jER™ YX8040 is a hydrogenated bisphenol A-type solid epoxy resin, with high molecular weight. It can be used for optical materials such as LED encapsulants and adhesives for displays.
Features
- High purity
- Transparency
- LED-curable
- UV-curable
*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
Polymer Name: Epoxy Resins & Compounds
Function: Adhesion Promoter, Binder, Coupling Agent
Chemical Family: Epoxy & Epoxy Derivatives
Labeling Claims: High Purity
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Technical Data Sheet
jER™ YX8040 Technical Data Sheet
jER™ YX8040 Technical Data Sheet
Technical Data SheetSafety Data Sheet
jER™ YX8040 Safety Data Sheet
jER™ YX8040 Safety Data Sheet
Safety Data SheetBrochure
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jER™ YX8000 Series Hydrogenated Epoxy Resin Brochure
BrochureKnowde Enhanced TDS
Identification & Functionality
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Polymer Name
CASE Ingredients Functions
Composite Materials Functions
Plastics & Elastomers Functions
Technologies
jER™ YX8040 Features & Benefits
Labeling Claims
CASE Ingredients Features
Materials Features
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Applications
Cure Method
Plastics & Elastomers End Uses
Recommended Uses & Known Applications
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
Physical Form
Appearance
Typical Physical Properties
| Value | Units | Test Method / Conditions | |
| Refractive Index (589nm) | 1.50 | - | D line |
Physical Properties
| Value | Units | Test Method / Conditions | |
| Total Chloride | 500 | ppm | Potentiometric Titration |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Epoxy Equivalent Weight (WPE) | 900 - 1500 | g/eq | Potentiometric Titration |
| Softening Point | 70 - 100 | °C | Ring and ball method |
| Viscosity (at 25°C) | 2.9 | Pa.s | - |
Properties Formulation
| Value | Unit | Method | ||||
| jER™ YX8040 | 50 | 0 | phr | |||
| jER™ YX8000 | 50 | 100 | phr | |||
| Anhydride curing agent Methylhexahydrophthalic anhydride/Hexahydrophthalic anhydride = 70/30) | 48 | 83 | phr | |||
| Curing accelerator (Methyltributylphosphonium dimethylphosphate) | 1 | 1 | phr | |||
| Gel time @ 120 °C | 21 | 32 | ||||
| Curing condition | 100°C/3h + 130°C/3 h | |||||
| Cured State Properties | ||||||
| Heat deflection temperature | 108 | 118 | °C | |||
|
Light resistance (Weathermeter, 0.4kw/m^2) |
Yellowness index |
0hr | 1 | 1 | - | |
| 168hr | 4 | 9 | - | |||
|
Light transmittance at 360 nm |
0hr | 85 | 84 | % | ||
| 168hr | 78 | 50 | % | |||
Technical Details & Test Data
Izod Impact Strength Data
Packaging & Availability
Packaging Type
Packaging Information
Paper bag with 20 kg net
Storage & Handling
Shelf Life
Storage and Handling
Carefully read the SDS before using, handling, transporting, storing or disposing. jER™ YX8040 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.
jER™ YX8040
The Mitsubishi Chemical Group