Effect of Lanthanum Cerium Cysteine on Cure Characteristics, Mechanical Properties, and Thermooxidative Aging for Natural Rubber

Table 1

Formulation of NR composites with different amounts of LC-Cys (phr).

Ingredient	Sample
	1	2	3	4	5
NR	100	100	100	100	100
ZnO	5	5	5	4	3
St.A.	4	4	4	4	4
Sulfur	2.3	2.3	2.3	2.3	2.3
MBT	0.3	0.3	0.3	0.3	0.3
MBTS	1.6	1.6	1.6	1.6	1.6
LC-Cys	0	1	2	1	2