Product Details
The Benz
Mooney Viscometer (MV 2100) measures and records the viscosity of
natural and synthetic rubber and plastic elastomers, including
rubber in the raw or compounded state. It is also used to
determine the curing characteristics of compounded
rubber.
More than a simple viscometer, the Benz MV 2100 is a computer
data acquisition system, with digital P.I.D. temperature
controls, realtime display of torque vs. time, data storage for
statistical evaluation, and data manipulation.
General Description
It runs on Windows 95, NT, 98, 2000, ME and XP.
The MV 2100 accepts a sample of the elastomer, usually 11 grams,
in a melt chamber and heats it to 212 ºF (100 ºC). Pre-heating is
timed to maintain consistency of initial viscosity readings. The
viscometer's serrated shearing disk, rotating at 2 rpm and
developing torque on the sample up to 200 inch pounds (200dN M),
causing the sample to flow. The necessary amount of torque is
measured and is read on an x-y graph on the personal computer
monitor.
Measurements are recorded on the PC, using Benz' proprietary
Benzwin 2000 software, which is included with the MV
2100.
When the sample's viscosity falls to a level reading, the
engineer or quality control operator knows both the torque and
the time required to reach that minimum viscosity. Among other
things, the level indicates if the compound has been properly
mixed, with ingredients in their proper proportions.
The Benz MV 2100 also performs scorch tests in which, at 320 ºF
(160 ºC), the liquid sample cures. The MV 2100 measures and
records the amount of time a sample will last in a mold before it
is scorched and its elastomeric properties are lost.
The Benz MV 2100 is also used to record stress relaxation,
measuring the amount of stress energy (resilience) remains in a
sample after the spinning rotor is stopped. Plasticity is graphed
and recorded in inch pounds (dNM).
The Benz MV 2100 meets ASTM D164 and other national and
international standards.
Like several other Benz elastomeric testing instruments such as
the Benz Brittle Point Tester and the Benz Melt Flow Tester, The
Benz Mooney Viscometer is commonly used by companies
manufacturing or testing chemical compounds, technical service
centers, original equipment manufacturers and others concerned
with product consistency, safety and durability.
Constructed of aluminum and high strength steel, it requires 20 x
22 inches (50 x 55 cm) of counter space and runs on 110 V or 220
V. An 80 psi (4 bar) air pressure system holds the sample chamber
closed during the tests.