High-Density Polyethylene (HDPE) Grade I3UV

High-Density Polyethylene (HDPE) Grade I3UV is a specialized type of polyethylene designed with UV stabilizers to resist ultraviolet radiation. This grade is particularly suited for applications exposed to sunlight, such as agriculture, construction, and pipe manufacturing. Below, we discuss its specifications, applications, production methods, and technical data sheet.

1. General Specifications of HDPE Grade I3UV

• Density: Approximately 0.941 to 0.965 g/cm³.
• Molecular Weight: High molecular weight with a narrow distribution.
• Appearance: White or semi-transparent pellets.
• Mechanical Properties: High tensile strength and impact resistance.
• Operating Temperature: Can operate in temperatures ranging from -70°C to +120°C.
• Chemical Resistance: Excellent resistance to chemicals, acids, bases, and solvents.
• UV Resistance: Contains UV stabilizers for enhanced resistance to ultraviolet radiation.
• Recyclability: Fully recyclable and environmentally friendly.

2. Applications of HDPE Grade I3UV

Grade I3UV is used in various industries due to its excellent UV resistance:

a) Agriculture:

• Production of multi-purpose agricultural films (e.g., greenhouse films and weed barriers).
• Manufacturing water and chemical storage tanks exposed to sunlight.

b) Construction:

• Production of polyethylene sheets for insulation and sun protection.
• Manufacturing durable industrial components used outdoors.

c) Piping Industry:

• Manufacturing water and sewage pipes exposed to sunlight.
• Gas pipelines and fluid transfer lines in open environments.

d) Packaging Industry:

• Production of packaging films resistant to sunlight.

e) Other Industries:

• Manufacturing industrial and household containers exposed to sunlight.
• Production of automotive parts and military components requiring UV resistance.

3. Production Methods of HDPE

HDPE is typically produced through the polymerization of ethylene. The most common production methods include:

a) Slurry Process:

• Ethylene is polymerized in the presence of Ziegler-Natta catalysts.
• The final product is in the form of solid pellets.

b) Gas Phase Process:

• This method is used to produce HDPE with high molecular weight.
• Ethylene and catalysts react in the gas phase.

c) Solution Process:

• Ethylene is polymerized in specific solvents.
• This process is used to produce special HDPE grades like I3UV .

4. Technical Data Sheet for HDPE Grade I3UV

5. Advantages of HDPE Grade I3UV

• High Mechanical Strength: Resistant to pressure and impact.
• Excellent Chemical Resistance: Resistant to acids, bases, and solvents.
• Long Service Life: Resistant to environmental conditions and UV exposure.
• Recyclability: Environmentally friendly and fully recyclable.
• Lightweight and Flexible: Lightweight with high formability.

6. Disadvantages of HDPE Grade I3UV

• Sensitivity to High Temperatures: May deform at temperatures above 120°C.
• Higher Cost: Due to the addition of UV stabilizers, this grade is more expensive than standard HDPE grades.

7. Important Notes for Using HDPE Grade I3UV

• Storage: Should be stored in dry environments and away from direct sunlight.
• Production Process: Temperature and pressure conditions must be carefully controlled during manufacturing.
• Recycling: This product is recyclable and should be included in recycling cycles.