Park Aerospace E-752-MTS HTS45 UDT

Identification & Functionality

Chemical Family

Epoxy & Epoxy Derivatives

Polymer Name

Epoxy Resins & Compounds

Composite Materials Functions

Prepreg

Technologies

Composite Materials

Product Families

Composite Materials — Prepregs & Molding Compounds

Thermoset Prepregs

Features & Benefits

Materials Features

Tacky

Key Features & Benefits

• Autoclave, Out-of-Autoclave and Press Cure with low void content
• Service temperatures up to 270°F - Wet
• Controlled resin flow enables robust processing
• Optimized for medium level tack for hand lay-up and automated processes
• Used for both laminate and honeycomb core structures

Product Forms

• Available on a wide variety of reinforcements, including Fabrics and Unidirectional Tape available up to 60” (1.5m) wide
• Precision slit tape for Automated Fiber Placement (AFP) (0.250”), (0.125”) and other widths upon request
• Compatible with Autoclave, Vacuum Bag/Oven or Press Molding processes
• Data available for wide array of reinforcements including T800 12K UD, IMS65 12K UD, IM7 12K UD, HTS45 12K UD, AS4 3KPW, HTS40 3KPW, T830 6KPW, T830 6K8HS

Applications & Uses

Markets

Automotive & Transportation,

Industrial

Applications

Automotive & Transportation — Automotive

Interior

Industrial — Power, Water & Utilities

Renewable Energy

Automotive & Transportation — Transportation

Aerospace & Aviation

Composites End Use

Ducts,

Fairings,

Nacelles,

Wing Box,

Wing Ribs,

Wing Skins

Composites Processing Methods

Compression Molding,

Out of Autoclave Prepreg,

Prepreg Processing

Applications / Qualifications

• Primary and Secondary Aircraft Structures
• Control Surfaces
• Wings
• Fairings
• Nacelles / Thrust Reversers

Properties

Physical Properties

	Value	Units	Test Method / Conditions
Fabric Area Weight	145	gsm	—
Prepreg Resin Content	35	%	—
Resin Flow (350°F, 100psi, 20 min)	18	%	—
Volatiles (350°F, 8 min)	max. 0.5	%	—
Gel Time	600	Seconds	—
Dry Tg / Wet Tg	209 / 160	°C	—

Technical Details & Test Data

Processing Guidelines

E-752-MTS Resin Rheology Curve

OvenCure Cycle-
Apply 26-28”Hg vacuum - Increase from room temperature to 265 °F (129 °C) at a rate of 0.9-3.6 °F/min (0.5-2.0 °C/min)- Hold cure temperature for 4 hrs +/- 0.2 hrs- Cool down to 150 °F prior to removalOptional Free Standing Post Cure- Increase from 265 °F to 365 °F (129 °C to 185 °C) at a rate of 0.9-3.6 °F/min (0.5-2.0 °C/min)- Hold cure temperature for 120 to 130 minutes- Cool down to 150 °F prior to removal.

E-752-MTS Out-of-Autoclave and Autoclave Example Cure Cycles

Autoclave Cure Cycle-
Apply 28”Hg vacuum and 15 psi pressure (1 bar)- Increase from room temperature to 230 °F (110 °C) at a rate of 0.9-3.6 °F/min (0.5-2.0 °C/min)- Vent Vacuum when temperature reaches 212 °F (100°C)- Increase pressure from 15 psi to 45 psi (1 bar to 3.1 bar)- Increase from 230 °F to 350 °F (110 °C to 177 °C) at a rate of 0.9-3.6 °F/min (0.5-2.0 °C/min)- Hold cure temperature for 120 to 150 minutes- Cool down to 150 °F and relieve pressure prior to removal

Mechanical Properties

Property	Lay-up	Condition	HTS45
			35%/145gsm UDT
Dry DMA Tg °C	0°	Dry	209
Wet DMA Tg °C	0°	Wet	160
Tension Strength, ksi	0°	RTD	300
		-75°F	289
		250°F - Dry	300
		250°F - Wet	271
	90°	RTD	7.8
		-75°F	7.8
		250°F - Wet	3.7
Tension Modulus, Msi	0°	RTD	18.2
		-75°F	17.9
		250°F - Dry	18.3
		250°F - Wet	18.8
	90°	RTD	1.28
		-75°F	1.49
		250°F - Wet	0.8
Compression Strength, ksi	0°	RTD	242
		-75°F	208
		250°F - Dry	212
		250°F - Wet	156
	90°	RTD	42
		250°F - Wet	29
Compression Modulus, Msi	0°	RTD	17.7
		-75°F	17.6
		250°F - Dry	18.2
		250°F - Wet	18.0
	90°	RTD	1.6
		250°F - Wet	1.2
IPS-Str, ksi	[+45°/-45°]2s	RTD	23.8
IPS-Mod, ksi	[+45°/-45°]2s	RTD	0.63
ILSS, ksi	0°	RTD	13.4
G1c, in-psi	0°	RTD	1.3
UNT-Str, ksi	QI Balanced	RTD	114
OHT-Str, ksi	QI Balanced	RTD	54
		-75°F	52
UNC-Str, ksi	QI Balanced	RTD	98
		250°F - Wet	70
OHC-Str, ksi	QI Balanced	RTD	56
		250°F - Wet	39
CAI, ksi (1500 in-lb/in)	QI Balanced	RTD	28