In modern industrial polymer engineering, safeguarding compounds from degradation caused by thermal stress and oxygen exposure is critical to product longevity. Rubber Antioxidant MMB (also known globally as MMBI) is a highly regarded heterocyclic secondary protectant. Chemically identified as 2-Mercaptomethylbenzimidazole (CAS No. 53988-10-6), MMB works by intercepting hydroperoxides during processing and service. It provides phenomenal non-staining defense and exhibits strong synergistic mechanics when paired with hindered phenol or amine primary antioxidants, making it indispensable for high-specification rubber goods.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Chemical Name | 2-Mercaptomethylbenzimidazole (MMBI / MMB) |
| CAS Number | 53988-10-6 |
| Molecular Formula | C8H8N2S |
| Appearance | White or light yellow powder / granules |
| Melting Point (°C) | ≥ 270.0 °C |
| Loss on Drying (%) | ≤ 0.50% |
| Ash Content (%) | ≤ 0.50% |
Why Choose Our MMB (MMBI) Antioxidant?
- ✓ Excellent Anti-Reversion Capabilities: MMB plays a critical role in minimizing sulfur vulcanization reversion in natural rubber compounds, preserving the compound’s mechanical modulus under extended high-temperature cures.
- ✓ Superb Non-Staining Protection: It protects white, bright-colored, or translucent rubber formulations from color aging and solar-induced discoloration, avoiding the aesthetic defects typical of conventional staining amine alternatives.
- ✓ Deactivation of Heavy Metals: Through its chemical ring structure, MMB acts as an efficient metal inhibitor, chelating trace copper and structural metal impurities to suppress metal-catalyzed polymer oxidation.
Primary Applications
MMB is heavily incorporated into natural rubber (NR), styrene-butadiene rubber (SBR), nitrile elastomer (NBR), and EPDM masterbatches:
Wire & Cable Compounds
Highly recommended for electrical power cables, communication wire insulation jackets, and heavy industrial wire sleeves requiring active stabilization against copper wire poisoning.
Heat-Resistant Automotive Goods
Perfect for under-hood weatherstrips, coolant hoses, conveyor lines, heavy industrial gaskets, and anti-vibration automotive components subjected to continuous high thermal loads.
Transparent & Latex Sheeting
Extensively selected for light-colored footwear outsoles, fine dipping medical latex, elastic band threads, and pristine white consumer rubber components.
Quality Assurance & Global Compliance
As a leading global partner in industrial chemical manufacturing, we understand that raw material purity, molecular consistency, and strict regulatory tracking directly safeguard your production line metrics. Our advanced manufacturing facilities maintain rigorous quality configurations to ensure total compliance and confidence across all international markets:
- Advanced Laboratory Quality Control: Every commercial batch of our Antioxidant MMB (MMBI) passes through extensive laboratory verification protocols—including capillary melting range profiling, gas chromatography for assay purity verification, and precise residual ash analysis—ensuring absolute matrix uniformity and zero performance variance in your compounding plant.
- Comprehensive International Regulatory Compliance: We maintain a highly proactive approach to global chemical governance. All export shipments are systematically backed by complete regulatory documentation, including up-to-date, comprehensive multilingual GHS Safety Data Sheets (SDS), detailed Certificates of Analysis (CoA), and official tracking credentials fully matching EU REACH and US TSCA parameters.
- Optimized Packaging & Workspace Safety: To lower material handling loss and eliminate airborne chemical dust cross-contamination on your factory floor, we offer tailored logistics configurations. This includes standard multi-wall moisture-resistant paper bags (25kg), heavy bulk jumbo supersacks (FIBCs), and dust-controlled granule grades perfectly suited for automated weighing systems.
⚠ Storage & Handling Guidelines
Maintaining correct climate-controlled conditions is essential to protect the molecular performance stability of Antioxidant MMB (MMBI). Because it is a heterocyclic sulfur compound, sub-optimal storage can encourage moisture buildup, leading to material caking and reduced chemical uniformity during industrial mixing cycles.
- • Environmental Controls: Store the chemical inside a completely dry, cool, and well-ventilated dedicated warehouse. Ensure that storage racks remain isolated from direct solar heating, steam pipes, open flame hazards, and strong acidic raw materials.
- • Sealing Management: Keep all industrial bags completely tied and undamaged during processing. Partially consumed packaging elements must be mechanically re-sealed immediately to minimize exposure to indoor workshop humidity.
- • Shelf Life & Rotation: Under standard cool, shaded warehouse conditions, our premium MMB exhibits a certified shelf life of 24 months from the date of manufacture. A strict First-In, First-Out (FIFO) batch cycle is strongly advised to maximize production uniformity.
Frequently Asked Questions
What is the core technical difference between MMB (MMBI) and standard MB (MBI)? +
How does MMB perform as a metal inhibitor in cable shielding? +
Does MMB (MMBI) trigger vulcanization delays or scorch alteration? +
Partner with a Reliable Chemical Supplier
We provide premium-grade Rubber Antioxidant MMB (MMBI) carefully formulated to meet international technical benchmarks. Available in high-purity fine powder and custom dust-free configurations to ensure absolute batch precision inside your industrial mixing environment.
