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Concrete surface protection nano paint and manufacturing technique thereof

A technology of concrete surface and nano-coating, applied in anti-corrosion coatings, coatings, etc., can solve the problems of insufficient durability protection, high self-shrinkage and brittleness of concrete, and achieve high corrosion resistance and high wear resistance. Effect

Inactive Publication Date: 2015-07-22
重庆卡勒斯通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improving the resistance of concrete itself to corrosion is the most important and fundamental protection principle, but the first method has certain limitations
First of all, the performance defects of high-performance concrete that deserve attention are high self-shrinkage and brittleness; secondly, concrete is a porous material, and environmental factors such as seawater and freezing mostly cause corrosion of concrete structures from the surface, and concrete alone is not enough To achieve durable protection; again, the use of high-performance concrete is mainly for those buildings under construction and proposed construction, and it is powerless for the corrosion protection of a large number of large infrastructures in service

Method used

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  • Concrete surface protection nano paint and manufacturing technique thereof
  • Concrete surface protection nano paint and manufacturing technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of technology of preparing concrete surface protective nano-coating, this technology comprises the steps:

[0019] 1) Add 29Kg of n-butanol into the reaction kettle, then add 24Kg of nano silicon dioxide while stirring, and stir for 30 minutes.

[0020] 2) Add 14Kg of trimethoxysilane and 11Kg of isobutyltriethoxysilane into the reaction kettle, and stir for 1 hour.

[0021] 3) Add 5.5Kg of butyl acetate and 7.5Kg of ethyl orthosilicate into the reaction kettle, and stir for 1 hour.

[0022] 4) Add 3Kg of dodecyl alcohol ester into the reaction kettle and stir for 30 minutes to obtain the concrete surface protective nano-coating.

[0023] 5) Sealing and filling the concrete surface protective nano-coating, the sealing and filling work must be completed within 1 hour.

[0024] The prepared concrete surface protective nano-coating is used on the concrete surface, and the experimental test index:

[0025]

Embodiment 2

[0027] A kind of technology of preparing concrete surface protective nano-coating, this technology comprises the steps:

[0028] 1) Add 30Kg of n-butanol into the reaction kettle, then add 25Kg of nano silicon dioxide while stirring, and stir for 30 minutes.

[0029] 2) Add 15Kg of trimethoxysilane and 12Kg of isobutyltriethoxysilane into the reaction kettle, and stir for 1 hour.

[0030] 3) Add 6.0Kg of butyl acetate and 8.0Kg of ethyl orthosilicate to the reaction kettle, and stir for 1 hour.

[0031] 4) Add 4Kg of dodecyl alcohol ester to the reaction kettle and stir for 30 minutes to obtain the concrete surface protective nano-coating.

[0032] 5) Sealing and filling the concrete surface protective nano-coating, the sealing and filling work must be completed within 1 hour.

[0033] The prepared concrete surface protective nano-coating is used on the concrete surface, and the experimental test index:

[0034]

Embodiment 3

[0036] A kind of technology of preparing concrete surface protective nano-coating, this technology comprises the steps:

[0037] 1) Add 31Kg of n-butanol into the reaction kettle, then add 26Kg of nano-silica while stirring, and stir for 30 minutes.

[0038] 2) Add 16Kg of trimethoxysilane and 13Kg of isobutyltriethoxysilane into the reaction kettle, and stir for 1 hour.

[0039] 3) Add 6.5Kg of butyl acetate and 8.5Kg of ethyl orthosilicate into the reaction kettle, and stir for 1 hour.

[0040] 4) Add 5Kg of dodecyl alcohol ester into the reaction kettle and stir for 30 minutes to obtain the concrete surface protective nano-coating.

[0041] 5) Sealing and filling the concrete surface protective nano-coating, the sealing and filling work must be completed within 1 hour.

[0042] project parameter standard Pull-out adhesion test, MPa Level 1 GB / T 5210-2006 pencil hardness 6H unbroken GB / T6739-2006 Water resistance (soaked for 30 days) n...

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Abstract

The invention discloses a concrete surface protection nano paint which comprises the following components in parts by weight: 24-26 parts of nano silicon dioxide, 29-31 parts of n-butanol, 5.5-6.5 parts of butyl acetate, 7.5-8.5 parts of ethyl orthosilicate, 14-16 parts of trimethoxy silicane, 11-13 parts of isobutyl triethoxy silane and 3-5 parts of C12 alcohol ester. The invention also discloses a technique for preparing the concrete surface protection nano paint. The concrete surface protection nano paint can be applied to surface protection of various types of ordinary concrete, high-stress concrete and special additive concrete. The concrete surface protection nano paint can form a transparent or colored compact protective film with the thickness of 20-30 micrometers on the concrete surface, thereby satisfying the requirements of long-term carbonization resistance, corrosion resistance, chlorine ion permeation resistance, bioerosion resistance, shedding and peeling resistance and the like for the concrete. The protective coating has the characteristics of high wear resistance, high corrosion resistance and high cleanness.

Description

technical field [0001] The invention relates to a nano-coating for surface protection, in particular to a nano-coating for concrete surface protection and a manufacturing process thereof. Background technique [0002] Concrete and reinforced concrete structures are often used in a variety of corrosive media. In addition, concrete itself is a porous structure, and corrosion is very common. The corrosion damage of concrete structures has attracted more and more attention. Coating protection is a simple and efficient protective measure, which can improve the durability of concrete by coating a certain material to form a protective layer on the surface of concrete that can prevent water-soluble media from entering the interior of the concrete. [0003] Coating protection technology has become increasingly mature, and new materials and technologies are constantly emerging, which provide new ideas for the corrosion protection of concrete. Concrete corrosion refers to the dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/12C09D5/08
Inventor 任松殷黎明李林张学明
Owner 重庆卡勒斯通科技有限公司
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