4. Fate of non-metallic fractions

The nature of the materials used to manufacture electronic boards depends on their application. Two commonly encountered compositions are fiberglass reinforced with epoxy resin, and cellulose paper reinforced with phenolic resin.

Xu's group describes the preparation of a plate from the non-metallic residues from printed circuit boards . First, the electronic boards are crushed, then the copper fraction contained is separated by electrostatic...