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작성자 atc001
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INTRODUCTION
A - Main technologies for high performance composites ............................................................................................... 3
B - Why use composites ? ............................................................................................................................................ 4
C - What is a prepreg ? ................................................................................................................................................. 4
FIBRE AND FABRIC PROPERTIES
A - What are the fibre properties ? ................................................................................................................................ 5
B - What are the different styles of fabrics ? .................................................................................................................. 6
C - What are the main factors affecting the choice of reinforcement ?........................................................................... 7
MATRIX PROPERTIES
A - What is the role of the matrix ? ................................................................................................................................ 8
B - What are the properties of different thermoset matrices ? ...................................................................................... 9
C - How do different matrices compare in terms of temperature/mechanical performance? ........................................ 10
PREPREG PROPERTIES
A - Why use prepregs ? ............................................................................................................................................... 11
B - Where are prepregs used ? .................................................................................................................................... 11
C - How are prepregs made ? ...................................................................................................................................... 12
PREPREG PROCESSING
A - What are the different prepreg processing techniques ? ......................................................................................... 13
B - Vacuum bag or autoclave - which process ? ........................................................................................................... 14
C - What is the role of each layer in vacuum bag assembly ? ....................................................................................... 15
D - How is vacuum bag and autoclave processing carried out ? .................................................................................. 16
E - What are the main autoclave and vacuum bag processing parameters ? ............................................................... 18
F - What are the best processing methods for thicker industrial components ? ............................................................19
G - What is the best cure cycle for thicker components ? ............................................................................................. 19
H - What is a prepreg sandwich construction ? ............................................................................................................. 20
I - What are the properties of a sandwich construction ? .............................................................................................. 20
J - How is a sandwich construction produced ? ............................................................................................................ 21
PROPERTIES OF FIBRE-REINFORCED COMPOSITES
A - What are the characteristics of a composite material ? ...........................................................................................22
B - What physio/chemical tests are made on prepregs before and after cure ? ............................................................ 23
C - How are composites tested ? ................................................................................................................................. 24
PREPREG STORAGE AND SAFETY PRECAUTIONS
A - How should prepregs be stored ? ........................................................................................................................... 27
B - What health and safety precautions should be taken when handling prepregs ? .................................................... 27
APPENDIX I - CALCULATIONS
A - Theoretical calculations of bleeder plies to make a composite laminate of selected fibre volume .......................... 28
B - Calculation of cured ply thickness, fibre volume and composite density ................................................................. 29
C - Choice of prepreg resin content to achieve required fibre volume/cured ply thickness ...........................................30
첨부파일
Prepreg_Technology.pdf
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