technological materials and their environmental impact

technological materials and their environmental impact

1. Technical materials

   • raw material
   • processed material
   • natural material
   • materials
     • metals
     • woods
     • plastics
     • textiles
     • construction materials

2. choosing materials

   • sensory properties
     • feel
     • colour
     • transparency
     • texture
     • brightness
   • mechanical materials
     • hard
     • elastic
     • tough
     • malleable
     • soft
     • ductile
     • plastic
     • brittle
   • physical properties
     • conductors
     • insulators
   • other properties

3. wood

   • types of wood
     • softwoods
     • woods
   • 1. felling
   • 2.debarking
   • 3. transport to the sawmill
   • 4. sawing for end use
   • 5. drying
   • 6. cleaning, planing and sanding
   • 7. treatments and finishes
   • wood products
     • cork
     • plywood
     • chipboard
     • paper
     • cardboard

4. metals

   • classifying metals (non-ferrous metals)
     • aluminium
     • copper
     • other non-ferrous metals
     • tin
     • zinc
   • ferrous metals
     • cast iron
     • steel
     • iron

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