Pvc is used to make dissposable glasses
A polythene rod is a rod made from polyethylene, a type of plastic known for its flexibility, high chemical resistance, and low electrical conductivity. It is commonly used in various applications such as insulation, packaging, and manufacturing of plastic products.
The word glass in this case isn't necessarily referring to the material glass, but instead referring to a small, handheld vessel for drinks, or a cup. Things that are usually, if not always made of glass have often been referred to as a "glass". For instance, a mirror may sometimes, but not very often, be referred to as a glass. With glass cups, and goblets the name "glass" stuck and became the definitive name for anything with that shape for the purpose of holding drinks. When one of these is made of plastic, it can be referred to as a "plastic glass", especially if the plastic is designed to visually replicate glass.
The plastic wire in a slinky is typically made from polypropylene or PVC, which are both types of thermoplastics known for their flexibility and durability.
Eyeglass lenses could be made of nearly any plastic or glass. For example, some glasses lens, such as my own, are made of a plastic called polycarbonate which is the material used to make bulletproof glass so my glasses are impact resistant. Other eyeglass lenses can be made from other plastics and glasses such as CR-39, Homopolyer and crown glass.
An empty 8 oz plastic jar typically weighs around 10-15 grams, depending on the specific type of plastic used in its construction.
Oil is used to produce plastic.
thermosetting plastics
Mostly , but transparent plastic is also used.
could be:polyethylenepolystyrenepolycarbonateetc.
= plastic spectacle Glasses lenses invented 1934 =
Technically, if they are made of plastic, then they aren't glasses. They might be fake glasses, for diguises etc... Often, real glasses do have a thin layer of plastic over the glass so that they don't crack, but plastic doesn't do anything as far as focusing a person's eyesight.
The type of plastic that would be used in a plastic fitting is a type of thermoplastic called PVC, or polyvinyl chloride. PVC is commonly used in plastic fittings because it's durable, and can't be corroded.
Polycarbonate is the type of plastic typically used for CD cases.
polysecrene
It depends on what type of plastic it is.
"Plastic is used to make these tools." Yes, the sentence is correct. It has a subject (plastic) and a verb (is used).
The most common type of plastic used in everyday products is polyethylene.