In the vast landscape of chemical compounds, Trimethylolpropane Trimethacrylate (TMPTMA), identified by its CAS number 3290-92-4, holds a significant position due to its versatile chemical properties and extensive industrial applications. As a trifunctional methacrylate monomer, TMPTMA is instrumental in enhancing the performance of numerous materials, particularly where enhanced durability, thermal stability, and chemical resistance are paramount.

Understanding the chemical characteristics of TMPTMA is key for formulators seeking to leverage its potential. Its molecular structure comprises a trimethylolpropane core with three methacrylate ester groups. This trifunctional nature is the foundation of its efficacy as a crosslinking agent. When subjected to free radical polymerization, TMPTMA forms a highly interconnected three-dimensional polymer network. This process results in materials that possess superior mechanical strength, increased hardness, excellent solvent resistance, and improved thermal stability compared to polymers crosslinked with difunctional or monofunctional monomers.

Key Chemical Properties:

  • Appearance: Typically a clear, colorless to slightly yellow liquid.
  • Molecular Formula: C18H26O6
  • Molecular Weight: 338.4 g/mol
  • Purity: Commonly available at ≥95% or ≥99% purity.
  • Melting Point: Approximately -25°C.
  • Boiling Point: Above 200°C at 1mm Hg.
  • Density: Around 1.06 g/mL at 25°C.
  • Solubility: Generally soluble in most organic solvents, but insoluble in water.

Widespread Industrial Applications:

The unique combination of these properties makes TMPTMA a valuable ingredient across various industries:

  • Rubber Industry: Used as a vulcanization activator and crosslinking modifier to improve properties like heat resistance, aging resistance, and hardness in synthetic rubbers such as NBR and EPDM.
  • Coatings and Inks: Enhances scratch resistance, gloss, and chemical durability in high-performance coatings and UV-curable inks.
  • Adhesives and Sealants: Improves bond strength, thermal stability, and resistance to chemicals in various adhesive formulations.
  • Plastics and Composites: Acts as a crosslinking agent to boost the mechanical strength, thermal resistance, and dimensional stability of plastics and composite materials.
  • 3D Printing: A key component in photopolymer resins, contributing to high resolution, hardness, and chemical resistance in printed objects.

For businesses requiring a reliable supply of TMPTMA, partnering with a quality manufacturer and supplier is essential. We, as a dedicated chemical provider based in China, offer high-purity TMPTMA and invite researchers and procurement specialists to contact us for detailed product specifications, competitive pricing, and to arrange for sample orders to explore its extensive capabilities.