1. Apply the film
Low-density polyethylene is widely used as a packaging material for various foods, clothing, medicines, fertilizers, industrial products, and agricultural films. It can also be processed into a composite film by extrusion for packaging heavy objects.
Since 1975, high-density polyethylene film has also been developed, which has high strength, low temperature resistance, moisture resistance, and good printability and processability.
In addition, polyethylene coatings can be extruded on paper, aluminum foil or other plastic films to make polymer composites.
2. Hollow products
High-density polyethylene has high strength and is suitable for hollow products. Such as milk bottles, detergent bottles;
3. Tubular plates
The extrusion method can produce polyethylene pipes, and high-density polyethylene pipes have high strength and are suitable for underground laying; The extruded sheet can be reprocessed; High-density polyethylene can also be made into low-density foam plastic by foam extrusion and foam injection method as a tabletop and building materials; Protective sleeves (e.g. cable sheaths).
4. Fiber
In China, it is called polyethylene, which is generally used as a raw material and spun into synthetic fibers. Polypropylene is mainly used in the production of fishing nets and ropes, or spun into staple fibers for use as flocculents, and can also be used in industrial acid and alkali resistant fabrics.
Ultra-high strength polyethylene fiber (strength up to 3~4GPa) has been developed, which can be used as bulletproof vests, composite materials for automobiles and marine operations.
5. Miscellaneous items
Miscellaneous products produced by injection molding include daily necessities, artificial flowers, turnover boxes, small containers, parts of bicycles and tractors, etc.; refrigerator containers, storage containers, household kitchenware, sealing lids, etc.; High-density polyethylene is used in the manufacture of structural parts.