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Self-repairing corrosion inhibitor of Q235 steel and preparing method thereof

A corrosion inhibitor and halloysite nanotube technology, applied in the field of metal anti-corrosion, can solve problems such as harming human health and the environment, carcinogenicity, high toxicity, etc., and achieve the effect of improving anti-corrosion performance

Inactive Publication Date: 2019-03-15
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Many existing corrosion inhibitors have certain defects, such as high toxicity and carcinogenicity, which will seriously endanger human health and the environment. Therefore, it is urgent to find a cost-effective and environmentally friendly corrosion inhibitor

Method used

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  • Self-repairing corrosion inhibitor of Q235 steel and preparing method thereof
  • Self-repairing corrosion inhibitor of Q235 steel and preparing method thereof
  • Self-repairing corrosion inhibitor of Q235 steel and preparing method thereof

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Embodiment Construction

[0032] The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.

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Abstract

The invention discloses a pH-sensitive Q235 steel corrosion inhibitor with the self-healing ability. The corrosion inhibitor is 8-HQ embedded HNTs, the outer portion is wrapped with a polyelectrolyte,and the polyelectrolyte selects PSS and PAH. When the Q235 steel has the cathode reaction in the corrosion process, the local pH value is changed, the 8-HQ is released to form a complex compound withiron ions, and absorbing is carried out on the surface of the Q235 steel so as to overcome the defect.

Description

technical field [0001] The invention relates to a corrosion inhibitor, in particular to a pH-sensitive Q235 steel corrosion inhibitor with self-healing ability and a preparation method thereof, belonging to the technical field of metal anticorrosion. Background technique [0002] Corrosion protection of metals and their alloys is one of the most important issues in industry and everyday life, as corrosion can lead to material failure, equipment shutdown, resource waste, product loss or contamination, reduced productivity and increased maintenance costs. Although various protective coatings for metals have been studied in the past few years, once corrosion substances accumulate in the protective layer, they will penetrate into the metal surface, causing continuous corrosion to occur. Therefore, in order to achieve long-term protection of metal surfaces with active healing ability, self-healing coatings have attracted extensive attention in recent years. [0003] One approach...

Claims

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Application Information

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IPC IPC(8): C23F11/173
CPCC23F11/173
Inventor 应叶杨海峰范娟娟姜月月
Owner SHANGHAI NORMAL UNIVERSITY
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