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Park Electrochemical Nelcote® E-752 Epoxy Prepreg, IM7 Unitape Reinforced

Category Polymer , Thermoset , Epoxy
Manufacturer Park Electrochemical Corp.
Trade Name Nelcote®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Park Electrochemical Nelcote® E-752 Epoxy Prepreg, IM7 Unitape Reinforced.pdf
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Material Notes:
Nelcote® E-752 is a toughened, 185°C cure epoxy system designed for demanding structural applications up to 130°C. E-752 offers a good balance of toughness, high service temperature and good moisture resistance, as well as excellent tack and drape. Formulated for both oven and autoclave cure, E-752 provides for easy processing with oven cure, without sacrificing mechanical properties.Key Features and Benefits:Specifically designed to allow both oven cure and autoclave cureAllows oven curing without sacrificing mechanical propertiesService temperatures up to 130°CControlled flow for ease of processingFlexible cure temperature 132°C to 185°CGood mechanical properties can be achieved through oven curing at 132°C, followed by post-cure at 185°CSelf-adhesive grade for sandwich panel applicationsApplications/Qualifications:Primary and Secondary Aircraft StructuresDuctingFairingsNacellesInformation provided by Park Electrochemical Corp.
Physical Properties Metric English Comments
Volatiles <= 1.9 %

@Temperature 135 °C
<= 1.9 %

@Temperature 275 °F
8 min
Mechanical Properties Metric English Comments
Tensile Strength, Yield 2340 MPa

@Temperature 23.9 °C
340000 psi

@Temperature 75.0 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
2410 MPa

@Temperature 121 °C
350000 psi

@Temperature 250 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
2450 MPa

@Temperature 121 °C
356000 psi

@Temperature 250 °F
0° Direction, Wet, 365° Autoclave Cured; ASTM D3039
Tensile Modulus 161 GPa

@Temperature 23.9 °C
23400 ksi

@Temperature 75.0 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
167 GPa

@Temperature 121 °C
24200 ksi

@Temperature 250 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
170 GPa

@Temperature 121 °C
24600 ksi

@Temperature 250 °F
0° Direction, Wet, 365° Autoclave Cured; ASTM D3039
Compressive Strength 1020 MPa

@Temperature 121 °C
148000 psi

@Temperature 250 °F
Wet, 365° Autoclave Cured; SACMA 1R-94
1310 MPa

@Temperature 121 °C
190000 psi

@Temperature 250 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
1820 MPa

@Temperature 23.9 °C
264000 psi

@Temperature 75.0 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
Compressive Modulus 145 GPa

@Temperature 23.9 °C
21100 ksi

@Temperature 75.0 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
157 GPa

@Temperature 121 °C
22800 ksi

@Temperature 250 °F
Wet, 365° Autoclave Cured; SACMA 1R-94
188 GPa

@Temperature 121 °C
27200 ksi

@Temperature 250 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
Shear Modulus 4.76 GPa

@Temperature 23.9 °C
690 ksi

@Temperature 75.0 °F
In-Plane, Dry, 365° Autoclave Cured; ASTM D3518
Shear Strength 91.0 MPa

@Temperature 23.9 °C
13200 psi

@Temperature 75.0 °F
In-Plane, Dry, 365° Autoclave Cured; ASTM D3518
Thermal Properties Metric English Comments
Glass Transition Temp, Tg 170 °C
338 °F
Wet; DMA
190 °C
374 °F
Dry; DMA
Processing Properties Metric English Comments
Gel Time 5.00 - 12.0 min
5.00 - 12.0 min
Shelf Life 12.0 Month

@Temperature -17.8 °C
12.0 Month

@Temperature 0.000 °F
Descriptive Properties Value Comments
Fabric Area Weight (g/m²) 120-300
Prepreg Resin Content (%) 32-38
Resin Flow (%) 6-20
275°F, 50psi
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