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[Chemical Knowledge]：What are the upstream raw materials of PE hollow? What do the downstream products contain?

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The upstream and downstream related products
of PE hollow products
in the field of chemical production raw materials, PE hollow products as a common plastic products, its upstream and downstream related products are quite rich. This article will detail the upstream and downstream related products of PE hollow products, including their types, applications and production processes.

1. upstream related products

1. Polyethylene resin

Polyethylene resin is the main raw material of PE hollow products. It is a polymer compound polymerized from ethylene monomer. According to the different density and molecular structure, polyethylene resin can be divided into low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE) and other types. These different types of polyethylene resins are different in performance, so the application areas are also different.

2. Additive

In order to improve the performance of PE hollow products, it is usually necessary to add some auxiliary materials during the production process, such as antioxidants, anti-ultraviolet agents, pigments, etc. The type and amount of these additives need to be adjusted according to specific product requirements.

2. downstream related products

1. Packaging container

PE hollow products as a common packaging material, widely used in food, medicine, cosmetics and other fields. The PE hollow container made by blow molding, injection molding and other processes has the advantages of light weight, durability and moisture resistance, which can meet the packaging needs of different products.

2. Pipeline

PE hollow products can also be used to produce pipelines, such as water supply and drainage pipelines, gas pipelines, etc. Because polyethylene resin has excellent corrosion resistance and anti-aging properties, PE pipes are widely used in municipal engineering, construction and other fields.

3. Toy

PE hollow products can also be used to produce toys, such as plastic balls, slides, etc. These toys are colorful, portable, safe and non-toxic, and are loved by children.

3. production process
The production process of
PE hollow products mainly includes blow molding and injection molding. The blow molding process is to heat and melt the polyethylene resin, extrude it through an extruder, then introduce compressed air to expand it, and finally cool and set it to obtain hollow products. The injection molding process is to mix polyethylene resin and other additives, inject it into the mold, and obtain hollow products through pressure holding, cooling and other steps. These two processes have their own advantages and disadvantages, and need to be selected according to the specific product type and production needs.

4. market status and future development trends

With the advancement of technology and the continuous changes in consumer demand, the market status and future development trends of PE hollow products are also changing. At present, with the improvement of environmental awareness and the popularization of the concept of sustainable development, high-performance, environmentally friendly PE hollow products have gradually become the mainstream of the market. In the future, with the continuous emergence of new materials and technologies, PE hollow products will be applied in more fields, and their performance and quality will be further improved.

In short, PE hollow products as a chemical production of raw materials in the field of an important product, its upstream and downstream related products are quite rich. Through the selection and control of upstream raw materials such as polyethylene resin and additives, as well as the optimization of production processes such as blow molding and injection molding, PE hollow products can be produced to meet the needs of different fields. At the same time, with the continuous changes in market demand and the continuous advancement of technology, the future development prospects of PE hollow products are broad.

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