What is an example of polystyrene?

What is an example of polystyrene?

Polystyrene is a synthetic aromic polymer that is made from the monomer styrene, which is a liquid petrochemical. Some examples that polystyrene is used for are: disposable cutlery, plastic models, CD’s & DVD cases, and smoke detector housings.

What are the properties of polystyrene?

Polystyrene Characteristics Unmodified polystyrene is clear, rigid, brittle and moderately strong. Its electrical properties as a dielectric material are good, though it has relatively low heat resistance. Polystyrene is soluble in most chlorinated and aromatic solvents, though not in alcohols.

What are the uses of polystyrene?

It is widely employed in the food-service industry as rigid trays and containers, disposable eating utensils, and foamed cups, plates, and bowls. Polystyrene is also copolymerized, or blended with other polymers, lending hardness and rigidity to a number of important plastic and rubber products.

What is polystyrene made up of?

Polystyrene (PS) is a polymer made from the monomer styrene, a liquid hydrocarbon that is commercially manufactured from petroleum. At room temperature, PS is normally a solid thermoplastic but can be melted at higher temperature for moulding or extrusion, then resolidified.

What is an example of a polythene?

Bubble wrap used for packing fragile dishes is an example of polythene. Polythene is a light type of plastic used for insulating and packaging. An example of polythene is what something would be wrapped in for safety during shipping.

What is polyethylene used for?

Principal uses are in packaging film, trash and grocery bags, agricultural mulch, wire and cable insulation, squeeze bottles, toys, and housewares. The plastic recycling code of LDPE is #4.

Is polystyrene linear or branched?

Polymers. Addition polymers such as polyethylene, polypropylene, poly(vinyl chloride), and polystyrene are linear or branched polymers with little or no cross-linking. As a result, they are thermoplastic materials, which flow easily when heated and can be molded into a variety of shapes.

How is polystyrene used in construction?

EPS begins as a polystyrene bead or pellet. EPS is used as insulation in walls, roofs, and foundations, and serves as an integral component of structural insulated panels (SIPs), insulated concrete forms (ICFs), and exterior insulation and finish systems (EIFS).

What are the common materials used in packaging?

What Are the Most Common Types of Packaging Materials?

  • Plastic.
  • Glass.
  • Steel.
  • Aluminum.
  • Paper and Paperboard.
  • Wood.

How is polystyrene created?

Polystyrene is made in a process known as suspension polymerization. After styrene is produced by combining ethylene and benzene, it is merged with water and a mucilaginous substance to form droplets of polystyrene.

What is polyamide used for?

Polyamide is common in textiles like clothing and carpets. It also often features in the production of items that require both strength and flexibility, including fishing line, electrical connectors, gears, guitar picks and strings and medical implants.

What are examples of addition polymer?

Addition polymers include polystyrene, polyethylene, polyacrylates, and methacrylates. Condensation polymers are formed by the reaction of bi- or polyfunctional molecules, with the elimination of some small molecule (such as water) as a by-product. Examples include polyester, polyamide, polyurethane, and polysiloxane.