Archive
Tag: Fibre-based Packaging
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Can paper block electromagnetic interference? Only if you stop it reflecting
Every powered device emits electromagnetic energy and is vulnerable to it, and shielding is a regulatory requirement. Cellulose shields nothing on its own, but its porosity enables absorption-dominant shielding that…
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Molecular Velcro: how the wood cell wall yields without weakening
A tree bends far past the point where an engineering material would be permanently damaged, then stands up again. The explanation is a stick–slip mechanism inside the cell wall: weak…
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Lignin: the polymer built without a blueprint
Lignin is the second most abundant biopolymer on Earth and the matrix that allows trees to stand upright. Unusually among biological macromolecules, it is assembled without a genetic template, and…