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Ensinger PEI

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Park Aerospace Nelcote® V-376 Cyanate Ester Epoxy Prepregs, 7781 E-Glass Reinforced
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® V-376 is a Cyanate Ester matrix providing excellent electrical and mechanical properties for harsh aircraft, shipboard, and undersea applications for Radomes, Antenna, and Reflectors. Simple processing and good handling characteristics make V-376 an ideal alternative to BMI and polyimide resin systems. GC110 LM qualified specifications.

Key Features and Benefits:

  • Cyanate Ester resin provides outstanding electrical properties (Dk, Df)
  • Excellent Moisture resistance properties
  • Simplified handling and processing characteristics
  • Minimal degradation of mechanical properties in Hot/Wet environments
  • Self-Adhesive to many types of foam and honeycomb core

Applications/Qualifications:

  • Radomes
  • Reflectors
  • Antenna
  • Signature Control

Information provided by Park Electrochemical Corp.

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Physical PropertiesOriginal ValueComments
Volatiles <= 2.0 %
Water Absorption 0.67 %by weight; 14 day soak at 160°F
Thickness 0.00900 milcured laminate, per ply
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 52000 psi
@Temperature 149 °C
0° Direction, Dry; ASTM D638
 56000 psi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638
Tensile Modulus 3100 ksi
@Temperature 23.9 °C
Dry; ASTM D638
 3200 ksi
@Temperature 149 °C
Dry; ASTM D638
Flexural Strength 81.0 ksi
@Temperature 149 °C
0° Direction, Dry; ASTM D790
 90.0 ksi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D790
Flexural Modulus 3100 ksi
@Temperature 149 °C
0° Direction, Dry; ASTM D790
 3400 ksi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D790
Compressive Strength 50.0 ksi
@Temperature 149 °C
Dry; ASTM D695
 58.0 ksi
@Temperature 23.9 °C
Dry; ASTM D695
Shear Strength 11.9 ksi
@Temperature 149 °C
Short Beam; Dry; ASTM D2344
 16.7 ksi
@Temperature 23.9 °C
Short Beam; Dry; ASTM D2344
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 4.0
@Frequency 9.375e+9 Hz
Dissipation Factor 0.011
@Frequency 9.375e+9 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 28.9 µin/in-°FZ-Axis
Glass Transition Temp, Tg 148 °CDMA; without post-cure
 178 °CDMA; with post-cure
 
Processing PropertiesOriginal ValueComments
Gel Time 0.800 - 2.50 min
@Temperature 135 °C
Shelf Life 12.0 Month
@Temperature -17.8 °C
 
Descriptive Properties
Fabric Area Weight (g/m²)303
Resin Flow (%)8-28325°F, 50psi
Resin Solids Content (%)36-42

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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