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	Metric	English	Comments

Specific Gravity	1.35 g/cc	1.35 g/cc

Mechanical Properties	Metric	English	Comments
Tensile Modulus	21.0 GPa @Temperature 177 °C	3050 ksi @Temperature 351 °F	0°
	23.0 GPa @Temperature 132 °C	3340 ksi @Temperature 270 °F	0°
	28.0 GPa @Temperature 71.0 °C	4060 ksi @Temperature 160 °F	0°
	30.0 GPa @Temperature 24.0 °C	4350 ksi @Temperature 75.2 °F	0°
	31.0 GPa @Temperature -54.0 °C	4500 ksi @Temperature -65.2 °F	0°
Compressive Strength	165 MPa @Temperature 24.0 °C	23900 psi @Temperature 75.2 °F	Wet
	179 MPa @Temperature 71.0 °C	26000 psi @Temperature 160 °F
	214 MPa @Temperature 24.0 °C	31000 psi @Temperature 75.2 °F
	234 MPa @Temperature -54.0 °C	33900 psi @Temperature -65.2 °F
Compressive Modulus	26.0 GPa @Temperature 177 °C	3770 ksi @Temperature 351 °F
	29.0 GPa @Temperature 24.0 °C	4210 ksi @Temperature 75.2 °F
	30.0 GPa @Temperature 71.0 °C	4350 ksi @Temperature 160 °F
	30.0 GPa @Temperature 132 °C	4350 ksi @Temperature 270 °F
	30.0 GPa @Temperature -54.0 °C	4350 ksi @Temperature -65.2 °F
Shear Strength	10.3 MPa @Temperature 177 °C	1500 psi @Temperature 351 °F	Short Beam, wet
	13.8 MPa @Temperature 177 °C	2000 psi @Temperature 351 °F	Short Beam
	15.2 MPa @Temperature 132 °C	2200 psi @Temperature 270 °F	Short Beam, wet
	29.0 MPa @Temperature -54.0 °C	4200 psi @Temperature -65.2 °F	Short Beam
	29.6 MPa @Temperature 132 °C	4300 psi @Temperature 270 °F	Short Beam
	31.7 MPa @Temperature 71.0 °C	4600 psi @Temperature 160 °F	Short Beam, wet
	34.5 MPa @Temperature 24.0 °C	5000 psi @Temperature 75.2 °F	Short Beam, wet
	37.2 MPa @Temperature 24.0 °C	5400 psi @Temperature 75.2 °F	Short Beam
	40.0 MPa @Temperature 71.0 °C	5800 psi @Temperature 160 °F	Short Beam

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	149 °C	300 °F

Processing Properties	Metric	English	Comments
Processing Temperature	177 °C @Time 7200 sec	350 °F @Time 2.00 hour	Cure
Shelf Life	6.00 Month @Temperature -17.8 °C	6.00 Month @Temperature 0.000 °F

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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PCYTED092a / 234739

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