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Beneficial role of “sol–gel” synthesized mesoscale silica networks on the performance of liquid silicone elastomer
Author(s) -
Saxena Anubhav,
Dasgupta Debarshi,
Bhat Shreedhar,
Tiwari Sandip,
Samantara Laxmi,
Wrobel Dieter
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40125
Subject(s) - materials science , elastomer , rheology , silicone , dynamic mechanical analysis , nanocomposite , curing (chemistry) , composite material , ultimate tensile strength , silicone rubber , sol gel , natural rubber , colloid , colloidal silica , modulus , chemical engineering , polymer , nanotechnology , coating , engineering
This piece of contribution highlights the profound effect of unique mesoscale morphology of tailor made nanosilica assembly (SS‐Silica), synthesized by sol–gel route, on the mechanical and dynamic rheological properties of platinum catalyzed addition‐cured silicone elastomers. While commercial colloidal nanosilica (CS Silica) is used as the control nanofiller representing particulate morphology, the tailor‐made SS‐Silica having highly percolated network structure offers 10‐fold increase in storage modulus of the uncured reactive PDMS precursor nanocomposite with stable dynamic rheological behavior and more than 180% enhancement in tensile strength of resulting liquid silicone rubber (LSR) produced on curing, as compared to colloidal silica of commercial origin. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40125.