Low-density polyethylene is a plastic material, he is suitable for thermoplastic molding processing of a variety of molding processes. Good molding process, such as injection molding, extrusion, blow molding, rotational molding, coating, foaming process, thermoforming, hot air welding, heat welding and so on. The main use of LDPE is for film products, such as agricultural film, ground cover film, agricultural film, vegetable greenhouse film, etc.; packaging film such as candy, vegetables, frozen food packaging; liquid packaging blow molded film (milk, soy sauce, juice.); heavy packaging, tofu, soy milk. (milk, soy sauce, fruit juice. Tofu, soy milk); heavy bags, shrink wrap film, elastic film, liner film; construction film, general industrial packaging film and food bags. LDPE is also used for injection molded products, such as small containers, lids, daily products, plastic flowers, injection molding a stretch a blow molded containers. Medical appliances, pharmaceutical and food packaging materials, extruded pipes, sheets, wire and cable covering, profiles, thermoforming and other products; blow molding hollow molding products, such as food containers with dairy products and jams, drugs, cosmetics, chemical products containers, tanks and so on.
Product description:
English name Low density polyethylene (LDPE)
Production method Low density polyethylene can be divided into high pressure method and low pressure method according to the polymerization method. According to the type of reactor can be divided into kettle method and tube method. Ethylene as raw material, sent to the reactor, under the action of the initiator to high-pressure compression for polymerization reaction, from the reactor out of the material, through the separator to remove the unreacted ethylene after the melt extrusion granulation, drying, doping, and sent to the packaging.
Product Properties Low-density polyethylene is milky-white bead-shaped granules. It is non-toxic, tasteless, odorless and has no luster on the surface. The density is 0.916~0.930g/cm3. It is soft in nature, with good extensibility, electric insulation, chemical stability, processing performance and low temperature resistance (can withstand -70℃), but the mechanical strength, moisture barrier, air barrier and solvent resistance are poor. The molecular structure is not regular enough, the crystallinity (55%~65%) is low, and the melting point of crystallization (108~126℃) is also low.
Use Suitable for the production of film, heavy packaging film, cable insulation materials, blow molding and foaming products.
Packaging, storage and transportation The products are packed in polyethylene heavy-duty film bags, and polypropylene woven bags can be added as the outer packaging according to the needs of users. The products should be stored in a clean and dry warehouse, and can be transported by train, car or ship. During storage and transportation, attention should be paid to fire, water, sun, dust and pollution prevention. The means of transportation should be kept clean, dry, no nails and other sharp objects, and need to have a shed or canopy.