Technology

By juliarg14

  • Nitrocellulose

    It is a product obtained from the nitration of pure cellulose it is used, according to its characteristics, as a base for gunpowder, dynamite, explosive jellies or paints.
    It was discovered by Christian Schönbein

  • Celluloid

    The first synthetic plastic material was developed in the 1860s from a homogeneous colloidal dispersión of nitrocellulose and camphor.It’s flexible, and a moldable material that is resistant to water, oils and dilute acids and capable of low-cost production in a variety of colours.

  • Bakelite

    Then in 1909, a Belgian chemist named Leo Baekeland created the first entirely synthetic plastic, and it would revolutionize the way many consumer goods were manufactured. He called his plastic “Bakelite.” It was resistant to heat and would not conduct electricity, so it was a really good insulator

  • Rayon

    Rayon is a manufactured and regenerated cellulosic artificial fiber. In Europe it was called viscose, it is made from wood or cotton fibers, it is treated with sodium hydroxide, and then mixed with carbon disulfide to form cellulose xanthate, which is then dissolved in more sodium hydroxide.

  • Cellophane

    Cellophane was introduced in the 1920’s, and the clear, flexible food packaging became “all-important to stimulate unplanned, impulse buying,”
    The original was produced by DuPont was a cellulose-based material made from wood. Nowadays much of what we refer to as “cellophane” is actually plastic wrap made from petroleum derived PVC

  • PVC

    It is a chemical combination of carbon, hydrogen and chlorine. Its components come from crude oil and salt.It is the plastic with less dependence on oil.
    It is obtained by polymerization of vinyl chloride, whose manufacture is made from chlorine and ethylene. It is a thermoplastic material, that is, under the action of heat it softens and can easily be molded; when it cools it recovers the initial consistency while retaining the new form.

  • Neoprene

    Is a family of synthetic rubbers that are produced by polymerisation of cholrpprene.It maintains flexibility over a wide temperature range.
    The chips are then melted and then mixed with various foaming agents and carbon pigments.

  • Nylon and neoprene

    Carothers combined hexamethylene diamine, and adipic acid that created fibres, it had made the polymerizing process known as a condensation reaction, Wichita molecules join together with water as a product , the water produced by the reaction was dropping back into the mixture and getting in the way of more polymers forming. He adjusted his equipment so that the water was distilled and removed from the system.

  • Polyethylene

    Is a lightweight, durable thermoplastic with variable crystalline structure. It is one of the most widely produced plastics in the world. Polyethylene is used in applications ranging for films, tubes, plastic parts, laminates, etc. in several markets.
    Polyethylene is made from the polymerization of ethylene monomer. Polyethylene chemical formula is (C2H4)n.

  • Teflon

    Jack Rebok was the discover.
    It is a great electrical insulator and very flexible, it is not altered by the action of light and is capable of withstanding very extreme temperatures; its best known quality is nonstick

  • Tupperware

    Tupper did just that by forming a large undercut at the top of his bowls. Tupper allowed two pieces of plastic to flex and join, forming an airtight seal of great strength. The product was made possible by the confluence of two factors: the development of polyethylene and the design insight that the flexibility of the material could be taken advantage of to release it from a hard, unforgiving mold.

  • Kevlar

    Kevlar is a polyamide-type polymer that is used in the manufacture of threads with extraordinary strength and whose mechanization is very difficult.
    Its synthesis is carried out in a solution of N-methyl-pyrrolidone and calcium chloride, through step polymerization. This reaction is carried out at low temperatures.
    We owe his discovery to Polish-American chemistry Stephanie Kwolek

  • Polyester amides

    Polyester amides are very important synthetic polymers with applications in many fields. The combination of the thermal and mechanical properties of polyamides with the biocompatibility and biodegradability of polyesters affords biomaterials of great interest especially for tissue engineering and drug delivery.