Perovion TBEC L11 is a liquid organic peroxide based on tert-butylperoxy 2-ethylhexyl carbonate (TBEC) chemistry, formulated as a high-purity initiator for elevated-temperature polymerization, copolymerization, and crosslinking processes. Perovion TBEC L11 decomposes thermally to generate free radicals, supporting polymer production, polymer crosslinking, thermoset composite curing, and acrylics manufacturing. Perovion TBEC L11 is widely used across thermoplastic and thermoset systems where a well-defined, moderate-temperature activation profile is required to achieve consistent conversion rates and reproducible part properties.
Perovion TBEC L11 Overview
tert-Butylperoxy 2-ethylhexyl carbonate is an aliphatic percarbonate ester, a peroxide class offering a distinctive balance of thermal stability and decomposition rate compared with ketone peroxides, diacyl peroxides, and dialkyl peroxides. Perovion TBEC L11 is supplied as a high-concentration clear liquid, giving formulators a predictable and reproducible radical generation profile at its designed activation temperature. This purity and consistency support tight process control across large production runs, helping manufacturers reduce batch-to-batch variability in molecular weight and crosslink density.
As a liquid initiator, Perovion TBEC L11 is metered directly into polymerization reactors or thermoset resin systems without requiring a room-temperature accelerator, since it is designed to activate thermally at a moderate elevated temperature. This makes Perovion TBEC L11 a practical choice for polymer crosslinking and thermoset curing processes that rely on controlled heating rather than chemical promoters to initiate reaction, simplifying formulation and reducing the number of components that must be balanced during processing.
Key Features
- High-Purity Carbonate Ester Peroxide: Perovion TBEC L11 is supplied at high concentration with a well-defined single active species, giving formulators a predictable decomposition profile for polymerization and crosslinking applications.
- Moderate Activation Temperature: Perovion TBEC L11 is designed to activate at a moderate elevated temperature relative to other peroxide classes, making it suitable for processes that require initiation below the range typical of aromatic peresters, while still remaining above the activation range of lower-temperature redox systems.
- Broad Process Versatility: Perovion TBEC L11 is applicable to polymer production, polymer crosslinking, thermoset composite curing, and acrylics manufacturing, supporting a wide range of downstream applications across the polymer and composites industries.
- Defined Thermal Stability Profile: Perovion TBEC L11 has a well-characterized self-accelerating decomposition behavior, supporting safe handling and storage when appropriate temperature controls are followed.
- Consistent Batch-to-Batch Quality: Tight control over assay and active oxygen content in Perovion TBEC L11 supports reproducible reaction kinetics and product quality across successive production batches, helping processors maintain tight specification tolerances.
Typical Applications
Perovion TBEC L11 functions as a thermally activated initiator for polymer production processes, including the polymerization and copolymerization of various monomer systems where a moderate-temperature activation profile is desired. Its carbonate ester chemistry also supports polymer crosslinking applications, providing a defined reaction window for controlled network formation in both thermoplastic modification and thermoset systems.
Common end uses for Perovion TBEC L11 include thermoset composite curing, acrylics production, and polymer crosslinking processes across a range of industrial polymer manufacturing operations serving automotive, construction, and consumer goods sectors. It is also applicable to specialty polymerization systems requiring an initiator with a moderate, well-defined activation temperature distinct from higher-temperature peroxide esters, giving process engineers an additional tool for fine-tuning cure or reaction onset.
Technical Specifications
- Chemical Type: tert-Butylperoxy 2-ethylhexyl carbonate (TBEC)
- CAS No.: 34443-12-4
- Physical Form: Clear liquid
- Concentration: Approximately 95.0% min. (indicative for this grade; to be confirmed based on the final specification sheet)
- Active Oxygen Content: Approximately 6.49% (indicative for this grade; to be confirmed based on the final specification sheet)
- Self-Accelerating Decomposition Temperature (SADT): Approximately 60°C (indicative for this grade; to be confirmed based on the final specification sheet)
- Recommended Maximum Storage Temperature: Approximately 20°C (indicative; to be confirmed based on the final specification sheet)
- Density at 20°C: To be confirmed based on the final specification sheet.
Thermal Stability
- Organic peroxides, including Perovion TBEC L11, are thermally unstable substances and must be handled and stored with appropriate care at all times to avoid accidental decomposition.
- Self-Accelerating Decomposition Temperature (SADT): Approximately 60°C, as noted above; to be confirmed based on the final specification sheet.
Storage Recommendations
- Recommended maximum storage temperature: Approximately 20°C (indicative; to be confirmed based on the final specification sheet).
- Shelf life: At least 3 months after delivery under recommended storage conditions (indicative; to be confirmed based on the final specification sheet).
- Store in a dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources.
- Keep containers tightly closed and stored upright to prevent leakage and contamination, and label partially used containers clearly for downstream handlers.
- Avoid contact with reducing agents, acids, alkalis, and heavy metal compounds that can accelerate decomposition.
Packaging & Transport
- Standard Packaging: Available in approved industrial packaging, such as drums or IBCs; exact options to be confirmed based on the final specification sheet.
- Net Weight: To be confirmed based on the final specification sheet.
- UN Number: UN 3105 (indicative for this grade; to be confirmed based on the final specification sheet).
- Transport Classification: Organic Peroxide Type D, Division 5.2 (indicative for this grade; to be confirmed based on the final specification sheet).
- Certificate of Analysis (COA): Provided per batch upon shipment, confirming assay and active oxygen content.
- Documentation: Labels and Safety Data Sheet (SDS) prepared in accordance with transport and destination regulations; industrial use only.
Perovion TBEC L11: Safety & Handling
Perovion TBEC L11 should be handled in accordance with applicable safety procedures for organic peroxides. The product is classified as an oxidizing and thermally unstable material and requires appropriate storage, segregation, and handling measures to prevent accidental decomposition or contamination, particularly given its defined self-accelerating decomposition temperature. Users are advised to review the Safety Data Sheet prior to handling and to implement suitable personal protective equipment and engineering controls, including eye protection, chemical-resistant gloves, and adequate ventilation in the work area.
Spills should be contained and cleaned up promptly using absorbent materials compatible with organic peroxides, and contaminated waste should be disposed of according to local regulations and destination-specific environmental requirements. Safety Data Sheet and destination-compliant labeling information for Perovion TBEC L11 are available upon request. For related products, see also Perovion BPIC L75 and Perovion TBPB LC.