jER™ YX8800 is an anthracene-type epoxy resin with significantly low melt viscosity, high Tg and low-CTE. It can be used for electrical and electronic applications, carbon fiber reinforced polymers (CFRP) and other applications that require flame retardancy. jER™ YX8800 is an adduct formed from the reaction of epichlorohydrin and 1,4-dihydro-9,10-anthracenediol.
Benefits
- High flame retardancy
- Well-balanced mechanical properies
- High electrical reliability
Features
- Abrasion, heat and water resistance
- Electrical insulation
- Good thermal stability
- High glass tansition temperature
- Low CLTE
- Significantly low melt viscosity (melting point: 107°C)
- Low chroline content
Applications
- Electrical and electronic applications (EMC, solder resist, PCB)
- Potting and encapsulation materials.
- Powder coatings
- Adhesives
- Composites
*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
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Identification & Functionality
jER™ YX8800 Features & Benefits
- Highly adhesive to metal, porcelain, concrete
- Excellent insulation property
- High heat resistance
- High chemical resistance
- High water resistance
- Solid type (Flake)
- Significantly low melt viscosity (Melting point: 107°C)
- High Tg and low-CTE
- Low chroline content
- High Flame retardancy
Applications & Uses
jER™ YX8040 is a high purity alicyclic epoxy resin with colorless solid, that is used for optical materials e.g. LED encapsulant, adhesive for display.
Properties
| Value | Units | Test Method / Conditions | |
| Melting Point | 107 | °C | Differential Scanning Calorimetry |
| Value | Units | Test Method / Conditions | |
| Epoxy Equivalent Weight (WPE) | 174 - 183 | g/eq | Potentiometric Titration |
| Harsh Hydrolyzable Chloride | max. 700 | ppm | Potentiometric Titration |
| Total Chloride Content | 1000 | ppm | - |
| Value | Unit | Method | |
| jER™ YX8800 | 100 | phr | |
| Phenol Novolac | 57 | phr | |
| Triphenylphosphine | 1 | phr | |
| Curing condition | 120°C/2h + 175°C/6h | ||
| Cured State Properties | |||
| Tg | 168 | °C |
Dynamic mechanical analysis |
| Elastic modulus@40°C | 1.9 | GPa |
Dynamic mechanical analysis |
| Elastic modulus@250°C | 19 | MPa |
Dynamic mechanical analysis |
| Coefficient of thermal elongation(α1) | 61 | ppm |
Thermo mechanical analysis |
| Coefficient of thermal elongation(α2) | 173 | ppm |
Thermo mechanical analysis |
| Td5 | 327 | °C |
Thermogravimetry-Differential, Thermal Analysis (Heating rate: 10°C/min, in air) |
Technical Details & Test Data
Mechanism of flame retardancy
- Step 1. Carbonized layer is formed.
- Step 2. Heat insulating layer is formed.
- Step 3. Heat and air are kept out.
- Finally fire/flame is extinguished.
Model encapsulant composition
- Hardener : Phenol aralkyl, Accelerator Triphenylphosphine (2phr)
- Release agent : Carnauba wax (1phr)
- Coupling agent : Epoxy silane (1phr)
- Filler (Fused silica) Content : 85%, 175°C 200sec+8hr
Appropriate choice of Hardener for a desired curing temperature
- Epoxy resin forms 3D crosslinked network structure
- Abundant choices of Epoxy/Hardener combination
Packaging & Availability
Storage & Handling
Carefully read the SDS before using, handling, transporting, storing or disposing. jER™ YX8800 should be stored in tightly closed containers under exclusion of humidity at gentle temperatures. Avoid exposure to direct sunlight. Under these storage conditions the product has a minimum shelf life of three months from date of delivery.