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51316-7100-Improving the Controlled Humidity Protection Systems by Addition of Vapor Phase Corrosion Inhibitors

Picture for Improving the Controlled Humidity Protection Systems by Addition of Vapor Phase Corrosion Inhibitors
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  Controlled Humidity Protection (CHP) reduces corrosion d/t high relative humidity (exceeding 40%). Addition of the vapor phase corrosion inhibitors to the CHP provide a more effective corrosion protection. A dry air system can will not be able to prevent corrosion.

Product Number: 51316-7100-SG
ISBN: 7100 2016 CP
Author: Behzad Bavarian
Publication Date: 2016
Industry: Corrosion Monitoring and Control
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$20.00
$20.00

Controlled Humidity Protection (CHP) reduces corrosion created by exposing items to high relative humidity (exceeding 40%) that is prevalent throughout the world. Although controlled humidity protection systems in theory can suppress the cathodic reaction and lower the corrosion rate in reality the amount of moisture and oxygen that is required to initiate the corrosion reaction for steel is extremely low and once corrosion reaction starts there is no defense mechanism to stop it. Addition of the vapor phase corrosion inhibitors to the CHP provide a more effective corrosion protection for materials exposed to the environment during short term storage. A dry air controlled humidity system can reduce the moisture level but it will not be able to prevent corrosion. The advantage of the vapor phase corrosion inhibitor is the creation of a strong physisorption to the material surface that minimizes any surface contact with corrosive species due to its hydrophobic film. Therefore vapor phase corrosion inhibitors addition have superior advantages over the controlled humidity protection system in the presence of aggressive environments that contain excessive salt oxygen and moisture.

Keywords: downloadable, atmospheric corrosion, corrosion inhibitor, Controlled humidity protection, Vapor phase corrosion inhibitors, adsorption model

Controlled Humidity Protection (CHP) reduces corrosion created by exposing items to high relative humidity (exceeding 40%) that is prevalent throughout the world. Although controlled humidity protection systems in theory can suppress the cathodic reaction and lower the corrosion rate in reality the amount of moisture and oxygen that is required to initiate the corrosion reaction for steel is extremely low and once corrosion reaction starts there is no defense mechanism to stop it. Addition of the vapor phase corrosion inhibitors to the CHP provide a more effective corrosion protection for materials exposed to the environment during short term storage. A dry air controlled humidity system can reduce the moisture level but it will not be able to prevent corrosion. The advantage of the vapor phase corrosion inhibitor is the creation of a strong physisorption to the material surface that minimizes any surface contact with corrosive species due to its hydrophobic film. Therefore vapor phase corrosion inhibitors addition have superior advantages over the controlled humidity protection system in the presence of aggressive environments that contain excessive salt oxygen and moisture.

Keywords: downloadable, atmospheric corrosion, corrosion inhibitor, Controlled humidity protection, Vapor phase corrosion inhibitors, adsorption model

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