Rheology Testing & Consultancy Services
5C, Leaton Industrial Estate, Bomere Heath. Shrewsbury. Shropshire.
SY4 3AP. UK
Tel: +44 (0)1939 291677 ...Email: email@example.com
Rheology Newsletter - 26 September 2011
Rheology becomes UK demonstration facility for Molecular Control
Systems Ltd with the relaunch of the Porpoise brand name.
Rheology has taken delivery of a technologically advanced
twin-bore capillary rheometer from Molecular Control Systems
Ltd as part of a new joint venture which sees Gammadot
become the UK demonstration site for the quality range
of rheometers produced by MCS.
collaboration coincides with the launch of new PRIMES
technology by MCS. PRIMES - Porpoise
- Rheometers - Melt
- Index - Expert –
System allows users of rheology, whether
it be On-line, At-line or in the Laboratory, to produce
measurements of Shear viscosity, Extensional viscosity
and Melt Index on the same platform. Direct access to
Shear Viscosity and Melt Flow information enables the
checking of product conformance to the recognized international
quality standards for polymers.
Principal, Mark Edwards said “The delivery of
the flagship P9 twin bore capillary rheometer completes
our already extensive rheometry suite, enabling us to
provide a complete spectrum of rheological measurements
– from simple Brookfield & MFI tests through
to oscillatory, shear & extensional viscosity measurements,
Gammadot has a rheometer capable of providing accurate
data to support our clients needs”.
George, Managing Director of Molecular Control Systems
Ltd will be joining Mark Edwards on the Gammadot Rheology
stand at this year’s
Interplas exhibition at the NEC,
Birmingham (Hall 4, L14), where both company heads will
be on hand to discuss with visitors the new test services
& equipment available through this recently formed
For more information on The relaunched brand of Porpoise
rheometers, contact Molecular Control Systems Ltd through
their website HERE.
Visit Us in Hall 4, Stand L14 This Week!
Tomorrow sees the doors open on this year's Interplas exhibition
at the NEC, birmingham and we'd love to see you there! As
mentioned above, Mark Edwards Principal of Gammadot Rheology
will be joined by Alan George, Managing Director of MCS
Ltd, who'll be on hand for the duration of the show to discuss
the exciting new collaboration between the two companies.
As is traditional, Gammadot will giving a 10% discount on
all testing orders taken during the exhibition, so come
drop by the stand and discuss your testing needs, find out
more information about the quality range of rheometers available
from MCS Ltd, or simply pick up a free, soon to be a collectors
item Gammadot enameled pin!
stand is the opposite side of the hall to 2008 - see
Rayran Melt Flow Rate instrument is now online and performing
contract work. Measurements are made to ASTM standard D1238
method A (ISO 1133) and a full range of load weights are available
for use in measurements.
Diffusivity Apparatus to be Revamped
The next few months will see the recently acquired
Thermal Diffusivity apparatus completely stripped, refurbished
& calibrated prior to becoming an intrinsic part of
Gammadot's flow simulation support suite. The apparatus
provides thermal diffusivity data across a wide temperature
range (23°C to 350°C) enabling the characterisation
of polymer heat transfer dynamics in both the solid &
melt phase. The data will also be used in conjunction
with measured PvT data & specific heat capacity to
calculate Thermal Conductivity for applications such Autodesk
Moldflow, Sigmasoft 3D & Moldex 3D.
The instrument was originally developed by Rapra Technology
Ltd and consists of a sample holder containing two disc
shaped samples, 48mm in diameter and 4mm thick. The samples
are placed together with a thermocouple sandwiched between
them for monitoring the centre temperature. The samples
are then located within the holder which is composed of
a central ring, two 'O' ring seals and two end plates,
each one of which contains a heater element. The sample
is spring loaded to allow for thermal expansion of the
samples.Two other thermocouples are sealed into grooves
in the end plates: the beads are flush with the surfaces
and thus in direct contact with the surfaces of the sample
sandwich. The thermocouples are arranged so that the three
junctions lie as closely as possible to the axis of symmetry.
During the course of a measurement the samples are allowed
to expand against springs. The increase in thickness is
measured using LVDT transducers and included in the calculations.
In use the sample holder is supported within a cylindrical
stainless steel radiation shield. Power is supplied to
the heaters and the temperature rises smoothly to a pre-selected
maximum value. The outputs from the three thermocouples
& the two LVDTs are datalogged during the test run,
and once the test terminates diffusivity is automatically
calculated by the software as a function of temperature.
Service Flyer Download
further information about Gammadot Rheology's testing & consultancy
services, or if you have a specific problem / testing requirement
which you would like Gammadot to provide a solution to, please
contact us using the details at the top of the page or via the
enquiry form HERE.
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