2134/23764
Farhan Saeed
Farhan
Saeed
Ali Ansarifar
Ali
Ansarifar
Robert J. Ellis
Robert J.
Ellis
Yared Haile-Meskel
Yared
Haile-Meskel
M. Shafiq Irfan
M. Shafiq
Irfan
Two advanced styrene-butadiene/polybutadiene rubber blends filled with a silanized silica nanofiller for potential use in passenger car tire tread compound
Loughborough University
2017
Rubber
Blends
Silicas
Crosslinking
Mechanical properties
Materials Engineering not elsewhere classified
2017-01-18 12:22:03
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Two_advanced_styrene-butadiene_polybutadiene_rubber_blends_filled_with_a_silanized_silica_nanofiller_for_potential_use_in_passenger_car_tire_tread_compound/9235325
Styrene-butadiene rubber (SBR) and poly-
butadiene rubber (BR) were mixed together (75:25 by
mass) to produce two SBR/BR blends. The blends were re-
inforced with a precipitated amorphous white silica nano-
filler the surfaces of which were pretreated with bis(3-
triethoxysilylpropyl)-tetrasulfide (TESPT). TESPT is a sul-
fur-bearing bifunctional organosilane that chemically
bonds silica to rubber. The rubbers were primarily cured
by using sulfur in TESPT and the cure was optimized by
adding non-sulfur donor and sulfur donor accelerators
and zinc oxide. The hardness, Young’s modulus, modulus
at different strain amplitudes, tensile strength, elongation
at break, stored energy density at break, tear strength,
cyclic fatigue life, heat build-up, abrasion resistance, glass
transition temperature, bound rubber and tan d of the
cured blends were measured. The blend which was cured
with the non-sulfur donor accelerator and zinc oxide had
superior tensile strength, elongation at break, stored
energy density at break and modulus at different strain
amplitudes. It also possessed a lower heat build-up, a
higher abrasion resistance and a higher tan d at low tem-
peratures to obtain high-skid resistance and ice and wet-
grip. Optimizing the chemical bonding between the rubber
and filler reduced the amount of the chemical curatives by
approximately 58% by weight for passenger car tire tread.
This helped to improve health and safety at work and
reduce damage to the environment.