polytetrafluoroethylene
Học thuậtThân thiện
Definition
Noun: A synthetic polymer resin consisting of carbon and fluorine atoms, known for its extremely low coefficient of friction, high heat resistance, and chemical inertness. It is a fluorocarbon solid.
Usage
This is a technical, scientific term. It is used as a mass noun (uncountable) to refer to the material itself. It is most commonly used in industrial, engineering, and chemical contexts.
Examples
- Non-stick cookware is often coated with polytetrafluoroethylene.
- The chemical inertness of polytetrafluoroethylene makes it suitable for seals and gaskets in aggressive environments.
- A key property of polytetrafluoroethylene is its resistance to almost all chemicals.
Advanced Usage
- As a proprietary eponym: While "polytetrafluoroethylene" is the generic chemical name, it is famously known and marketed under the brand name Teflon®. In informal or commercial contexts, people often use the brand name instead of the full chemical term.
- Informal: "The pan has a Teflon coating."
- Formal/Technical: "The component is made from polytetrafluoroethylene."
Variants and Related Words
- PTFE: The standard initialism for polytetrafluoroethylene, widely used in technical writing and industry.
- Teflon®: A common brand name for PTFE. (Note: This is a trademark and should be capitalized).
- Fluoropolymer: The class of polymers to which PTFE belongs.
Synonyms
- PTFE (initialism)
- Fluorocarbon resin (broader category)
Notes on Different Meanings
This word has a single, specific technical meaning as defined above. It does not have idiomatic or figurative uses in standard language.
Noun
- a material used to coat cooking utensils and in industrial applications where sticking is to be avoided