jER™ YX4000 is a biphenol-type solid epoxy resin with significantly low melt viscosity, low water absorption and a good balance between adhesiveness and rigidity against stress. It can be used for electrical and electronic applications. jERTM YX4000 is an adduct formed from the reaction of epichlorohydrin and tetramethylbiphenol
Features
- Abrasion, heat and water resistance
- Electrical insulation
- Wear resistance
- Product Highlights
- Significantly low melt viscosity (melting point: 108°C)
- Low chroline content
- Low water absorption
Applications
- Electrical and electronic applications (EMC, solder resist, PCB)
- Potting and encapsulation materials
- Powder coatings for ship bottoms
- Adhesives
- Composites
*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
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Identification & Functionality
jER™ YX4000 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: 108°C)
- Good balance between adhesiveness and rigidity against stress.
- Low chroline content
- Low water absorption
Applications & Uses
jER™ YX4000 is a solid-type epoxy resin with well-balanced properties and is used for :
- Electrical and electronic applications(EMC, solder resist, PCB, etc.)
- Composites, Potting & encapsulation materials.
- Powder coating
- Adhesives
- Composites
Properties
| Value | Units | Test Method / Conditions | |
| Density (at 25°C) | 1.15 | g/cm3 | Pycnometer |
| Harsh Hydrolyzable Chloride | 400 | ppm | Potentiometric Titration |
| Melting Point | 108 | °C | Differential Scanning Calorimetry |
| Value | Units | Test Method / Conditions | |
| Epoxy Equivalent Weight (WPE) | 180 - 192 | g/eq | Potentiometric Titration |
| Total Chloride Content | 1000 | ppm | - |
| Value | Unit | Method | |
| jER™ YX4000 | 100 | phr | |
| Phenol Novolac | 56 | phr | |
| Triphenylphosphine | 1 | phr | |
| Curing condition |
120°C/2h + 175°C/6h |
||
| Cured State Properties | |||
| Tg | 147 | °C |
Dynamic Mechanical Analysis |
| Elastic modulus@40°C | 1.6 | GPa |
Dynamic Mechanical Analysis |
| Elastic modulus@250°C | 18 | MPa |
Dynamic Mechanical Analysis |
| Coefficient of thermal elongation(α1) | 70 | ppm |
Thermo Mechanical Analysis |
| Coefficient of thermal elongation(α2) | 191 | ppm |
Thermo Mechanical Analysis |
| Td5 | 372 | °C |
Thermogravimetry-Differential, Thermal Analysis (Heating rate: 10°C/min, in air) |
Technical Details & Test Data
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™ YX4000 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.