Properties of Materials Flashcards
What do different solid materials have?
Different properties
What type of properties?
They have different melting points and densities
They can be strong or weak (in tension and compression)
Can be rigid or flexible, hard or soft
Will be better suited to some uses.
What do the properties of the materials used affect?
The durability and effectiveness of a product, so manufacturers test and assess the materials carefully beforehand.
What are the properties of unvulcanised rubbers?
Low tensile strength
Soft and flexible/elastic
What are the uses of unvulcanised rubbers?
Erasers
Rubber bands
What are the properties of vulcanised rubbers?
High tensile strength
Hard and flexible/elastic
What are the uses of vulcanised rubbers?
Car tyres
Conveyor belts
Shock abosorbers
What are the properties of plastic - polyethene?
Lightweight (low density)
Flexible and easily moulded
What are the uses of properties of plastic - polyethene?
Plastic bags
Moulded containers
What are the properties of plastic - polystyrene?
Lightweight (low density)
Stiff
Good thermal insulator as a foam
Water resistant
What are the uses of plastic - polystyrene?
Meat trays
Egg cartons
Coffee cup
Protecting appliances and electronics
What are the properties of Synthetic fibres - nylon?
Lightweight (low density)
Tough and waterproof
Blocks ultraviolet light
What are the uses of Synthetic fibres - nylon?
Clothing
Climbing ropes
What are the properties of Synthetic fibres - polyester?
Lightweight (low density)
Tough and waterproof
What are the uses of Synthetic fibres - polyester?
Clothing
Bottles
