Redesigning the paper cup
Today’s paper cup is almost perfect. It does not leak, break or melt and it is cheap enough to mass produce. But there is one problem: hundreds of billions of discarded paper cups are piling up. They are lined with plastic and not easily recyclable. The application of petroleum-based derivatives (like waxes and polyethylene) as standard protective coatings is what makes the cups non-recyclable. The EU-funded BioPP project is developing an offline machine that adds a protective coating to paper and cardboard making it not only fully recyclable but also 100 % resistant to water. The new process to produce the paper lining is a simple, rapid and efficient hydrophobisation of cellulose fibres through their reaction with gaseous trichloromethylsilane in mild conditions.
Field of science
- /engineering and technology/materials engineering/coating and films
Call for proposal
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