Metallised Plastic Film: Difference between revisions
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=Basics= | =Basics= | ||
*Plastic Film, that has had a metal coated on it by [[ | *Plastic Film, that has had a metal coated on it by some form of [[Vacuum Deposition]] | ||
*Is highly reflective, lighter/stronger than similar pure foils, and is a good insulator/seal | *Is highly reflective, lighter/stronger than similar pure foils, and is a good insulator/seal | ||
*Has many uses, but the largest stream is in packaging (Chip/Crisps Bags, Juice Boxes, Box Wine, Boxed Milk from Restraunts, etc) | |||
*Main issue is difficulty in recycling | *Main issue is difficulty in recycling | ||
*Also a good cantigate for [[Upcycling]] (see [[Terracycle]] ) | |||
=Recycling Methods== | =Recycling Methods= | ||
* | ==Chemical Removal of Metal, then Standard Plastic Workflow== | ||
*This uses washed (shredded?) film, it runs it into a reactor with an acid/solvent to dissolve the metal off the nonreactive film | |||
*Can also be done in a similar method (other step, can they be merged?) to remove ink from labels etc | |||
*[https://patents.google.com/patent/CN103909588A/en A Paper on This] (Used [[Sulphuric Acid]] ) | |||
==Pyrolysis== | |||
*Not really recycling (at least directly, can be made into new plastics), but it can be put in a [[Pyrolysis Kiln]] and the slag should be relitively pure metal | |||
=Internal Links= | =Internal Links= | ||
* | *[[BoPET]] | ||
=External Links= | =External Links= | ||
* | *[https://en.wikipedia.org/wiki/Metallised_film The Wikipedia Page on Metallised Plastic Film] | ||
*[https://www.ecoenclose.com/blog/this-common-packaging-is-a-recycling-nightmare/ An Article on the Subject] | |||
Latest revision as of 18:19, 17 July 2020
Basics
- Plastic Film, that has had a metal coated on it by some form of Vacuum Deposition
- Is highly reflective, lighter/stronger than similar pure foils, and is a good insulator/seal
- Has many uses, but the largest stream is in packaging (Chip/Crisps Bags, Juice Boxes, Box Wine, Boxed Milk from Restraunts, etc)
- Main issue is difficulty in recycling
- Also a good cantigate for Upcycling (see Terracycle )
Recycling Methods
Chemical Removal of Metal, then Standard Plastic Workflow
- This uses washed (shredded?) film, it runs it into a reactor with an acid/solvent to dissolve the metal off the nonreactive film
- Can also be done in a similar method (other step, can they be merged?) to remove ink from labels etc
- A Paper on This (Used Sulphuric Acid )
Pyrolysis
- Not really recycling (at least directly, can be made into new plastics), but it can be put in a Pyrolysis Kiln and the slag should be relitively pure metal