polymers Flashcards
where does plastic come from?
most Plastics are man-made polymers that are synthesised from crude oil
name a difference between thermosetting and thermoplastics
thermosetting plastic to usually more brittle in rigid than thermoplastics
name some properties of thermosetting plastics
good electrical insulators and resistant to heat
what does fractional distillation do?
it involves separating the hydrocarbons in crude oil into fractions
name some properties of acrylic
hard shiny and resistant to weathering
name some uses for acrylic
baths
name some properties of PF
a good electrical insulator hard and highly resistant to heat
name some uses of PF
electrical fittings and saucepan handles
name some properties of PVC
you can be rigid or flexible cheap and durable
name some uses of PVC
guttering raincoats and window sills
name some properties of pp
it’s tough lightweight and flexible
name some uses of pp
stationery food packaging and rope
what are thermoforming polymers?
may contain few cross-linkage molecules
what are thermosetting polymers?
they undergo a chemical change when formed that makes them permanently rigid
what are some properties of PTE
strong, lightweight and durable
