Solvay CYCOM® 754 Epoxy Resin

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Solvay CYCOM® 754 Epoxy Resin
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Cycom® 754 has been developed to provide long out-life at ambient temperatures, combined with excellent mechanical properties generated at low cure temperatures. Cycom® 754 is a modified epoxy resin which has been specifically developed for versatile cures under vacuum only conditions; it can also be cured under pressure if required. The cure cycle can be adapted to suit the application, provided a full cure is eventually obtained – if a structure such as a hull needs to be cured in various stages, a partial cure can be done for the initial steps, provided the final laminate schedule undergoes a full cure cycle. This will not reduce the mechanical properties of the structure in any way. FM® 754 is an adhesive film that has been developed to co-cure with the Cycom® 754 prepregs. It can also be used for secondary bonding applications where necessary. Features & Benefits: Minimum 21 days out-life at ambient temperature Versatile cure from 70°C (160°F) upwards, depending on application Developed for vacuum only curing, but can also be cured under pressure Excellent handling characteristics Optimized flow and drape characteristics Low density epoxy formulation Available as unidirectional tape and fabric prepregs with a co-curable adhesive film Cycom® 754 - 36% - HS - 200 – 300 Information provided by Cytec, subsequently acquired by Solvay.
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Mechanical Properties	Original Value	Comments

Tensile Strength	316000 psi	Cure Cycle : 6 Hours at 75°C
Tensile Modulus	121 GPa	Cure Cycle : 6 Hours at 75°C
Flexural Strength	234000 psi	Cure cycle: 5 hrs at 80°C
	243000 psi	Cure cycle: 8 hrs at 70°C
	145000 psi @Temperature 70.0 °C	Cure Cycle : 6 Hours at 75°C
	320000 psi @Temperature 24.0 °C	Cure Cycle : 6 Hours at 75°C
Flexural Modulus	100 GPa	Cure cycle: 5 hrs at 80°C
	103 GPa	Cure cycle: 8 hrs at 70°C
	113 GPa @Temperature 70.0 °C	Cure Cycle : 6 Hours at 75°C
	115 GPa @Temperature 24.0 °C	Cure Cycle : 6 Hours at 75°C
Compressive Strength	1100 MPa	Cure cycle: 5 hrs at 80°C
	1150 MPa	Cure cycle: 8 hrs at 70°C
	950 MPa @Temperature 70.0 °C	Cure Cycle : 6 Hours at 75°C
	1200 MPa @Temperature 24.0 °C	Cure Cycle : 6 Hours at 75°C
Compressive Modulus	115000 MPa @Temperature 70.0 °C	Cure Cycle : 6 Hours at 75°C
	120000 MPa @Temperature 24.0 °C	Cure Cycle : 6 Hours at 75°C
Shear Modulus	3.80 GPa	In plane, Cure Cycle : 6 Hours at 75°C
Shear Strength	10100 psi	Interlaminar, Cure cycle: 8 hrs at 70°C
	10100 psi	Interlaminar, Cure cycle: 5 hrs at 80°C
	10900 psi	In-plane, Cure Cycle : 6 Hours at 75°C
	10200 psi @Temperature 24.0 °C	Interlaminar, Cure Cycle : 6 Hours at 75°C
	36000 psi @Temperature 70.0 °C	Interlaminar, Cure Cycle : 6 Hours at 75°C

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	92.0 °C	Cure cycle: 8 hrs at 70°C
	96.9 °C	Cure cycle: 6 hrs at 75°C
	99.0 °C	Cure cycle: 6 hrs at 75°C, 1 hr dwell at 50°C
	100 °C	Cure cycle: 6 hrs at 75°C, 3 hr dwell at 50°C
	101 °C	Cure cycle: 5 hrs at 80°C
	117.6 °C	Cure cycle: 4 hrs at 90°C, 2 hr dwell at 50°C

Processing Properties	Original Value	Comments
Cure Time	4.00 hour @Temperature 90.0 °C	2 hr dwell at 50°C
	5.00 hour @Temperature 80.0 °C
	6.00 hour @Temperature 75.0 °C
	6.00 hour @Temperature 75.0 °C	1 hr dwell at 50°C
	6.00 hour @Temperature 75.0 °C	3 hr dwell at 50°C
	8.00 hour @Temperature 70.0 °C

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PCYTED185 / 180487

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