Determination of the Mechanical Properties of Rubber by FT-NIR

Table 1

Percentage of constituents in the reinforced sample materials.

NR		SBR		NBR		EPDM		NR+NBR		NR+EPDM
Constituents	phr	Constituents	phr	Constituents	phr	Constituents	phr	Constituents	phr	Constituents	phr
NR (raw)	100	SBR (raw)	100	NBR (raw)	100	EPDM (raw)	100	NR (raw)	80	NR (raw)	80
								NBR (raw)	20	EPDM (raw)	20
ZnO	5	ZnO	5	ZnO	5	ZnO	5	ZnO	5	ZnO	5
Stearic acid	2	Stearic acid	2	Stearic acid	2	Stearic acid	2	Stearic acid	2	Stearic acid	2
MBTS	1.5	MBTS	2	MBTS	1.5	MBTS	1.5	Sulfur	0.5	Sulfur	0.5
TMTD	0.5	TMTD	0.5	TMTD	0.5	TMTD	0.5	MBTS	1.5	MBTS	1.5
Sulfur	2.5	Sulfur	2.5	Sulfur	2.5	Sulfur	2.5	TMTD	0.5	TMTD	0.5
Carbon black	50	Carbon black	50	Carbon black	50	Carbon black	50	Carbon black	50	Carbon black	50

phr: part per hundred in rubber; MBTS: 2,2-dibenzothiazyl disulfide; TMTD: tetramethylthiuram disulfide; ZnO: zinc oxide.