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jER YX7400N
jER™ YX7400N is a liquid type epoxy resin with excellent elasticity, impact resistance, rebound resilience and post-cure flexibility making it an excellent choice for consumer appliances and electronics, electrical devices, assemblies, parts and components, and various coatings.
jER™ YX7400N is a liquid type epoxy resin adduct formed from the reaction of epichlorohydrin and an aliphatic polyol. It contributes excelent elasticity and rebound resilience which help to improve the impact resistance when used in applications such as coatings, adhesives, composites and potting and encapsulation materials. It is capable of maintaining this flexibility after curing allowing forf use in consume appliances and electronics, electrical devices, assemblies, parts and components, electrical adhesives and impact modifiers.
Specifications
Epoxy equivalent weight (WPE): 400-500
Viscosity @ 25 ºC: 100-250 mPa.s
Appearance: Colorless-Yellow liquid
Density @ 25 ºC: 1.0 g/cm3
Cured State Properties
Tg: -57 ºC
Td5: 283 ºC
Tensile Modulus: 0.9 MPa
Tensile Strength: 0.2 MPa
Tensile Elongation: 20 MPa
Resilience @ 23 ºC: 84%
Cured State Properties Formulation
jER™ YX7400N: 100 phr
Bisphenol A Novolac: Equivalent to epoxy
group of YX7400N
Triphenylphosphine: 1 phr
Curing Condition: 80ºC/3hr + 140ºC/3hr
Features & Benefits
Elastic properties
Increases the impact resistance of coatings, adhesives, composites and potting and encapsulation materials
Rubbery elastic
Keep flexibility even after curing
Rebound resilience
Adduct formed from the reaction of epichlorohydrin and an aliphatic polyol
Excellent elasticity
Impact resistance
Problems Solved
Damage to coatings caused by exposure to weather, chemicals or water Resin shifting or distortion from water Cracking and surface defects of coatings used on flexible substrates
Applications
Increases the impact resistance of coatings, adhesives, composites and potting and encapsulation materials
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
Additives for stress relaxation (to avoid cracking, warpage)
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Thank you
Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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