Properties of SBR/NR Blend: The Effects of Carbon Black/Silica (CB/SiO2) Hybrid Filler and Silane Coupling Agent

In the current research, investigation of natural rubber (NR)/styrene butadiene rubber (SBR) blend reinforced with carbon black (CB)/silica (SiO 2 ) and with and without silane coupling agent (SCA) was analyzed. The total hybrid filler (CB/SiO 2 ) concentration in the composite was fixed at 50 phr....

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Bibliographic Details
Published in:SILICON 2022-09, Vol.14 (14), p.9051-9060
Main Authors: Anand, G., Vishvanathperumal, S.
Format: Article
Language:English
Subjects:
Carbon
Carbon black
Chemistry
Chemistry and Materials Science
Composite materials
Coupling agents
Elongation
Environmental Chemistry
Fillers
Inorganic Chemistry
Lasers
Materials Science
Mechanical properties
Natural rubber
Optical Devices
Optics
Optimization
Original Paper
Photonics
Polymer Sciences
Silanes
Silicon dioxide
Tensile strength
Torque
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Summary:In the current research, investigation of natural rubber (NR)/styrene butadiene rubber (SBR) blend reinforced with carbon black (CB)/silica (SiO 2 ) and with and without silane coupling agent (SCA) was analyzed. The total hybrid filler (CB/SiO 2 ) concentration in the composite was fixed at 50 phr. Cure characteristics, mechanical properties and surface morphology were examined. The results revealed that as the SiO 2 content increase, the optimum cure time, scorch time, minimum torque, and maximum torque of NR/SBR-CB/SiO 2 composites with and without SCA increased. Except for maximum torque, the optimal cure time and minimum torque of NR/SBR-CB/SiO 2 composites with SCA were lower than those without SCA. Compared with NR/SBR composites with SCA, addition of 0/50 CB/SiO 2 resulted in 53% decrease of tensile strength and 81% increase of elongation at break, superior to that of NR/SBR composites without SCA. The results revealed that as the SiO 2 content increase, the optimum cure time, scorch time, minimal torque, and maximum torque of NR/SBR-CB/SiO 2 composites with and without SCA increased. Except for maximum torque, the optimal cure time and minimum torque of NR/SBR-CB/SiO 2 composites with SCA were lower than those without SCA.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-022-01675-x