Thermal Response and Degressive Reaction Study of Oxo-Biodegradable Plastic Products Exposed to Various Degradation Media

Table 5

Summary of apparent activation energy (, kJ mol^-1) values estimated from the various methods in this work.

Methods	Type I	Type II	Type III
Pre-exposure
Friedman	225.30	225.60	224.69
Kissinger	225.36	226.90	226.51
Flynn-Wall-Ozawa	103.75	103.77	103.83
Accelerated weathering
Friedman	225.21	225.39	224.07
Kissinger	227.15	226.90	225.96
Flynn-Wall-Ozawa	103.89	103.70	103.77
Soil burial
Friedman	184.68	185.57	171.63
Kissinger	151.95	184.18	177.68
Flynn-Wall-Ozawa	86.64	89.38	86.97