Polymer Matrix Composite

What is the basic unit of a polymer?

• • Monomer

• • Dimer

• • Trimer

• • Tetramer

Which of the following is a natural polymer?

• • Nylon

• • Polystyrene

• • Rubber

• Teflon

The process of joining monomers to form a polymer is called:

• • Polymerization

• • Depolymerization

• • Cross-linking

• • Vulcanization

Thermoplastic polymers can be:

• • Melted and reshaped

• • Hardened and inflexible

• • Highly crystalline

• • Only used once

Which polymer is used to make non-stick cookware?

• • Polyvinyl chloride (PVC)

• • Polytetrafluoroethylene (PTFE)

• • Polypropylene (PP)

• • Polyethylene (PE)

The process of adding sulfur to rubber to improve its properties is called:

• • Vulcanization

• Polymerization

• • Cross-linking

• Plasticization

Which of the following is a synthetic fiber?

• • Silk

• • Cotton

• • Nylon

• • Wool

What is the primary difference between thermoplastic and thermosetting polymers?

• • Molecular weight

• • Degree of polymerization

• • Cross-linking

• • Monomer type

Which polymer is commonly used in packaging materials?

• • Polystyrene

• • Polyvinyl chloride (PVC)

• • Polyethylene (PE)

• • Polytetrafluoroethylene (PTFE)

What is the repeating unit in a polymer chain called?

• • Monomer

• • Dimer

• • Polymer

• • Macromolecule