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Mesoporous carbon based nanocontainer coatings for corrosion protection of metal structures

A porous carbon and container technology, applied in the field of anti-corrosion protection, can solve the problems of rapid coating degradation, deactivation of inhibitors, continuous leaching of pollution inhibitors, etc.

Pending Publication Date: 2020-06-05
KHALIFA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such inhibitors often chemically interact with other components of the coating formulation, thereby leading to inactivation of the inhibitor and / or rapid degradation of the coating
In addition, continuous leaching of inhibitors that contaminates the environment may occur, and the widespread distribution of inhibitors does not enable on-demand release of inhibitors only in damaged areas

Method used

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  • Mesoporous carbon based nanocontainer coatings for corrosion protection of metal structures
  • Mesoporous carbon based nanocontainer coatings for corrosion protection of metal structures
  • Mesoporous carbon based nanocontainer coatings for corrosion protection of metal structures

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Embodiment Construction

[0059] According to the disclosure provided by the present inventors, the confirmed advantages of the self-healing anti-corrosion coating composition are as follows:

[0060] The nanocontainers in this polymer coating have greater freedom of movement than those in sol-gel coatings in which they are intimately associated with the sol-gel.

[0061] Due to the high cost of the raw materials (metal alkoxides) used for sol-gel coating, this method is not economically feasible. Starting materials for nanocontainer-polymer coatings such as vinyl acrylate and polyvinyl butyral (PVB) are the most cost-effective.

[0062] Curing of the nanocontainer-polymer coating at 30-70°C was sufficient to obtain a coating of uniform thickness. Sol-gel coatings always require high-temperature annealing to achieve a dense microstructure.

[0063] High temperature sintering introduces cracks and / or delamination in the sol-gel coating. The curing of the nanocontainer-polymer coating improves the che...

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Abstract

A mesoporous carbon container comprising an embedded organic corrosion inhibitor and having an organic polymeric coating is described. Further described are a coating comprising such a container and amethod for producing such a container.

Description

technical field [0001] The present invention relates to corrosion protection. Against this background, the present invention relates to carbon containers comprising embedded corrosion inhibitors and having a polymer coating, to coatings comprising such carbon containers and to methods for their production. Background technique [0002] Due to the interaction with gases, oils, moisture, chemicals, etc., storage and transport facilities are frequently corroded and thus require maintenance and result in huge economic losses. To protect metal structures from corrosion, protective polymer coatings are considered. This protective polymer coating has a barrier function, however, this barrier function is destroyed when pores or cracks are formed in or on the coating that allow corrosive substances to directly enter the metal surface. [0003] Addition of corrosion inhibitors directly to the coating formulation is also contemplated. However, such inhibitors often chemically intera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08
CPCB82Y30/00B82Y40/00C08J2339/00C08K5/3475C08K9/10C08K9/12C08K2201/011C09D4/00C09D4/06C09D5/086C09D133/14C09D139/00C09D7/62C09D7/63C08K9/08C08F120/40C09D5/002C09D129/14C09D133/04C09D179/02
Inventor 维卡斯·米塔尔吉沙·伊丽莎白·卢卡尚
Owner KHALIFA UNIV OF SCI & TECH
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