Flat Tow Hot Melt Towpreg HMT 502

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1 Page 1 of 5 Flat Tow Hot Melt Towpreg HMT 502 Description: Newport-FTP TM HMT502 is a F ( C) cure, hot melt towpreg, utilizing a toughened, controlled flow epoxy resin matrix. The flat tow structure, which is produced by Newport special coating process has more even fiber impregnation compare to the round tow structure, enables more precise winding pattern (band width) control with reduced gap formation and increased adhesion. The unique resin formulation allows the high performance fiber of FTP TM HMT502 to perform to its maximum strength potential, which has led to superior burst pressure and cycle life in the composite overwrapped pressure vessel (COPV) burst test. Application: Newport-FTP TM HMT502 is specifically designed for pressure vessel application. The product is well suited for filament winding process and or fiber placement process. Easy handling, versatile processing and excellent mechanical properties make Newport-FTP HMT502 suitable for a variety of applications in sporting goods, marine, medical, industrial manufacturing, especially for pressure vessel application which requires high tank burst pressure and long cycle life. Long out time also makes Newport-FTP TM HMT502 ideal for large scale parts where layup process can take days or weeks. Newport-FTP TM HMT502 can be supplied with most commercially available fibers, including Carbon, Quartz, Aramid, S-glass, E-glass and Other specialty fibers Benefits/Features: Environmentally friendly (Solvent free, reduced the waste by eliminating release paper and cover film) Consistent Resin Content Stable band width Flat tow structure allows better impregnation and precise winding pattern control Easy de-spooling Long out time, 3 months at 70 F (21 C) Moderate tack (adjustable) Excellent mechanical properties High ultimate burst strength and long cycle life in COPV test Available on a wide range of standard, intermediate, and high modulus carbon fibers. Compatible with any of Newport s 250 F (121 C) to 300 F (149 C) cure epoxy systems. Newport-FTP TM HMT502 Product Data Sheet 2013 Mitsubishi Rayon Carbon Fiber and Composites, Inc. PL-HMT rev1.docm All rights reserved Reynolds Avenue Irvine, CA (949) FAX (949)

2 Recommended Processing Conditions: Newport-FTP TM HMT502 can be cured at temperatures from F ( C) depending on part size and complexity. Low, medium, and high pressure molding techniques may be used to cure Newport-FTP TM HMT502 product. Recommended cure cycle is psi ( kpa), 3 F/min (1.7 C/min) ramp to 275 F (135 C), hold for minutes, cool to <140 F (60 C). Physical Properties: Gel Time 5-9 minutes at 275 F Cured Resin Density 1.20 g/cc Tg (DMA, E ) 114 C (237 F) Gel Curve of Newport-FTP TM HMT502 Gel Time vs Temperature Time (min) Temperature (F ) Mechanical Properties: The mechanical properties listed in the following tables are average values obtained from Newport-FTP HMT502 neat resin, HMT502 with K and TRH50 18K carbon fiber. Composite laminates are based on using an autoclave cure at 275 F (135 C) for 90 minutes under 80 psi (552 kpa) pressure. Results are normalized to 60% fiber volume, except In Plane Shear and Short Beam Shear properties. * Values are average and do not constitute a specification

3 HMT502 neat resin Test Method RT Tensile strength, ksi 13.6 Tensile modulus, Msi ASTM D-638 TypeI 0.42 Strain at break, % 5.5 HMT K Test Method RT 0 Tensile strength, ksi Tensile modulus, Msi 22.0 Poison s ratio ASTM D Tensile strength, ksi Tensile modulus, Msi Compression strength, ksi Compression modulus, Msi ASTM D-695 mod Compression strength, ksi Compression modulus, Msi Flexural strength, ksi ASTM D Flexural modulus, Msi /-45 In Plane Shear strength, ksi ASTM D *1 +/-45 In Plane Shear modulus, Msi Short Beam Shear str., ksi ASTM D Shear strain HMT502 TRH50 18K Test Method RT 0 Tensile strength, ksi Tensile modulus, Msi ASTM D Poison s ratio Compression strength, ksi ASTM D-695 mod Compression modulus, Msi Flexural strength, ksi 243 ASTM D Flexural modulus, Msi Short Beam Shear str., ksi ASTM D

4 Composite Overwrapped Pressure Vessel Test In a Type 3 Composite Overwrapped Pressure Vessel (COPV) test, aluminum 7.5 liter liners were overwrapped by Newport-FTP TM HMT502 with K carbon fiber with 28% RC. The cured vessels were burst tested with water to establish the burst pressure. The cycle life of the pressure vessel was measured at a cycle pressure of 50% that of the ultimate burst pressure, the data are averaged from multiple tests and reported in the table below. Ultimate burst pressure Cycle life psi 6777 cycles Towpreg Storage: Out time is 3 months at room temperature 70 F (21 C). Material can be stored at 40 F (4 C) for 8 months. Material can be stored at 0 F (-18 C) for 24 months.

5 Availability: Newport-FTP TM HMT502 is available on a wide variety of carbon, aramid and glass fibers. Some product characteristics such as resin content, gel time can be tailored within reason to meet specific requirements. Contact us about any specialty fibers or requirements. For orders, pricing, availability, technical assistance or other inquiries please contact: CORPORATE OFFICES Mitsubishi Rayon Carbon Fiber and Composites, Inc. Composite Materials Division 1822 Reynolds Ave. Irvine CA Tel: (949) Fax: (949) compositesales@mrcfac.com Suzanne Potter, Sales Administrator, suzanne.potter@mrcfac.com Mike Pierce, Senior Sales Manager, mike.pierce@mrcfac.com Max Thouin, Technical Sales Manager max.thouin@mrcfac.com Nick Nohara R&D Manager nick.nohara@mrcfac.com Disclaimer: The information contained herein has been obtained under controlled laboratory conditions and are typical or average values and do not constitute a specification, guarantee, or warrantee. Results may vary under different processing conditions or in combination with other materials. The data is believed to be reliable but all suggestions or recommendations for use are made without guarantee. You should thoroughly and independently evaluate materials for your planned application and determine suitability under your own processing conditions before commercialization. Furthermore, no suggestion for use or material supplied shall be considered a recommendation or inducement to violate any law or infringe any patent.