DAZHAN DZ3500S Carbon Black Content Analyzer
| Brand | DAZHAN |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DZ3500S |
| Pricing | Available Upon Request |
Overview
The DAZHAN DZ3500S Carbon Black Content Analyzer is a thermogravimetric instrument engineered for precise quantification of carbon black and ash content in polymer-based materials. It operates on the principle of controlled pyrolysis under inert (nitrogen) and oxidative (air/oxygen) atmospheres, following standardized thermal decomposition protocols aligned with ASTM D1606, ISO 6964, and GB/T 3512—methods widely adopted in rubber and plastic quality control laboratories. The system utilizes high-precision mass loss monitoring across programmable temperature ramps to distinguish volatile organic matrix, combustible carbon black residue, and non-combustible mineral ash. Its dual-atmosphere gas control, integrated quartz tube furnace, and real-time gravimetric tracking enable reproducible, traceable results essential for material certification, formulation validation, and regulatory compliance in cable insulation, automotive elastomers, and pipe-grade polyolefins.
Key Features
- Four-position sample carousel enabling parallel analysis of up to four specimens per run—increasing throughput by 300% versus single-sample systems.
- Open-lid furnace architecture with rapid forced-air cooling (≤20 min from 900 °C to ambient), minimizing turnaround time between cycles without compromising thermal stability.
- 7-inch capacitive touchscreen interface with intuitive workflow navigation, real-time temperature/mass trend visualization, and multi-stage programmable heating profiles.
- High-temperature quartz tube (Φ44 × 600 ± 5 mm) housed within a Φ45 × 360 ± 5 mm alloy furnace chamber, heated by high-stability Fe-Cr-Al alloy wire over a 300 mm active zone.
- Intelligent temperature control with ±0.1 °C sensor resolution and programmable ramp/soak segments compliant with GLP documentation requirements.
- Dual independent gas lines with automated solenoid switching between N₂ (pyrolysis) and air/O₂ (oxidation), supporting full ASTM D1606-compliant test sequences.
- Integrated safety subsystem including over-temperature cut-off, door-open interlock, and real-time thermal anomaly alerting.
Sample Compatibility & Compliance
The DZ3500S is validated for use with thermoplastic and thermoset matrices containing carbon black loadings typical of industrial compounds: polyethylene (PE), polypropylene (PP), polybutylene (PB), EPDM and SBR rubbers, and cross-linked polyolefin cable jacketing and insulation. Sample mass range: 0.5–2.0 g (recommended); minimum detectable carbon black concentration: 0.5 wt%. The analyzer meets mechanical and electrical safety requirements per IEC 61010-1. Optional exhaust filtration (activated carbon + particulate trap) ensures laboratory air quality compliance during high-volume testing. Data integrity supports 21 CFR Part 11 readiness when paired with audit-trail-enabled software extensions.
Software & Data Management
Onboard firmware includes embedded calculation algorithms that automatically derive carbon black content (wt%) and ash content (wt%) from sequential mass readings at defined isothermal holds (e.g., 550 °C under N₂; 750 °C under air). Results are displayed in tabular format with timestamp, operator ID, sample ID, and raw mass values. USB export enables CSV transfer to LIMS or Excel. Optional PC software provides enhanced reporting (PDF/Excel), statistical process control (SPC) charts, method library management, and electronic signature capability for GMP environments. All data logs include full metadata: temperature profile, gas flow status, mass drift, and system diagnostics.
Applications
- Quality assurance of carbon black-filled PE/PP pipes used in municipal water and gas distribution networks.
- Verification of filler dispersion consistency in halogen-free flame-retardant (HFFR) cable compounds.
- Batch release testing for automotive rubber components requiring tight carbon black tolerance (±0.3 wt%).
- Failure analysis of degraded insulation layers where carbon black migration or oxidation state impacts dielectric performance.
- R&D support for nanocomposite development involving hybrid fillers (carbon black + silica or graphene).
FAQ
What standards does the DZ3500S comply with for carbon black determination?
It supports ASTM D1606 (Standard Test Method for Carbon Black in Rubber Compounds), ISO 6964 (Rubber—Determination of Carbon Black Content), and Chinese national standard GB/T 3512.
Can the instrument be used for ash-only analysis without carbon black quantification?
Yes—the software allows user-defined test protocols; a single oxidative step at 750 °C yields total ash content per ISO 247.
Is calibration traceable to NIST or other national metrology institutes?
The built-in high-resolution balance is factory-calibrated using certified weights; optional annual recalibration services include NIST-traceable certificate documentation.
What maintenance is required for long-term accuracy?
Quarterly quartz tube inspection, biannual thermocouple verification, and routine cleaning of gas inlet filters and exhaust pathways ensure sustained measurement fidelity.
Does the system support remote monitoring or integration with lab automation systems?
Via optional RS-232 or Ethernet module, it enables SCADA-level integration and remote status querying—compatible with common laboratory middleware platforms.
