Nouryon (formerly AkzoNobel Specialty Chemicals) Trigonox® series represents the global industry benchmark for organic peroxides, encompassing peroxyesters, dialkyl peroxides, peroxyketals, and hydroperoxides. Selecting the optimal Trigonox grade requires a comprehensive understanding of thermal decomposition ranges, radical reactivity, and formulation compatibility.
Basic Information
Chemical structures and IUPAC nomenclature of flagship Trigonox grades:
- Trigonox 21S (CAS 3006-82-4): tert-Butyl peroxy-2-ethylhexanoate (TBPEH), high-reactivity peroxyester for SMC/BMC curing.
- Trigonox 101 (CAS 78-63-7): 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (BPDH), benchmark dialkyl peroxide for rubber and polyolefin crosslinking.
- Trigonox 141 (CAS 26748-41-4): tert-Amyl peroxyneodecanoate (TAPND), low-temperature initiator for PVC and acrylic polymerization.
- Trigonox 301 (CAS 24748-23-6): 3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane, cyclic peroxide with extreme thermal stability for PP controlled rheology.
- Trigonox T (CAS 614-45-9): tert-Butyl peroxybenzoate (TBPB), versatile high-temperature curing initiator.
- Trigonox 311: Proprietary multi-component initiator for high-efficiency polymer melt index modification.
Trigonox Grade Comparison & Direct Cross-Reference
| Trigonox Grade | Chemical Name / CAS | Operating Temp | Primary Applications | Arkema Equivalent | United Initiators Eq. |
|---|---|---|---|---|---|
| Trigonox 21S | TBPEH / 3006-82-4 | 80–150°C | SMC/BMC, pultrusion, acrylic polymerization | Luperox 26 | TBPEH-LA |
| Trigonox 101 | BPDH / 78-63-7 | 140–180°C | Rubber curing, silicone, PP visbreaking | Luperox 101 | DHBP-45 |
| Trigonox T | TBPB / 614-45-9 | 100–160°C | Thermoset UP resin curing, polystyrene | Luperox P | TBPB |
| Trigonox 29 | TMCH / 6731-36-8 | 110–150°C | SMC compression molding, odorless curing | Luperox 231 | TMCH-50 |
| Trigonox C | TBPB / 614-45-9 | 120–160°C | High-temp pultrusion finishing initiator | Luperox P | TBPB-99 |
Applications
- SMC / BMC Composites: A dual-initiator system combining Trigonox 21S + Trigonox C (TBPB) provides an optimal balance between mold cavity flow and rapid crosslinking.
- PP Controlled Rheology (CR-PP): Trigonox 101 and Trigonox 301 yield high radical efficiency with minimal VOC residuals for narrow molecular weight distribution.
- Specialty Elastomers: Trigonox 101-45D-PD on silica carrier delivers excellent scorch safety and high modulus in EPDM profiles.
Safety and Storage
Storage temperature requirements vary strictly by grade. Trigonox 21S requires refrigerated storage below 20°C (SADT: 60°C). Yunno provides temperature-controlled global shipping and regulatory documentation.