TEPIC ®

TEPIC ®, Tris (2,3-Epoxy propyl) Isocyanurate, is a unique symmetrical triazine contains tri-functional epoxy compound which entirely different from conventional bisphenol type epoxy resin. TEPIC is well suited for electronic coatings and plays a crucial role as the the cross-linker integrity of solder mask, in tranparency of LEDs, and in outdoor durability of powder coating.
TEPIC

Applications of TEPIC

TEPIC consists of triazine nucleus and three glycidyl group. TEPIC triazine nucleus imparts outdoor durability due to low UV absorption.
TEPIC three glycigyl group imparts high heat resistance due to high cross link density. TEPIC has a wide variety of industrial applications such as:
circuit board

  • Print circuit board (PCB)
    – Top-coated ink
    – Solder-resistant ink (PCB solder mask)
    – High performance SRI for PC and Cell Phone
    – Short circuit prevention: Permanent protective coating of PCB
    – Increased heat and solvent resistance– Resolving power up
  • Transparent encapsulate (LED, CCD)
  • Semiconductor encapsulate
  • Plastic, rubber, and adhesive additive
  • Outdoor polyester powder coating

Properties of TEPIC

  • High cross-linking density with excellent heat
    resistance and thermosetting performance.
  • Minimum UV and lighting absorption provide with superb
    visibility.
  • Disperse fine powder with suspension stability for
    reactive latency.
  • Low chlorine contents, inhibit deterioration and electrolytic
    corrosion.
TEPIC ® G S SP SS HP L
Appearance Granule Powder Fine Powder Powder Powder Powder
Particle Size (nm) 4-42 mesh 99% 42 mesh pass > 99% 2.0 μm > (Median) 42 mesh pass > 99%  3-6 μm
(Median)
TBA
Melting Point °C 90-125 95-125 95-125 99-125 140-160 95-125
Epoxy Equivalent Weight (g/equiv.) < 110 < 105 < 105 < 102 < 105 < 105
ECH content (ppm) < 100 Not Detected Not Detected Not Detected <500 <900
Hydrolyzable Chlorine (%) < 2.0 < 0.15 < 0.15 < 0.03 < 0.03 TBA
Viscosity (CPS) 120°C < 100 < 100 < 100 < 100 < 100 < 100

TEPIC-S/DGEBA ratio and Tg

LEDs

TEPIC DGEBA

Solubility of TEPIC-S

TEPIC has high crystallization, high melting point, and hard solubility.

TEPIC Solubility

Solubility of TEPIC-L

TEPIC-L is a high-solubility grade.

25°C

 

Solvent Solubility (g/100g solvent)
TEPIC-S TEPIC-L
MEK 2.0 10.6
Ethyl acetate 1.5 7.2
PGME 1.6 2.5
PGMEA 2.2 5.2

40°C

 

Solvent Solubility (g/100g solvent)
TEPIC-S TEPIC-L
MEK 6.8 19.6
Ethyl acetate 4.6 12.5
PGME 2.9 5.2
PGMEA 4.0 8.8

Solubility of TEPIC-HP

TEPIC-HP is a latent hardener with a high melting point and high dispersibility.

20°C

 

Solvent Solubility (g/100g solvent)
TEPIC-S TEPIC-L
MEK 1.1 0.3
DMF 6.4 1.8