Polymers

Imagine you are working in a lab and you need to create a new type of plastic. You start with the basic building blocks. What are these building blocks called?

• A manufacturing process for plastics

• A large molecule that cannot combine with others

• A small molecule that can chemically bond to other monomers to form a polymer

• A type of plastic

What is polyethylene used for?

• Making electronic circuits

• Manufacture of 'plastic' bottles

• Producing adhesives like Araldite

• Insulating electrical wires

Imagine you're working on a project that involves creating custom kitchenware. Which of the following characteristics would NOT apply to the thermosetting plastics you're considering for the handles?

• They have a strong bond between molecules

• They are used in adhesives and varnishes

• They can be reheated and reshaped multiple times

• They cannot be reshaped once set

Imagine you're working with a variety of materials in a product design workshop. What property would you find common in materials classified as thermoplastics?

• They cannot be recycled

• They soften when heated

• They are used mainly for insulation

• They are all derived from natural materials

What is Acrylic commonly used for in schools?

• Insulating electrical circuits

• Vacuum forming shapes

• Making gears and bearings

• Producing adhesives

Which feature of Polyvinyl Chloride (PVC) makes it suitable for manufacturing medical tubing and blood bags?

• It is the most common plastic in everyday life

• It is mainly used for making toys

• It cannot be welded or bonded with an adhesive

• It can be either hard or flexible

Why is Nylon a preferred material for manufacturing gears in machinery?

• Its ability to change colors

• Its resistance to water

• Its reduced friction between moving parts

• Its transparency

A hobbyist is looking to build a lightweight model airplane. Which of the following plastics would be the ideal choice for this project?

• Polyethylene

• Styrofoam

• Polyester resins

• Melamine Formaldehyde

What is the main use of Polyurethane?

• Model making

• Insulating electrical circuits

• Forming the basis of many paints and varnishes

• Making plastic bottles

During the manufacturing of children's toys, which process is NOT typically used?

• Injection Moulding

• Blow Moulding

• Vacuum Forming

• Solvent Bonding