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

Table 2

Codes of prepared PURF nanocomposites.

Synthesized polyol (%)	100	100	100	100	100
PNP (%)	—	2.5	5	—	—
m-PNP (%)	—	—	—	2.5	5
PURF code	PU-S4	PU-S4-1	PU-S4-2	PU-S4-3	PU-S4-4