Solvay CYCOM® 977-20 Resin System with PRIFORM™ Technology

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Solvay CYCOM® 977-20 Resin System with PRIFORM™ Technology (discontinued **)
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Description: CYCOM® 977-20 RTM with PRIFORM™ Technology is a 177°C (350°F) curing toughened liquid epoxy resin system. CYCOM 977-20 RTM with PRIFORM Technology is formulated as the RTM version of Cytec Engineered Materials’ established CYCOM® 977-2 toughened epoxy prepreg resin. CYCOM 977-2 is widely used in many aerospace applications including primary and secondary aircraft structures, space and ballistics structures or any application requiring excellent impact resistance. CYCOM 977-20 RTM resin has a low viscosity to allow injection at temperatures between 60°C and 85°C (140°F and 185°F) without the need for excessive heating of resin transfer pipe work or high injection pressures. After injection, the resin viscosity decreases to below 50 cP, thus helping to ensure full fiber wetting. CYCOM 977-20 RTM resin is fully cured following a three-hour dwell at 177°C (350°F) after which it has a service temperature of 135°C (275°F). CYCOM 977-20 RTM resin must be used in conjunction with Cytec Engineered Materials’ patented PRIFORM hybrid fabrics in order to achieve cured performance properties equivalent to CYCOM 977-2 prepreg materials. The unique self-binding aspect of PRIFORM reinforcements removes the need for ancillary binder products and allows the manufacture of high quality preforms. The level of self-binding can be tailored from lightly stabilized, to aid cutting and handling of single plies, to highly compacted for high fiber volume preform construction. Features & Benefits: One part system; liquid at room temperature RTM version of CYCOM 977-2 prepreg resin; suitable for primary aircraft structure Excellent compression strength Excellent compression strength after impact Highest FST properties of all structural epoxy based composites Injectable at 60°C to 85°C (140°F to 185°F) Less than 200 cP initial injection viscosity Minimum viscosity < 50 cP 177°C (350°F) cure giving service temperature of 135°C (275°F) Shelf life of 12 months at -18°C (0°F) and out life of 30 days at 22°C (72°F) Information provided by Cytec, subsequently acquired by Solvay.
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Mechanical Properties	Original Value	Comments

Tensile Strength	44000 psi @Temperature 24.0 °C	6K HTA 5HS 370 gms
	111000 psi @Temperature 24.0 °C	6K HTA 5HS 370 gms
	128000 psi @Temperature 70.0 °C	wet, 6K HTA 5HS 370 gms
	152000 psi @Temperature 24.0 °C	24K IMS WNCF 550 gsm
	176000 psi @Temperature 70.0 °C	wet, 24K IMS WNCF 550 gsm
	307000 psi @Temperature 24.0 °C	24K IMS UW 200 gsm
Tensile Modulus	71.0 GPa @Temperature 24.0 °C	6K HTA 5HS 370 gms
	72.0 GPa @Temperature 70.0 °C	wet, 6K HTA 5HS 370 gms
	82.0 GPa @Temperature 70.0 °C	wet, 24K IMS WNCF 550 gsm
	85.0 GPa @Temperature 24.0 °C	24K IMS WNCF 550 gsm
	163 GPa @Temperature 24.0 °C	24K IMS UW 200 gsm
Compressive Strength	227 MPa @Temperature 24.0 °C	After 25J Impact, 24K IMS WNCF 550 gsm
	254 MPa @Temperature 24.0 °C	Open Hole, wet, 6K HTA 5HS 370 gms
	269 MPa @Temperature 24.0 °C	After 25J Impact, 6K HTA 5HS 370 gms
	272 MPa @Temperature 24.0 °C	Open Hole, wet, 24K IMS WNCF 550 gsm
	279 MPa @Temperature 70.0 °C	Open Hole, 6K HTA 5HS 370 gms
	316 MPa @Temperature 70.0 °C	Open Hole, 24K IMS WNCF 550 gsm
	481 MPa @Temperature 70.0 °C	wet, 6K HTA 5HS 370 gms
	602 MPa @Temperature 24.0 °C	6K HTA 5HS 370 gms
	679 MPa @Temperature 70.0 °C	wet, 24K IMS WNCF 550 gsm
	853 MPa @Temperature 24.0 °C	24K IMS WNCF 550 gsm
	1379 MPa @Temperature 24.0 °C	24K IMS UW 200 gsm
Compressive Modulus	61000 MPa @Temperature 70.0 °C	wet, 6K HTA 5HS 370 gms
	62000 MPa @Temperature 24.0 °C	6K HTA 5HS 370 gms
	85000 MPa @Temperature 24.0 °C	24K IMS WNCF 550 gsm
	85000 MPa @Temperature 70.0 °C	wet, 24K IMS WNCF 550 gsm
	144000 MPa @Temperature 24.0 °C	24K IMS UW 200 gsm
Shear Modulus	4.30 GPa @Temperature 70.0 °C	In-plane, wet, 6K HTA 5HS 370 gms
	4.40 GPa @Temperature 70.0 °C	In-plane, wet, 24K IMS WNCF 550 gsm
	4.80 GPa @Temperature 24.0 °C	In-plane, 6K HTA 5HS 370 gms
	5.00 GPa @Temperature 24.0 °C	In-plane, 24K IMS WNCF 550 gsm
Shear Strength	8000 psi @Temperature 70.0 °C	Apparent Interlaminar, wet, 6K HTA 5HS 370 gms
	9000 psi @Temperature 24.0 °C	Apparent Interlaminar, 24K IMS WNCF 550 gsm
	10000 psi @Temperature 70.0 °C	In-plane, wet, 24K IMS WNCF 550 gsm
	11000 psi @Temperature 24.0 °C	In-plane, 24K IMS WNCF 550 gsm
	11000 psi @Temperature 24.0 °C	Apparent Interlaminar, 6K HTA 5HS 370 gms
	13000 psi @Temperature 70.0 °C	In-plane, wet, 6K HTA 5HS 370 gms
	14000 psi @Temperature 24.0 °C	Apparent Interlaminar, 24K IMS UW 200 gsm
	15000 psi @Temperature 24.0 °C	In-plane, 6K HTA 5HS 370 gms

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	135 °C
Glass Transition Temp, Tg	154 °C	E' modulus intercept, wet
	176 °C	peak tan, wet
	199 °C	E' modulus intercept
	218 °C	peak tan

**
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PCYTED090 / 180392

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