Activated rubber powder A component detection:
Element | Activated rubber powder A content/% | National standard/% |
Rubber hydrocarbon | 57 | >45 |
Carbon Black | 34 | >26 |
other | 9 |
结论:活化橡胶粉橡胶烃含量为57%,优于国标。
Conclusion: The rubber hydrocarbon content of activated rubber powder is 57%, which is better than the national standard.
Principle of adjusting the main ingredients of the formula:
Note: Based on the original formula of TBR-1, the usage of NR, BR and activated rubber powder A is adjusted.
plan | TBR-1 | TBR-2 | TBR-3 | TBR-4 | TBR-5 | TBR-6 |
Purpose | Original recipe | Empowerment | Reduce costs | Reduce costs | ||
Cost saving yuan/ton (quality cost) | 0 | -363 | -422 | -657 | -484 | -456 |
NR | 80 | -5 | -10 | -10 | -5 | |
BR9000 | 20 | -5 | ||||
Activated rubber powder A | +10 | +10 | +15 | +10 | +10 |
Enhanced efficiency: improved tearing, tensile strength and abrasion performance
Cost reduction: reduce costs and maintain the performance level of the original formula
Data analysis (activated rubber powder A: 10-15phr)
1. Hardness: The hardness is consistent with the original formula
2. Physical properties: tear and tensile stress have been improved; tensile strength and elongation at break have been slightly reduced, and are at the same level as the original formula
3. Wear: Excellent wear performance
Tread: Long-distance wear-resistant formula (NR: 100phr)
Data analysis (activated rubber powder A: 10phr)
Excellent wear performance
The quality cost is reduced by 0.22 yuan/kg. For a 12R22.5 RR202+ tire with a tread of 12 kg, the cost per tire is reduced by about 2.67 yuan.
The overall physical properties remain basically unchanged
Tread: Long-distance wear-resistant tread formula (NR: 100phr)
Purpose | Reduce costs and increase efficiency | |||||||
Original recipe | Direct filling | Replace 5phrNR | Replace 7phrNR | |||||
Recipe Name | TBR-1 | TBR-2 | TBR-3 | TBR-4 | TBR-5 | TBR-6 | TBR-7 | TBR-8 |
Natural Rubber | 100 | 100 | 100 | 100 | 95 | 95 | 93 | 93 |
Activated rubber powder A | 10 | 15 | 20 | 10 | 15 | 10 | 15 | |
N234 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
Cost saving Yuan/ton (Quality cost) | 0.00 | -406.1 | -592.6 | -769.3 | -468 | -658 | -494 | -685.1 |
Cost saving Yuan/piece (Quality cost) (12 kg tread) | 0.00 | -4.87 | -7.11 | -9.23 | -5.62 | -7.90 | -6 | -8.22 |
Summary: After the activated rubber powder A is applied to the tread formula at 10-20phr, the quality cost is reduced by 406.1-769.3 yuan/ton compared with the original formula. The cost of a single tire is reduced by 4.84-9.23 yuan/tire.
1. Rheometer: The vulcanization speed of activated rubber powder A in tread formula is slightly accelerated, and the vulcanization system needs to be fine-tuned;
2. Hardness: consistent with the original formula;
3. Physical properties: Before aging, the tensile strength, elongation at break and elongation at set point decreased slightly, and are at the same level as the original formula. After aging, the performance is consistent with the original formula;
4. Wear: Excellent wear performance;
5. Compression heat generation: When the activated rubber powder A is used in the formula less than 15phr, it is consistent with the original formula, and it increases slightly after using 20phr. The heat generation level of the overall formula remains unchanged.
Summary: After activated rubber powder A is applied to the tread formula at 10-20phr, the performance is at the same level as the original formula.
The following conclusions have been drawn after verification:
Cost: After the activated rubber powder A is applied to the tread formula at 10-20phr, the quality cost is reduced by 406.1-769.3 yuan/ton compared with the original formula. The cost of a single tire is reduced by 4.84-9.23 yuan/piece.
Performance: After activated rubber powder A is applied to the tread formula at 10-20phr, the performance is at the same level as the original formula.
Tread: Mine tread formula (NR: 80phr)
Purpose | Reduce costs and increase efficiency | ||||
Original recipe | Direct filling | ||||
Recipe Name | OTR-1 | OTR-2 | OTR-3 | OTR-4 | OTR-5 |
Natural Rubber | 80 | 80 | 80 | 80 | 80 |
SBR1502 | 20 | 20 | 20 | 20 | 20 |
Activated rubber powder A | 5 | 10 | 15 | 20 | |
N234 | 48 | 48 | 48 | 48 | 48 |
White Carbon Black | 7 | 7 | 7 | 7 | 7 |
Cost saving Yuan/ton (Quality cost) | 0 | -193.6 | -376.6 | -549.8 | -714.0 |
Summary: After activated rubber powder A is applied to the OTR tread formula at 5-20phr, the quality cost is reduced compared with the original formula: 193.6-714.0 yuan/ton.
Purpose | Reduce costs and increase efficiency | ||||
Original recipe | Direct filling | ||||
Recipe Name | OTR-1 | OTR-2 | OTR-3 | OTR-4 | OTR-5 |
Natural Rubber | 80 | 80 | 80 | 80 | 80 |
SBR1502 | 20 | 20 | 20 | 20 | 20 |
Activated rubber powder A | 5 | 10 | 15 | 20 | |
N234 | 48 | 48 | 48 | 48 | 48 |
White Carbon Black | 7 | 7 | 7 | 7 | 7 |
Rheometer 150℃*30min | |||||
ML | 1.9 | 2.1 | 2.1 | 2.1 | 2.3 |
MH | 13.2 | 13.0 | 12.2 | 11.6 | 11.6 |
MH-ML | 11.3 | 11.0 | 10.2 | 9.5 | 9.3 |
t10 | 3.8 | 3.6 | 3.4 | 3.4 | 3.3 |
t30 | 4.8 | 4.5 | 4.2 | 4.2 | 4.2 |
t50 | 5.4 | 5.2 | 5.0 | 4.6 | 5.0 |
t60 | 6.3 | 5.8 | 5.5 | 5.4 | 5.5 |
t90 | 10.1 | 9.0 | 8.6 | 8.3 | 8.6 |
t100 | 21.7 | 18.2 | 19.6 | 19.2 | 19.7 |
Rheometer: The vulcanization speed of rubber powder A in the tread formula is slightly accelerated, and the vulcanization system needs to be fine-tuned;
Purpose | Reduce costs and increase efficiency | |||||
Original recipe | Direct filling | |||||
Recipe Name | OTR-1 | OTR-2 | OTR-3 | OTR-4 | OTR-5 | |
Natural Rubber | 80 | 80 | 80 | 80 | 80 | |
SBR1502 | 20 | 20 | 20 | 20 | 20 | |
Activated rubber powder A | 5 | 10 | 15 | 20 | ||
N234 | 48 | 48 | 48 | 48 | 48 | |
White Carbon Black | 7 | 7 | 7 | 7 | 7 | |
Physical properties (vulcanization conditions: 150℃*30min), aging: 100℃*24h | ||||||
Tensile strength TB/MPa | Before aging | 21.2 | 20.4 | 19.0 | 18.9 | 19.3 |
After aging | 20.7 | 19.6 | 18.2 | 19.0 | 19.0 | |
Elongation at break EB/% | Before aging | 558.5 | 562.1 | 532.9 | 544.0 | 540.4 |
After aging | 468.3 | 450.8 | 490.2 | 461.4 | 465.7 | |
Strength extension product TB*EB | Before aging | 11852 | 11467 | 10146 | 10259 | 10425 |
After aging | 9699 | 8844 | 8931 | 8766 | 8843 | |
100% tensile stress/MPa | Before aging | 1.8 | 1.8 | 1.8 | 1.6 | 1.6 |
After aging | 2.7 | 2.7 | 2.1 | 2.4 | 2.4 | |
300% tensile stress/MPa | Before aging | 9.5 | 9.4 | 9.2 | 8.6 | 8.8 |
After aging | 12.6 | 12.8 | 10.4 | 11.7 | 11.5 | |
DIN wear | Before aging | 116.3 | 111.5 | 123.1 | 138.6 | 147.3 |
After aging | 140.1 | 142.5 | 149 | 147.6 | 150.5 | |
Compression heat | Before aging | 52.3 | 51 | 54.3 | 55 | 57 |
1. Hardness: consistent with the original formula;
2. Physical properties: The tensile strength and elongation before and after aging decreased slightly, and are at the same level as the original formula. The elongation at break is consistent with the original formula;
3. Abrasion: When the activated rubber powder A is used in the formula less than 15phr, the abrasion performance is excellent. After using 20phr, the abrasion performance decreases slightly;
4. Compression heat generation: When the activated rubber powder A is used in the formula at less than 15phr, it is consistent with the original formula. When 20phr is used, the heat generation increases slightly.
Cause analysis and improvement plan: Due to the high filling factor of the formula, the wear performance of the formula decreased slightly and the compression heat generation increased after using 20phr of rubber powder A. The amount of N234 carbon black and white carbon black in the formula can be reduced. It can not only reduce heat generation, improve wear, maintain the performance of the original formula, but also further reduce costs.
Summary: After the activated rubber powder A is applied to the tread formula at 10-15phr, the performance is at the same level as the original formula. After using 20phr, the wear and heat generation performance is slightly reduced, which can be improved by reducing the amount of N234 carbon black and white carbon black in the formula, further reducing costs.
The following conclusions have been drawn after verification:
Cost: After activated rubber powder A is applied to the OTR tread formula at 5-20phr, the quality cost is reduced compared with the original formula: 193.6-714.0 yuan/ton.
Performance: After the activated rubber powder A is applied to the OTR tread formula at 5-15phr, the performance is at the same level as the original formula. After using 20phr, the wear and heat generation performance is slightly reduced, which can be improved by reducing the amount of N234 carbon black and white carbon black in the formula, further reducing costs.
Through the above formula experiments and customer usage verification, Star activated rubber powder can reduce costs and increase efficiency in the TBR/OTR tire application market with significant results.
Welcome to use it and work together to further develop the application market!