Method for rapidly generating dense silver chloride plating layer, and silver chloride electrode prepared through method

A silver chloride, dense technology, applied in the field of corrosion and protection of reinforced concrete structures, can solve the problems of general AgCl electrode reproducibility, tedious preparation of anodic chlorination, large difference in response curve slope, etc., to achieve potential reproducibility Excellent, reduced manufacturing time, improved efficiency
CN105067673AActive Publication Date: 2015-11-18HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HOHAI UNIV
Publication Date
2015-11-18

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Abstract

The present invention discloses a method for rapidly generating a dense silver chloride plating layer, and belongs to the technical field of reinforced concrete structure material corrosion and protection. The method comprises that: 1) one end of a silver wire and one end of a copper electric cable are welded, the welding position is sealed with an epoxy resin, the sliver wire at the exposed end is pre-treated, and the pre-treated sliver wire is soaked in a AgCl plating liquid; and 2) after the silver wire is soaked in the AgCl plating liquid for 10-60 min, a layer of the black and dense silver chloride plating layer is generated on the surface. According to the method of the present invention, the strong oxidizing property of the hypochlorite is used to manufacture the chlorine ion selective electrodes in the large-batch manner within the short time, such that the manufacturing time is significantly shortened, and the electrode manufacturing efficiency is improved; and the electrode manufactured through the method has the excellent electric potential reproducibility, and the chloride ion concentration-response curve of the electric potential is good.
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Description

technical field

[0001] The invention belongs to the technical field of corrosion and protection of reinforced concrete structures, and in particular relates to a method for rapidly forming a dense silver chloride coating and a silver chloride electrode prepared therefrom. Background technique

[0002] Steel bar corrosion is the main reason for the decline in the durability of concrete structures, which seriously threatens the service safety of concrete structures; while chloride ion intrusion is the main factor causing steel bar corrosion, when the concentration of free chloride ions in the concrete pore fluid around the steel bar exceeds the corrosion critical Concentration, steel will corrode. Therefore, it is of great practical significance to monitor the free chloride ion concentration in the concrete protective layer in real time to provide data support for the durability evaluation and remaining life prediction of concrete structures, and to ensure the durability and s...

Claims

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