DGK-LDPE DD4-5 Conductive PE Data Sheet: 10³-10⁵ Ω Surface Resistance
A data-sheet interpretation of DGK-LDPE DD4-5 conductive LDPE, connecting 10³-10⁵ Ω surface resistance, carbon black network design, film processing and ESD packaging validation.
Related DEYU references: DGK-LDPE DD4-5 product page and conductive LDPE / PE application guide.
This product page addresses packaging engineers, film extruders, and procurement specialists who need a high-conductivity LDPE compound for ESD packaging, films, bags, and thermoformed trays. The page establishes DGK-LDPE DD4-5 as a reliable conductive PE achieving surface resistivity of 10³–10⁵ Ω — suitable for electronics packaging and static-sensitive industrial applications.
Product Overview
DGK-LDPE DD4-5 is DEYU's high-conductivity low-density polyethylene (LDPE) compound, engineered for extrusion and injection molding applications requiring reliable static dissipation. With surface resistivity in the 10³–10⁵ Ω range, this material bridges the gap between conventional anti-static LDPE (10⁹–10¹¹ Ω) and ultra-conductive grades, delivering consistent ESD protection for packaging, films, and industrial components.
What 10³–10⁵ Ω surface resistivity means in context:
| Material Type | Typical Surface Resistivity | Comparison to DGK-LDPE DD4-5 |
|---|---|---|
| Standard LDPE (unfilled) | >10¹² Ω | Millions of times higher |
| Anti-static LDPE | 10⁹–10¹¹ Ω | 10,000–100,000× higher |
| Dissipative LDPE | 10⁶–10⁹ Ω | 10–1,000× higher |
| DGK-LDPE DD4-5 | 10³–10⁵ Ω | Baseline |
| Highly conductive grades | 10¹–10² Ω | Comparable |
DGK-LDPE DD4-5 achieves surface resistivity in the 10³–10⁵ Ω range — 1–3 orders of magnitude lower than standard dissipative conductive LDPE (10⁶–10⁹ Ω). This ultra-low resistivity enables applications where rapid static charge dissipation is critical for protecting sensitive electronic components.
Key applications:
ESD bags and films for electronic components
Thermoformed ESD trays and blisters
FIBC liners for hazardous powders
Anti-static packaging for semiconductor handling
Cleanroom liners and waste sacks
Conductive extrusion profiles and tubing
Injection-molded ESD containers and component carriers
Key features:
| Feature | Benefit |
|---|---|
| Surface resistivity 10³–10⁵ Ω | Reliable ESD protection for sensitive components |
| LDPE base resin | Excellent flexibility, chemical resistance, and processability |
| Extrusion and injection molding compatible | Versatile processing options |
| Permanent conductivity | Humidity-independent performance — no surface migration or wash-out |
| High elongation (410%) | Excellent ductility for film and bag applications |
| Lightweight (0.91 g/cm³) | Cost-effective shipping and handling |
Technical Foundation — How DGK-LDPE DD4-5 Achieves Stable Conductivity
1. Conductive Carbon Black Network
DGK-LDPE DD4-5 utilizes a carefully optimized carbon black conductive network dispersed throughout the LDPE matrix. The carbon black particles form a percolated network that provides continuous conductive pathways through the insulating polymer. This network is permanent, humidity-independent, and does not migrate to the surface or wash out over time — unlike ionic antistatic additives that lose effectiveness in low-humidity conditions.
2. LDPE Matrix — The Right Balance
LDPE was selected as the base resin for its unique combination of properties:
| Property | Value | Advantage |
|---|---|---|
| Density | 0.91 g/cm³ | Lightweight — reduces shipping costs |
| Flexibility | Excellent | Suitable for films, bags, and flexible packaging |
| Chemical resistance | Good | Withstands cleaning agents and industrial environments |
| Processability | Excellent | Compatible with blown film, cast film, extrusion, and injection molding |
| Elongation | 410% | High ductility for demanding packaging applications |
3. Processing Flexibility
DGK-LDPE DD4-5 supports multiple processing methods, making it adaptable to different manufacturing requirements:
| Processing Method | Suitability | Typical Applications |
|---|---|---|
| Blown film | Excellent | ESD bags, liners, films |
| Cast film | Excellent | Thin packaging films |
| Extrusion | Excellent | Sheets, profiles, tubing |
| Injection molding | Good | Trays, containers, components |
4. Permanent, Humidity-Independent Conductivity
Unlike ionic antistatic coatings or additives that depend on ambient humidity for performance, carbon black-filled conductive LDPE provides permanent, volume-conductive ESD protection that is completely independent of ambient humidity. This is a critical advantage for packaging applications where humidity conditions may vary during storage and transport.
5. Surface Resistivity of 10³–10⁵ Ω
The 10³–10⁵ Ω surface resistivity range provides:
Rapid static dissipation — charges are safely conducted away before accumulating to damaging levels
Dust prevention — reduced electrostatic attraction minimizes dust accumulation on surfaces
ESD protection — protects sensitive electronic components during handling and transport
Grounding capability — provides a low-resistance path to ground for charge dissipation
Product Data
Core Specifications (from Certificate of Analysis):
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Product Model | DGK-LDPE DD4-5 (DD4-5A1) | — | — |
| Base Resin | LDPE | — | — |
| Appearance | Black | — | — |
| Density | 0.91 g/cm³ | GB/T 1033-1986 | Lightweight — cost-effective shipping |
| Surface Resistivity | 10³–10⁵ Ω | GB/T 1401-2002 | Ultra-low — stable ESD protection |
| Flammability | HB | UL-94 GB/T 2408-1996 | — |
| Processing Methods | Extrusion, injection molding | — | Versatile processing |
All listed data are reference values from the test direction stated in the certificate of analysis.
Mechanical Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Tensile Strength | 18 MPa | GB/T 1040-2006 | — |
| Yield Strength | 8.7 MPa | GB/T 1040-2006 | — |
| Bending Strength | 7.4 MPa | GB/T 9341-2008 | — |
| Flexural Modulus | 360 MPa | GB/T 9341-2008 | Moderate flexibility |
| Charpy Notched Impact | 12 kJ/m² | GB/T 1043.1-2008 | Good impact resistance |
| Izod Notched Impact | No break | GB/T 1843-2000 | Exceptional ductility |
| Elongation at Break | 410% | GB/T 1040-2006 | Excellent ductility for films and bags |
All listed data are reference values from the test direction stated in the certificate of analysis.
Thermal and Flow Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Melt Flow Rate (MFR) | 4.5 g/10min | GB/T 3682-2000 | Good flow for extrusion and molding |
| Heat Deflection Temperature | 95°C | GB/T 1633-2000 | A method — 120°C |
| Drying Temperature | 90°C | — | Before processing |
| Drying Time | 4–5 hours | — | — |
| Processing Temperature | 225–230°C | — | Extrusion, injection molding |
| Mold Temperature | 80°C | — | Recommended |
All listed data are reference values from the test direction stated in the certificate of analysis.
Application Deep Dive
1. ESD Bags and Films
DGK-LDPE DD4-5 is ideal for manufacturing ESD bags and films for electronic components. The 10³–10⁵ Ω surface resistivity provides rapid static dissipation, protecting sensitive ICs, semiconductors, and electronic assemblies during storage and transport.
Key features for film applications:
High elongation (410%) — excellent tear resistance and durability
Good melt strength — supports blown film processing
Uniform conductivity — consistent ESD protection across the film surface
Light-tight — carbon black blocks light, protecting light-sensitive components
2. Thermoformed ESD Trays and Blisters
For thermoformed trays and blisters, DGK-LDPE DD4-5 offers the right balance of formability and conductivity.
Key features for thermoforming:
Good formability — can be formed into complex shapes
Consistent conductivity — maintains ESD protection after forming
Impact resistance — 12 kJ/m² Charpy impact protects components
Lightweight — reduces shipping costs
3. FIBC Liners and Hazardous Material Packaging
DGK-LDPE DD4-5 is suitable for FIBC liners and packaging for flammable or explosive materials that require static dissipation.
Key features for hazardous material packaging:
Surface resistivity 10³–10⁵ Ω — effective grounding for hazardous materials
Permanent conductivity — does not degrade over time
Chemical resistance — withstands aggressive materials
Moisture protection — barrier properties for sensitive contents
4. Injection-Molded ESD Components
DGK-LDPE DD4-5 can be injection molded into ESD-safe containers, trays, and component carriers.
Key features for injection molding:
Good flow (MFR 4.5 g/10min) — fills complex geometries
No break Izod impact — exceptional toughness
Dimensional stability — consistent part quality
Processing Guidelines
Recommended Processing Parameters:
| Parameter | Value | Notes |
|---|---|---|
| Drying Temperature | 90°C | — |
| Drying Time | 4–5 hours | Ensure thorough drying before processing |
| Processing Temperature | 225–230°C | Extrusion, injection molding |
| Mold Temperature | 80°C | Recommended |
Key Processing Considerations:
| Consideration | Importance | Guidance |
|---|---|---|
| Pre-drying | Critical | Moisture can affect surface quality; dry at 90°C for 4–5 hours |
| Temperature control | High | Maintain processing temperature within 225–230°C range |
| Shear control | Moderate | Optimize screw speed to prevent filler network disruption |
| Cooling | Moderate | Uniform cooling for dimensional stability |
Drying Requirement:
DGK-LDPE DD4-5 contains conductive fillers that can be affected by moisture. Proper drying is essential:
Drying temperature: 90°C
Drying time: 4–5 hours
Moisture content target: <0.1%
Film Extrusion:
For blown film extrusion, DGK-LDPE DD4-5 provides:
Good melt strength for bubble stability
Consistent gauge control
Uniform conductivity across the film width
Injection Molding:
For injection molding, DGK-LDPE DD4-5 provides:
Good flow for complex geometries
Low warpage
Consistent part-to-part conductivity
Customer Validation Scenario
Context: A manufacturer of ESD-safe packaging for semiconductor components was producing anti-static bags from a standard LDPE film. The film had surface resistivity of 10⁶–10⁹ Ω/sq — acceptable for general ESD protection but insufficient for the customer's requirements for high-sensitivity components. The customer required surface resistivity below 10⁶ Ω/sq.
Problem analysis:
| Parameter | Existing Material | Requirement |
|---|---|---|
| Surface Resistivity | 10⁶–10⁹ Ω/sq | <10⁶ Ω/sq |
| Film Thickness | 0.05 mm | 0.05 mm |
| Application | Semiconductor packaging | High-sensitivity component protection |
Root cause: The existing LDPE film used an ionic antistat that provided only moderate static dissipation. For high-sensitivity components, the resistivity was too high to provide adequate protection.
DEYU solution — DGK-LDPE DD4-5:
DEYU recommended switching to DGK-LDPE DD4-5, offering:
Surface resistivity of 10³–10⁵ Ω — 10–1,000× lower than the existing material
Permanent conductivity — humidity-independent performance
Excellent film processability — compatible with existing blown film equipment
High elongation (410%) — good tear resistance for bag applications
Trial structure:
| Parameter | Value |
|---|---|
| Trial Quantity | 500 m² of film (5 extrusion runs) |
| Monthly Production | 10,000 m² |
| Target Surface Resistivity | <10⁶ Ω/sq |
| Film Thickness | 0.05 mm |
Validation Data Table (customer internal trial structure):
| Parameter | Existing Material (Ionic Antistat) | DGK-LDPE DD4-5 | Target | Improvement |
|---|---|---|---|---|
| Surface Resistivity (Ω/sq) | 5×10⁸ | 4×10⁵ | <10⁶ | 1,000× lower |
| Resistivity at 25% RH (Ω/sq) | 8×10¹⁰ | 5×10⁵ | <10⁶ | Stable (humidity-independent) |
| Film Tensile Strength (MPa) | 16 | 18 | >15 | Stable |
| Elongation at Break (%) | 350 | 410 | >300 | Improved |
| Bag Tear Resistance | Good | Good | Good | Stable |
| Visual Quality | Good | Excellent | Good | Improved |
| Extrusion Scrap Rate | 3% | 2% | <3% | Reduced |
Result Interpretation:
Existing material analysis: The ionic antistat LDPE provided marginal ESD protection that varied with humidity. At low humidity, resistivity increased by two orders of magnitude, creating a risk for high-sensitivity components.
DGK-LDPE DD4-5 solution: The carbon black-filled LDPE provided stable, humidity-independent conductivity at 10³–10⁵ Ω — 1,000× lower than the existing material. The film processability was excellent, with improved elongation (410%) and reduced scrap rate. The customer approved the material for full production.
DEYU's contribution: DEYU provided a direct material replacement that delivered the required ultra-low surface resistivity without compromising film properties or processing. The permanent conductivity eliminated humidity-related performance variation.
Next steps: Full production validation across all bag sizes. DEYU can provide ongoing technical support and in-process resistivity monitoring protocols.
Suitable Applications
| Application | Why DGK-LDPE DD4-5 | Key Requirement |
|---|---|---|
| ESD bags for ICs, semiconductors | Ultra-low resistivity + film processability | 10³–10⁵ Ω, humidity-independent |
| Thermoformed ESD trays | Formability + conductivity | 10³–10⁵ Ω, impact resistance |
| FIBC liners (hazardous powders) | Grounding + chemical resistance | 10³–10⁵ Ω, permanent conductivity |
| Anti-static packaging films | Stable ESD protection + flexibility | 10³–10⁵ Ω, high elongation |
| Cleanroom liners, waste sacks | Low particle generation + ESD | 10³–10⁵ Ω, cleanroom compatibility |
| Conductive extrusion profiles | Conductivity + dimensional stability | 10³–10⁵ Ω, extrusion processability |
| Injection-molded ESD containers | Impact resistance + conductivity | 10³–10⁵ Ω, toughness |
| Component carriers (injection molded) | Dimensional stability + ESD | 10³–10⁵ Ω, no break impact |
What Buyers Should Provide for Selection
To receive a precise recommendation for DGK-LDPE DD4-5 applications, buyers should provide:
Resistivity requirement — surface or volume resistivity range (Ω/sq or Ω·cm) with test standard
Application description — film, bag, tray, liner, or other?
Processing method — blown film, cast film, extrusion, thermoforming, injection molding
Part geometry — dimensions, wall thickness, stretch ratio (if thermoforming)
Film/sheet thickness — target thickness range
Mechanical requirements — tear strength, puncture resistance, flexibility
Environmental conditions — temperature range, chemical exposure, humidity
Regulatory requirements — RoHS, REACH, food contact, ATEX
Production volume — annual or monthly quantity
Current issues — what problems need solving with the existing material?
DEYU can support with:
Grade selection based on application requirements
Processing parameter recommendations for consistent conductivity
Small-batch validation (25–100 kg) with full electrical and mechanical testing
Technical support during film extrusion and molding trials
In-process quality monitoring protocols
Conclusion
DGK-LDPE DD4-5 is DEYU's high-conductivity LDPE compound engineered for ESD packaging and industrial applications requiring surface resistivity of 10³–10⁵ Ω. Combining LDPE's inherent flexibility, chemical resistance, and processability with stable, permanent carbon-based conductivity, this grade delivers reliable ESD protection for sensitive electronic components, hazardous materials, and cleanroom applications.
Key takeaways:
Ultra-low resistivity — surface resistivity of 10³–10⁵ Ω — 1,000× lower than standard dissipative LDPE
Permanent, humidity-independent conductivity — carbon black network provides stable ESD protection regardless of environmental conditions — unlike ionic antistats that lose effectiveness at low humidity
Excellent mechanical properties — tensile strength of 18 MPa, elongation at break of 410%, and no-break Izod impact — providing the toughness and ductility required for demanding packaging applications
Processing flexibility — compatible with blown film, cast film, extrusion, thermoforming, and injection molding — one grade for multiple manufacturing methods
Lightweight — density of 0.91 g/cm³ — cost-effective shipping and handling
Application-proven — validated in ESD bags, films, trays, liners, and injection-molded components
Not for every application — for applications requiring lower conductivity (10⁶–10⁹ Ω/sq for general ESD), DEYU offers other grades with different resistivity targets
DGK-LDPE DD4-5 is available for small-batch validation and full production orders. DEYU's technical team can provide application-specific guidance, process optimization support, and full test documentation for qualification and validation.