Flocculation, Reinforcement, and Glass Transition Effects in Silica-filled Styrene-butadiene Rubber

Content Provider	Semantic Scholar
Author	Robertson, Christopher G. Lin, Chih Jung Bogoslovov, Radoslav B. Rackaitis, Mindaugas Sadhukhan, Priyabrata Quinn, Julianne D. Roland, Charles M.
Copyright Year	2011
Abstract	Abstract The introduction of silanes to improve processability and properties of silica-reinforced rubber compounds is critical to the successful commercial use of silica as a filler in tires and other applications. The use of silanes to promote polymer–filler interactions is expected to limit the development of a percolated filler network and may also affect the mobility of polymer chains near the particles. Styrene-butadiene rubber (SBR) was reinforced with silica particles at a filler volume fraction of 0.19, and various levels of filler–filler shielding agent (n-octyltriethoxysilane) and polymer–filler coupling agent (3-mercaptopropyltrimethoxysilane) were incorporated. Both types of silane inhibited the filler flocculation process during annealing the uncured rubber materials, thus reducing the magnitude of the Payne effect. In contrast to the significant reinforcement effects noted in the strain-dependent shear modulus, the bulk modulus from hydrostatic compression was largely unaltered by the silan...
Starting Page	507
Ending Page	519
Page Count	13
File Format	PDF HTM / HTML
DOI	10.5254/1.3601885
Volume Number	84
Alternate Webpage(s)	http://polymerphysics.net/pdf/RubChemTech_84_508_2011.pdf
Alternate Webpage(s)	https://doi.org/10.5254/1.3601885
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article