Effect of modified carbon black on the filler–elastomer interaction and dynamic mechanical properties of SBR vulcanizates

Abstract

ABSTRACT:A new modified carbon black (GCB) was prepared by adding special RFL latex into N220. Dynamic properties were obtained over a wide range of temperatures and strains on vulcanizates filled with GCB and unmodified carbon black, respectively. The results show that the GCB can effectively decrease the tan ␦ value at 60 and 90°C of SBR vulcanizates compared with that of the common unmodified carbon blacks, which responds to the fact that GCB is beneficial to lower rolling resistance and heat generation of the vulcanizates in comparison to that of the unmodified carbon black. Among the factors responsible for this, filler networking and filler-elastomer interaction play a dominant role. The effects of filler loading on mechanical properties of vulcanizates were also investigated.

Modified graphite filled natural rubber composites with good thermal conductivity

“…Because the acrylic ester contains functional groups of ester, carboxyl and hydroxyl, it has strong polarity, and thus has good adhesive properties with various substances. In addition, the acrylic emulsion bears good weather resistance, heat resistance and oil resistance, and it is non-toxic, easily synthetic, of non-environmental pollution and so on, and thus it is widely used [23][24][25]. If graphite particles are coated with polyacrylate in natural rubber, aggregation among the particles will be hindered for the reduction in potential energy of the surface.…”

Vulcanizate Structures of SBR Compounds with Silica and Carbon Black Binary Filler Systems at Different Curing Temperatures

“…The effects of CBBR/phr and SSRN/phr that contributed to the crosslink density per 1 phr of filler with increasing cure temperature on snow traction, wet traction, and rolling resistance (RR) in SBR vulcanizates with binary filler system are shown in Table 7 and Figure 9 . It is known that a lower tan δ at 60 °C is favorable for RR [ 32 , 33 ]. Curing at a high temperature (170 °C) resulted in a small increase in tan δ at 60 °C due to SSRN and showed a positive effect on RR.…”

Network Polydispersity and Deformation‐Induced Damage in Filled Elastomers

“…For example, surface modification of carbon black with organic functional groups or fatty acids or increasing the hydrogen content on the surface of carbon black is reported to moderately improve the tensile properties of filled SBR. [48][49][50][51] In case of silica particles, the interaction between fillers and polymer can be enhanced by formation of covalent bonds. The surface chemistry of silica particles is different from carbon black, primarily due to superficial hydroxyl and geminal silanol groups.…”