An Eco-Friendly Cellulose-Based Adhesive | AIChE

An Eco-Friendly Cellulose-Based Adhesive


Chemical engineers at Aalto Univ. in Finland have created an eco-friendly, sustainable adhesive based on plant-derived cellulose nanocrystals (CNCs). Thanks to the CNCs, the adhesive is extremely strong — at the nanoscale, these crystals have strength comparable to that of steel.

Cellulose is the most abundant polymer on the planet and a renewable resource. CNCs are derived from cellulose that is extracted from structural elements in trees and other plants.

To make the glue, the engineers suspended CNCs having an average length of 134 nm and width of 9 nm in water. They then sandwiched these suspensions between various substrates, such as glass, wood, and paper...

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