2. Properties of Plastics

Try these first

1. 1.

   What is tensile strength in plastics?

   Hint

   Think about how much load a rope can take before it snaps.

2. 2.

   Define impact resistance.

   Hint

   Consider materials used for safety helmets.

3. 3.

   What is the main advantage of low thermal conductivity in plastics?

   • Increased weight
   • Improved insulation
   • Higher melting point

   Hint

   Think about how thermal insulation materials work in buildings.

4. 4.

   True or False: Thermoplastics can be remolded after being set.

   • True
   • False

   Hint

   Remember the difference between thermoplastics and thermosetting plastics.

5. 5.

   Design a scenario in which you choose a plastic material for a construction project, considering tensile strength, impact resistance, and environmental factors. Explain your decision.

   Hint

   Think about the location and conditions of your project.

6. 6.

   Evaluate how the creep property of thermoplastics can affect structural integrity in long-term applications. Provide a case example.

   Hint

   Think about the roles that continuous pressure can play in application scenarios.