HYPOX® RF 928 N

HYPOX® RF 928 N Adduct is an epoxy phenol novolac resin toughened with a CTBN (carboxyl-terminated butadiene-acrylonitrile) co-polymer. With a low viscosity, a functionality of 2.3, and 20% elastomer content, it enhances toughness without significantly affecting Tg. Formulations with this adduct show improved impact, thermal cycling, peel, tensile shear strengths, and low-temperature properties. It also offers better chemical and heat resistance than DGEBA-toughened epoxies at the same rubber level.

Functions: Toughener, Toughener

Chemical Family: Chemical Mixtures & Blends

End Uses: Impact Resistant Coating

Processing Methods: Filament Winding, Laminating

  • TypeDocument Name
View All Documents

Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Chemical Family
Composite Materials Functions
Function
Toughener
Technologies
Product Families

Applications & Uses

Applicable Processes
Coating End Applications
Composites Processing Methods
Application Information
  • Adhesives
  • Laminating
  • Impact resistance coatings
  • Reinforcements
  • Filament winding
  • Molding compounds

Properties

Physical Form

Regulatory & Compliance

Technical Details & Test Data

Processing Information

Cured Properties - Mechanical Properties of CTBN-Toughened Epoxidized Phenol Novolac Resin

Formulation, pbw 1 2 3 4
EPALLOY® 8240 EPN 100 60 40 20
HYPOX® RF928 N - 50 75 100
OMICURE® DDA 10 6 6 6
OMICURE® U-52M 0.5 0.5 0.5 0.5
Rubber content, phr 0 10 15 20

 

Tensile at 25 °C 1 2 3 4
Strength, psi 12,900 10,400 8,920 4,710
Elongation, % 3.9 4.3 4 3.2
Modulus, psi x 10^5 4.7 4 3.3 2.4

 

Flexural at 25 °C 1 2 3 4
Strength, psi 19,000 15,100 13,100 6,900
Modulus, psi x 10^5 4.9 4 3.3 2.3

 

Fracture Toughness at 25 °C 1 2 3 4
K1c, MN/m1.5 (Fracture Strength) 1 2 2 2
G1c, J/m2 (Fracture Energy) 128 906 1,050 1,236

 

Thermal 1 2 3 4
Tg, °C (DSC) 137 127 121 123

 

Dynamic Mechanical Analysis 1 2 3 4
Loss Modulus, G ̋,
Low Temperature
Transition Peak, °C
No Peak -35 NT -25
Thermal Tg, °C 146 134 NT 132

 

Packaging & Availability

Regional Availability
  • Americas
  • Asia Pacific
  • EIMEA

Storage & Handling

Storage Information
  • HYPOX® RF928 N adduct should be stored in a dry place, in the sealed original containers, at temperatures between +2°C and +40°C (+35.6°F and +104°F).
  • Under these storage conditions, the product has a shelf life of 24 months (from date of manufacture).
  • The products should not be exposed to direct sunlight.

Other

Appearance
Clear, clean
Color (SDS)
Clear
Odor (SDS)
Slight
Physical Properties
ValueUnitsTest Method / Conditions
Density9.4-9.6 lb/gallb/galAt 25°C
Viscosity35000.0-75000.0 cPscPsAt 25°C