C2 revision

C2 revision

1. Suitability

   • The properties of a Material make it either suitable or not for a specific purpose
     • Waterproof
       • durable (wont wear down after a few uses)
     • grips to the road
       • flexible (so you don't feel every bump in the road)

2. Natural vs. Synthetic

   • wool
     • cotton
       • Silk
         • rubberr
           • fur
             • paper
               • Leather
   • polthene
     • Goretex
       • polyvinylchloride PVC
         • Polyester
           • PET
             • Acylic
               • velcro
                 • kevlar
                   • Neoprene

3. changing polymers

   • Cross linking
     • Molecules are locked into a regular arrangement
   • Branching
     • Polythene are made under high pressure has branches