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High-performance UV-curable Trimethylolpropane Triacrylate (TMPTA) with low viscosity for coatings and inks

High-performance UV-curable Trimethylolpropane Triacrylate (TMPTA) with low viscosity for coatings and inks

MOQ: 500g, 1kg or 25kg for sample, 1000kg for commercial order
Standard Packaging: Net Weight 25kg or 200kg/package
Delivery Period: In 3 working days
Payment Method: T/T,LC,OA
Supply Capacity: 3000 Tons/month
Detail Information
Place of Origin
Shanxi, China
Brand Name
Zorui
Certification
ISO, COA, MSDS, TDS, AAA
Model Number
15625-89-5
NAME:
Trimethylolpropane Triacrylate (TMPTA)
CAS:
15625-89-5
Purity:
≥ 99%
Heavy Metals:
≤ 10 Ppm
Storage Conditions:
Store In A Cool, Dry Place, Away From Light
Sample:
Available
Port:
Tianjin, Shanghai, Qingdao, Other Ports In China
Trade Term:
EXW, DAP, FOB, CFR, CIF, CPT, CIP
Shipping:
Sample By Express, 100kg+ By Air, 1000kg+ By Sea
Storage:
Cool, Dry, And Well-ventilated Area; Avoid Moisture And High Heat
Product Description
Trimethylolpropane Triacrylate (TMPTA) CAS 15625-89-5
Product Introduction
Trimethylolpropane Triacrylate (TMPTA) is a high-performance trifunctional acrylic monomer widely used in UV-curable coatings, inks, adhesives, and resin formulations. With the CAS number 15625-89-5, this chemical features three reactive acrylate groups that enable rapid polymerization under UV light or electron beam radiation. TMPTA delivers excellent crosslinking density, resulting in coatings with superior hardness, chemical resistance, and durability. Its low viscosity and compatibility with various oligomers make it a versatile component in radiation-curable systems across multiple industries.

Physical and Chemical Specifications
Property Specification
CAS Number 15625-89-5
Molecular Formula C₁₅H₂₀O₆
Molecular Weight 296.32 g/mol
Appearance Clear, colorless to pale yellow liquid
Odor Mild acrylic odor
Purity ≥ 98.0%
Acid Value ≤ 0.5 mg KOH/g
Viscosity (25 °C) 80-120 mPa*s
Density (20 °C) 1.10-1.12 g/cm³
Refractive Index (20 °C) 1.470-1.475
Flash Point > 100°C (closed cup)
Boiling Point > 250°C (at 760 mmHg)
Melting Point < -50°C
Solubility Soluble in most organic solvents; insoluble in water
Storage Conditions Store in cool, dry, ventilated area away from light and heat sources
Shelf Life 12 months in original sealed container

Product Functions
  • Fast Curing: Enables rapid polymerization under UV/EB radiation, reducing production time.
  • High Crosslink Density: Provides excellent hardness, scratch resistance, and chemical stability.
  • Low Viscosity: Improves flow and wetting properties, facilitating easy formulation and application.
  • Enhanced Adhesion: Promotes strong bonding to various substrates including metals, plastics, and wood.
  • UV Stability: Offers resistance to yellowing and degradation under prolonged UV exposure.
  • Flexibility Control: Can be modified with other monomers to balance flexibility and rigidity.

Application Areas
  • Coatings: UV-curable wood, metal, plastic, and floor coatings.
  • Inks: Offset, screen, flexographic, and digital printing inks.
  • Adhesives: Pressure-sensitive, laminating, and structural adhesives.
  • Electronics: Photoresists, solder masks, and conformal coatings.
  • 3D Printing: Resin formulations for SLA and DLP printing.
  • Optical Fiber Coatings: Protective and matrix coatings.
  • Automotive: Interior and exterior trim coatings.
  • Packaging: Coatings for paper, cardboard, and plastic packaging.

Manufacturing Process
Trimethylolpropane Triacrylate is synthesized via esterification of trimethylolpropane (TMP) with acrylic acid in the presence of an acid catalyst and polymerization inhibitors. The process involves:
  1. Raw Material Preparation: High-purity TMP and acrylic acid are charged into a reaction vessel.
  2. Esterification: Reaction occurs under controlled temperature and vacuum conditions with catalyst addition.
  3. Neutralization & Washing: Removal of catalyst and excess acid through neutralization and water washing.
  4. Distillation: Purification under vacuum to remove water and light impurities.
  5. Inhibition: Addition of hydroquinone or MEHQ to prevent premature polymerization.
  6. Filtration & Packaging: Final filtration and packaging under inert atmosphere.

Why Choose Us
  • High Purity & Consistency: Rigorous QC ensures product meets exact specifications batch after batch.
  • Technical Support: Expert team provides formulation guidance and troubleshooting.
  • Competitive Pricing: Cost-effective solutions without compromising quality.
  • Global Logistics: Reliable supply chain with timely delivery worldwide.
  • Customization: Tailored solutions to meet specific application requirements.
  • Sustainability: Commitment to environmentally responsible manufacturing practices.
  • Certifications: ISO 9001, REACH, and other regulatory compliances.

Frequently Asked Questions
Q: What is the main use of TMPTA?
A: TMPTA is primarily used as a crosslinking agent in UV-curable coatings, inks, adhesives, and resins.
Q: Is TMPTA toxic or hazardous?
A: TMPTA can cause skin and eye irritation. Proper PPE including gloves and goggles should be worn during handling.
Q: How should TMPTA be stored?
A: Store in a cool, dry, well-ventilated area away from heat, sparks, and direct sunlight. Keep container tightly closed.
Q: Can TMPTA be used in water-based formulations?
A: TMPTA is hydrophobic and not directly water-soluble, but can be emulsified for certain water-based applications.
Q: What is the shelf life of TMPTA?
A: 12 months when stored properly in original sealed containers.
Q: Does TMPTA require special disposal?
A: Yes, follow local regulations for disposal of chemical waste. Do not pour into drains or waterways.
Q: Can you provide technical data sheets and samples?
A: Yes, we provide comprehensive TDS, MSDS, and sample requests for qualified customers.

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