SINOMER® THEICTA: The 高性能 Trifunctional Acrylate for Extreme Durability & Heat Resistance

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SINOMER® THEICTA: The 高性能 Trifunctional Acrylate for Extreme Durability & Heat Resistance

*Tris(2-Hydroxy Ethyl) Isocyanurate Triacrylate – CAS 40220-08-4*


Introduction: The Ultimate Choice for High-Temperature & 高性能 Applications

When your UV-curable formulations demand exceptional heat resistance, uncompromising hardness, and superior durability, SINOMER® THEICTA stands out as the industry's premier trifunctional acrylate 单体. With its unique triazine ring structure and three reactive acrylate groups, THEICTA delivers a combination of properties that few other 单体s can match.


As one of the highest glass transition temperature (Tg) acrylates available — exceeding 250°C — SINOMER® THEICTA enables 涂料, adhesives, and inks that maintain their integrity even under the most demanding conditions . Whether you're formulating for automotive 涂料, electronic encapsulation, or high-speed printing, THEICTA provides the backbone for truly durable systems.


Key Performance Advantages

Exceptional Heat Resistance (Tg > 240°C)

SINOMER® THEICTA features a glass transition temperature exceeding 240°C — among the highest of any UV/EB curable acrylate . This exceptional thermal stability ensures that cured films retain their hardness, structural integrity, and performance properties even under prolonged heat exposure. Applications requiring reflow soldering (up to 260°C) or continuous high-temperature service are ideal candidates for THEICTA-based formulations.


High Reactivity & Fast Curing

With three acrylate groups per molecule, THEICTA offers high crosslinking density and rapid polymerization under UV or electron beam exposure . This high reactivity translates to:

  • Faster line speeds in production

  • Lower energy consumption

  • Reduced oxygen inhibition issues

  • Immediate handling and stacking capability


Superior Hardness & Scratch Resistance

The high crosslink density achieved with THEICTA creates a rigid, three-dimensional polymer network that delivers:

  • Outstanding surface hardness — ideal for protective 涂料

  • Excellent scratch and mar resistance — maintains appearance over time

  • Low wear rate — suitable for high-traffic surfaces 


Outstanding Chemical & Water Resistance

THEICTA's triazine ring structure provides inherent resistance to a wide range of chemicals . Cured films demonstrate excellent durability against:

  • Organic solvents (acetone, alcohols, toluene)

  • Acids and alkalis

  • Water and humidity (both immersion and condensation)

  • Oils and greases


Low Shrinkage & Excellent Adhesion

Despite its high crosslink density, THEICTA exhibits low volume shrinkage during curing . This characteristic, combined with its polar triazine core, promotes:

  • Superior adhesion to metals (aluminum, steel), glass, and various plastics

  • Reduced internal stress in thick films

  • Better dimensional stability in precision applications


High Gloss & Transparency

THEICTA-based 涂料 exhibit excellent optical clarity and high gloss . The cured films remain water-white and resist yellowing even under extended UV exposure or high temperatures, making them suitable for clear coats and optical applications.


Technical Specifications

PropertySpecification
Chemical NameTris(2-Hydroxy Ethyl) Isocyanurate Triacrylate
CAS No.40220-08-4
Molecular FormulaC₁₈H₂₁N₃O₉
Molecular Weight423.37 g/mol
Functionality3
AppearanceWhite crystalline solid (transparent when melted)
Glass Transition Temperature (Tg)> 240°C 
Viscosity (60°C, melted)400 – 500 cps
Acid Value≤ 0.2 mg KOH/g
Color (APHA, melted)≤ 50
MEHQ 阻聚剂300 – 600 ppm

*Note: THEICTA is a crystalline solid at room temperature (melting point ~52-54°C) and requires gentle heating (50-60°C) for incorporation into liquid formulations . For applications requiring a ready-to-use liquid version, please inquire about our specialized liquid grades.*


Application Areas


UV 涂料

ApplicationKey Benefits
Metal 涂料Exceptional adhesion, corrosion protection, heat resistance
Plastic 涂料Hardness, scratch resistance, chemical resistance
Glass 涂料Optical clarity, adhesion, durability
PVC Floor 涂料Wear resistance, chemical resistance
Wood 涂料Scratch resistance, heat tolerance, clarity


UV Printing Inks

ApplicationKey Benefits
Flexographic & Gravure InksFast curing, excellent transfer, high gloss
Screen Printing InksGood rheology, sharp image definition
Offset InksHigh reactivity, low misting
Overprint Varnishes (OPV)High gloss, rub resistance, heat resistance


Adhesives

ApplicationKey Benefits
Structural AdhesivesHigh bond strength, heat resistance, durability
Pressure-Sensitive Adhesives (PSA)Cohesive strength, thermal stability
Electronics AdhesivesLow outgassing, high Tg, reflow compatibility


Electronics & 3D Printing

ApplicationKey Benefits
Solder Masks & PhotoresistsHigh resolution, heat resistance, chemical resistance
Electronic EncapsulantsThermal stability, moisture resistance, protection
3D Printing Resins (SLA/DLP)Excellent layer adhesion, heat resistance, low shrinkage 
Optical Fiber 涂料Transparency, mechanical strength, temperature stability


Advanced & Specialty Applications

  • Aerospace & Automotive 涂料: Engine compartment components, under-hood applications requiring heat resistance 

  • Composite Matrices: Reinforced composites for structural components

  • Release 涂料: Textile, paper, and film release applications

  • Flexible Packaging: High-speed printing with excellent rub resistance


Why Choose SINOMER® THEICTA?


Unmatched Performance in Extreme Conditions

With its unique combination of high Tg, high crosslink density, and chemical resistance, THEICTA is the 单体 of choice when formulations must withstand:

  • High temperatures (continuous service >150°C, peak >250°C)

  • Aggressive chemicals (solvents, acids, bases)

  • Mechanical stress (abrasion, impact, scratching)

  • Environmental exposure (humidity, UV, thermal cycling)

Reliable Supply & Technical Support

中固化学集团 manufactures SINOMER® THEICTA to strict quality standards, ensuring:

  • Consistent batch-to-batch purity (>99% typical)

  • Stable 阻聚剂 levels for reliable processing

  • Comprehensive technical support for formulation development

  • Reliable supply chain with responsive customer service


Proven Industry Adoption

Leading global suppliers of UV/EB materials offer THEICTA (often under trade names like 

) as a key component in their 高性能 portfolios . SINOMER® THEICTA provides the same exceptional quality and performance, backed by 中固化学's commitment to excellence.


Formulation Guidance

Incorporation

Due to its crystalline nature, SINOMER® THEICTA should be heated to 50-60°C to melt before incorporation into formulations. It is compatible with:

  • Most acrylate oligomers (epoxy acrylates, urethane acrylates, polyester acrylates)

  • Common reactive diluents (TMPTA, TPGDA, HDDA, etc.)

  • Standard 光引发剂s (Type I and Type II systems)


Recommended Dosage

Formulation TypeTypical Concentration
Hard 涂料20 – 50%
Printing Inks5 – 25%
Adhesives10 – 40%
3D Printing Resins10 – 35%

Optimal dosage should be determined through formulation-specific testing.


Storage & Handling

  • Storage Temperature: 5 – 40°C in original sealed container 

  • Shelf Life: 12 months from date of manufacture under recommended conditions

  • Handling: Avoid exposure to light and heat. Keep container tightly sealed. Warm to 50-60°C prior to use.

  • Precautions: Contains MEHQ 阻聚剂; avoid contamination with initiators or catalysts


Contact Us

For technical data sheets, samples, or formulation assistance, please contact 中固化学集团:


Email: info@sinocurechem.com
Phone: +86 15668330235
Website: www.sinocurechem.com


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