OTR Silica Tread. With. Next Generation. Struktol Process Additives

Transcription

1 Producers of Specialty hemicals Struktol ompany of America 2. Steels orners Road P. O. Box 9 Stow, Ohio OTR Silica Tread With Next eneration Struktol Process Additives Struktol Rubber ab Project 9 Paul anilowicz Benny Bezilla STP25 Phone: () ax: () Technical Services: mail: customerservice@struktol.com

2 V Blend of fatty acid derivatives P 85 Zn ~5% 9 Blend of fatty acid derivatives P 5 Zn % Y 8 Blend of fatty acid derivatives P 97 Zn ~8% ZB7 Proprietary zinc compound P 2 Zn ~2% esigned to modify sulfur network PS Blend of fatty acid derivatives P 85 Zn % 2 Outline ormulations Mix Spec Rheometer ata Physical Property ata onclusions

3 2 ormulations Total Stearic acid PS ZB7 9 Y 8 V MS TMQ PP ZnO ZS2MP ZS5MP N SR - Premass/A9 Mass NRNT B A irst Pass 5 ormulations Total Sulfur TBBS 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 79.2 MB 7.2 MB B 7.2 MB A B A inal Pass

4 Mix Spec RST PASS MX ROTOR SP 77 RAM PRSSUR ATOR 7 SONS A RUBBR AN PPTZR SONS A BA, SA, ZN OX, PP, TMQ AN ATVS 2 SONS BRUS AN SWP 8 SONS BRUS AN SWP 2 SONS SAR 2N PASS MX SP ROTOR SP 77 RAM PRSSUR SONS OA ½ MB, A URS, RST MB SONS BRUS AN SWP 2 SONS OR 22 SAR Mixing Observations Temp ( ) Probe Temp(º) nergy (W) irst pass comments inal pass comments A (ontrol) Significantly reduced mix energy for all additives ower drop temperature for all additives 7

5 Mixing Observations B (ontrol) Temp ( ) 7 Probe Temp(º) 85. nergy (W) 2 irst pass comments inal pass comments Significantly reduced mix energy for all additives ower drop temperature for all additives 8 Rheometer urves 9

6 Rheometer urves Rheometer ata ; arc; range; minutes Tech Pro Min Torque Max Torque Ts 2 T 5 T 9 T-2 Reversion A (ontrol) Significantly increased cure state with all additives ower minimum torque with all additives Better reversion resistance with V, Y 8, 9 and ZB7 with the ZS5MP silica ure times approximately equal 5

7 Rheometer ata ; arc; range; minutes Tech Pro Min Torque Max Torque Ts 2 T 5 T 9 T-2 Reversion B (ontrol) Significantly increased cure state with all additives ower minimum torque with all additives Better reversion resistance with Y 8 and 9 with the ZS2MP silica ure times approximately equal 2 Mooney M age mooney nitial M (+) nitial week M (+) nitial 2 weeks M (+) nitial weeks M (+) A (ontrol) ecreased viscosity for better processability with all additives Better viscosity control with time providing more stable stock storage 58.7

8 Mooney M age mooney nitial M (+) nitial week M (+) nitial 2 weeks M (+) nitial weeks M (+) B (ontrol) ecreased viscosity for better processability with all additives Better viscosity control with time providing more stable stock storage Tensile ata Unaged ure Shore A uro Tensile long (%) % 2% % A (ontrol) igher hardness and modulus for all additives Tensile and elongation approximately equal for all additives 5 7

9 Tensile ata Unaged ure Shore A uro Tensile long (%) % 2% % B (ontrol) igher hardness and modulus for all additives Tensile and elongation approximately equal for all additives Oven Aged 7 º Sample Shore A Points Tensile long % % 2% Pct % Mod Pct A Rate of change after oven aging for hardness, modulus and elongation approximately equal to control 7 8

10 Oven Aged 7 º Sample Shore A Points Tensile long % % 2% % Mod B Rate of change after oven aging for hardness, modulus and elongation approximately equal to control 8 Tear Strength ASTM 2 ie N/MM ie 2º ie º Trouser Tear 2º Trouser Tear º ie B 2º ie B º A (ontrol) * * * qual to better tear for additives Y 8 and 9 9 9

11 Tear Strength ASTM 2 ie N/MM ie 2º ie º Trouser Tear 2º Trouser Tear º ie B 2º ie B º B (ontrol) * * * qual to better tear for additives Y 8 and 9 2 eat Build Up 25 lb. Weight;.25 Throw; 5 minute test ure time uro Temp A (ontrol) ower heat build-up for all additives 2

12 eat Build Up 25 lb. Weight;.25 Throw; 5 minute test ure time uro Temp B (ontrol) Significantly lower heat build-up for all additives 22 apillary Rheometer ata, 8 sec preheat ie / ratio: 5:: 9 entrance angle: mm orifice Apparent Stress (Pa) Apparent (Pa-s) Apparent Stress (Pa) Apparent (Pa-s) Shear 5/s 5/s /s /s A (ontrol) 2, 77, ,22 2, ,9. 28, ,8 7. 2, , , , , Significantly reduced apparent viscosity with all additives Better xtrudability ess scrap/workaway 2

13 apillary Rheometer ata, 8 sec preheat ie / ratio: 5:: 9 entrance angle: mm orifice Apparent Stress (Pa) Apparent (Pa-s) Apparent Stress (Pa) Apparent (Pa-s) Shear 5/s 5/s /s /s B (ontrol) 2, , 7. 28,8 28,8 2,28 2,2 222, ,87 2,2 2,87 29,79 2, Significantly reduced apparent viscosity with all additives Better extrudability ess scrap/workaway 2 MR Tension/ompression/ylindrical / Z OMPOUN Tan delta/ average of / 2c Tan delta/ average of / c A (ontrol) Reduction of Tan elta with all additives provides lower tire operating temperatures 25 2

14 MR Tension/ompression/ylindrical / Z OMPOUN B (ontrol) Tan delta/ average of / 2c Tan delta/ average of / c Significant reduction of Tan elta with all additives provides lower tire operating temperatures 2 onclusions Struktol Additives Provide Reduced mix energy. ncreased cure state. Better reversion resistance. Reduced viscosity for better processability/ extrudability (less scrap/workaway). igher hardness and modulus. qual to better tear. ower heat build-up. ower tan delta providing cooler running temperatures. 27