Daqing Petrochemical DFDA-7042 LLDPE Blown Film Resin: High-Performance Material for Packaging and Agricultural Films
Daqing Petrochemical DFDA-7042 is a high-quality LLDPE resin of PetroChina Kunlun brand. It is mainly used for blown film production. It has good tear resistance and puncture resistance. It runs stably during processing, and it has good compatibility with common processing equipment. It is a common raw material for packaging films, agricultural films and industrial films. It can match most common blown film machines, and it supports large-scale continuous production.
1. Basic Product Specifications
This virgin resin is produced by gas-phase process. Its pellets are uniform and have no impurities. Each bag is packed with 25kg resin. We provide COA for each batch, so users can track product quality completely.
Density: 0.920 g/cm³ (typical range: 0.917–0.923 g/cm³)
Melt Flow Rate (MFR): 2.0 g/10min (190°C/2.16 kg, typical range: 1.5–2.5 g/10min)
Tensile Yield Strength: ≥8.5 MPa
Fish Eyes: ≤8 pieces per 1520 cm² (film thickness: 0.8 mm)
2. Core Product Advantages
Strong Mechanical Performance
This resin has special molecular structure, so it owns high toughness and ductility. The finished films can resist stretching, impact, puncture and cracking well. It has proper stiffness. It balances mechanical strength and good film hand feel. It can reduce raw material waste, and it can also prolong the service life of finished film products.
Stable Processing Performance
This resin has stable melt strength. It can keep stable film bubble and even film thickness in production. It can work with single-screw blown film machines and three-layer co-extrusion blown film machines. It rarely causes gels, unstable film bubbles and uneven film thickness. It lowers production startup difficulty, and it also reduces product defect rate.
Good Weather Resistance for Wide Uses
It has good low temperature resistance, heat resistance and environmental stress crack resistance. It will not turn brittle in cold environments, and it will not degrade under high processing temperature. It is suitable for long-term indoor use and short-term outdoor use. If users need long-term outdoor use, please mix this resin with UV masterbatch to improve ultraviolet resistance.
Food Contact Safety and Good Blending Performance
This is pure virgin resin. It meets national food contact material standards, so it can be used for ordinary food packaging. Users can mix this resin with LDPE and HDPE. This method can adjust film stiffness, gloss and flexibility easily to meet different production demands.
3. Main Application Fields
Packaging Films
Shopping bags, T-shirt bags, food packaging bags, garbage bags, stretch films
Agricultural Films
Farm mulch films, greenhouse films, agricultural protective films
Industrial Films
Heavy-duty packaging films, chemical product inner liners, equipment protective films, container stretch films
4. Processing Guidelines
Recommended Process Parameters
Blown film temperature: 185–205°C
Blow-up ratio: 2.2–3.8
Production Suggestions
Change processing temperature properly according to actual equipment and film thickness.
Do small-batch production tests before mixing this resin with other polyethylene materials, and check the stability of production formula and processing condition.
Store the resin in dry, cool and ventilated warehouses. Keep it away from rain, direct sunlight and open fire. Follow the first-in and first-out storage rule.
5. Frequently Asked Questions
Q1: Is DFDA-7042 suitable for food contact packaging?
A1: This virgin LLDPE resin meets national food contact standards. It can be used directly for ordinary food packaging. If the packaging is used for high-temperature food or oily food, please do migration tests for finished products, and keep batch COA files for quality traceability.
Q2: Can this resin be blended with LDPE and HDPE?
A2: Yes, blending is available. Mixing with LDPE can improve film gloss and processing performance. Mixing with HDPE can improve film stiffness. Please carry out small-batch tests before mass production.
Q3: What is the minimum order quantity and packaging specification?
A3: Standard packaging is 25kg per bag. The minimum order quantity is one single bag. We support sample orders, less-than-truckload delivery and full truckload delivery.
Q4: Do users need to add extra additives for long-term outdoor use?
A4: This resin has basic weather resistance for short-term outdoor use. Users need to add UV masterbatch to enhance anti-ultraviolet performance for long-term outdoor usage.
6. Product Summary
Daqing Petrochemical DFDA-7042 is a general-purpose LLDPE blown film resin with balanced overall performance. It has stable processing performance and reliable mechanical properties, so it is widely used in film manufacturing industry. We keep sufficient product inventory and stable batch quality all the time, and we can support long-term bulk orders.
Please contact us if you need complete technical data sheets, free product samples and bulk purchase quotations.
