Road tar is made from a mixture of hydrocarbons produced by processing crude oil or natural gas. Bitumen is the remnant of crude oil after the gasoline, kerosene, diesel oil and other fuels have been removed.
Bitumen is solid at low temperatures, but turns into a liquid at high temperatures. Tar is usually applied while hot so that it flows down into road cracks easily. Once cooled it turns into a semisolid substance. On days with a high ambient temperature tar becomes soft, and can become loose and pull away from the roads. This leads to the oil contained inside the tar being sprayed onto the lower panels of vehicles passing over them.Learn More
Kerosene and diesel are made up of long, flammable hydrocarbon molecules derived from crude oil, which is also known as petroleum. Kerosene is made up of a mixture of carbon chains with between six and 16 carbon atoms per chain. Diesel fuels are heavier, with anywhere from eight to 21 carbon atoms per chain. Both are liquid at room temperature, but diesel fuel has a higher boiling point.Full Answer >
Kevlar is made of paraphenylenediamine and terephthaloyl chloride. This combination creates aramaid threads that are dissolved and then spun into regular fibers, which are woven into fabrics.Full Answer >
According to About.com, cellophane is made from cellulose fibers, which usually come from wood or cotton. The cellulose fibers are sent through a narrow slit into an acid bath. As the acid regenerates the cellulose fibers, a thin film forms. The film is then washed, bleached and processed to yield cellophane.Full Answer >
Most plastics are made from oil. Oil is a long-chain hydrocarbon, meaning that it is composed of long chains of carbon molecules. These long chains of carbon molecules give plastic its characteristic strength and flexibility.Full Answer >