HVA-2 Coagent (m-Phenylene Bismaleimide)
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.
Teknik Özellikler
| ash (%) | ≤0.30 |
| appearance | Yellow to light brown powder |
| purity (%) | ≥97.0 |
| moisture (%) | ≤0.50 |
| melting point (°C) | 198–204 |
Uygulama Alanları
- 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
Ürün Özellikleri
- 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
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