Processing Influences of Additives on a Silica Filled Tread

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Emery Francis
5 years ago
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com Processing Influences of Additives on a Silica Filled Tread by: John Vander Kooi

1 Producers of Specialty Chemicals Struktol Company of America E. Steels Corners Road P. O. Box Stow, Ohio - Processing Influences of Additives on a Silica Filled Tread by: John Vander Kooi Struktol Company of America presented at: ITEC Akron, Ohio Page of Phone: () - Fax: () - Technical Services: customerservice@struktol.com

2 Objective Green tire tread Examine Silica influence Additive addition point Influence of zinc soap Mixing Processing Physicals BANBURY ml -% fill factor pass mix Addition variable, either st pass or nd Page of

3 EXTRUDER Brabender mm - - compression screw Garvey die Triangle die zones at C Additive Variations Struktol EF A soap blend DP C Zn.% Struktol JV F (exp. Mixed surfactant) DP ~C Zn.% Page of

4 FORMULATION Duradene. Taktene Ultrasil GR N SCA CB. (TESPT-%) Sundex Formulation Addition point Wax. st or nd Stearic acid. st or nd PPD. st or nd EF A or st or nd F or st or nd ZnO. nd Sulfur. CBS. DPG. Page of

5 Mix Data Silica phr; No additive; First pass Mix Data Silica phr; No additive; First pass Mix Data Silica phr; No additive; First pass Page of

6 Control EFA Control Temp EFA Temp Mix Data - First Pass Silica phr; EFA in st pass (blue) Mix Data - First Pass Control EFA Control Temp EFA Temp Silica phr; EFA in st pass Mix Data - First Pass Control EFA Control Temp EFA Temp Silica phr; EFA in st pass Page of

7 Mix Data Red Control Blue EF A Silica phr; Additive in nd pass nd pass Mix Data Silica phr; Additive in nd pass Mix Data Silica phr; Additive in nd pass Page of

8 Mix Data - Second Pass Control EFA Control Temp EFA Temp Control EFA Control Temp EFA Temp Mix Data - Second Pass Silica phr; EFA in st pass Silica phr; EFA in st pass nd pass Mix Data - Second Pass Control EFA Control Temp EFA Temp Silica phr; EFA in st pass Page of

9 Mooney Viscosity silica Blank nd EFA nd F nd Blank st EFA st F st Initial days ML+ Ml+ Initial Viscosity Silica influence nd pass silica silica silica Initial Initial F days days F Page of

10 Garvey Die phr Silica- RPM Blank EFA F nd Pass st Pass control Silica Influence nd pass F silica silica silica Page of

11 Torque Silica nd Triangle die Nm Blank EF A F rpm rpm rpm Temperature build up Triangle die silica-nd ºC Blank EF A F rpm rpm rpm Page of

12 Relative pressure silica st.... Blank EF A F. rpm rpm rpm Extruder output silica st g/min Blank EF A F rpm rpm rpm Page of

13 Extrudate Profile parts Silica st pass additives / ºC Temperature Influence of ML(+) on Torque Torq ue ML(+)@ C Page of

14 Silica level-addition point Mooney T minutes Blank EF A F nd st nd st nd st Silica and addition point Rheometer T minutes Blank EF A F nd st nd st nd st Page of

15 Cured Properties % Modulus MPa nd- st- nd- st- nd- st- Blank EF A F Heat Build up Firestone Flexometer nd pass ºC Blank EF A F silica silica silica Page of

16 TAN DELTA hz MER-compression Blank C EF A C F C Blank C EF A F. silica silica silica Influence of Addition Tan Delta ( ºC) nd st nd st nd st Blank EF A F Page of

17 SURFACTANT/SILANE/SILICA INTERFACE/INTERPHASE [S(CH)Si(OR)] HO O H O Si O Si O O O O Summary Additive addition point Limited changes in processing effects Some changes in physicals Surfactant JV F Major changes in processing Excellent extrusion properties Improved dynamic physical properties Modifies polar filler/nonpolar rubber interface Page of

18 Future work Look at other mixing procedures Temperature influences Chemical addition points Vary the silane structure Study influence of storage conditions Study concentration effects Acknowledgements The following assisted in the experiments Zoran Brdarski Barbara Eikelberry Paul Danilowicz Roger Evans Kevin Tracy,,,,,,,, Page of

CHANCES AND THREATS FOR NATURAL RUBBER FOR USE IN LOW ROLLING RESISTANCE TYRES

Elastomer Technology and Engineering, Enschede, the Netherlands CHANCES AND THREATS FOR NATURAL RUBBER FOR USE IN LOW ROLLING RESISTANCE TYRES Title: to modify choose 'View' then Malaysian Rubber Board