Polyethylene is a thermoplastic polymer with a variable crystalline structure and a vast range of applications depending on the particular type. It is one of the most widely produced plastics in the world, with tens of millions of tons produced worldwide each year. The commercial process (the Ziegler-Natta catalysts) that made PE such a success was developed in the 1950s by two scientists, Karl Ziegler of Germany and Giulio Natta of Italy.

There are several types of polyethylene, and each one is best suited for a different set of applications. Generally speaking, High-Density Polyethylene (HDPE) is much more crystalline and is often used in entirely different circumstances than Low-Density Polyethylene (LDPE). For example, LDPE is widely used in plastic packagings, such as for grocery bags or plastic wrap. HDPE, by contrast, has common applications in construction (for example, in its use in the fabrication of drain pipes). Ultrahigh Molecular Weight Polyethylene (UHMW) has high-performance applications in things such as medical devices and bulletproof vests.

Types of Polyethylene

PE belongs to the polyolefin family of polymers and is classified by its density and branching. The most common types of polyethylene are:

• • Branched Versions
    • Low-density polyethylene (LDPE)
    • Linear low-density polyethylene (LLDPE)

• • Linear Versions
    • High-density polyethylene (HDPE)
    • Ultra-high-molecular-weight polyethylene (UHMWPE)

• Cross-linked polyethylene (PEX or XLPE)

In addition, PE is also available in other types such as (not discussed in detail in this guide)
Medium-density polyethylene (MDPE)

• Very-low-density polyethylene (VLDPE)
• High-molecular-weight polyethylene (HMWPE)
• Ultra-low-molecular-weight polyethylene (ULMWPE)
• Chlorinated polyethylene (CPE)

Polyethylene Grade

-EX3

“EX3 (GM 5010 T2N)” is a natural colored high-density polyethylene with Butene-1 as a comonomer. The product is classified as PE100 and shows good stress crack resistance properties (ESCR) combined with good impact strength.

Applications:

• Pipe Extrusion PE100 Class
• Pressure pipe
• Drinking water and gas pipes
• Discharge pipes
• Sewer pipes and their fittings
• For injection molded and other fittings

-EX5

HM-9450F (EX5) is blown film grade resin that is manufactured by suspension polymerization of ethylene monomer. HM-9450F (EX5) is a bi-model high-density polyethylene with 1-Butene as a comonomer.

Applications:

For blown films with paper-like quality, suitable for counter bags, Carrier bags, and wrapping films

-BL3

HF- 4760 (BL3) is a high-density polyethylene with 1-Butene as a co monomer.it is high density and stiffness, good ESCR, high rigidity, good flowability, and impact strength.

Applications:

– Small blow molding

– Bottles

– Containers (up to 5 lit)

-Packaging of pharmaceuticals & surfactants

-7000F

HD7000F is a high-density polyethylene film grade which well known for high-quality film applications. This grade is excellent for thin-film processing with high mechanical strength, good stiffness, and good heat sealability. It is suitable for producing general purpose packaging films in a wide range of sizes and thicknesses.

Applications:

-Recommend film thickness at 10-25 micron

– High tensile strength with good dart impact strength

– Low gel contact

– Good moisture barrier

– Food contact applicable (Complies with U.S 21 CFR 177.1520)

-Good impact resistance and processability

– shopping bag and T-shirt bag

– Garbage bag

– Liner bag

– Enhanced  ultra-thin film

– High stiffness

– Wide service temperature range, UV resistance

-3840UA

HD3840UA is a high-density polyethylene copolymer containing butene-1(C4) as a comonomer.

It is suitable for use in rotational molding applications.

HD3840UA has the following characteristics:

good impact strength, easy to demould, UV stabilized, good whiteness, excellent surface finish.

This grade has food contact approval.

Applications:

general-purpose rotomolded items, septic tanks, recycling tanks

-6070UA

HD6070UA is a high-density polyethylene copolymer containing butene-1(C4) as a comonomer with medium content of light stabilizer additives. It is suitable for general-purpose injection molding items.

HD6070UA has the following characteristics:

good impact strength, easy processing, high warpage resistance, high rigidity, UV stabilized.

This grade has food contact approval.

Applications:

crates,boxes,seats

-CRP100N

“HM-CPR 100 (N)” is a high-density polyethylene with Butene-1 as a co monomer. The product is classified as PE100 and shows good stress crack resistance properties (ESCR) combined with good impact strength.

Applications:

• Pipe Extrusion PE100 Class
• Industrial and Pressure pipe
• Drinking water and gas pipes
• Discharge pipes
• Sewer pipes and their fittings

-2420 H

Lupolen 2420 H is a non -additive, low-density Polyethylene. It is delivered in pellet form.

Applications

• Bags & Pouches
• Film
• Shrink Film
• Blown Film

-LFI 2130

LFI2130 is a high molecular weight, low-density polyethylene for producing heavy-duty packaging films for applications like shrink hoods. It contains no slip agent and antiblock additives. It gives outstanding strength and toughness, drawdown ability, and very good biaxial shrink properties. LFI2130 has been manufactured under SABTEC licensed technology.

Applications:

Multipurpose blow molding process, small blow molded articles, containers for household and Blown film extrusion, heavy-duty packaging film, shrink hoods, industrial sacks, carrier bag, and liners

-LTM 2119X

LTM 2119 X has been manufactured using SABTEC licensed technology. LTM 2119X is a general-purpose grade without additives. This grade offers high output and excellent drawdown.

Applications:

LTM 2119X is suitable for general-purpose film and lamination.

• Food packaging The above-mentioned grade meets the relevant requirements of plastics directive 2002/72/EC (06-08-2002) and its amendments till directive 2008/39EC relating to plastic materials and articles intended to come into contact with foodstuffs.

· Pharmaceutical The above-mentioned grade meets the requirements of the European pharmacopeia version 6 section 3.1.5 for pharmaceutical application

-L2100TN00

Low-density polyethylene (LDPE) is a thermoplastic made from monomer ethylene. It was the first grade of polyethylene. LDPE is defined by a density range of 0.917–0.930 g/cm³.

LDPE has more branching (on about 2% of the carbon atoms) than HDPE, so its intermolecular forces (instantaneous-dipole induced-dipole attraction) are weaker, its tensile strength is lower, and its resilience is higher. Also, because its molecules are less tightly packed and less crystalline due to the side branches, its density is lower. LDPE uses majorly revolve around manufacturing containers, dispensing bottles, wash bottles, tubing, plastic bags for computer components, and various molded laboratory equipment. LDPE has excellent resistance to acids, bases, and vegetable oils.

Applications:

Grade with excellent toughness and tear strength and outstanding shrink properties. very low energy consumption during processing and has excellent drawdown ability. The material contains no additives and is suitable for application in shrink hoods, industrial sacks, heavy-duty carrier bags, and liners.

-LL0209AA

“LL 0209AA” is an LLDPE copolymer with butene as a comonomer that contains antioxidants. It is recommended for general purpose applications. It is suitable for blending with conventional LDPE.

The film made from pure LL 02090 AA has the following advantages over conventional LDPE. Better sealing, higher puncture resistance. Greater drawdown capability. Higher tensile strength. Neutralizer: Calcium Stearate. Antioxidant:  lrganox1010, lrganox168

Applications:

• Food Grade
• Heavy-duty sacks, agricultural films, liners.