MTC400 Epoxy Component Prepreg

Transcription

1 MTC400 Epoxy Component Prepreg Introduction MTC400 Prepreg is designed to cure between 80 and 135 C allowing flexibility in component manufacture. It is a toughened resin system and can be supplied on a variety of fabrics and in UD format. Key Features & Benefits Cure temperature from 80 C Service temperatures up to220 C after postcure Low CTE and shrinkage Work life at 20 C: 30 days Storage life at -18 C: 12 months Very low VOC content no added solvents during manufacture Storage & Out Life The material should be kept frozen at -18 C. It must be kept sealed in a polythene bag which must not be opened until fully thawed to room temperature. If the material is not fully used, then the material must be resealed in the polythene bag to prevent moisture absorption.

2 Mechanical Properties MTC400-42%-2X2T-3K-T Compression Test - BS EN ISO : 1999 Max Comp 001: 0 Direction x : 0 Direction x : 0 Direction x Mean Standard Deviation Item 01: Through ThickNess Shear Item 03: Through ThickNess Shear MTC400-42%-2X2T-3K-T Tension - ISO 527-4: 9 Max Tensile Tensile Modulus (GPa) Poissons ratio 004: Tension x : Tension x : Tension x Mean Standard Deviation % Coefficient of

3 MTC400-42%-2X2T-3K-T DMA - AITM Issue 3 Span Length Tg-Onset Tg ( C) Tg-Loss Tg ( C) Tg-Peak Tg ( C) 007: DMA x : DMA x : DMA x Mean Standard Deviation % Coefficient of MTC400-42%-2X2T-3K-T Flexure - ISO : 1998 Span Maximum Flexural Flexural Modulus (GPa) Strain to Failure (%) 010: Flexure x : Flexure x : Flexure x Mean Standard Deviation % Co-Efficient of : Tensile Fracture 011: Tensile Fracture 012: Tensile Fracture

4 MTC400-42%-2X2T-3K-T Inter Laminar SB - BS EN 2563 : 1997 Span Initial Failure Inter Shear Shear 013: Inter Laminar SB x : Inter Laminar SB x : Inter Laminar SB x Mean Standard Deviation Comments: Flexural MTC400-42%-2X2T-3K-T CAI - DIN EN 6038 pr 1996 Impact Energy (J) Dent Depth Max Comp 016: CAI x : CAI x : CAI x : CAI x Mean Standard Deviation

5 Impact Energy (J) Dent Depth Max Comp 020: CAI x : CAI x : CAI x Mean Standard Deviation Item 19: Through Thickness Shear (Top)- Item 20: Through Thickness Shear (Top) Item 21: Through Thickness Shear (Top) Mechanical testing carried out at 23+/- 2 C, 50+/- 5% RH. DMA Specimens were conditioned at 105 C for a week prior to testing. The test speed for compression = 1mm/min. The test speed for tension = 2mm/min. The test speed for flexure = 2mm/min. The test speed for ILSS = 1mm/min. 7 pieces tested for CAI / Items were used to determine BVID energy required to cause an impact of nominal 0.3mm Test speed for compression = 0.5mm/min. Items 018 to 021 did not fail at the site of impact damage. All mechanical tests were completed independently by Exova UK Ltd who is a UKAS and Nadcap approved organisation. All tests results reported above can be supplied independently upon request.

6 Cure Cycles & Performance Cure Initial Min Cure (hours) Tg 80 C C 90 C C 100 C C 110 C C Post Cured at 180 C C Fibre volume fraction 50 to 60% Fibre volume fraction Voidage <1% Voidage Curing Schedule is meant to be a guide only and is subject to local conditions. To avoid exotherm particular care must be taken with thick laminates. Ramp rates must not exceed 3 C per minute. Recommended Cure cycles Initial cure 135 C at a ramp rate of 3 C for 1.5 hours. Post cure (where required for high Tg) 1 hour dwell at 180 C maximum ramp rate of 3 C per minute. Health and Safety MTC400 contains epoxy resin which can cause allergic reactions with skin contact and must avoid repeated and prolonged skin contact. Please refer to the product Safety Data Sheet before using this material. The following precautions must be taken when using epoxy resin prepregs: Overalls must be worn at all times when using MTC400 Impervious gloves must be worn SHD Composite Materials Ltd cannot accept any liability for injury or damage where the above precautions have not been taken or where the material is used for any purpose other than its intended use.