31-07-2012, 03:11 PM
Nanotechnology Applications in the Automotive Industry
Nanotechnology-WMIHS-PDC-DArcy_2.pdf (Size: 3.05 MB / Downloads: 105)
Engineered Nanoparticles
•Particle in which at least once dimension is intentionally less than 100 nm
•Unintentional particles less than 100nm referred to as ultrafine particles
•Automotive challenges
–Recognition of nanoparticle use
•CAS of no value for this
–Exposure control for assembly workers
–Automotive service technicians
–End of life vehicle
What are Nanocomposites?
•Plastics reinforced with nanoparticles
•Low loadings of nanoparticles do more than heavier loadings of other fillers.
Why Nanocomposites?
•Mass savings of 7 to 21%
•Improved appearance
•Improved gravel/mar performance
•Reduced paint delamination
•Retention of low temperature ductility
•Improved thermal stability
•Lower flammability
•Improved charge dissipation
•Improved surface quality
•Improved stiffness-toughness balance
Nanofluids
• Nanoparticles suspended
in a fluid
– High thermal conductivity
– Improved heat transfer
• Electronics heat
dissipation
• Fuel Cell
– As much heat as ICE
– Must protect membrane
Vehicle Manufacturing
•Nanotech parts used in cars
–GM purchases pre-made parts
–No nanoparticles brought into GM plants to date
•Nanoparticles could be released during processing or assembly
–Spraying paint or repair operations
–Machining
–Abrasion during assembly