LDPE
LDPE Injection Molding service
What Is Low Density Poly-Ethylene (LDPE)?
Low-density polyethylene (LDPE) is a thermoplastic polymer known for its low density and excellent flexibility. It's widely used in injection molding for producing flexible and lightweight plastic parts, including packaging materials, toys, and medical devices.
Common grades of LDPE that Neway used for injection molding include:
LDPE 2420
LDPE 1020
LDPE 4020
LDPE 5820
LDPE 7020
Injection Molding LDPE Grades Comparison
Comparing LDPE grades for injection molding provides distinct benefits in selecting plastic materials for your projects. Higher-density LDPE offers improved strength and rigidity for structural components, while lower-density LDPE delivers exceptional flexibility for packaging and disposable items. Tailoring the LDPE grade optimizes performance and cost-efficiency in various applications.
Features And Applications of LDPE
LDPE Grade | Key Features | Applications |
|---|---|---|
LDPE 2420 | High flexibility, good electrical insulator. | Plastic bags, packaging materials. |
LDPE 1020 | Excellent chemical resistance impact strength. | Laboratory equipment, chemical tanks. |
LDPE 4020 | Balanced stiffness and flexibility, easy to process. | Toys, medical devices, squeeze bottles. |
LDPE 5820 | High tensile strength abrasion resistance. | Automotive components, tubing. |
LDPE 7020 | Superior impact resistance toughness. | Garbage cans, industrial containers. |
Injection Molded LDPE Typical Properties
Property | Density (g/cm³) | Tensile Strength (MPa) | Tensile Elongation (%) | Flexural Modulus (MPa) | Flexural Strength (MPa) | Izod Impact Strength (J) | Heat Deflection Temp. (°C) | Shrinkage (%) | Hardness (Shore D) |
|---|---|---|---|---|---|---|---|---|---|
LDPE 2420 | 0.922 | 8.5 | 300 | 130 | 12.0 | 30 | 60 | 1.5 | 50 |
LDPE 1020 | 0.923 | 9.0 | 350 | 140 | 12.5 | 35 | 65 | 1.4 | 52 |
LDPE 4020 | 0.924 | 9.5 | 400 | 150 | 13.0 | 40 | 70 | 1.3 | 54 |
LDPE 5820 | 0.925 | 10.0 | 450 | 160 | 13.5 | 45 | 75 | 1.2 | 56 |
LDPE 7020 | 0.926 | 10.5 | 500 | 170 | 14.0 | 50 | 80 | 1.1 | 58 |
Benefits of Neway LDPE Grades
LDPE 2420
1. Flexibility: LDPE 2420 is known for its high flexibility, making it suitable for applications where the material needs to bend and deform without breaking.
2. Impact Resistance: It exhibits excellent impact resistance, crucial in applications where the material may experience sudden shocks or impacts.
3. Low Density: LDPE 2420 is low, making it lightweight and ideal for applications where weight is a concern.
4. Applications: Commonly used for producing flexible packaging materials such as plastic bags, shrink wrap, and various types of containers.
LDPE 1020
1. Transparency: LDPE 1020 is known for its transparency, making it suitable for applications with a desired transparent or translucent appearance.
2. Chemical Resistance: It offers good resistance to chemicals, making it a choice for chemical storage containers.
3. Ease of Processing: LDPE 1020 is easy to process, making it ideal for blow molding or film extrusion applications.
4. Applications: Used for clear food packaging, laboratory equipment, and disposable gloves.
LDPE 4020
1. High Tensile Strength: LDPE 4020 possesses higher tensile strength, making it suitable for more structural integrity applications.
2. Abrasion Resistance: It offers good resistance to abrasion, making it suitable for applications where the material might come into contact with abrasive surfaces.
3. Ductility: LDPE 4020 exhibits excellent flexibility, making it a choice for products that need to be stretched or bent.
4. Applications: Commonly used for manufacturing hoses, industrial liners, and agricultural films.
LDPE 5820
1. High Impact Strength: LDPE 5820 has superior impact strength, making it ideal for applications where the material must withstand heavy loads.
2. UV Resistance: It offers good resistance to UV radiation, making it suitable for outdoor applications requiring long-term sunlight exposure.
3. Low Shrinkage: LDPE 5820 exhibits low shrinkage during cooling, ensuring accurate and dimensionally stable parts.
4. Applications: Used for playground equipment, outdoor furniture, and automotive interior components.
LDPE 7020
1. High-Temperature Resistance: LDPE 7020 can withstand higher temperatures without deforming, making it suitable for heat exposure applications.
2. Chemical Compatibility: It offers excellent resistance to various chemicals, making it suitable for chemical processing equipment.
3. Low Water Absorption: LDPE 7020 has low water absorption, making it ideal for applications in humid environments.
4. Applications: Commonly used in producing laboratory equipment, chemical storage tanks, and electrical insulators.
What We Can Do In Injection Molding
Neway offers a variety of injection molding process options, including:
1. Plastic Injection Molding Service
4. Multi Shoot Injection Molding Service
And various standard and custom materials for injection molding, including:
Injection Molded Plastic Optional
Thermoplastics | Thermosets | |||
Medical-Grade silicone rubber | ||||
Optical silicone rubber | ||||
Plastic Injection Molding FAQs
1. What Are The Common Defects In Injection-molded Parts?
2. What Materials Are Used In Injection Molding?
3. What Are the Types and Applicability of Custom Injection Molding
4. Typical Sized Plastic Parts Molded on a 260-Ton Injection Molding Machine
Explore Related Blogs
