PSL Rheotek Polymer Testing Determination of the solution viscosity of polymers in dilute solution (DSV) Solvent based viscosity measurement service The PSL Rheotek Polymer Testing Laboratory is equipped with a number of Rheotek Polymer Viscometers for testing the solution viscosity of a wide range of polymers.
The PSL Polymer Testing Laboratory can provide analysis of the following types of polymers: •
PET – ASTM D4603 – ISO 1628 – ASTM D2857 • PA – ASTM D789 – ISO 307 • PVC – ASTM D1243 – ISO 1628 • PP/PE (including UHMW) – ASTM D4020 - ASTM D1601 – ISO 1628 • Pulp, cellulose – ASTM D1795 – Tappi T230 – ISO 5351 Any other type of polymer that can be dissolved in organic or inorganic liquids
For PET, PA and PVC testing, the laboratory can provide a quick turnaround of sample testing using the RPV Auto system.
Samples can include a wide range of different crystalline grades (including high crystalline), as well as amorphous samples and post-consumer samples. The RPV is also suitable for testing samples with a high level of particulates, fillers or ash.
PSL Polymer Testing Laboratory – DSV testing V1.5
Testing will be carried out in full compliance with ASTM and ISO standards or as specified by the customer. Samples will be prepared on a weight-to-weight basis using the integrated sample preparation system.
Test Report For each sample preparation, the test report will include the following information: ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢
Sample ID and description Details of the viscometer configuration used for testing Concentration (including exact sample and solvent weight) Dissolution conditions (temperature and time) Average solvent flow time and interim flow times with precision obtained Average solution flow time and interim flow times with precision obtained Glass capillary viscometer (type, size, serial number constant) Testing temperature (including verification of temperature by certified reference thermometer*) All calculated results, including: Relative viscosity, Specific viscosity, Reduced viscosity Viscometer Number Inherent viscosity to 3 significant places Intrinsic viscosity to 3 significant places K-value Limiting Viscosity Number Custom results as specified
Results consultation After the submission of results, PSL Rheotek polymer experts will be available to answer questions. Please request assistance using the follow up email provided in the test report.
How to submit your samples: Please send your samples to: PSL Rheotek USA – 12692 Sandy Drive, Suite 115, Granger, IN 46530, USA PSL Polymer Testing Laboratory – Russell House, Burnham Business Park, Burnham-on-Crouch, Essex. CM0 8TE. UK •
Minimum 10g of sample (or ideally 50g as a larger amount will be more representative of the variability)
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Completed Polymer testing questionnaire, detailing:
Sample ID, % of inert insoluble material if greater than 0.5%, moisture content if greater than 0.5% (samples will be pre-dried subject to sample preparation), is grinding required? Approximate dissolution temperature and time as well as any custom requirements. PLEASE SEND YOUR ENQUIRY TO: sales@psl-rheotek.com
PSL Polymer Testing Laboratory – DSV testing V1.5
The PSL Polymer Testing laboratory will report results by pdf via email. Example of results (all measured data and calculated results are available)
Generic Fee codes: (Detailed part code will be confirmed at time of quotation is based upon method and solvent) T-DSV-PET - dilute solution viscosity testing - in accordance with ASTM D4603 or ISO1628 at a single point of concentration (fee charged per sample preparation – at least two preparations per sample is recommended). Reported results: Inherent Viscosity, Intrinsic viscosity. T-DSV-PA - dilute solution viscosity testing - in accordance with ISO307 at a single point of concentration (fee charged per sample preparation – at least two preparations per sample is recommended). Reported results: Viscosity Number T-DSV-PVC - dilute solution viscosity testing - in accordance with ASTM D1243 or ISO1628 Part 2 at a single point of concentration (fee charged per sample preparation – at least two preparations per sample is recommended). Reported results: Reduced Viscosity, Inherent Viscosity and K-value T-DSV-Pulp - dilute solution viscosity testing - in accordance with ISO5351 at a single point of concentration (fee charged per sample preparation – at least two preparations per sample is recommended). Reported results: Limiting Viscosity Number T-DSV-Tappi - dilute solution viscosity testing - in accordance with Tappi T230 a single point of concentration (fee charged per sample preparation – at least two preparations per sample is recommended). Reported results: Dynamic viscosity T-DSV-CM - dilute solution viscosity testing – compare measurements in accordance with ASTM D2857 at a multiple point of concentrations (fee charged per sample preparation – at least four concentrations/two preparations per sample is recommended). Reported results: Inherent Viscosity, Reduced Viscosity and the extrapolation of Intrinsic Viscosity at zero concentration T-DSV-GR - optional Grinding fee - using centrifugal mill - includes cost of consumables including liquid nitrogen.
PSL Polymer Testing Laboratory – DSV testing V1.5