Solvay CYCOM® 985 Epoxy + Kevlar 49 Fiber Laminate

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Solvay CYCOM® 985 Epoxy + Kevlar 49 Fiber Laminate
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	CYCOM® 985 is a 350°F (177°C) curing epoxy resin system. CYCOM 985 is designed for use where a balance of performance and processing characteristics is required. It has excellent structural performance and good impact resistance. CYCOM 985 is co-curable with structural adhesives and will produce outstanding thin-skinned sandwich structures. CYCOM 985 allows thick section construction without exotherm problems. Optimum properties are achieved by curing under autoclave pressure from 45 to 100 psi (as appropriate to panel configuration) at 350°F (177°C) for two hours. CYCOM 985 prepregs have good tack and drape and an out-time of two weeks at room temperature. Features & Benefits: Modified epoxy system Excellent hot/wet strength retention 350°F (177°C) cure Good impact resistance 300°F (149°C) service temperature Controlled flow Ease of processing Good tack and drape 14 day shop life Shelf life of 6 months at 0°F (-18°C) Applications: Primary and secondary aircraft structures Mechanical property data for 985 epoxy with 10 ply laminate with 50% fiber volume Kevlar 49 Fiber K-285. Information provided by Cytec, subsequently acquired by Solvay.
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Physical Properties	Original Value	Comments

Specific Gravity	1.35 g/cc

Mechanical Properties	Original Value	Comments
Tensile Modulus	21.0 GPa @Temperature 177 °C	0°
	23.0 GPa @Temperature 132 °C	0°
	28.0 GPa @Temperature 71.0 °C	0°
	30.0 GPa @Temperature 24.0 °C	0°
	31.0 GPa @Temperature -54.0 °C	0°
Compressive Strength	165 MPa @Temperature 24.0 °C	Wet
	179 MPa @Temperature 71.0 °C
	214 MPa @Temperature 24.0 °C
	234 MPa @Temperature -54.0 °C
Compressive Modulus	26000 MPa @Temperature 177 °C
	29000 MPa @Temperature 24.0 °C
	30000 MPa @Temperature 71.0 °C
	30000 MPa @Temperature 132 °C
	30000 MPa @Temperature -54.0 °C
Shear Strength	1500 psi @Temperature 177 °C	Short Beam, wet
	2000 psi @Temperature 177 °C	Short Beam
	2200 psi @Temperature 132 °C	Short Beam, wet
	4200 psi @Temperature -54.0 °C	Short Beam
	4300 psi @Temperature 132 °C	Short Beam
	4600 psi @Temperature 71.0 °C	Short Beam, wet
	5000 psi @Temperature 24.0 °C	Short Beam, wet
	5400 psi @Temperature 24.0 °C	Short Beam
	5800 psi @Temperature 71.0 °C	Short Beam

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	149 °C

Processing Properties	Original Value	Comments
Processing Temperature	350 °F @Time 7200 sec	Cure
Shelf Life	6.00 Month @Temperature -17.8 °C

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PCYTED092a / 234739

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