18 Questions
Which thermoplastic material is known for being resistant to chemicals, ultraviolet light, impact, and abrasion?
Nylon
What type of polymer is polyethylene terephthalate (PET or PETE)?
Thermoplastic
Which of the following synthetic materials tends to shrink away from flames and self-extinguish?
Polyester
What is the main characteristic of elastomers that allows them to recover when the load is removed?
Molecular chains free to straighten
Which thermoset plastic is commonly used as an adhesive or in composite materials?
Epoxy resin
What characteristic makes polypropylene useful for small components like chair casters and rollers?
Low coefficient of friction
What effect does lowering the melting temperature of a plastic have on the molecular chain?
Reduces the freedom of movement
At what temperature does a plastic solidify at its melting-point temperature?
Exactly at its melting-point temperature
What effect do plasticizers have when added to plastics that have been lowered to a brittle state?
Reduce brittleness
In which environment are plastic wastes commonly found?
Ocean surfaces
What is a characteristic of bioplastics in terms of breakdown?
Break down in industrial composting facilities
What is one advantage of recycling plastics into products like outdoor furniture and floor tiles?
Uses less energy than manufacturing new plastic
What is a major VOC irritant often found in synthetic materials?
Formaldehyde
Which type of plastic becomes soft when heated and can be remolded?
Thermoplastics
What type of plastic has cross-linked molecular chains that reduce its flexibility?
Thermoset plastics
Which synthetic material is very clear, hard, lightweight, and chemical- and weather-resistant?
Acrylics
What gives thermoplastics their flexibility?
Long, tangled chains of molecules
Which type of material is becoming more readily available as an alternative to formaldehyde-containing materials?
Low VOCs
Explore the characteristics of nylon and polyesters, two important thermoplastic polymers. Learn about their properties, applications, and how they are classified based on their chemical structure.
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