Preparation and Characterization of Polyurethane Rigid Foam Nanocomposites from Used Cooking Oil and Perlite

Table 1

Codes of PURFs from commercial polyol and novel polyol with different ratios.

Commercial polyol (%)	100	60	40	0
Synthesized polyol (%)	0	40	60	100
PURF code	PU-S1	PU-S2	PU-S3	PU-S4