Polymers Lotrčne(LDPE,LLDPE,HDPE)
Low Density Polyethylene (LDPE) With a worldwide consumption of around 20 million metric tonnes per year, LDPE is one of today's major thermoplastics.?LDPE is a polymer made from the monomer ethylene. It is transparent, robust and at the same time relatively ?exible. LDPE has excellent resistance to water, moisture and various organic solvents and chemicals.?LDPE is mainly used for the manufacture of ?lms and sheets, but is also used for extrusion-coating, injection-moulding, injection-moulding and wire and cables.
Linear Low Density Polyethylene (LLDPE) LLDPE is one of the major thermoplastic, with a total worldwide production of around 25 million metric tonnes per year.?LDPE is a copolymer made from Ethylene and from an Alpha-Ole?n. LLDPE is a polyethylene with good impact and puncture resistance, good ?exibility and high elongation under stress.?Like LDPE, the main application for LLDPE is ?lms and sheets. LLDPE is also used in injection-moulding, rotomoulding, wire and cables.
High Density Polyethylene (HDPE) / Medium Density Polyethylene (MDPE)??With a worldwide consumption of around 40 million metric tonnes per year, HDPE is one of today's major thermoplastics and the most widely used type of polyethylene (PE). HDPE has higher crystallinity (density) compared to low density polyethylene (LDPE) and linear low density polyethylene (LLDPE), which results in higher mechanical properties such as stiffness, modulus and tensile strength, higher temperature resistance, improved barrier properties as well as improved chemical resistance to a variety of solvents and chemicals. HDPE properties can be adjusted by controlling the molecular weight, molecular weight distribution, degree and type of short chain branching and amount of long chain branching to design resins with optimum performance for different end-use applications.?HDPE is used worldwide in a very large variety of applications such as rigid containers, toys, film products, sheet products, injection-molded articles, pressure and non-pressure pipes, geomembranes, automotive parts and fuel tanks, to name just a few.