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PE Material

Basic characteristics

Physical properties

It is non-toxic and odorless, presenting as a milky white waxy solid, with a waxy feel to the touch.

It exhibits excellent low-temperature resistance (with a minimum operating temperature range of -100 to -70℃), good chemical stability, and resistance to acid and alkali corrosion (but not to strong oxidizing acids).

It has strong electrical insulation and low water absorption, but poor heat resistance (long-term use temperature is generally <80℃).

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    Basic characteristics

    Mechanical properties

    Lightweight and flexible, but with weak resistance to environmental stress.

    It exhibits excellent wear resistance and impact resistance, particularly in ultra-high molecular weight polyethylene (UHMWPE).

    Main classification

    Based on density and structural differences, they are divided into three categories:

    High-density polyethylene (HDPE)

    With high crystallinity, high hardness, and good wear resistance, it is used for water pipes, industrial parts, plastic buckets, etc.

    Low-density polyethylene (LDPE)

    Soft, transparent, and highly malleable, it is often used in thin film products such as plastic bags and cling film.

    Linear low-density polyethylene (LLDPE)

    Balancing strength and toughness, it is suitable for packaging films, agricultural films, and injection molded products.

    Application Fields

    Packaging materials: accounting for 34% of global production, used for plastic bags, films, containers, etc.

    Industrial components:

    Pipes (water supply and drainage, gas pipes), plates (anti-corrosion lining plates, irregular-shaped parts).

    Storage tank lining (resistant to acid and alkali corrosion), mechanical parts (gears, bearings).

    Household goods and building materials: furniture, pallets, insulation materials, etc.

    Environmental friendliness

    It is recyclable and does not produce toxic gases when burned, meeting environmental protection requirements.

    Summary: Polyethylene (PE), as the most widely produced plastic globally, is extensively utilized in packaging, construction, industrial, and daily-use products due to its characteristics such as low-temperature resistance, corrosion resistance, and lightweight and easy-to-process nature. Its performance varies depending on the type (HDPE/LDPE/LLDPE), necessitating the selection of an appropriate type based on the specific scenario.

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