Thermoplastics are a subset of plastics that can be re-shaped with the application of pressure and heat multiple times. Different types of thermoplastics have additional properties that make them especially well-suited to different jobs, but all thermoplastics share the same characteristic of flexibility when exposed to heat and force.Know More
Thermoplastics are also known as thermosoftening plastics because they become malleable when heated. Although they are pliable above a certain heat threshold, they return to a solid once they have been sufficiently cooled. This is a contrast to most other types of plastic, which are unable to return to a solid state after they have been heated beyond a certain point. For this reason, thermoplastics are put to unique uses in a number of manufacturing and engineering industries.
Apart from their primary characteristics, thermoplastics vary slightly in usage and properties. For example, polystyrene is a hard, water-resistant thermoplastic, according to BBC. This makes it an excellent choice for creating toy models and for packaging that will not be exposed to extreme heat sources in transit. Polymethyl methacrylate is also a stiff thermoplastic, but it is also an electrical insulator and can be polished well, so it is often used in vehicle windows and light covers.Learn more about Chemistry
Physical properties are characteristics of matter that can be observed without making any changes to the chemical composition of that given matter. In academic contexts, physical properties are often contrasted with chemical properties.Full Answer >
Cast iron is brittle, hard and more fusible than steel. It is also nonmalleable, which means that it cannot be stretched, hammered or bent into shape. Its has a crystalline structure, and it is weak in tension.Full Answer >
In chemistry, the term "property" is frequently used to describe the attributes of a substance, such as density, oxidation, state of matter, mass, conductivity, color, bonding and many other traits. These properties are used to understand how a substance behaves in different situations.Full Answer >
Oxygen is a non-flammable gas that is colorless and odorless. It has a melting point of 54.36 Kelvin and a boiling point of 90.19 Kelvin. Oxygen speeds the rate of combustion by acting as an oxidizing agent.Full Answer >