Nano-precursor medium transport inhibitor and preparation method thereof

A precursor and inhibitor technology, applied in the field of functional materials to inhibit the transmission of corrosive media in concrete, can solve the problems of poor stability, uneven dispersion, cannot reduce the diffusion of corrosive media, etc., and achieves convenient implementation and simple preparation process. Effect

Active Publication Date: 2019-01-11
JIANGSU SOBUTE NEW MATERIALS
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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 overcome the deficiencies in the prior art, and provide a medium transport inhibiting material of a nano-precursor, which generates nanoparticles in situ during the hydration process through the strongly alkaline environment produced by cement hydration, and the nanoparticles not only It has a hydrophobic function and can effectively fill the pores of concrete, thereby effectively solving the problem that hydrophobic materials cannot reduce the diffusion of aggressive media in a saturated state and improving the strength of concrete. At the same time, the nanoparticles generated in situ effectively solve the problem of adding nano Problems such as uneven dispersion and poor stability of materials

Method used

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  • Nano-precursor medium transport inhibitor and preparation method thereof
  • Nano-precursor medium transport inhibitor and preparation method thereof
  • Nano-precursor medium transport inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In reactor, add water 84kg, add ethyl benzoate 15kg successively, organic carboxylic acid polymer dispersant 0.1kg, crystal nucleus growth regulator aminotrimethylene phosphate 0.9kg, stabilizer N-phenyl-α-naphthylamine 0.01kg kg, the temperature was raised to 80°C, and the reaction was stirred for 2 hours to obtain the nano-precursor medium transport inhibitor.

Embodiment 2

[0029] Add 65kg of water to the reaction kettle, add polyethylene glycol tert-butylbenzoate 30kg successively, organic naphthalene formaldehyde condensation polymer dispersant 1kg, crystal nucleus growth regulator ethylenediaminetetramethylene phosphate 5kg, stabilizer dialkyl 0.05 kg of zinc dithiocarbamate was heated up to 30° C., stirred and reacted for 5 hours to obtain a nano-precursor medium transport inhibitor.

Embodiment 3

[0031] In reactor, add water 70kg, add ethanolamine phthalate 25kg successively, melamine polymer dispersant 5kg, crystal nucleus growth regulator sodium sulfanilate 0.2kg and molasses 0.1kg, stabilizing agent benzoic acid 0.9kg, be warming up to 90° C., stirred and reacted for 1 h to obtain the nano-precursor medium transport inhibitor.

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Abstract

The invention discloses a nano-precursor medium transport inhibitor and a preparation method thereof. The nano-precursor dielectric transport inhibitor comprises a nano-precursor, a dispersant, a crystal nucleus growth regulator, a stabilizer and water. The nano-precursor is a mixture of one or more of C1-22 organic carboxylate esters and C1-22 organic carboxylate salts. The preparation method hassimple processes and is easy to implement. The product has the characteristics of environmental protection and high efficiency and is very suitable for corrosion protection of reinforced concrete structures in a plurality of complex harmful ion-eroded environments such as saline-alkali land and ocean.

Description

technical field [0001] The invention relates to a functional material, which is especially suitable for inhibiting the transmission of corrosive media in concrete, and belongs to the field of building materials. technical background [0002] Corrosion damage of reinforced concrete is more and more serious, which will cause major safety accidents. Engineers and technicians from all over the world have always been concerned about the improvement of the corrosion resistance of reinforced concrete, especially with the rapid development of the economy and society, the continuous expansion of engineering application fields, and the harsh corrosion environment is becoming more and more common, practical and long-term corrosion resistance Additional measures are an effective means to reduce corrosion damage and delay the service life of structures. [0003] The more practical additional anti-corrosion measures in the prior art include: the use of anti-corrosion agents, rust inhibit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B24/16C04B24/20
CPCC04B40/0039C04B24/045C04B2103/408C04B24/12C04B24/121
Inventor 刘加平蔡景顺石亮穆松刘建忠姜骞周霄骋洪锦祥
Owner JIANGSU SOBUTE NEW MATERIALS
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