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51315-5575-Improved Packaging—Barrier Coated Paper Incorporating Vapor Phase Corrosion Inhibitors

Product Number: 51315-5575-SG
ISBN: 5575 2015 CP
Author: Robert Kean
Publication Date: 2015
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$20.00
$20.00
Vapor-phase Corrosion Inhibitors (VCIs) are used for safe and cost-effective protection of a wide range of metal articles. One large market includes packaging materials for storage and transportation of metal parts. Cellulose based materials (paper and fiber board) are desirable packaging materials due to cost material properties and environmental attributes (bio-based content recyclability) and these materials can be easily impregnated with VCI’s to provide corrosion protection. However uses of these materials can be limited by the water affinity of paper/fiber board; and the highly porous nature which allow rapid depletion of the VCIs and exposure of the metal to corrosive elements in the surrounding atmosphere. The barrier properties of paper products can be greatly improved with wax or polyethylene coating but such products are no longer suitable for recycling. Emulsion based coating product have also been used to improve the barrier properties of paper products. Unfortunately many of these also reduce suitability for recycling. Some require multiple coats to achiever high barrier properties which significantly raises the product cost.This paper presents studies with repulpable barrier coating technologies that are water-borne and applied in a single coating pass. When combined with VCI’s these provided recyclable packaging materials with excellent barrier properties and cost effective corrosion protection.Keywords: Vapor corrosion inhibitor barrier packaging recyclable coating
Vapor-phase Corrosion Inhibitors (VCIs) are used for safe and cost-effective protection of a wide range of metal articles. One large market includes packaging materials for storage and transportation of metal parts. Cellulose based materials (paper and fiber board) are desirable packaging materials due to cost material properties and environmental attributes (bio-based content recyclability) and these materials can be easily impregnated with VCI’s to provide corrosion protection. However uses of these materials can be limited by the water affinity of paper/fiber board; and the highly porous nature which allow rapid depletion of the VCIs and exposure of the metal to corrosive elements in the surrounding atmosphere. The barrier properties of paper products can be greatly improved with wax or polyethylene coating but such products are no longer suitable for recycling. Emulsion based coating product have also been used to improve the barrier properties of paper products. Unfortunately many of these also reduce suitability for recycling. Some require multiple coats to achiever high barrier properties which significantly raises the product cost.This paper presents studies with repulpable barrier coating technologies that are water-borne and applied in a single coating pass. When combined with VCI’s these provided recyclable packaging materials with excellent barrier properties and cost effective corrosion protection.Keywords: Vapor corrosion inhibitor barrier packaging recyclable coating
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