Solvay CYCOM® PR 520 RTM Resin System

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Solvay CYCOM® PR 520 RTM Resin System (discontinued **)
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Description: CYCOM® PR 520 RTM is a one-part, 180°C (355°F) curing epoxy resin system offering superior damage tolerance and good strain to failure required for composite primary structure applications. The value of resin infusion is the ability to design complex geometric parts while leveraging a unitized structure which ultimately leads to a reduction in weight, lower part counts and the elimination of many post-manufacturing processes. CYCOM PR 520 RTM is an off-white thick paste at room temperature reducing to a low viscosity when heated for injection. The resin has a low enough viscosity to allow injection at 90 – 100°C (194 – 212°F). Following injection, the resin viscosity decreases with increasing tool temperature to below 50 cP, thus helping to ensure full fiber wetting. CYCOM PR 520 RTM resin is fully cured following a 2-hour dwell at 180°C (355°F) after which it has a continuous hot/wet service temperature of 104°C (220°F). For reinforcement preforming operations, a fully compatible binder system, CYCOM® 7720 RTM, and a low areal weight film, PR 520-1, have been developed for use with CYCOM PR 520 RTM. The binder and low areal weight film are available pre-coated onto fabrics of the customer’s choice. A separate datasheet for CYCOM 7720 RTM is available upon request. Features & Benefits: One-part epoxy resin system 30 day out-life at room temperature Two year shelf-life at -18°C (0°F) Low exotherm, i.e., thick part production capable ~500 cP initial injection viscosity <30 cP minimum viscosity Full cure after 2 hours at 180°C (355°F) Continuous hot/wet service performance >104°C (220°F) Low moisture absorption, ~0.6% High resin toughness Fully compatible binder available Applications: Primary structure applications requiring superior toughness Engine Blades Engine Blade Spacers/Platforms Containment Cases Outer Guide Vanes Hinge/Brackets/Fittings Information provided by Cytec, subsequently acquired by Solvay.
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Physical Properties	Original Value	Comments

Density	1.25 g/cc	Cured Neat Resin

Mechanical Properties	Original Value	Comments
Tensile Strength	11900 psi	Neat Resin
	56400 psi	Open Hole
	137000 psi	Warp
Elongation at Break	3.0 %	Neat Resin
Tensile Modulus	4.00 GPa	Neat Resin
	75.8 GPa	Warp
Flexural Strength	22200 psi	Neat Resin
Flexural Modulus	3.50 GPa	Neat Resin
Compressive Strength	128 MPa	Neat Resin
	329 MPa	After 11.8 J/mm Impact
	374 MPa	After 8.3 J/mm Impact
	396 MPa	After 7.0 J/mm Impact
	432 MPa	After 4.5 J/mm Impact
	814 MPa	Warp
	203 MPa @Temperature 225 °C	Open Hole, wet
	238 MPa @Temperature 185 °C	Open Hole, wet
	319 MPa @Temperature 24.0 °C	Open Hole
Compressive Modulus	3700 MPa	Neat Resin
	63400 MPa	Warp
Bearing Yield Strength	910 MPa
Poissons Ratio	0.398	Neat Resin
Fracture Toughness	2.20 MPa-m½	SENB KIC, Neat Resin
Shear Modulus	0.800 GPa	Neat Resin
	3.60 GPa @Temperature 225 °C	In-plane, wet
	5.70 GPa @Temperature 24.0 °C	In-plane
Shear Strength	8900 psi	Neat Resin
	16300 psi @Temperature 24.0 °C	In-plane
	71200 psi @Temperature 225 °C	In-plane, wet

Thermal Properties	Original Value	Comments
CTE, linear	52.9 µm/m-°C	by TMA
Maximum Service Temperature, Air	104 °C	continuous hot/wet
Glass Transition Temp, Tg	161 °C	Neat Resin

**
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PCYTED093 / 180395

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