Recipe Application:
product | How to use | Results | ||
type | part | |||
Activated rubber powder A | Flame retardant | Covering rubber, middle layer | Partial replacement NR/BR | . Flame retardant: meets MT/T668-2019 test standard . Physical properties: consistent with the original formula performance |
Activated rubber powder B | Ordinary type, wear-resistant type, General flame retardant | Covering rubber, middle layer | . Flame retardant: meet the corresponding customer needs . Physical properties: consistent with the original formula . Abrasion: excellent performance | |
Activated rubber powder C | General | Middle Layer | .Meet technical standards |
Principle of adjusting the main ingredients of the formula:
Principle of cost reduction and efficiency improvement:
plan | WPS | A1 |
Purpose | Original recipe | Cost savings |
Cost saving yuan/ton (quality cost) | 0 | -259 |
NR | 35 | |
BR9000 | 10 | -5 |
12MPa reclaimed rubber | 50 | -10 |
Activated rubber powder A | 0 | +15 |
Reduce the amount of BR9000: the purpose is to reduce costs
Reduce the amount of recycled rubber: the purpose is to enhance the wear resistance and heat resistance of the formula
Recipe test results:
Verify the recipe: | ||
Recipe Name | WPS | A1 |
Natural Rubber | 35 | 35 |
BR9000 | 10 | 5 |
Activated rubber powder A | 15 | |
Recycled rubber 12MPa | 50 | 40 |
Verification result: 150℃*30min | ||
hardness | 62 | 63 |
Tensile Strength | 17.35 | 17.21 |
Elongation at break | 536.55 | 495.66 |
100% fixed stretch | 2.19 | 2.42 |
300% fixed stretch | 7.89 | 9.06 |
density | 1.136 | 1.147 |
DIN wear | 149.2 | 142.6 |
Cost Savings: | ||
Savings per ton/yuan (Quality cost) | 0 | -259 |
Savings per ton/yuan (Volume cost) | 0 | -230 |
Data analysis (activated rubber powder A: 15phr)
Hardness: The hardness is consistent with the original formula
Physical properties: The tensile stress has been improved; the tensile strength is consistent with the original formula; the elongation at break has been slightly reduced and is at the same level as the original formula;
Abrasion: Excellent abrasion performance.
Customer application feedback: Flame-retardant conveyor belt cover rubber
Raw materials | XT | XT-1 |
Natural Rubber | 30 | 30 |
Butadiene rubber | 35 | 35 |
SBR1502 | 35 | 35 |
Activated rubber powder A | 10 | |
Vulcanization conditions: 150℃*30min; 10MPa | ||
hardness | 65 | 64 |
TB/MPa | 16.37 | 16.38 |
EB/% | 474 | 468 |
300% fixed stretch | 12.66 | 13.08 |
proportion | 1.128 | 1.127 |
DIN wear | 134.2 | 136.4 |
Flame retardant testing (MT/T668-2019) | With flame (flame duration): ≤3S No flame: ≤1.5S | With flame (flame duration): ≤1S Without flame: No spark |
Data analysis (activated rubber powder A: 10phr)
Hardness: The hardness is consistent with the original formula;
Physical properties: The tensile stress, tensile strength and elongation at break are consistent with the original formula;
Abrasion: Excellent abrasion performance;
Flame retardant effect: meets MT/T668-2019 testing standards.
Customer application feedback: High-strength conveyor belt cover rubber
Data analysis (activated rubber powder A: 20phr)
After using 20phr activated rubber powder A instead of 18phr N330 carbon black in the formula, the overall performance of the formula is maintained at the original formula level, and the wear performance is improved.
Customer feedback: The verification results of the D-grade steel wire rope core cover glue formula are good, and a long-term cooperation has been formed.
Recipe Verification:
Raw materials | BNT-0 | BNT-1 | BNT-2 | BNT-3 | BNT-4 | BNT-5 | BNT-6 |
Natural Rubber | 80 | -5 | -10 | ||||
Butadiene rubber | 20 | -5 | -10 | ||||
Activated rubber powder A/B | 10 | 15 | 10 | 15 | 10 | 15 | |
Verify the results | Consistency | Meet national standards | Consistency | Meet national standards | Consistency | Meet national standards | |
Note: BNT-0 is the D-grade rubber formula for steel wire rope core (D-grade tensile strength: ≥18Mpa) |
Customer feedback: BNT-0 steel wire rope core D-grade cover rubber formula (TB≥18Mpa)
Use 10 parts of activated rubber powder, the physical properties are consistent with the original formula;
When using 15 parts, the physical properties decrease slightly, meeting the national standards.
Through the above formula experiments and customer usage verification, Star activated rubber powder can reduce costs and increase efficiency in the conveyor belt application market with significant results.
Welcome to use it and work together to further develop the application market!