CYCOM 7714A EPOXY RESIN

Transcription

1 DESCRIPTION CYCOM 7714A resin is a 250 F (121 C) curing epoxy resin with 160 F (71 C) wet service temperature capability. CYCOM 7714A is formulated for autoclave processing but has been successfully processed by press molding. Unidirectional tape and woven fabric impregnated with CYCOM 7714A resin will retain excellent tack and drape for at least 10 days at 72 F (22 C). Standard cure cycle is two hours at 250 F (121 C). No post cure is required for 160 F (71 C) wet service capability. CYCOM 7714A can be impregnated via solution and hot melt techniques on all available fibers and fabrics. FEATURES & BENEFITS 250 F (121 C) cure Available on fabric, tape and roving Large industry database Flame retardant 200 F (93 C) dry service temperature 160 F (71 C) wet service temperature Laminate and sandwich panel usage Autoclave and press mold processing Used as selfadhesive system Cocurable with CYCOM 7701, CYCOM 7714 and CYCOM 97714A resins Meets all NASA outgassing requirements Shelf life of 6 months at 0 F (18 C), 10 days at 72 F (22 C) SUGGESTED APPLICATIONS Aircraft interiors Seats and control surfaces UAV and secondary structure A E C M 00044

2 CHARACTERISTICS Figure 1 CYCOM 7714A Viscosity Profile: Straight Heatup Cure Cycle to 250 F (121 C) Figure 2 CYCOM 7714A Viscosity Profile: Heat up to 175 F (79 C), hold for 15 minutes, heat up to 250 F (121 C) 2 A E C M

3 Figure 3 CYCOM 7714A Gel Time vs. Temperature: Data gathered during isothermal viscosity testing Cured Resin Density: g/cc 3 A E C M

4 PROPERTIES Table 1 Typical Properties: Unidirectional Tape and Roving, Standard Modulus Carbon Fiber [33Msi (228 GPa) Typical Cytec Engineered Materials product code: CYCOM 7714A/T300, CYCOM 7714A/G30500, CYCOM 7714A/T65035, HYE 35714AH Mechanical Properties Test Temperature 65 F (54 C) Room Temp. 160 F (71 C) 0 Tensile Properties Failure Strain, % ( ) ( ) ( ) ( ) ( ) (97 159) Compressive Properties ( ) ( ) (76 138) 0 Flexural Properties ( ) (97 117) 0 Interlaminar Shear Properties (90 117) (76 90) 7 11 (48 76) Property values listed are typical for laminates with 57 63% fiber volume. 4 A E C M

5 Table 2 Typical Properties: Unidirectional Tape, High Modulus Carbon Fiber [63 Msi (436 GPa)] Typical Cytec Engineered Materials product code: CYCOM 7714A/M46J Mechanical Properties 8 0 Tensile Properties 3 Strength, ksi (MPa) Modulus, Msi (GPa) 0 Compressive Properties Strength, ksi (MPa) Modulus, Msi (GPa) 0 Interlaminar Shear Properties 2 Test Temperature 100 F (73 C) Room Temp. 160 F (71 C) 160 F (71 C) wet ( ) ( ) ( ) ( ) ( ) ( ) (69 90) Compression After Impact (CAI) ( ) ( ) Open Hole Compression ( ) ( ) ( ) ( ) Filled Hole Compression ( ) ( ) ( ) ( ) 1 SACMA SRM 1 2 ASTM D ASTM D BSS ASTM D ASTM D Wet = water immersion for 6 days at 160 F (71 C) 8 Property values listed are typical for laminates with 57 59% fiber volume. 5 A E C M

6 Table 3 Typical Properties: Plain Weave (PW) Fabric, Standard Modulus Carbon Fiber [33 Msi (228 GPa)] Typical Cytec Engineered Materials product code: CYCOM 7714A/PW T300, CYCOM 7714A/PW G30500 Test Temperature Mechanical Property 65 F (54 C) Room Temp. 160 F (71 C) 0 Tensile Properties ( ) 7 10 (48 69) 0 Compressive Properties ( ) ( ) Flatwise Strength Properties Strength, psi (MPa) (3 5) 0 Interlaminar Shear Properties (69 90) 8 11 (55 76) Property values listed are typical for laminates with 55 60% fiber volume. Table 4 Typical Properties: Five Harness Satin (5HS) Fabric, Standard Modulus Carbon Fiber [33 Msi (228 GPa) Typical Cytec Engineered Materials product code: CYCOM 7714A/5HS T645035, CYCOM 7714A/5HS T300, HMF 2494/7714A Mechanical Property 2 Room Temp. 160 F (71 C) wet 1 0 Tensile Properties Failure Strain % 0 Compressive Properties ( ) (62 72) ( ) 8 11 (55 76) ( ) 8 11 (55 76) Interlaminar Shear Properties 9 12 (62 83) 2 5 (14 34) 1 Wet = water immersion for 14 days at 160 F (71 C) 2 Property values listed are typical for laminates with 55 60% fiber volume. 6 A E C M

7 Table 5 Typical Properties: Eight Harness Satin (8HS) Fabric, Standard Modulus Carbon Fiber [33 Msi (228 GPa) Typical Cytec Engineered Materials product code: HMF 133/7714A, HMF 2493/7714A Mechanical Properties 2 Test Temperature 67 F (55 C) Room Temp. 158 F (70 C) 158 F (70 C) wet 1 0 Tensile Properties 3 Strength, ksi (MPa) Modulus, Msi (GPa) Failure Strain, % ( ) ( ) 8 11 (55 76) ( ) 7 10 (48 69) ( ) 7 10 (48 69) Compressive Properties Strength, ksi (MPa) ( ) ( ) ( ) ( ) Modulus, Msi (GPa) (52 69) 8 10 (55 69) (52 69) (52 69) 0 Flexural Properties Strength, ksi (MPa) ( ) ( ) ( ) ( ) Modulus, Msi (GPa) 7 9 (48 62) 7 9 (48 62) 6 8 (41 55) 6 8 (41 55) 0 Interlaminar Shear Properties (76 83) 8 10 (55 69) 6 8 (41 55) 3 5 (21 34) 1 Wet = water immersion for 14 days at 160 F (71 C) 2 Property values listed are typical for laminates with 55 60% fiber volume. APPLICATION NOTES Preparation for Laminate Curing Treat surfaces that layup will touch with a release agent. As each ply of material is positioned, work out any wrinkles or entrapped air with a paddle or roller before removing the backing. Take care not to distort the material during layup. Insert a thermocouple into the layup near the center ply of the thickest edge section, outside the net trim line. To eliminate porosity, keep the resin under pressure during cure with the use of compressible dam. Use permeable fluorocarbon coated fabric to facilitate resin bleed. This material should be placed directly on the layup with sufficient layers of dry glass fabric (bleeder plies) to absorb the excess resin. Nonpermeable fluorocarbon coated fabric should be placed over the bleeder plies to protect the bag system in vacuum or autoclave cures. Install a vacuum bag by standard techniques. Insert at least two vacuum ports through the bag, connecting one to a vacuum source and the other, at a point furthest away from the source, to a calibrated vacuum gage. Position part in oven or autoclave and draw vacuum to check for bag or system leaks. Recommended layup procedures for CYCOM 7714A are shown in Figure 4 and Error! Reference source not found. 7 A E C M

8 Figure 4 Recommended Layup L3 for CYCOM 7714A Epoxy Prepreg: Bleed Layup Figure 5 Recommended Layup L6 for CYCOM 7714A Epoxy Prepreg: No Bleed Layup 8 A E C M

9 Recommended Cure Cycles Two cure cycles are recommended for CYCOM 7714A (Figure 6 and Figure 7). All cure cycles should be tailored based on application. Figure 6 Recommended Cure Profile #1 for CYCOM 7714A Epoxy Prepreg Figure 7 Recommended Cure Profile #2 for CYCOM 7714 Epoxy Prepreg 9 A E C M

10 PRODUCT HANDLING AND SAFETY Cytec Engineered Materials recommends wearing clean, impervious gloves when working with epoxy resin systems to reduce skin contact and to avoid contamination of the product. Materials Safety Data Sheets (MSDS) and product labels are available upon request and can be obtained from any Cytec Engineered Materials Office. DISPOSAL OF SCRAP MATERIAL Disposal of scrap material should be in accordance with local, state, and federal regulations. CONTACT INFORMATION GLOBAL HEADQUARTERS Tempe, Arizona tel fax NORTH AMERICA Olean, New York tel fax Winona, Minnesota tel fax Greenville, Texas tel fax EUROPE AND ASIA Wrexham, United Kingdom tel fax Springfield, Massachusetts tel fax Anaheim, California tel fax Cytec Carbon Fibers LLC Piedmont, South Carolina tel fax Östringen, Germany tel fax Havre de Grace, Maryland tel fax Orange, California tel fax D Aircraft Products, Inc. Anaheim, California tel fax Shanghai, China tel fax DISCLAIMER: The data and information provided in this document have been obtained from carefully controlled samples and are considered to be representative of the product described. Cytec Engineered Materials (CEM) does not express or imply any guarantee or warranty of any kind including, but not limited to, the accuracy, the completeness or the relevance of the data and information set out herein. Because the properties of this product can be significantly affected by the fabrication and testing techniques employed, and since CEM does not control the conditions under which its products are tested and used, CEM cannot guarantee that the properties provided will be obtained with other processes and equipment. No guarantee or warranty is provided that the product is adapted for a specific use or purpose and CEM declines any liability with respect to the use made by any third party of the data and information contained herein. CEM has the right to change any data or information when deemed appropriate. All trademarks are the property of their respective owners. 10 A E C M