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Park Electrochemical Nelcote® E-765 Epoxy Prepreg, 7781 E-Glass Reinforced

Category Polymer , Thermoset , Epoxy
Manufacturer Park Electrochemical Corp.
Trade Name Nelcote®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Park Electrochemical Nelcote® E-765 Epoxy Prepreg, 7781 E-Glass Reinforced.pdf
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Material Notes:
Nelcote® E-765 is a tough 250°F cure prepreg system designed to replace 350°F cure systems in aircraft structural applications. FAA-approved Design Allowable Databases are available upon request.Key Features and Benefits:Designed to replace first generation 350°F (176°C) cure systems.Wide cure temperature process window of 250°F to 350°FExhibits very low void content, i.e.,
Physical Properties Metric English Comments
Volatiles <= 1.5 %
<= 1.5 %
Thickness 229 microns
9.00 mil
cured, per ply
Mechanical Properties Metric English Comments
Tensile Strength, Yield 345 MPa

@Temperature 82.2 °C
 50000 psi

@Temperature 180 °F
 0° Direction, Wet; Vacuum/Oven Cured; ASTM D3039-95
421 MPa

@Temperature 82.2 °C
 61000 psi

@Temperature 180 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
448 MPa

@Temperature 21.1 °C
 65000 psi

@Temperature 70.0 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
503 MPa

@Temperature -53.9 °C
 73000 psi

@Temperature -65.0 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
Tensile Modulus 23.4 GPa

@Temperature 82.2 °C
 3400 ksi

@Temperature 180 °F
 0° Direction, Wet; Vacuum/Oven Cured; ASTM D3039-95
24.8 GPa

@Temperature 82.2 °C
 3600 ksi

@Temperature 180 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
25.5 GPa

@Temperature 21.1 °C
 3700 ksi

@Temperature 70.0 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
26.9 GPa

@Temperature -53.9 °C
 3900 ksi

@Temperature -65.0 °F
 0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
Compressive Strength 359 MPa

@Temperature 82.2 °C
 52000 psi

@Temperature 180 °F
 Wet; Vacuum/Oven Cured; SACMA 1-94
421 MPa

@Temperature 82.2 °C
 61000 psi

@Temperature 180 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
503 MPa

@Temperature 21.1 °C
 73000 psi

@Temperature 70.0 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
586 MPa

@Temperature -53.9 °C
 85000 psi

@Temperature -65.0 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
Compressive Modulus 25.5 GPa

@Temperature 82.2 °C
 3700 ksi

@Temperature 180 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
25.5 GPa

@Temperature 82.2 °C
 3700 ksi

@Temperature 180 °F
 Wet; Vacuum/Oven Cured; SACMA 1-94
26.2 GPa

@Temperature 21.1 °C
 3800 ksi

@Temperature 70.0 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
28.3 GPa

@Temperature -53.9 °C
 4100 ksi

@Temperature -65.0 °F
 Dry; Vacuum/Oven Cured; SACMA 1-94
Shear Strength 32.4 MPa

@Temperature 82.2 °C
 4700 psi

@Temperature 180 °F
 Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
48.3 MPa

@Temperature 82.2 °C
 7000 psi

@Temperature 180 °F
 Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
55.8 MPa

@Temperature 21.1 °C
 8100 psi

@Temperature 70.0 °F
 Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
67.6 MPa

@Temperature -53.9 °C
 9800 psi

@Temperature -65.0 °F
 Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
82.0 MPa

@Temperature 82.2 °C
 11900 psi

@Temperature 180 °F
 Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
105 MPa

@Temperature 82.2 °C
 15200 psi

@Temperature 180 °F
 Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
131 MPa

@Temperature 21.1 °C
 19000 psi

@Temperature 70.0 °F
 Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
163 MPa

@Temperature -53.9 °C
 23700 psi

@Temperature -65.0 °F
 Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
Thermal Properties Metric English Comments
Glass Transition Temp, Tg 165 °C
329 °F
Dry; DMA
Electrical Properties Metric English Comments
Dielectric Constant 4.5

@Frequency 9.375e+9 Hz
 4.5

@Frequency 9.375e+9 Hz
Dissipation Factor 0.020

@Frequency 9.375e+9 Hz
 0.020

@Frequency 9.375e+9 Hz
Processing Properties Metric English Comments
Gel Time 5.00 min

@Temperature 135 °C
 5.00 min

@Temperature 275 °F
Shelf Life 6.00 Month

@Temperature -17.8 °C
 6.00 Month

@Temperature 0.000 °F
Descriptive Properties Value Comments
Fabric Area Weight (g/m²) 303
Prepreg Resin Content (%) 38
Resin Flow (%) 9-21
275°F, 15psi
Tack Light-Medium
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