TianYuan TY-5003 Melt Flow Indexer (Volumetric Method) for Melt-Blown Polymer Feedstock

Overview

The TianYuan TY-5003 Melt Flow Indexer is a precision-engineered volumetric melt flow rate (MVR) instrument specifically optimized for quality control and R&D of melt-blown polymer feedstocks—particularly polypropylene (PP) grades used in nonwoven filtration media manufacturing. It operates on the principle of gravimetric and volumetric extrusion under standardized thermal and mechanical conditions, measuring the volume or mass of thermoplastic polymer melt extruded through a calibrated die under defined load and temperature over a fixed time interval. Designed in strict compliance with ISO 1133-1:2011 (Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR)), ASTM D1238-22 (Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer), and GB/T 3682.1–2018 (equivalent to ISO 1133-1), the TY-5003 delivers high reproducibility for both MFR (g/10 min) and MVR (cm³/10 min) determinations across a broad thermal range (ambient to 400 °C). Its robust architecture integrates a high-stability PID temperature controller with fuzzy logic compensation, ensuring rapid thermal equilibration (<4 min recovery post-filling) and minimal overshoot—critical for consistent rheological evaluation of shear-sensitive, high-MI PP resins used in medical-grade mask production.

Key Features

• Optimized thermal system with ±0.5 °C temperature uniformity across the barrel zone, verified per ISO 1133 Annex B calibration protocol
• Volumetric measurement mode (MVR) enabled via precision-calibrated die geometry: 2.095 ± 0.005 mm diameter × 8.000 ± 0.025 mm length
• Barrel bore: 9.550 ± 0.025 mm; piston head: 9.475 ± 0.015 mm—designed to minimize wall slip and ensure laminar flow conformity
• Dual cut-mode operation: manual trigger or programmable automatic timing (user-selectable 10–120 s intervals)
• Integrated thermal mass compensation algorithm to correct for heat loss during piston descent and die entry
• High-resolution digital display (0.1 °C resolution) with real-time temperature logging and load status indicator
• Full set of eight certified test loads (0.325 kg to 21.6 kg), traceable to national metrology standards
• Onboard micro-printer for immediate hardcopy output of test parameters, timestamp, and calculated MFR/MVR values

Sample Compatibility & Compliance

The TY-5003 supports routine testing of all major thermoplastics relevant to melt-blown fiber production—including isotactic PP (MI 100–2000 g/10 min), functionalized PE copolymers, and specialty fluoropolymers. Its design accommodates both low-viscosity feedstocks (e.g., peroxide-degraded PP) and higher-melting engineering resins such as POM, PC, and PEEK—within its 400 °C upper limit. All mechanical dimensions (die, barrel, piston) conform to ISO 1133 geometric tolerances, enabling direct comparability with interlaboratory reference data. The instrument meets essential requirements for GLP-compliant environments: audit-ready print logs, load verification records, and temperature calibration traceability. While not FDA 21 CFR Part 11–certified out-of-the-box, its data output format is compatible with validated LIMS integration for regulated QC workflows in medical device raw material suppliers.

Software & Data Management

The TY-5003 operates as a standalone benchtop unit with embedded firmware—no external PC required. All test configurations (temperature setpoint, load selection, cut interval, dwell time) are stored in non-volatile memory. Printed reports include: test date/time, material ID (manually entered), test standard referenced (ISO/ASTM/GB), applied load (kg), barrel temperature (°C), die geometry code, number of cuts, average MFR/MVR, and operator ID field. For laboratories requiring digital archiving, optional RS-232 serial output enables ASCII-formatted data export to spreadsheet or custom QA databases. Firmware supports user-defined calibration offset entry per load/temperature point, aligning with ISO 1133 Clause 7.2 on periodic verification.

Applications

• Batch release testing of melt-blown PP masterbatches and stabilized feedstocks for N95 respirator media
• R&D screening of peroxide concentration effects on MI elevation in controlled degradation studies
• QC monitoring of thermal stability during extrusion-grade resin storage (oxidative MI drift assessment)
• Validation of screw design and processing window for high-output melt-blown lines
• Educational use in polymer science labs for hands-on instruction in melt rheology fundamentals
• Third-party certification testing per ISO/IEC 17025 accredited protocols for supplier qualification

FAQ

What standards does the TY-5003 fully comply with?
It meets the dimensional, thermal, and procedural requirements of ISO 1133-1:2011, ASTM D1238-22, and GB/T 3682.1–2018.
Can it measure both MFR and MVR simultaneously?
No—it performs sequential volumetric (MVR) or gravimetric (MFR) tests using the same hardware; MVR requires no balance, while MFR requires an external analytical balance (not included).
Is the die geometry certified and replaceable?
Yes—the standard die is supplied with a calibration certificate; replacement dies (Φ2.095 mm) are available with individual metrology reports.
How is temperature uniformity verified?
Per ISO 1133 Annex B, users perform a three-point axial temperature profile check using a calibrated immersion thermometer; the TY-5003’s design ensures ≤0.5 °C deviation across the critical 30-mm zone adjacent to the die.
Does it support automated data transfer to LIMS?
Via optional RS-232 interface and ASCII output—custom parsing scripts or middleware may be required for direct LIMS ingestion.