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Issue 06/2016

  • Text
  • Bioplastics
  • Packaging
  • Biobased
  • Products
  • Materials
  • Plastics
  • Biodegradable
  • Films
  • Renewable
  • Certification


Films/Flexibles/Bags Innovative biodegradable packaging for corrosion protection Cortec Corporation has long sought to be at the vanguard of producing environmentally friendly corrosion protection solutions. With rust and corrosion remaining a never-ending menace to practically any industry involving metal, the need is great for protecting in-process and finished metal goods during storage or shipping. With increasing environmental regulations and concerns, there is also a growing need for providing corrosion solutions that are biobased or biodegradable. Cortec has addressed these concerns by developing Eco- Corr Film, a biodegradable corrosion protection packaging solution with formulations containing up to 40 % biobased content. This is the first and only biodegradable film providing contact, barrier, and vapor corrosion inhibition, expanding options for users who have already benefited from the significant advantages of VpCI (Vapor phase Corrosion Inhibitor) film packaging. Eco-Corr contains Cortec’s VpCI technology embedded in biodegradable film. This technology works by releasing VpCI molecules from Eco-Corr Film into the enclosed space inside the film packaging. The molecules condense on metal surfaces of parts or equipment packaged inside the film, forming a protective monomolecular barrier against corrosive environments such as high humidity and chlorides, and also protecting against dissimilar metal corrosion. Because of their vapor ability, VpCI molecules are able to migrate throughout the enclosed space to protect hard to reach interior surfaces. The film also provides excellent contact and barrier protection on exterior surfaces and is good for both ferrous and non-ferrous metals. It meets NACE TM0208-2008 and German TL-8135-002 standards for corrosion protection. The film can be custom formulated to range from highly elastic to semi-rigid. EcoCorr ESD VpCI film in its basic form has been a dynamic corrosion protection solution around the world, providing versatility and ease of use in protecting metal parts. It provides dry corrosion protection and eliminates the need to use additional rust preventatives that would require cleaning and degreasing by the end user. With the development of Eco-Corr, a biodegradable form of highly practical VpCI film can be fashioned into a range of bags, tubes, and sheeting to fit the custom needs of the application. Manufacturers can package their metal parts, such as gears or engines, in bags or shrouds to protect them from corrosion during shipping, a typically vulnerable time for metal parts. This is important as claims for parts corroded during domestic or overseas shipping are not only expensive but can damage the supplier’s reputation and relationship with the customer. An ESD (electrostatic dissipative) version of the film is also available for biodegradable packaging of sensitive electronics. Another valuable use for VpCI film is to protect parts in storage. If manufacturers need to store parts between processing steps, one option is to line a container with Eco-Corr film, place the partially finished goods inside, and enclose them in the film until they must be taken out for the next step in the process. Even industries not involved in the production or shipment of metal parts can benefit by wrapping metal equipment with VpCI film while the pieces are in storage or layup. This guards against the unpleasant surprise of finding components rusty or corroded when it is time to put the equipment back into commission. The film successfully passes the tests for disintegration and biodegradation in an aerobic composting environment per ASTM D6400-12. After the film has been used, it can be composted in a commercial composting environment. Under typical conditions in this setting, it will fully compost within approximately two to three months. However, the film is shelf stable and does not disintegrate until particular composting conditions are experienced. In the meantime, users can enjoy the effective protection of VpCI in a biodegradable, biobased format. Acknowledgement: Special thanks for the assistance of Robert Kean PhD, Eric Uutala, and John Wulterkens of Cortec Laboratories and Cortec Technical Services. MT 16 bioplastics MAGAZINE [06/16] Vol. 11

Films/Flexibles/Bags bioplastics MAGAZINE [06/16] Vol. 11 17

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