HVA-2 Coagent (m-Phenylene Bismaleimide)
CAS Number: 17351-75-6
HVA-2 (m-Phenylene Bismaleimide) is a highly effective polyfunctional coagent used in peroxide-cured EPDM, NBR, and HNBR rubber systems to increase crosslink efficiency, reduce peroxide loading, and improve physical properties. It reacts rapidly with peroxide-generated radicals to form bis-addition crosslinks, delivering higher modulus, tensile strength, and improved compression set compared to peroxide-only systems. HVA-2 also acts as an antireversion agent in sulfur-cured NR compounds.
Technical Specifications
| ash (%) | ≤0.30 |
| appearance | Yellow to light brown powder |
| purity (%) | ≥97.0 |
| moisture (%) | ≤0.50 |
| melting point (°C) | 198–204 |
Applications
- EPDM and HNBR peroxide-cure coagent
- High-heat automotive EPDM seals and hoses
- NBR oil-resistant peroxide-cured seals
- Antireversion agent in NR tire compounds
- Silicone rubber property enhancement coagent
Key Features
- Significantly increases peroxide crosslink efficiency
- Improves modulus, tensile strength, and compression set
- Functions as antireversion agent in NR sulfur-cure systems
- Reduces peroxide loading while maintaining physical properties
Send Inquiry
CAS Number
17351-75-6
Category
Rubber / Tire ChemicalsAvailability
In StockSample
Dispatched within 5 days
More in Rubber / Tire Chemicals
Accelerator DCBS (N,N-Dicyclohexyl-2-Benzothiazolesulfenamide)
4979-32-2
Accelerator DPG (Diphenylguanidine)
102-06-7
Accelerator DTU (Diethylthiourea)
534-07-6
Accelerator ZBDC (Zinc Dibutyldithiocarbamate)
136-23-2
Accelerator ZDEC (Zinc Diethyldithiocarbamate)
14324-55-1
Accelerator ZDMC (Zinc Dimethyldithiocarbamate)
137-30-4
Accelerator ZMBT (Zinc 2-Mercaptobenzothiazole)
155-04-4
Antioxidant 6PPD (N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine)
793-24-8