Products
Polyethylene
HDPE Wire and Cable Extrusion
LLDPE Wire and Cable Extrusion
LDPE Wire and Cable Extrusion
What's LDPE Film Extrusion?
Zero Polymer’s LDPE Film Extrusion involves creating thin plastic films from Low-Density Polyethylene (LDPE) using a process called blown film extrusion. In this process, various grades of LDPE, such as 2420, 0075, 020, 190, and 2102, are specially formulated to meet the demands of specific applications, each bringing its own characteristics to the table. These grades of LDPE differ primarily in molecular weight, melt flow index, and density, affecting the film’s properties such as flexibility, strength, and clarity.
Key LDPE Grades for Film Extrusion:
Grade 2420
Properties:
LDPE 2420 is a medium-density polymer with a balanced melt flow and flexibility. It provides good transparency, tensile strength, and sealability. The film made from this grade has a combination of good processability and strength, making it suitable for a variety of packaging needs.
Applications:
This grade is often used in general packaging films, grocery bags, retail wraps, and food packaging. It is a go-to option for products that require flexibility, clarity, and heat-sealing properties.
Performance:
Offers a good balance of toughness and clarity, which is important in films used to display products clearly while providing durability. Read more….
Grade 0075
Properties:
LDPE 0075 has a lower melt index compared to other grades, making it less fluid but stronger and more puncture-resistant. This grade is ideal for applications requiring tougher films that can withstand abrasion and punctures.
Applications:
This grade is perfect for industrial liners, stretch films, heavy-duty bags, and protective wraps that need to resist tearing and withstand harsh environments. It’s used for construction wraps, agricultural films, and waste containment.
Performance:
0075 films exhibit excellent durability, offering high tear resistance and strength, making them suitable for robust packaging applications. Read more….
Grade 020
Properties:
LDPE 020 offers excellent clarity and flexibility, making it ideal for films where visibility is important. The film made from this grade is lightweight and easy to stretch, with good sealability.
Applications:
Used in food packaging (such as produce bags, snack wrappers, and retail bags), this grade allows consumers to easily see the product inside. It’s also great for shrink wraps and garment bags where transparency is crucial.
Performance:
Provides good flexibility and clarity, ensuring that the product is not only visible but protected while maintaining a lightweight structure for easy handling. Read more….
Grade 190
Properties:
LDPE 190 is known for its strength and UV resistance. This grade is designed for outdoor use and can withstand exposure to sunlight without breaking down, making it UV-stabilized.
Applications:
Ideal for agricultural films such as greenhouse covers, mulch films, and silage bags, as well as outdoor tarps and pallet covers. Its weather resistance makes it suitable for outdoor environments.
Performance:
Provides toughness, UV resistance, and abrasion resistance, making it perfect for applications that require long-term outdoor exposure. Read more….
Grade 2102
Properties:
LDPE 2102 is a medium melt index grade, offering a good balance between strength, processability, and tear resistance. It is easy to process, yet still tough enough for a variety of applications.
Applications:
This grade is suitable for stretch films, food packaging, industrial films, and protective wraps. It provides the right mix of tensile strength and flexibility, making it a solid option for applications requiring both ease of handling and robust performance.
Performance:
Offers a smooth extrusion process, consistent thickness, and tear resistance, which is ideal for packaging applications that need reliability and durability. Read more….
How the LDPE Grades Differ:
- Melt Flow Index (MFI):
Grades like 0075 with a lower melt index flow less easily but are tougher, offering better tear resistance. On the other hand, grades like 2420 and 020 with a higher melt index have easier flow, making them better for applications that need flexibility and ease of processing. - Density:
Higher density LDPE (like 0075) tends to be stronger and more puncture-resistant, while lower-density grades (like 2420 and 020) provide more flexibility and transparency, ideal for packaging that needs to be flexible and see-through. - UV Resistance:
Certain grades like 190 are engineered for outdoor applications, offering resistance to UV degradation. This makes it essential for agricultural films, outdoor wraps, and other long-term exposure uses.
Applications of LDPE Film Extrusion Grades:
- Food Packaging:
2420 and 020 are commonly used for produce bags, snack wraps, and other retail packaging due to their clarity and sealability. - Industrial and Heavy Duty Films:
0075 is designed for stretch films, industrial wraps, and liners due to its high puncture resistance and tear strength. - Agricultural Films:
190 is tailored for outdoor agricultural uses such as mulch films and greenhouse covers, where UV protection and weatherability are crucial. - Stretch Films and Packaging:
2102 is ideal for food packaging and stretch wraps, offering a good mix of strength and flexibility, making it suitable for both industrial and retail applications.