Linear low density polyethylene (LINEAR LOW DENSITY POLYETHYLENE, LLDPE), with a small amount of ethylene is advanced - olefin copolymer polymerized in the presence of a catalyst. LLDPE and LDPE similar appearance Yangquan polyethylene plate, some poor transparency, but surface gloss, low temperature toughness, high modulus, bending and stress crack resistance, impact strength at low temperatures preferred advantages. [2] LLDPE applications have penetrated almost all the LDPE market. LLDPE and HDPE at this stage in the growth phase of the life cycle; LDPE at the end of the 1980s into the development of mature gradually Chifeng polymer polyethylene board, the world has rarely LDPE equipment production. Available polyethylene extrusion, injection molding, blow molding and melt spinning methods, widely used in industry, agriculture, packaging and daily industry, wide range of applications in China, the film is its biggest user, consumed about density 77% of polyethylene, high density polyethylene 18%, in addition, plastic products, wire and cable, and so hollow products account for a large proportion of their consumption structure, occupies a pivotal position in the plastics industry. Resin Series LDPE resin properties: tasteless, odorless, non-toxic, matte, white wax particle density of approximately 0.920g / cm3, a melting point of 130 ℃ ~ 145 ℃. Insoluble in water, slightly soluble in hydrocarbons, such as toluene. Resistance to most acid-base erosion, water absorption, at low temperature can maintain flexibility, high electrical insulation. Production process: There are two main high-pressure tubular process and kettle-type method. To reduce the reaction temperature and pressure tubular process technology commonly used in low temperature and high active primer used to initiate the polymerization system, high purity ethylene as the main raw material, propylene / propane as the density adjusting agent, highly active initiator at about 200 ℃ ~ Polymerization was carried out at 330 ℃, 150-300MPa condition. Reactor to initiate polymerization of the molten polymer polyethylene sheet, must go through the high pressure, intermediate pressure and low pressure cooling, separation, high pressure recycle gas cooled, separated into ultra high pressure (300MPa) compressor inlet, pressure cycles After the gas is cooled, separated into a high pressure (30MPa) compressor inlet, low pressure circulating gas cooled, separated into a low pressure (0.5MPa) recycling compressor, after the high-pressure polyethylene melted, made into the low pressure separation Golmud polyethylene plate granulator, carried water pelletizing, in granulation, companies can Depending on the application, adding a suitable additive particles were packaging factory. Uses: can be used injection molding, extrusion, blow molding and other processing methods. Mainly used as plastic sheeting, industrial packaging films, pharmaceutical and food packaging films, mechanical parts, daily necessities, building materials, wire and cable insulation, coatings and synthetic paper. Suihua polyethylene plate, Conte sheet, Baotou polyethylene plate provided by the Shandong Petroleum Equipment Co. Conte. Suihua polyethylene plate, Conte sheet, Baotou polyethylene plate Conte Shandong Petroleum Equipment Co. (www.njtlgcbc.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Mr. Wang.