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.Continue Reading
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
Examples of thermoset plastics include epoxy resins that are used for sealing and or adhering things together and urea formaldehyde, which is normally seen in pot handles or adhesives. Thermoset plastics are also found in polyester resin that is commonly used for mold castings or to bond materials. One of the most common thermoset plastics is the laminate counter tops that are commonly found in kitchens or work spaces.Full Answer >
According to the New York Times, natural plastics, or bioplastics, are environmentally safe alternatives to conventional plastic. They are made from plant materials, such as vegetable fats or starches. Because starch is composed of polymers like petroleum, the base of conventional plastic, it serves as a viable substitute.Full Answer >
Several commercial, residential and industrial products contain red phosphorous, including chemical mixtures, plastics, flame retardants, striker plates, incendiary shells, smoke bombs and tracer bullets. Red phosphorous is contained in fireworks and sparklers and sometimes in trace amounts in matches and candles. It is considered a volatile and reactive substance and is only added to products in controlled environments.Full Answer >
Acids are widely used in the manufacture of various substances such as solvents, chemicals, foods, fertilizers, medicines and plastics. The concentration of an acid usually determines where it can be used.Full Answer >