Effects of Thermal and Humidity Aging on the Interfacial Adhesion of Polyketone Fiber Reinforced Natural Rubber Composites

Table 5

Chemical composition of the polyketone/NR composite as thermal aging and humidity aging.

Surface treatment		Chemical composition (%)		Atomic ratio
		C	O	O/C
Raw		82.77	17.23	0.208
Thermal aging	105°C (8 days)	79.19	20.81	0.262
	125°C (8 days)	77.74	22.26	0.286
	180°C (2 days)	74.87	25.13	0.335
	180°C (8 days)	74.44	25.56	0.343
Humidity aging	99% (500 h)	83.86	16.14	0.192