Podcast
Questions and Answers
Which type of plastics can be melted down and recycled into new products?
Which type of plastics can be melted down and recycled into new products?
- Both thermoplastics and thermosetting plastics
- Thermoplastics (correct)
- Thermoplastic elastomers
- Thermosetting plastics
What is the main difference between thermoplastics and thermosetting plastics?
What is the main difference between thermoplastics and thermosetting plastics?
- Thermoplastics are more commonly used for road surfaces than thermosetting plastics
- Thermoplastics can be melted down and reformed, while thermosetting plastics cannot (correct)
- Thermoplastics are better insulators than thermosetting plastics
- Thermoplastics are more resistant to heat than thermosetting plastics
Which type of plastics are commonly used for handles on frying pans and saucepans?
Which type of plastics are commonly used for handles on frying pans and saucepans?
- Thermosetting plastics (correct)
- Both thermosetting plastics and thermoplastics
- Thermoplastic elastomers
- Thermoplastics
What is the proper term for fiberglass?
What is the proper term for fiberglass?
Which material is commonly used to make plastic window frames?
Which material is commonly used to make plastic window frames?
Which family of plastics can resist heat and fire, making them suitable for electrical fittings and panhandles?
Which family of plastics can resist heat and fire, making them suitable for electrical fittings and panhandles?
What happens to thermosetting plastics when they are heated?
What happens to thermosetting plastics when they are heated?
What is the importance of understanding the different types of plastics and polymers?
What is the importance of understanding the different types of plastics and polymers?
Flashcards
Thermoplastics
Thermoplastics
Plastics that can be melted down and reshaped multiple times.
Thermosetting Plastics
Thermosetting Plastics
Plastics that become permanently hard and rigid after heating. They cannot be melted and reshaped.
Glass Reinforced Plastic (GRP)
Glass Reinforced Plastic (GRP)
A material (usually a resin) that is combined with glass fibers to create a strong, lightweight composite.
Polyvinyl Chloride (PVC)
Polyvinyl Chloride (PVC)
Signup and view all the flashcards
Polyethylene (PE)
Polyethylene (PE)
Signup and view all the flashcards
Curing
Curing
Signup and view all the flashcards
Phenolic Resin
Phenolic Resin
Signup and view all the flashcards
Importance of Understanding Different Plastics
Importance of Understanding Different Plastics
Signup and view all the flashcards
Study Notes
Introduction to Polymers: Thermoplastics and Thermosetting Plastics
- Polymers are another term for plastics.
- Polymers can be classified into two families: thermoplastics and thermosetting plastics.
- Thermoplastics can be easily formed, recycled, and remolded, but they do not resist heat well.
- Thermosetting plastics can resist heat and fire, making them suitable for electrical fittings and panhandles.
- Thermoplastics are identified by different symbols and numbers for recycling purposes.
- Examples of thermoplastics include acetate, acrylic, LDPE, HDPE, and PET.
- Thermosetting plastics undergo a chemical change when heated and become hard and rigid.
- Examples of thermosetting plastics include epoxy resin, urea formaldehyde, melamine formaldehyde, and glass reinforced plastic (GRP).
- Visual imagery can be used to help remember the different types of plastics and polymers.
- Polypropylene is a tough and flexible thermoplastic that can be visualized with a picture of a school chair and a person doing flexible yoga or gymnastics.
- Understanding the different types of plastics and polymers is important for their appropriate use in various applications.
- A test can be used to assess the knowledge and understanding of the different types of plastics and polymers.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
