Characteristics and Applications of Trioctyl Trimellitate (TOTM)

Characteristics

High temperature stability

High temperature resistance: Long-term temperature resistance up to 120-150°C, short-term can withstand higher temperatures (e.g. 200°C), suitable for high-temperature environments (e.g. automotive cables, engine parts).

Low volatility: high boiling point (about 410°C), non-volatile at high temperatures, reducing the risk of material aging.

Durability and migration resistance

Oil and solvent resistance: high stability in grease or chemical solvent environments, suitable for industrial hoses and sealing materials.

Migration resistance: not easy to seep out from the plastic, prolonging product life (e.g. medical equipment, food packaging).

Environmental protection and safety

Phthalate-free: Complies with EU REACH, RoHS and US FDA food contact standards (21 CFR 175.105).

Low toxicity: passes biocompatibility tests (e.g. USP Class VI) and can be used in medical products such as blood bags and infusion tubes.

Processability

Good compatibility with PVC: Higher additive amount (usually 50-70 phr), slightly lower plasticizing efficiency than DEHP, but better overall performance.

Core application areas

Wire and cable

High-temperature insulation: automotive wiring harnesses, aerospace cables, high-temperature wires for household appliances.

Advantage: maintain flexibility at high temperatures to avoid embrittlement.

Medical equipment

Long-term contact products: blood bags, infusion tubes, respiratory masks, to avoid plasticizer migration and contamination of the liquid.

Implantable devices: for catheters and artificial organ materials that require long-term stability.

Automotive industry

High temperature resistant parts: engine compartment hoses, seals.

Interior materials: dashboard skin, door trim, weather resistant and low odor.

Food and Children's Products

Food packaging: FDA-approved for food films, sealing gaskets.

Children's toys: dental chewing gum, soft toys, meeting EN71-3 and other safety standards.

Industrial

Chemical-resistant materials: conveyor belts, industrial hoses, anti-corrosion coatings.