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International Journal of Interdisciplinary Research

Table 1 Minimum requirements for PET flakes to be reprocessed (Awaja and Pavel2005; Miller2002; Pawlak et al. 2000)

From: Poly (ethylene terephthalate) recycling for high value added textiles

Properties Values
Intrinsic viscosity > 0.7 (dlg−1)
Melting temperature > 240 (°C)
Water content < 0.02 wt%
Flake size 0.4 mm < suitable value < 8 mm
Dye content < 10 ppm
Yellow index < 20
Metal content < 3 ppm
Polyvinyl chloride content < 50 ppm
Polyolefin content < 10 ppm