where, M 0 is the torque value at the initial curing, M t the torque value
corresponding to the time t and M 1 is the torque value at infinite time (at the end
of the curing reaction). It is noteworthy to mention that the above mathematical
expression is based on the fact that the crosslinking density is proportional to the
stiffness of the rubber materials.
Guo et al. has shown the interfacial interaction in the nanocomposites between
carboxylated SBR and halloysite nanotube (HNT) [106]. Lower content of HNT
tends to impediment the vulcanization of SBR/HNT compounds, while higher HNT
loading promotes the vulcanization presumably due to polar interactions. It is
noteworthy to mention that HNT are dispersed uniformly in the matrix with strong
interfacial bonding between SBR and HNT.
–50
50
100
150
Temperature,ºC
0
–100
0.04
0.08
0.12
0.16
0.20
1×10 5
2×10
5
1.50×10 7
3.00×10
7
4.50×10
7
0.00
E; MPa
tan delta
E; MPa
0
Fig. 8 Dynamic mechanical properties of NR composite at 10 Hz [103]
28
K.K. Jana et al.
corresponding to the time t and M 1 is the torque value at infinite time (at the end
of the curing reaction). It is noteworthy to mention that the above mathematical
expression is based on the fact that the crosslinking density is proportional to the
stiffness of the rubber materials.
Guo et al. has shown the interfacial interaction in the nanocomposites between
carboxylated SBR and halloysite nanotube (HNT) [106]. Lower content of HNT
tends to impediment the vulcanization of SBR/HNT compounds, while higher HNT
loading promotes the vulcanization presumably due to polar interactions. It is
noteworthy to mention that HNT are dispersed uniformly in the matrix with strong
interfacial bonding between SBR and HNT.
–50
50
100
150
Temperature,ºC
0
–100
0.04
0.08
0.12
0.16
0.20
1×10 5
2×10
5
1.50×10 7
3.00×10
7
4.50×10
7
0.00
E; MPa
tan delta
E; MPa
0
Fig. 8 Dynamic mechanical properties of NR composite at 10 Hz [103]
28
K.K. Jana et al.