Jiubin JB-3500F Carbon Black Content Analyzer for Polymers and Rubber
| Brand | Jiubin |
|---|---|
| Origin | Shanghai, China |
| Model | JB-3500F |
| Application | Quantitative carbon black and ash content determination in thermoplastics, elastomers, and cable materials |
| Operating Atmosphere | Nitrogen-purged inert environment with controlled oxidative calcination |
| Temperature Control | Programmable high-precision furnace (up to 950 °C) |
| Measurement Principle | Gravimetric analysis after pyrolytic decomposition and selective oxidation |
| Compliance Basis | ASTM D1606, ISO 6964, GB/T 3512, IEC 60811-4-1 |
Overview
The Jiubin JB-3500F Carbon Black Content Analyzer is a dedicated gravimetric instrument engineered for the quantitative determination of carbon black and residual ash content in polymeric and elastomeric materials. It operates on the principle of controlled pyrolysis followed by selective oxidative combustion under a regulated nitrogen–oxygen atmosphere. In accordance with standardized thermal decomposition protocols, a pre-weighed sample is introduced into a high-stability muffle furnace, where it undergoes stepwise thermal treatment: first, pyrolysis under inert nitrogen to volatilize organic polymer matrix components; second, controlled introduction of oxygen to combust residual carbon black particles; and finally, high-temperature ashing to quantify inorganic filler residues. The mass difference before and after each stage—recorded via integrated analytical balance interface—is used to calculate carbon black loading (wt%) and total ash content independently. This dual-parameter capability supports material verification, quality control, and regulatory conformance across cable manufacturing, rubber compounding, and polymer recycling workflows.
Key Features
- Programmable dual-stage thermal protocol: inert pyrolysis (N₂) followed by oxygen-assisted oxidation (O₂), with independent gas flow regulation and pressure monitoring
- High-accuracy furnace system with ±1 °C temperature uniformity across 100–950 °C operating range and ramp rate control from 1 to 20 °C/min
- Integrated microbalance interface supporting real-time mass logging at 0.1 mg resolution, synchronized with thermal events
- Automated sequence execution with user-defined hold times, temperature setpoints, and gas switching logic
- Robust stainless-steel reaction chamber with ceramic insulation and corrosion-resistant internal lining for long-term exposure to acidic ash residues
- Compliance-ready operation log: timestamped temperature profiles, gas flow records, mass readings, and operator ID tagging
Sample Compatibility & Compliance
The JB-3500F accommodates solid specimens up to 5 g in mass and dimensions compatible with standard crucibles (e.g., alumina or platinum, 30 mL capacity). It is validated for use with polyethylene (PE), polypropylene (PP), ethylene-propylene-diene monomer (EPDM), styrene-butadiene rubber (SBR), and halogen-free flame-retardant (HFFR) cable compounds. Methodologically aligned with ASTM D1606 (Standard Test Method for Carbon Black Content of Polyolefins), ISO 6964 (Rubber—Determination of carbon black content), and IEC 60811-4-1 (Electric cables—Tests on insulating and sheathing materials—Part 4-1: Methods for polymeric compounds—Measurement of carbon black content), the system supports audit-ready documentation required under GLP and ISO/IEC 17025 frameworks. Optional calibration verification using NIST-traceable carbon black reference standards (e.g., SRM 2464) is supported.
Software & Data Management
The analyzer operates via embedded firmware with USB-connected PC software for method development, data visualization, and report generation. All measurement sessions are stored with full metadata—including furnace temperature history, gas flow rates, mass drift curves, and final calculation outputs—in CSV and PDF formats. Audit trail functionality complies with FDA 21 CFR Part 11 requirements through electronic signature support, user role-based access control, and immutable session logs. Raw data export enables integration with LIMS platforms via standardized API endpoints. Calibration certificates, maintenance logs, and instrument qualification records (IQ/OQ) are managed within the same secure repository.
Applications
- Quality assurance of carbon black loading in automotive rubber compounds (tires, bushings, seals)
- Verification of pigment dispersion homogeneity in masterbatch production
- Regulatory testing of low-smoke zero-halogen (LSZH) cable jacketing per IEC 60754 and UL 1685
- Recycled polymer feedstock screening for carbon black contamination or degradation markers
- R&D studies correlating carbon black content with mechanical performance (tensile strength, abrasion resistance, UV stability)
- Third-party certification testing for RoHS, REACH, and WEEE compliance documentation
FAQ
What standards does the JB-3500F directly support?
ASTM D1606, ISO 6964, GB/T 3512, IEC 60811-4-1, and UL 1581 Annex F.
Can the instrument measure both carbon black and ash content in a single run?
Yes—the sequential pyrolysis–oxidation–ashing protocol delivers both values from one sample without manual rehandling.
Is platinum crucible compatibility available?
Yes; the chamber accommodates standard 30 mL platinum and high-purity alumina crucibles with optional temperature-resistant crucible holders.
How is system accuracy verified?
Through routine calibration using certified reference materials (CRM) and periodic verification with NIST-traceable standards; full calibration certificate included with delivery.
Does the software support multi-user environments with audit trails?
Yes—role-based login, electronic signatures, and tamper-evident session logs meet 21 CFR Part 11 and ISO/IEC 17025 traceability requirements.
