Behn Meyer_Bertrand_

Rolling Resistance of TBR Tires

NR-Silica-Masterbatches – The easy Processing Way to High Quality Compounds

Growing requirements of higher fuel economy increase the pressure on producers of TBR tires to use silica as a filler in Natural Rubber compounds. Currently this seems to be the silver bullet to further reduce Rolling Resistance without compromise in Skid and Wear. High quality Natural Rubber compounds filled with Silica and Silane in high […] more...

February 12. 2018 - Research news


Vulcanization of silica-filled car tread compounds

Rhenocure DR – A New Secondary Accelerator for Rubber

Diphenyl guanidine (DPG) is the most used secondary accelerator in silica filled passenger car tread compounds Beside its function as secondary accelerator DPG acts in this application also as a processing aid. A problem accompanied with DPG is that it releases carcinogenic aniline during the vulcanization process. Several solutions are available to replace DPG like […] more...

February 7. 2018 - Research news

Dr. Volker Börger_

Vamac, HP Zetpol, HT-ACM

The Use of New Additives in the Processing of White And Black Filled Compounds Based On The Diamine Crosslinking System

The benefits of a new additive range for use in diamine crosslinked polymers from Schill+Seilacher “Struktol” GmbH are demonstrated. Rubber Compounds were mixed based on AEM (Vamac) – and HNBR (HP Zetpol) polymers. Struktol HT 740, Struktol HT 750 or Struktol HT 760 demonstrated different activity levels towards the surface of active white fillers and […] more...

June 9. 2017 - Research news

Ulrich Giese

Damping behavior

Influence of Water on Dynamic Mechanical Properties of Silica Loaded Tire Tread Vulcanizates

The damping behavior of silica-loaded vulcanizates is significantly affected by the amount of absorbed water. It results in the formation of a new tan δ peak around -5 ~ 0 °C and an increase of the loss modulus G’’, which can be taken as an indicator for the improvement of wet skid resistance. By the […] more...

April 10. 2017 - Research news

Additives & Fillers

Influence of Silica-Polymer Bond Microstructure on Tire-Performance Indicators

Changes in the coupling agent structure in a silica-silane filler system lead to alterations of the microstructure of the silica-polymer interface and determine the dynamic properties, thus wet skid resistance (WSR) and rolling resistance (RR) of a tire tread. more...

April 16. 2015 - Research news

Additives & Fillers

Effect of Silica on the Performance of Natural Rubber/Poly (Vinyl Alcohol) and Starch Blend Films

The preparation of biodegradable polymer blend was made from natural rubber (NR) latex, starch solution and poly (vinyl alcohol) (PVA) solution by a latex-solution casting method. The swelling ratio of the polymer blend dramatically decreased as a function of silica content and NR content. more...

February 12. 2015 - Research news


Effects of TESPT loading and mixing Condition on Properties of Silica-filled HNBR cured with Peroxide: Correlation of Bound Rubber Content, viscoelastic and mechanical Properties

Two different mixing conditions, i.e., normal condition (low mixing temperature/short mixing time) and extreme condition (high mixing temperature/ long mixing time), were employed for sample preparation. It was found that mixing at the extreme condition yielded significantly increased rubber-filler interaction. more...

February 12. 2015 - Research news

Additives & Fillers

Influence of physical and chemical Polymer-Filler Bonds on Tire Wet-Traction Performance Indicators for Passenger Car Tire Tread Materials

The rubber compound used for a tire tread is a composite material of which the dynamic properties can be adjusted over a relatively broad range by modification of the polymer-filler interaction. For silica-reinforced compounds, control over the polymer-filler interaction is realized by chemical coupling of the silica to the rubber by different silane coupling agents. more...

August 12. 2014 - Research news


Optimization of Mixing Conditions for TESPT Silane Treatment in Silica-filled NBR System: Correlation of Bound Rubber Content to viscoelastic and mechanical Properties

Nitrile rubber (NBR) filled with precipitated silica (PSi) was prepared with an addition of bis-(triethoxysilylpropyl)-tetrasulfide (TESPT) under various mixing conditions. As a highlight of this work, the peroxide crosslinking was employed instead of conventional sulfur vulcanization in products requiring enhanced thermal aging resistance. more...

June 25. 2014 - Research news

Silica-to-rubber interaction

Effect of a Silane Coupling Agent on the Morphology of Silica Reinforced Natural Rubber

Filler-to-rubber interaction is a key parameter in reinforcement of rubber. This paper presents an investigation into the morphology of silica-reinforced Natural Rubber (NR) in presence and absence of a silane coupling agent, bis(triethoxysilylpropyl) tetrasulfide (TESPT). more...

March 18. 2014 - Research news