DGK-PP DD4-5A-JC Flame-Retardant Conductive PP for Electrical Enclosures
DGK-PP DD4-5A-JC is DEYU Plastics' flame-retardant conductive polypropylene compound, engineered for electrical and electronic applications where both static dissipation and fire safety are critical. This material combines surface resistivity in the 10³–10⁵ Ω range with a UL94 V-0 flame-retardant direction, while delivering mechanical toughness that significantly exceeds typical conductive PP compounds.
Buyer and engineer FAQ
Questions engineers often ask about this material route
Where can PP with a flame-retardant plastic requirement be used?
Typical fields include electrical enclosures, battery parts, connectors, appliance housings and industrial covers. For this article, DEYU would first confirm the working environment, wall thickness, expected lifetime and whether DGK-PP DD4-5A-JC flame-retardant conductive PP, DGK-PP WPP-V0 halogen-free flame-retardant PP matches the part geometry or needs formulation adjustment.
What are the main performance indicators for the "flame-retardant plastic" target on PP?
Focus on UL94 rating, GWFI/GWIT when needed, CTI, mechanical retention, color stability and flame-retardant precipitation. Buyers should ask for data on molded parts, not only pellet data, because gate position, filler orientation and thickness can change the final value.
What should engineers watch during injection molding or processing?
For PP, a practical starting window is 190-230°C melt / 30-60°C mold. Avoid excessive residence time, use moderate screw speed and confirm the rating at the actual wall thickness. Final parameters should follow part thickness, gate design and the actual machine.
What details help DEYU recommend DGK-PP DD4-5A-JC flame-retardant conductive PP, DGK-PP WPP-V0 halogen-free flame-retardant PP more accurately?
Send the current resin or grade, drawing or photo, wall thickness, annual quantity, target standard, failure mode and required color. If a reference grade already passed one test but failed in production, include both data sets.
For a precise recommendation, share the part drawing, base resin, target performance, processing method and test standard with DEYU.
Product Overview
DGK-PP DD4-5A-JC is DEYU Plastics' flame-retardant conductive polypropylene compound, engineered for electrical and electronic applications where both static dissipation and fire safety are critical. This material combines surface resistivity in the 10³–10⁵ Ω range with a UL94 V-0 flame-retardant direction, while delivering mechanical toughness that significantly exceeds typical conductive PP compounds.
Related DEYU Plastics material references for this selection topic: DGK-PP DD4-5A-JC flame-retardant conductive PP and DGK-PP WPP-V0 halogen-free flame-retardant PP.
What makes DGK-PP DD4-5A-JC different:
| Feature | DGK-PP DD4-5A-JC | Typical Conductive PP |
|---|---|---|
| Surface Resistivity | 10³–10⁵ Ω | 10³–10⁶ Ω |
| Flammability Rating | UL94 V-0 direction | Often not rated |
| Impact Strength | 35 kJ/m² (Izod) | 10–20 kJ/m² |
| Elongation at Break | 90% | 5–30% |
| Heat Deflection Temperature | 105°C | 90–100°C |
The "JC" designation in DGK-PP DD4-5A-JC indicates a specific formulation optimized for electrical part applications — balancing conductivity with flame retardancy, toughness, and processability.
Key applications:
Electronic equipment housings and enclosures
Electrical component housings requiring static dissipation
ESD-safe enclosures for consumer electronics
Instrument housings and control panels
Small appliance components
Electrical switchgear and control enclosures
Telecommunication equipment housings
Anti-static packaging for electronic components
Technical Foundation — What Makes This Material Perform
1. Conductive Network for Static Dissipation
DGK-PP DD4-5A-JC achieves surface resistivity in the 10³–10⁵ Ω range through a carefully optimized carbon black conductive network. This resistivity level provides:
Effective 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 in-service use
The conductive network is distributed uniformly throughout the PP matrix, ensuring consistent performance across the entire part — not just at the surface.
2. Flame Retardancy — UL94 V-0 Direction
DGK-PP DD4-5A-JC carries a UL94 V-0 flame-retardant direction, indicating that the material is slow-burning and self-extinguishing. This rating is critical for electrical and electronic applications where fire safety is a regulatory requirement.
Conductive/anti-static modified PP typically suffers from reduced toughness when flame retardants are added. DGK-PP DD4-5A-JC addresses this challenge through optimized formulation that preserves mechanical properties while achieving the V-0 direction rating.
3. Exceptional Mechanical Toughness
The "high-impact" designation of the DD4-5 series reflects its superior mechanical properties:
| Property | Value | Significance |
|---|---|---|
| Izod Notched Impact | 35 kJ/m² | Excellent resistance to impact and crack propagation |
| Charpy Notched Impact | 29 kJ/m² | Good toughness for European standard testing |
| Charpy Unnotched Impact | No break | Exceptional ductility; does not fracture under impact |
| Elongation at Break | 90% | Highly ductile; can deform significantly before failure |
These properties make DGK-PP DD4-5A-JC suitable for components that must withstand handling, assembly stresses, and in-service mechanical loads without cracking or fracturing.
4. Thermal Stability
| Property | Value | Significance |
|---|---|---|
| Heat Deflection Temperature | 105°C (A method, 120°C) | Retains dimensional stability at elevated temperatures |
| Processing Temperature | 210–225°C | Wide processing window for consistent molding |
The 105°C HDT ensures that parts maintain their shape and function in warm operating environments — typical of electrical enclosures and electronic housings.
5. PP Matrix Advantages
DGK-PP DD4-5A-JC retains polypropylene's inherent advantages:
| Advantage | Benefit |
|---|---|
| Low density (0.965 g/cm³) | Lightweight components — 80% lighter than metal |
| Chemical resistance | Withstands acids, alkalis, solvents in industrial environments |
| Processability | Supports injection molding and extrusion |
| Cost-effectiveness | Lower cost than engineering plastics for equivalent performance |
6. Processing Flexibility
DGK-PP DD4-5A-JC supports multiple processing methods:
Injection molding — for complex electrical enclosures and housings
Extrusion — for continuous profiles and sheet products
The material's melt flow rate of 7 g/10min provides excellent flow for thin-wall and complex geometry molding.
Product Data
Core Specifications:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Product Model | DGK-PP DD4-5A-JC | — | — |
| Base Resin | Polypropylene (PP) | — | — |
| Appearance | Black | — | — |
| Density | 0.965 g/cm³ | GB/T 1033-1986 | Lightweight — 80% lighter than metal |
| Surface Resistivity | 10³–10⁵ Ω | GB/T 1401-2002 | Stable static dissipation |
| Flammability | V-0 direction | UL-94 GB/T 2408-1996 | Slow-burning, self-extinguishing |
| Processing Methods | Injection molding, extrusion | — | — |
Mechanical Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Tensile Strength | 21.8 MPa | GB/T 1040-2006 | — |
| Yield Strength | 22 MPa | GB/T 1040-2006 | — |
| Bending Strength | 22 MPa | GB/T 9341-2008 | — |
| Flexural Modulus | 1,023 MPa | GB/T 9341-2008 | Moderate stiffness, good flexibility |
| Izod Notched Impact | 35 kJ/m² | GB/T 1843-2000 | Exceptional impact resistance |
| Charpy Notched Impact | 29 kJ/m² | GB/T 1043.1-2008 | Good toughness |
| Charpy Unnotched Impact | No break | GB/T 1043.1-2008 | Outstanding ductility |
| Elongation at Break | 90% | GB/T 1040-2006 | High ductility |
Thermal and Flow Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Melt Flow Rate (MFR) | 7 g/10min | GB/T 3682-2000 | Good flow for complex geometries |
| Heat Deflection Temperature | 105°C | GB/T 1633-2000 | A method — 120°C |
| Drying Temperature | 90°C | — | Before processing |
| Drying Time | 4–5 hours | — | — |
| Processing Temperature | 210–225°C | — | Injection molding |
| Mold Temperature | 80°C | — | Recommended |
Application Deep Dive
1. Electronic Equipment Housings and Enclosures
DGK-PP DD4-5A-JC is ideal for housings and enclosures that require both ESD protection and flame retardancy.
Why this material:
Surface resistivity of 10³–10⁵ Ω dissipates static charges safely
UL94 V-0 direction meets fire safety requirements for electrical equipment
High impact strength (35 kJ/m²) protects against drops and impacts
90% elongation at break provides ductility for snap-fit assemblies
Lightweight (0.965 g/cm³) reduces shipping and handling costs
Typical applications:
Consumer electronics enclosures
Instrument housings
Control panel covers
Electrical junction boxes
2. Small Appliance and Electrical Components
For small appliances and electrical components, DGK-PP DD4-5A-JC offers the right balance of conductivity, flame retardancy, and mechanical properties.
Why this material:
Static dissipation prevents dust accumulation on electrical contacts
V-0 flame-retardant direction provides fire safety for electrical applications
Excellent toughness withstands assembly and in-service stresses
Good thermal stability at 105°C HDT
Typical applications:
Small appliance housings
Power tool components
Electrical switchgear parts
Connector housings
3. ESD-Safe Component Packaging
For protective packaging of electronic components, DGK-PP DD4-5A-JC provides reliable static dissipation.
Why this material:
10³–10⁵ Ω surface resistivity safely dissipates charges
High impact strength protects components during handling
Chemical resistance protects against contaminants
Typical applications:
Anti-static trays and containers
ESD-safe packaging
Component carriers for assembly lines
4. Telecommunication and Data Equipment
Telecommunication equipment requires materials that provide ESD protection, flame retardancy, and long-term reliability.
Why this material:
Stable conductivity ensures consistent ESD performance
V-0 flame-retardant direction meets telecom equipment fire safety standards
Dimensional stability at 105°C supports reliable component mounting
Typical applications:
Telecom equipment housings
Data center components
Network equipment enclosures
Processing Guidelines
Recommended Injection Molding Parameters:
| Parameter | Value | Notes |
|---|---|---|
| Drying Temperature | 90°C | — |
| Drying Time | 4–5 hours | Ensure thorough drying before processing |
| Injection Temperature | 210–225°C | Maintain consistent temperature |
| Mold Temperature | 80°C | Recommended for optimal crystallization and surface quality |
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 melt temperature within 210–225°C range |
| Shear control | Moderate | Optimize screw speed to prevent filler network disruption |
| Mold temperature | Moderate | 80°C recommended for good surface finish and dimensional stability |
Drying Requirement:
DGK-PP DD4-5A-JC 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%
Extrusion Processing:
DGK-PP DD4-5A-JC also supports extrusion for continuous profile and sheet production. Key considerations:
Maintain melt temperature within the recommended range
Optimize screw design for uniform filler dispersion
Ensure consistent cooling for dimensional stability
Customer Validation Scenario
Context: A manufacturer of electronic instrument housings was using a carbon black-filled conductive PP for ESD protection. The material met the resistivity requirement (5×10⁶ Ω/sq) but had two problems: (1) the material lacked flame retardancy, failing to meet UL94 V-0 direction requirements for electrical equipment, and (2) the high carbon black loading (15%) reduced impact strength, causing cracking during assembly of snap-fit features.
Problem analysis:
| Issue | Root Cause | Impact |
|---|---|---|
| No flame retardancy | Standard conductive PP not rated | Failed regulatory requirement |
| Assembly cracking | High carbon black loading reduced toughness | 8% assembly failure rate |
| Surface defects | Carbon black agglomerates | Marginal surface quality |
Trial structure:
| Parameter | Value |
|---|---|
| Trial Quantity | 500 housings (5 molding cycles) |
| Monthly Production | 50,000 housings |
| Target Surface Resistivity | 10³–10⁶ Ω |
| Target Flammability | UL94 V-0 direction |
DEYU solution — DGK-PP DD4-5A-JC:
DEYU recommended switching to DGK-PP DD4-5A-JC, offering:
Surface resistivity of 10³–10⁵ Ω — stable static dissipation
UL94 V-0 flame-retardant direction — meets regulatory requirements
Izod notched impact of 35 kJ/m² — exceptional toughness
Elongation at break of 90% — ductility for snap-fit assemblies
Excellent surface quality — smooth, black finish
Validation Data Table (customer internal trial structure):
| Parameter | Existing Material (CB-PP) | DGK-PP DD4-5A-JC | Target | Improvement |
|---|---|---|---|---|
| Surface Resistivity (Ω) | 5×10⁶ | 10³–10⁵ | 10³–10⁶ | Stable |
| Flammability Rating | Not rated | V-0 direction | V-0 direction | Achieved |
| Izod Notched Impact (kJ/m²) | 12 | 35 | >25 | +192% |
| Elongation at Break (%) | 15 | 90 | >50 | +500% |
| Assembly Failure Rate | 8% | 0.5% | <2% | -94% |
| Surface Quality | Marginal | Excellent | Good | Significantly improved |
| Density (g/cm³) | 0.98–1.02 | 0.965 | <1.0 | Lighter |
Result Interpretation:
DGK-PP DD4-5A-JC delivered the required conductivity while meeting the flame retardancy requirement and dramatically improving mechanical toughness. The impact strength of 35 kJ/m² — nearly triple the existing material — eliminated assembly cracking. The 90% elongation at break provided the ductility needed for snap-fit features. The V-0 direction rating met regulatory requirements for electrical equipment.
DEYU Plastics' contribution: DEYU demonstrated that conductivity, flame retardancy, and toughness can coexist in a single PP formulation — addressing the common industry challenge where adding flame retardants to conductive PP typically reduces toughness.
Next steps: Full production validation. DEYU can provide ongoing technical support and in-process quality monitoring protocols.
Suitable Applications
| Application | Why DGK-PP DD4-5A-JC | Key Requirement |
|---|---|---|
| Electronic equipment housings | Conductivity + flame retardancy + toughness | 10³–10⁵ Ω, V-0 direction, 35 kJ/m² |
| Electrical enclosure components | Static dissipation + fire safety | 10³–10⁵ Ω, V-0 direction |
| Small appliance housings | Lightweight + ESD + flame retardancy | 10³–10⁵ Ω, V-0 direction |
| Instrument housings | Surface quality + dimensional stability | 10³–10⁵ Ω, 105°C HDT |
| Anti-static packaging | ESD protection + impact resistance | 10³–10⁵ Ω, high toughness |
| Telecommunication equipment housings | ESD + flame retardancy + reliability | 10³–10⁵ Ω, V-0 direction |
| Control panel enclosures | Static dissipation + fire safety | 10³–10⁵ Ω, V-0 direction |
| Snap-fit electrical components | Ductility + conductivity | 90% elongation, 10³–10⁵ Ω |
What Buyers Should Provide for Selection
To receive a precise recommendation for DGK-PP DD4-5A-JC applications, buyers should provide:
Target resistivity — surface or volume resistivity range (Ω or Ω·cm) with test standard
Flammability requirement — UL94 rating required (V-0 direction, V-2, V-0, etc.)
Application description — electronic housing, electrical enclosure, packaging, or other?
Part drawing — geometry, wall thickness, gate location, snap-fit features
Processing method — injection molding, extrusion
Mechanical requirements — impact strength, tensile strength, flexural modulus targets
Thermal requirements — continuous use temperature, peak temperature
Environmental conditions — chemical exposure, humidity, temperature range
Production volume — annual or monthly quantity
Cost constraints — target material cost per kilogram or per part
DEYU can support with:
Material selection for specific conductivity + flame retardancy requirements
Processing parameter optimization for consistent performance
Small-batch validation (25–100 kg) with full electrical, mechanical, and flame retardancy testing
Technical support during molding trials
In-process quality monitoring protocols
Conclusion
DGK-PP DD4-5A-JC represents a significant advancement in conductive polypropylene technology — combining reliable static dissipation (10³–10⁵ Ω), flame retardancy (UL94 V-0 direction), and exceptional mechanical toughness (35 kJ/m² impact, 90% elongation) in a single, cost-effective formulation.
Key takeaways:
Balanced performance — conductivity, flame retardancy, and toughness coexist in one material, addressing the common challenge where adding flame retardants to conductive PP typically compromises toughness
Ultra-high toughness — Izod notched impact of 35 kJ/m² and elongation at break of 90% — significantly higher than typical conductive PP compounds. Unnotched Charpy impact shows "no break," demonstrating exceptional ductility
Reliable conductivity — surface resistivity of 10³–10⁵ Ω provides effective static dissipation for ESD protection and dust prevention
Flame retardancy — UL94 V-0 direction meets fire safety requirements for electrical and electronic equipment
Thermal stability — HDT of 105°C ensures dimensional stability in warm operating environments
Processability — MFR of 7 g/10min supports injection molding of thin-wall and complex geometries; also compatible with extrusion
Lightweight — density of 0.965 g/cm³ — 80% lighter than metal alternatives
Application-proven — validated in electronic housings, electrical enclosures, small appliances, and ESD packaging applications
DGK-PP DD4-5A-JC is available for small-batch validation and full production orders. DEYU Plastics' technical team can provide application-specific guidance, process optimization support, and full test documentation for qualification and validation.