The effect of silane coupling agent (Si-69) on thermoxidative stability of butyl rubber compounds

1995 ◽  
Vol 30 (16) ◽  
pp. 4112-4114 ◽  
Author(s):  
A. Adhikary ◽  
R. Mukhopadhyay ◽  
A. S. Deuri
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Butyl Rubber ◽  
Rubber Compounds ◽  
Silane Coupling

scholarly journals Effect of Sulfur Variation on the Vulcanizate Structure of Silica-Filled Styrene-Butadiene Rubber Compounds with a Sulfide–Silane Coupling Agent

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2815
Author(s):  
Sangwook Han ◽  
Bonyoung Gu ◽  
Sungwoo Kim ◽  
Seongrae Kim ◽  
Dalyong Mun ◽  
...  
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Influencing Factor ◽  
Coupling Efficiency ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Compounds ◽  
Silane Coupling ◽  
Silica Dispersion ◽  
Styrene Butadiene

The vulcanizate structure of filled compounds is affected by filler–rubber interactions (FRI) and the chemical crosslink density (CCD) of the matrix rubber. In particular, in filled compounds using a silica–silane system, FRIs due to silica–rubber coupling are a major influencing factor for the vulcanizate structure and physical properties. In this study, the effect of sulfur variation on the vulcanizate structure of silica-filled solution styrene–butadiene rubber compounds using a sulfide–silane coupling agent was studied. The vulcanizate structure according to sulfur variation was quantitatively analyzed using the swelling test and Flory–Rehner and Kraus equations. As the sulfur content increased, both FRI and the CCD increased, and it was confirmed that sulfur variation influenced the silica–rubber coupling efficiency through increased FRI. In addition, field emission scanning electron microscope images showed that increased FRI contributed to improvements in silica dispersion, abrasion resistance, and energy loss characteristics.

Optimization of Epoxidation Degree and Silane Coupling Agent Content for Silica-Filled Epoxidized Natural Rubber Tire Tread Compounds

2013 ◽  
Vol 844 ◽  
pp. 243-246 ◽  
Author(s):  
Wisut Kaewsakul ◽  
Kannika Sahakaro ◽  
Wilma Dierkes ◽  
Jacques W.M. Noordermeer
Keyword(s):  
Natural Rubber ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Silica Content ◽  
Epoxidized Natural Rubber ◽  
Rubber Tire ◽  
Rubber Compounds ◽  
Silane Coupling ◽  
Reinforcement Efficiency

Parallel studies on the influence of epoxide contents in epoxidized natural rubbers (ENRs) in the absence of bis-(triethoxysilylpropyl) tetrasulfide (TESPT) coupling agent, as well as a combination of ENRs with different loadings of TESPT on the properties of ENR compounds, are carried out in this work. The results suggests that the best possible combination to optimize processibility and to improve reinforcement efficiency is to utilize ENR with an epoxide content in the range of 20 30 mol%, together with 2 4 wt% relative to the silica content of TESPT. This leads to a reduction of TESPT when compared to the conventional natural rubber compounds.

scholarly journals Comparison between SBR Compounds Filled with In-Situ and Ex-Situ Silanized Silica

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 281
Author(s):  
Pilar Bernal-Ortega ◽  
Rafal Anyszka ◽  
Yoshihiro Morishita ◽  
Raffaele di Ronza ◽  
Anke Blume
Keyword(s):  
Carbon Black ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Silica Surface ◽  
Ex Situ ◽  
Rubber Compounds ◽  
Silane Coupling ◽  
Silanized Silica

The main advantages of the use of silica instead of carbon black in rubber compounds are based on the use of a silane coupling agent. The use of a coupling agent to modify the silica surface improves the compatibility between the silica and the rubber. There are two different possibilities of modifying the silica surface by silane: ex-situ and in-situ. The present work studies the differences between these processes and how they affect the in-rubber properties of silica filled SBR compounds.

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