An introduction to composites recycling

This chapter discusses the broad spectrum of physical attributes and mechanical properties of the entire family of polymer composites, which make some an inherently viable recycling proposition whilst leaving others consigned to landfill. All common material types are covered, from the high value speciality polymer matrices such as polyetheretherketone (PEEK) and carbon reinforcements, through to commodity materials such as polypropylene (PP) and glass. The question of what makes a material 'recyclable' is considered in terms of ease of recovery, practicalities of the recycling process itself and, importantly, the demand for the resultant recyclate material effectively, the economics behind recycling these materials. This question inevitably covers some of the existing legislation that drives the economic argument. The effect of parameters such as raw material format, subsequent material processing, resultant reinforcement architecture and in-service usage all have on the economic viability are considered