1 research outputs found
Steam Pyrolysis of Polyimides: Effects of Steam on Raw Material Recovery
Aromatic
polyimides (PIs) have excellent thermal stability, which
makes them difficult to recycle, and an effective way to recycle PIs
has not yet been established. In this work, steam pyrolysis of the
aromatic PI Kapton was performed to investigate the recovery of useful
raw materials. Steam pyrolysis significantly enhanced the gasification
of Kapton at 900 °C, resulting in 1963.1 mL g<sup>–1</sup> of a H<sub>2</sub> and CO rich gas. Simultaneously, highly porous
activated carbon with a high BET surface area was recovered. Steam
pyrolysis increased the presence of polar functional groups on the
carbon surface. Thus, it was concluded that steam pyrolysis shows
great promise as a recycling technique for the recovery of useful
synthetic gases and activated carbon from PIs without the need for
catalysts and organic solvents