Daqing Petrochemical 2420D LDPE Blown Film Grade | High Toughness Anti-aging Heavy Packaging Resin
Daqing Petrochemical 2420D is mass-produced LDPE from PetroChina Daqing Petrochemical, a classic dedicated blown film grade. Featuring high melt strength, excellent dart impact resistance and low haze clarity, it delivers steady extrusion and easy bubble control during film production. Widely applied to industrial heavy-duty packaging, agricultural films and transparent packaging bags, this cost-effective domestic LDPE has consistent batch quality and acts as a staple base material for large-scale film manufacturing.
Core Product Parameters
Virgin LDPE pellets manufactured by Daqing Petrochemical, packed in 25kg original bags.
Product Grade: 2420DDensity: 0.923 g/cm³ (ISO 1183)
MFR: 0.25–0.32 g/10min (190℃/2.16kg, ISO 1133)
Vicat Softening Point: 94 ℃ (ISO 306)
Tensile Break Strength (MD/TD): 27 MPa / 20 MPa (ISO 527)
Elongation at Break (MD/TD): 200 % / 500 % (ISO 527)
Dart Impact Strength (50μm film): 250 g (ASTM D1709)
Haze (50μm film): ＜14 % (ASTM D1003)
Origin: Daqing Petrochemical, China
Basic Physical Properties: High Melt Strength for Stable Blown Film Processing
Daqing 2420D has low melt flow rate and high melt strength to offer sufficient melt tension during extrusion. It stabilizes film bubbles with little sway or breakage and even film thickness, ideal for long-term continuous mass production. Boasting great thermal stability and a Vicat softening point of 94℃, it resists heat and thermal aging well, effectively preventing film brittleness and cracking under high temperature and long-term outdoor exposure.
Mechanical Properties: High Toughness & Impact Resistance for Heavy-Duty Film
Films made of 2420D have balanced mechanical performance. Its transverse elongation at break hits 500% for superior ductility and deformation resistance, paired with 250g dart impact strength for excellent anti-impact, anti-tear and puncture resistance, reducing film damage during handling, stacking and outdoor use. The film surface is smooth with minimal fish eyes, retaining stable appearance while meeting toughness standards for heavy-duty packaging.
Optical Performance: Low Haze & High Clarity for Premium Packaging Display
Tested on 50μm standard film, 2420D features haze below 14% and favorable light transmittance. The film is clean and transparent without obvious fog or flaws. Its premium optical properties satisfy appearance requirements for transparent food bags, shrink films and daily packaging, clearly showcasing goods and boosting product competitiveness.
Processing Technology & Application Scope
Primarily optimized for blown film, it also fits extrusion and coating. It can be used alone or blended with other PE to adjust film rigidity, toughness and processability for diversified production needs.
Main Application Scenarios
Industrial Packaging: Heavy-duty sacks, industrial outer films, shrink films, thick protective filmsAgricultural Films: Greenhouse films, mulch films, weather-resistant outdoor agricultural filmsCivil Packaging: Food packaging films, shopping bags, daily transparent flexible packagingFunctional Films: High-temperature resistant films, long-life anti-aging outdoor films
Core Product Advantages
Low haze & high transparency: Smooth film with few fish eyes, stable appearance for all kinds of transparent packaging
High toughness & strong impact resistance: Great dart impact and tensile properties for long service life and less breakage
Heat & aging resistance: Stable thermal performance, suitable for high-temperature and long-term outdoor use
Stable mass production: High melt strength controls film bubbles steadily, lowering defect rates and production loss
Cost-effective domestic material: Steady large-plant supply, consistent batch quality and stable prices for mass film production
FAQ
Q1: What applications is Daqing 2420D suitable for?A: Daqing 2420D is a blown-film LDPE from PetroChina Daqing Petrochemical. Widely used in heavy-duty packaging films, weather-resistant agricultural films and transparent food packaging films, it is a versatile raw material for industrial and civil film production.
Q2: What are the core characteristics of Daqing 2420D?A: It delivers high toughness, outstanding impact resistance, excellent anti-aging performance and stable processability. High melt strength ensures smooth blown film production, while superior physical properties extend film service life in harsh environments.
Q3: Can 2420D be used for agricultural greenhouse and mulch films?A: Yes. It has excellent anti-aging, high-temperature and weather resistance. The film stays intact without cracking or pulverization under long-term sunlight and temperature fluctuations, making it perfect for agricultural film production.
Q4: Does 2420D offer good transparency for transparent packaging?A: With low haze and high light transmittance, it produces smooth, defect-free films that fully meet appearance standards for transparent food bags, shrink films and daily commodity packaging.
Q5: Is 2420D easy to process for mass production?A: Compatible with most standard blown film machines and featuring wide processing latitude. It maintains steady film bubbles and even thickness with low reject rates, ideal for continuous large-scale factory manufacturing.
Q6: What advantages does 2420D have over ordinary LDPE?A: Compared with general LDPE, 2420D has higher melt strength, better film toughness, superior impact and aging resistance, plus more stable extrusion performance. It is more applicable to heavy-duty, outdoor and high-standard film products.
Product Summary
Daqing Petrochemical 2420D is a well-balanced domestic blown-film LDPE. It integrates stable physical properties, excellent film-forming capacity, high toughness and anti-aging performance, covering industrial heavy packaging, weather-resistant agricultural films and civil transparent packaging. Supported by steady supply, outstanding cost performance and great adaptability to mass production, it is an ideal domestic LDPE grade for film manufacturers to upgrade product quality and control manufacturing costs.
