Table 2. Formulation for Regenerated PU Foams Based on Recovered Polyol Solution

Material Parts by Weight* Purpose
Polyol Premix GPX-6000 70 Main Polyol
POP-6040 30 Copolymer Polyol
GEX-3300 2.0 Cell Opener
L-3002 0.4 Silicone surfactant
L-5309 0.2 Silicone surfactant
ETF 0.15 Blowing Catalyst
Dabco 33LV 0.5 Gelling Catalyst
1,4 Butylene Glycol 0.2 Chain Extender
Diethanolamine (DEA) 0.5 Crosslinking Agent
Water 3.8 Blowing Agent
Isocyanate KI-2000 53.9 NCO 35.0~36.0%
The total polyol set at 100 parts by weight.