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FAA Materials Meeting (Zürich) 12-13 July 2004 Plasma Technology: An Environmentally Friendly Innovation for Aircraft

FAA Materials Meeting (Zürich) 12-13 July 2004 Plasma Technology: An Environmentally Friendly Innovation for Aircraft Industry. PLASMA PARAMETERS: Primary parameters: Gas type Residence time Secondary parameters: Gas flow Frequency Power Pressure. PLASMA SYSTEM: Vacuum chamber

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FAA Materials Meeting (Zürich) 12-13 July 2004 Plasma Technology: An Environmentally Friendly Innovation for Aircraft

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  1. FAA Materials Meeting (Zürich) 12-13 July 2004 Plasma Technology: An Environmentally Friendly Innovation for Aircraft Industry FAA Materials Meeting (Zürich)

  2. PLASMA PARAMETERS: • Primary parameters: • Gas type • Residence time • Secondary parameters: • Gas flow • Frequency • Power • Pressure • PLASMA SYSTEM: • Vacuum chamber • Vacuum pumps • Gas distribution • RF-generator • Process controller • Loading principle • TREATMENTS: • Cleaning • Activation • Etching • Polymerization Low pressure: 5.10-2 - 1mbar Ambient temperature: 30 - 40 °C Gasses: O2,N2,Ar,He,CxFy,H2,CH4,… Liquid monomers: HMDSO,… Frequency’s: KHz, MHz, GHz • WHAT IS PLASMA? • 4the state • Ionized gas, highly reactive • Visible glow discharge FAA Materials Meeting (Zürich)

  3. Plasma for activation of: • Polymers (thermoplasts, duroplasts and elastomers) • Textiles (synthetic and natural fibers) • Foils • To create: • Polar groups on the surfaces To obtain: • Better Adhesion OH O COOH c c c c c c c c PLASMA O2 c c c c c c c c NH NH2 NO2 c c c c c c c c PLASMA N2 c c c c c c c c • Applications: • Printing and painting • Gluing and flocking • Biomedical cell growth • Biocompatible coatings • Soldering and bonding • Laminate and Composite production FAA Materials Meeting (Zürich)

  4. To remove: • Parts of the material • Whole layers To obtain: • Better Adhesion • Roughening of the surface Plasma for etching of: • Polymers (thermoplasts, duroplasts and elastomers) • Textiles (synthetic and natural fibres) • Foils c c c c c c c c c c c c c c c c c c c c c c PLASMA c c c c c c c c c c c c c c c c c c c c c c c c PLASMA c c c c c c c c • Applications: • Back etch of PCB • Desmear of PCB, including PTFE • Cleaning of laser vias (blind holes) • Photo resist stripping • Suitable for hybrid materials FAA Materials Meeting (Zürich)

  5. To produce layers with: • Polymer like properties • Pin-hole free dense properties • Thickness in nm range • Highly cross linked properties • Custom designed surface properties Plasma for polymerisation of: • Polymers (thermoplasts, duroplasts and elastomers) • Textiles (synthetic and natural fibres) • Foils c c c c c c c c c c c c c c c c PLASMA CH4/Ar c c c c c c c c • Applications: • Hydrophobic coatings • Hydrophilic coatings • Oleo phobic coatings • Barrier coatings • Biocompatible coatings • Inert behaving coatings FAA Materials Meeting (Zürich)

  6. NEW DEVELOPMENTS FOR AIRCRAFT INDUSTRY: TEXTILES • Activation of the textile with plasma technology, for a better uptake of FR-product and for a better adhesion of the FR-product onto the textile using impregnation technology • Already proven on PA-textiles (FAR 25.853 appendix f part 1) • Why it can be used: • For better adhesion of the flame retardant product onto the textiles: better wash ability • To reduce the chemical concentration in a impregnation bath (more environmental friendly) • To obtain extending flame retardant properties according the FAA-regulations for interiors. Plasma pre-treatment FAA Materials Meeting (Zürich)

  7. NEW DEVELOPMENTS FOR AIRCRAFT INDUSTRY: AIRCRAFT WINDOWS • Polymerization of multifunctional barrier coating with plasma technology • Fire retardant properties and anti-crazing properties • Development of scratch resistant multifunctional barrier • Why it can be used: • The multifunctional barrier should increase the burn-through time (longer time for evacuation) • The multifunctional barrier should also increase the crazing resistance due to some influences as temperature, UV-radiation, humidity, … • The coating will also increase the hours of flying: less maintenance is needed Plasma treatment FAA Materials Meeting (Zürich)

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