Properties of thermosetting polymers (copy)

State 5 thermosetting polymers

• Epoxy

• Polyester resin

• Melamine resin

• Vulcanised rubber

• Polyurethane

State the properties and uses of epoxy

Properties

• High strength

• Stiff

• Brittle

• Excellent temperature, chemical and electrical resistance

Uses

• Printed circuit boards

• Cast electrical insulators

State the properties and uses of polyester resin

Properties

• Good strength

• Stiff

• Brittle

• Good temperature, chemical and electrical resistance

• Cheaper than other resins

Uses

• Bonding or encapsulation of other materials

• Suitcases/luggage

State the properties and uses of melamine resin

Properties

• Stiff

• Hard

• Strong

• Resistance to some chemicals and stains

Uses

• Laminate coverings for kitchen worktops

• Impact resistant plastic plates

State the properties and uses of polyurethane

Properties

• Hard

• High strength

• Flexible

• Tough

• Low thermal conductivity

Uses

• Hoses

• Foam insulation panels

• Surface coatings

• Sealants

State the properties and uses of vulcanised rubber

Properties

• Elastic

• Higher tensile strength

• Resistance to abrasion and swelling

Uses

• Bouncing balls

• Tyres

• Shoe laces