Biodegradation Study of Nanocomposites of Phenol Novolac Epoxy/Unsaturated Polyester Resin/Egg Shell Nanoparticles Using Natural Polymers

Table 1

The mechanical and chemical properties of polyester.

Properties	Value
The gelation time for 0.5 weight percent of CO and 2 weight percent of methyl ethyl ketone peroxide	10–15 (min)
The hardness time after gel formation	8–15 (min)
The hardness temperature	190°C
Solid percent	64 ± 2%
Viscosity at 25°C	600–450 (cp)
Acid number	18–24 (mgKOH/g)