The PSL Rheotek RPV-1 (2) AutoPP – two position PP/PE viscometer is specially adapted for measuring polyethylenes (PE) and polypropylenes (PP) at 135 °C. Suitable for low and medium density samples.
Auto systems fully integrate sample preparation, sample dissolution & sample loading, as well as flow time measurement, cleaning and reporting of results. One or two heating and stirring zones can be configured to control the dissolution of batches of samples. Both heating temperatures and stirring times are computer controlled and samples are automatically loaded into the viscometer. Typical sample throughput is 6 to 8 samples per hour with two measuring positions.
The PSL Rheotek RPV-1 (2) AutoPP provides a reliable and precise system for measuring dilute solutions of polymers.
Auto systems not only combine the control of the sample preparation process but also the sample dissolution.
The RPV Auto system controls the heating and stirring times of polymer solutions, as well as cooling prior to
measurement.
Sample dissolution control is critical in order to ensure that polymer solutions, such as PP/PE, do not degrade prior
to measuring their intrinsic viscosity.
The RPV-1 Auto automates the manual steps set out in standard methods, minimizing the variability of results.
Flow times are measured automatically using ASTM Ubbelohde viscometer tubes supplied with ISO 17025
certificates of calibration.
Cleaning is carried out in-situ utilizing solvents and a safe vacuum system.
The comprehensive RPV-1 Auto software program records all measurement data as well as calculating a wide
range of results.
Standard Practice:
ASTM D2857 Determination of the dilute solution viscosity of polymers.
Test Methods General:
ISO 1628 Part 1 Determination of the reduced viscosity, intrinsic viscosity and K-value of polymers in dilute solution using glass capillary viscometers
Test Methods Polyethylenes (PE) and Polypropylenes (PP):
ASTM D4020 Standard specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials
ASTM D1601 Standard Test Method for Dilute Solution Viscosity of Ethylene Polymers
ISO 1628 Part 3 Determination of the Viscosity of Polymers in Dilute Solution using Capillary Viscometers – Polyethylenes and Polypropylenes
Other Test Methods:
ASTM D445 Standard Test Method for determination of kinematic viscosity
ISO 3104 Petroleum products – determination of kinematic viscosity
IP 71 Section 1 Kinematic Viscosity
Typical RPV Applications and configurations
Test Method Solvent Concentration Temperature RPV-1 Standard measuring positions
ASTM D1601 Decahydro-naphthalene 0,022% 135 1 or 2
ASTM D4020 Decahydro-naphthalene 0,022% 135 1 or 2
ISO 1628 Part 3 Decahydro-naphthalene 0.5%, 0.1%, 0.02% 135 1 or 2
Tube type: AKV Ubbelohde
Part No. Ordering Information
RPV-1 (2) AutoPP
PSL Rheotek AutoPP Polymer Viscometer – two positions complete with integrated sample preparation, sample heating and stirring block and Smart Sampler.
RPV-1 (2) AutoPP/D PSL Rheotek AutoPP Polymer Viscometer – two positions complete with integrated sample preparation, dual zones sample heating and stirring blocks with shared cooling system and Smart Sampler.
Part No. Options
SP-1 Sample preparation system. Suitable for integration with the RPV-1 HT. Supplied complete with 4 d.p. Precision balance, syringe pump and voice prompting software. Suitable low low and medium density PP/PE samples.
SP-1/HD Sample preparation system. Suitable for integration with the RPV-1 HT. Supplied complete with 5 d.p. Precision balance, syringe pump and voice prompting software. Suitable low low, medium and high density PP/PE samples.
SD-1 Polymer reaction block with 8 positions. Suitable for heating & stirring PP/PE low and medium density samples .
SIL-OIL Silicone bath oil for use at 135°C
HTFK PP/PE (high temperature) viscometer filling kit – includes glass funnels (5), set of tongs and heat resistant gloves
RPV141 Preparation bottles for PP/PE samples (10 pcs))
RPV131 Cover slip holder
RPV131/A Cover slips for PP/PE samples (200 pcs)
STATPACK RPV StatsPack extraction of results to PC or LIMS
RPVS010 RPV start up kit including glass vials (144 pcs), plastic caps(500 pcs) and magnetic stir bars (10 pcs)
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