LDPE Bottles Dealers in Tilak Nagar, Kanpur

Low-density polyethylene (LDPE) is a thermoplastic made from petroleum. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. Its manufacture employs the same method today. LDPE is commonly recycled[citation needed] and has the number "4" as its recycling symbol. Despite competition from more modern polymers, LDPE continues to be an important plastic grade. In 2009 the worldwide LDPE market reached a volume of 22.2 billion US-Dollars (15.9 billion Euro).PropertiesLDPE is defined by a density range of 0.910–0.940 g/cm³. It is not reactive at room temperatures, except by strong oxidizing agents, and some solvents cause swelling. It can withstand temperatures of 80 °C continuously and 95 °C for a short time. Made in translucent or opaque variations, it is quite flexible, and tough but breakable.[citation needed]LDPE has more branching (on about 2% of the carbon atoms) than HDPE, so its intermolecular forces (instantaneous-dipole induced-dipole attraction) are weaker, its tensile strength is lower, and its resilience is higher. Also, since its molecules are less tightly packed and less crystalline because of the side branches, its density is lower. LDPE contains the chemical elements carbon and hydrogen.Chemical resistance Excellent resistance (no attack) to dilute and concentrated acids, alcohols, bases and estersGood resistance (minor attack) to aldehydes, ketones and vegetable oilsLimited resistance (moderate attack suitable for short-term use only) to aliphatic and aromatic hydrocarbons, mineral oils, and oxidizing agentsPoor resistance, and not recommended for use with Halogenated hydrocarbons.ApplicationsLDPE is widely used for manufacturing various containers, dispensing bottles, wash bottles, tubing, plastic bags for computer components, and various molded laboratory equipment. Its most common use is in plastic bags. Other products made from it include:Trays and general purpose containersFood storage and laboratory containersCorrosion-resistant work surfacesParts that need to be weldable and machinableParts that require flexibility, for which it serves very wellVery soft and pliable partsSix pack ringsJuice and milk cartons, whose "cardboard" is actually liquid packaging board, a laminate of paperboard and LDPE (as the water-proof inner and outer layer), and often with of a layer of aluminum foil (thus becoming aseptic packaging).Parts of computer hardware, such as hard disk drives, screen cards, and optical disc drivesPlayground slidesPlastic wraps