Understanding Plastics: Types, Properties, and Applications
A monomer is… A molecule with low molecular weight
All these containers are made with: thermoplastics
All these objects are made with: Thermosets (rigid)
All these objects are made with: elastomers (goma)
Impermeability is a property of plastics … True
Molecular bonds in thermosets plastics are much stronger than in thermoplastics:… True
Polymers in plastics are made of long chains of carbon atoms… True
Plastics can be natural or synthetic … Yes, there are two types.
Plastics have high malleability (ability to deform under pressure and flatten into thin sheets) … True
Plastics have low ductility (ability to deform under pressure to obtain threads) … False
Plastics generally have low mechanical strength (ability to resist forces without breaking) … False
Plastics are good electrical insulators … True
Plastics are good insulators acoustic … True
Plastics that have the ability to adopt a new shape when heated and then return to its original shape are … Thermoplastics
Plastics that after adopting a new shape when heated then cannot return to their original shape are: … Thermostable
Plastics present no environmental risk today… false
Select a suitable plastic for a water bottle… PET
Select a suitable plastic for a young child’s plate… melamine
Select a suitable plastic for a window frame… PVC
Select a suitable plastic for motorcycle helmets… Acrylic
The chemical reaction that creates a polymer from the bond of monomers is called… Polymerization
The main raw material in the production of plastics is petroleum… Yes, most are made from petroleum
The plastics manufactured after a process called vulcanization are:… elastomers
This image represents… Injection molding
This image represents… extrusion
This image represents… blow molding
This image represents… Lamination process forming
These objects are manufactured after a process of… Vacuum
This bottle is manufactured by… blowing
These profiles are manufactured by… extrusion
The cover of this mobile is made by… buy ion
This image refers to… thermoplastics
The numbers represent… The type of plastic an object is made of
True or false: Plastics are formed by macromolecules produced from petroleum, coal, and gas. True
They can be heated and shaped as many times as needed… Thermoplastics
They are very elastic… elastomers
Thermoplastics don’t resist heat well… True
Thermosets are recyclable… false
Which kind of plastic is the Melamine? Thermosetting
Which property is defined as ‘the temperature at which a plastic changes into a liquid’… Melting point
Which kind of plastic is this object made of? Thermoset
Which property is: ‘the ability of a material to produce negative effects on living organisms.’… Toxicity
Which property is defined as ‘the ability to let water pass through a material’? … permeability
Which kind of plastic is this object made of? … Elastomers
Which kind of plastic is the Polyvinyl chloride (PVC)? Thermoplastic
Which kind of plastic is this object made of? Thermoplastics
Which kind of plastic is this object made of? Thermosetting
Which kind of plastic is this object made of? Elastomer
Where do natural plastics come from? Animals and plants