Concrete anticorrosion material and preparation method thereof

A technology of anti-corrosion materials and concrete, applied in anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of coating fatigue aging, interface damage, peeling, etc., achieve good flexibility, improve durability, and improve acid and alkali resistance corrosive effect

Active Publication Date: 2019-03-22
西安斯派新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the process of engineering practice, it is found that ordinary concrete anti-corrosion materials have poor bonding performance with the concrete surface, and there are still problems such as insufficient toughness and weak anti-ultraviolet aging ability. In addition, the thermal expansion coefficients of anti-corrosion coatings and concrete materials are different. When the temperature When changing alternately, the interface between the two is easy to form stress concentration, which makes the coating fatigue and aging, and thus peels off due to inte

Method used

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  • Concrete anticorrosion material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] A composite modified concrete anticorrosion material given in this example is composed of the following raw materials in terms of weight percentage: 10% hydroxypropyl acrylate, 35.235% alkyd resin, 4% emulsifier, 0.04% graphene oxide, 3% hydrotalcite, 3% calcium hydroxide, 0.055% complexing agent, 0.07% carbon nanotube, 0.3% silicon nitride whisker, 3.5% coupling agent, 0.8% light stabilizer, 40% water.

[0030] The emulsifier is diacetyl tartaric acid mono-diglyceride, the coupling agent is borate coupling agent; the density of hydroxypropyl acrylate is 1.044g / mL, the refractive index is 1.445, and the solid content is ≥30%; the average alkyd resin The particle size is 16.75nm, the water absorption rate is 5.79%, the adhesion is grade 1, and the surface drying time is 1.5h~2h; the HLB value of the emulsifier is 7.0-9.0; graphene oxide is made from graphene through the Hummers oxidation method, and the diameter is 1~5μm. Monolayer ratio >99%, purity >99%, thickness 0.8-...

Embodiment 2

[0039] A composite modified concrete anticorrosion material given in this example is composed of the following raw materials in terms of weight percentage: 8% hydroxypropyl acrylate, 42% alkyd resin, 2% emulsifier, 0.02% graphene oxide, 3% hydrotalcite, 1% calcium hydroxide, 0.055% complexing agent, 0.07% carbon nanotube, 0.2% silicon nitride whisker, 2% coupling agent, 0.8% light stabilizer, 40.855% water.

[0040] Wherein the emulsifier is polyethylene glycol distearate, the coupling agent is an aluminate coupling agent, and the complexing agent consists of sodium ethylenediamine tetramethylene phosphate and mercaptoethylamine in a mass fraction of 66:34.

Embodiment 3

[0042] A composite modified concrete anticorrosion material given in this example consists of the following raw materials in terms of weight percentage: 9% hydroxypropyl acrylate, 37.015% alkyd resin, 3% emulsifier, 0.03% graphene oxide, Hydrotalcite 4%, calcium hydroxide 2%, complexing agent 0.065%, carbon nanotube 0.09%, silicon nitride whisker 0.25%, coupling agent 2.5%, light stabilizer 0.95%, water 41.1%; emulsifier is Sodium dodecylbenzenesulfonate, the coupling agent is silane coupling agent KH-570, and the complexing agent is composed of sodium ethylenediamine tetramethylene phosphate and mercaptoethylamine in mass fraction: 63:37.

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Abstract

The invention discloses a concrete anticorrosion material and a preparation method thereof. The disclosed concrete anticorrosion material is prepared from the following raw materials: 2-hydroxypropylacrylate, alkyd resin, emulsifying agents, graphene oxide, hydrotalcite-like compounds, calcium hydroxide, complexing agents, carbon nanometer tubes, Si2N3 whiskers, coupling agents, optical stabilizing agents and water. The disclosed preparation method comprises the steps that the formula quantity of the 2-hydroxypropyl acrylate, the alkyd resin and the emulsifying agents are mixed to obtain a mixture A; the formula quantity of hydrotalcite-like compound, calcium hydroxide, Si2N3 whiskers, coupling agents and water are mixed to obtain a mixture B; the mixture A, the mixture B and the formulaquantity of ethylene diamine tetra (methylene phosphonic acid) sodium, mercaptoethylamine, optical stabilizing agents, graphene oxide and carbon nanometer tubes are mixed to obtain the concrete anticorrosion material. The concrete anticorrosion material has good flexibility and anti-ultraviolet ageing performance, and has good bonding force with the concrete surface.

Description

technical field [0001] The invention relates to concrete protection materials, in particular to a concrete anticorrosion material and a preparation method thereof. Background technique [0002] Concrete is the largest and most widely used construction material in civil engineering, and plays a pivotal role in infrastructure. Under complex and changeable environmental conditions, concrete structures are inevitably subjected to comprehensive physical, chemical and biological effects of the service environment. Because it is a porous medium material, corrosion factors can often pass through pores of different sizes in concrete. It penetrates into the concrete, causing serious corrosion to the concrete structure, greatly reducing the safety performance and bearing capacity, resulting in a significant shortening of the life of the concrete and even a rapid structural damage, and bringing serious economic and social problems. [0003] The more conventional method currently used i...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/08C09D7/48C09D7/61
CPCC09D5/08C09D7/48C09D7/61C09D7/70C09D167/08C08K3/042C08K3/22C08K3/041C08K7/10C08K13/04
Inventor 王振军张含笑刘卓然何锐王笑风杨博郭豪彦
Owner 西安斯派新材料科技有限公司
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