jER™ YX7400N is an adduct formed from the reaction of epichlorohydrin and an aliphatic polyol.
Features
- Adduct formed from the reaction of epichlorohydrin and an aliphatic polyol
- Excellent elasticity
- Impact resistance
Applications
- Consumer appliances and electronics
- Electrical devices, assemblies, parts and components
- Electronics adhesives
- Electrical and electronic packaging and assembly
- Specialty and conformal coatings
- Potting compounds
- Printed circuit boards (PCBs)
- Semiconductor manufacturing
*jER™ is provided by Mitsubishi Chemical Corporation, a member of the Mitsubishi Chemical Group.
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Identification & Functionality
jER™ YX7400N Features & Benefits
- Highly adhesive to metal, porcelain, concrete
- Excellent insulation property
- High heat resistance
- High chemical resistance
- High water resistance
Applications & Uses
jER™ YX7400N is a liquid-type epoxy resin with elastic properties that increases the impact resistance of e.g. coatings, adhesives, composites and potting & encapsulation materials.
Properties
| Value | Units | Test Method / Conditions | |
| Density (at 25°C) | 1 | g/cm3 | Oscillation-Type Density |
| Value | Units | Test Method / Conditions | |
| Epoxy Equivalent Weight (WPE) | 400 - 500 | g/eq | Potentiometric Titration |
| Viscosity (at 25°C) | 100 - 250 | mPa.s | Brookfield viscometer |
| Value | Unit | Method | |
| jER™ YX7400N | 100 | phr | |
| Bisphenol A Novolac | Equivalent to epoxy group of YX7400N | phr | |
| Triphenylphosphine | 1 | phr | |
| curing condition |
80°C x 3h + 140°C x 3h |
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Cured State Properties |
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| Tg | -57 | °C |
Thermomechanical Analysis |
| Td5 | 283 | °C |
Thermogravimetry-Differential, Thermal Analysis (Heating rate: 10°C/min, in air) |
| Tensile Modulus | 0.9 | MPa | Autograph |
| Tensile Strength | 0.2 | MPa | Autograph |
| Tensile Elongation | 20 | MPa | Autograph |
| Resilience at 23°C | 84 | % |
Lupke Pendulum Type Resilience Test (JIS-K-6255) |
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™ YX7400N 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.