A double fluorine treatment solution, the composition (percentage by weight) includes: 25% hydrofluoric acid, 20% organic fluorine-containing emulsion, 20% nano-silica sol with a particle size of 100-200nm, 0.5% potassium metavanadate corrosion inhibitor component, γ-(2,3-epoxypropoxy)propyltrimethoxysilane coupling agent 2%, deionized water 32.5%. Prepare the double fluorine treatment solution according to the above composition ratio, first add 20% deionized water to the container, then add 25% hydrofluoric acid, stir evenly, then add 0.5% potassium metavanadate corrosion inhibitor component, stir evenly Then add 2% of -(2,3-glycidyloxypropoxy)propyltrimethoxysilane coupling agent, simultaneously add 20% of 100-200nm particle size nano-silica sol, and add self-made organic fluorine-containing emulsion 20% while stirring at room temperature %, add the remaining 12.5% ​​deionized water, and stir for 5h to obtain the difluoride treatment solution.

[0064] The magnesium ...

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Abstract

The invention discloses a double-fluorine treatment solution, a preparation method and a surface treatment method for magnesium alloy building templates; the double-fluorine treatment solution comprises the following components according to weight percentage: 20%-30% of inorganic fluoride, organic fluorine Emulsion 20%-40%, nano-silica sol 15%-20%, corrosion inhibitor component 0.3%-0.5%, silane coupling agent 0.8%-2%, deionized water 20%-43.9%. After immersing in the double fluorine treatment solution and then drying, a self-healing double fluorine composite film system consisting of three layers of inorganic fluoride layer, transition layer and organic fluoride layer can be formed on the surface of the magnesium alloy. The layer can effectively guarantee the surface hardness, scratch resistance and hydrophobicity of the magnesium alloy formwork, reduce the friction damage caused by the concrete aggregate to the formwork and the corrosion damage from the external erosive medium, prevent the chemical reaction and physical adsorption between the cement and the formwork, and ensure Construction quality and demoulding effect of building walls.

Description

technical field [0001] The invention belongs to the technical field of concrete engineering construction formwork, and in particular relates to a double fluorine treatment solution, a preparation method and a surface treatment method of a magnesium alloy building formwork. Background technique [0002] Reinforced concrete structure building molding is mainly realized by means of building formwork. The cost of building formwork accounts for almost 20% to 30% of the total project cost. The use of building templates is directly related to the quality and benefits of the entire project. Traditional building formwork is made of wood formwork or steel formwork. Wooden formwork is not fireproof, perishable, and not durable, while steel formwork is relatively bulky, difficult to use on site, high in cost, and prone to rust. [0003] The birth of the new aluminum formwork has broken the shackles of the traditional formwork, and its development is very rapid. However, since aluminu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D163/00C09D5/08C09D5/16C09D7/61C09D7/63B05D7/14B05D7/24
CPCC09D127/12C09D5/08C09D5/1687B05D7/14B05D7/24C08K2201/011C08L63/00C08K3/16C08K3/36C08K3/24C08K5/5435C08K13/02
Inventor 曹献龙赵贵川向和定
Owner 重庆建谊祥科技有限公司
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