Integrated data analysis with pdf reports, histograms and high. Rubberviscosity, stress relaxation, and prevulcanization characteristics mooney viscometer 1 this standard is issued under the. The increased use of the mooney viscometer in america for checking the plasticity of different batches of synthetic rubber has led to a wider appreciation of the care which is necessary for accurate operation of this apparatus. Smv301smv301rt mooney viscometers feature a color lcd touch panel display that allows the instrument. Mooney viscosity is defined as the shearing torque resisting rotation of a cylindrical metal disk or rotor embedded in rubber within a cylindrical cavity. Mooney viscometer controlled by personal computer for the performance of viscosity, scorch and stress relaxation tests. A mooney viscometer is also used to measure the viscosity of the compounds important for dictating injectionmoulding behaviour. Historical version s view previous versions of standard. Mooney viscosity curve, mooney s1646 curve, temperature curve of the upper and lower mold 4. Providing frequency conversion type mooney viscometer to test the viscosity of particular rubber.
If the document is revised or amended, you will be notified by email. Up to 10 values can be specified for mooney viscosity detection time, rotation. Secure pdf files include digital rights management drm software. This option stores specimen details along with graphs and result analysis. Besides only static testing, montech variable mooney viscometers such as the vmv 3000 offer full. What links here related changes upload file special pages permanent link page. Mooney viscometers are the backbone for testing the. Mooney viscometer montech rubber testing solutions. A mooney viscometer is an instrument used for measuring the mooney viscosity of rubbers. Some viscometers such as a resonant frequency viscometer may impart some shear on the fluid, thus providing some of the input you would receive from a rheometer. The mooney viscometer is a shearingdisc viscometer, which permits to measure the mooney viscosity, precuring scorch and stress relaxation characteristics of uncompounded or c. The extent of mastication is measured by mooney viscosity units. It is a measure of the viscosity of a rubber or compound.
A recent article dealt fairly fully with most of the factors affecting results obtained with the mooney viscometer. Precision and bias 7 this can result in different viscosity values for some satm. The shimadzu automatic mooney viscometer is an excellent machine for the efficient performance of mooney viscosity and mooney scorch tests. Comparison of viscosities of rubbers from the mckee workerconsistometer and from the mooney viscometer a. Every montech rheometer and mooney viscometer is equipped with a rugged, wellproven and. Comparison of viscosities of rubbers from the mckee worker. Mooney flowgrid regulator instruction manual 5 a back pressure regulator or relief regulator controls upstream pressure instead of downstream pressure. Melvin mooney 18931968 was an american physicist and rheologist life. Mooney viscosity is a property for elastomers and rubbers and defined as the shearing torque resisting rotation of a rotor disk embedded in rubber or elastomer within a cylindrical cavity. Mooney viscometer mv2015 this test method describes the use of mooney viscometer for determining viscosity and scorch characteristics of rubber compounds and its performed according to astmd1646, bs1673, iso r289 standards standard features. Computerized instruments can obtain the viscosity measurement with repeatability within 3 units although the mean standard deviation for an average value of the same piece of.
Mooney viscometer mk iii the mk iii mooney viscometer formally negretti measures and records the viscosity of natural, synthetic or compounded rubber. Whether you need to use a viscometer or a rheometer to monitor viscosity in your processes is wholly dependent upon what fluids youre working with. Evaluation of mooney viscosity by shimadzu mooney viscometer, model smv the shimadzu mooney viscometer features excellent performance of the mooney viscosity test and the mooney scorch test on unvalcanized rubber, with high efficiency ensured by. The control action in the pilot is the reverse of a pilot for a pressure reducing regulator increasing pressure.
Pdf the influence of mixed rubber processing technology on mooney viscosity and burning time was studied. Astm d1646 rubber rheometer mooney viscometer sheet the specimen on the tenth pass. The hardness, tensile strength and din abrasion resistance were also measured. Mv 3000 basic static testing entry model instrument for repetitive mooney viscosity, mooney scorch and stress. Scorch test a scorch time at t5 and t35 for large rotor. D164619a standard test methods for rubberviscosity, stress relaxation, and prevulcanization characteristics mooney viscometer vulcanization characteristics mooney viscosity stress relaxation. When the disk, or rotor as it is called, is rotating without any load the mooney viscosity reading is zero. The mooney viscometer mv 3000 is the leading test instrument for measurement of viscosity, scorching and stress relaxation on polymers and rubber compounds. This test method describes the measurement of the mooney viscosity.
Improving the abrasion resistance of green tyre compounds. With an allnew compact design, the premier mv features multizone stress relaxation data analysis. The viscosity test of rubber materials is one important method for evaluating various functions for rubber. Dou yee enterprises is the premier total industrial solutions provider in the asia pacific region, serving with semiconductor distinction in the semiconductor, data storage, electronics and biomedical industry since 1982. Based on above seven variables, viscosoft commands to open a master file. A determination of the viscosity of raw rubber or compounded rubber. Pdf influence of processing technology on mooney viscosity and. The results showed that the enrsilica compound properties such as tensile strength and hardness were as good as those of. Mooney viscosity is the torque required to rotate the disk in the shearing disk viscometer, which is at times called a consistometer. This standard is issued under the fixed designation d. The instrument consists of flat, cylindrical disk, driven by a motor to rotate slowly and continuously in one direction. Ff mooney viscometer is a shearing disk viscometer, designed for accurate measurement of viscosity, scorch time and cure rates of the elastomers. White viscosities of three glls rubbers and three glli rubbers were measured at c wi th the mckee workerconsistometer, a pistontype capillary viscometer, and with the.
Mooney viscometer mooneycheck drive gibitre instruments. Mooney viscometer viscosity for rubber vulcanization index determination. This can be obtained by using a mooney viscometer at lower temperature. Mooneyline viscometer mooney viscometer rubber testing. In order to read a secure pdf, you will need to install the fileopen plugin on your computer. In 6 a correlation between the mooney viscos ity and the effective viscosity, obtained by means of a capillary viscometer, is found. The small rotor shall conform to ashm large rotor except the diameter shall be this can result in different viscosity values for some rubbers. The scorch time at lower temperature is of importance too. Measuring and controlling performance of shimadzu mooney. The precision expressed as as percentage of the mean, r and rwas highest for materials with the fastest decay rates high negative slope values and the lowest stress relaxation intercept values. These updates, along with the new user interface, keep the premier mv at the forefront of viscometers on the market. Micro visions mooney viscometer is a shearing disk viscometer, designed for accurate measurement of viscosity, stress relaxation, scorch time and cure rates of. Test results of mooney viscosity and scorch 1 butyl type rubber fig.
Our established mooneyline viscometer is the perfect choice for all professionals, suited for the modern laboratories at all stages of the rubber production process, efficiently producing accurate data on a variety of elastomeric compounds. He worked for the united states rubber company he developed the mooney viscometer used to measure viscosity of rubber compounds during curing. Line gbt1232 unvulcanized rubber mooney viscosity, gb t 1233 rubber, determination of characteristics of the initial curing mooney viscometer and iso289, iso667 and other standards. Please first verify your email before subscribing to alerts your alert profile lists the documents that will be monitored. Spc software of mooney viscometer can draw and analyze the test results of mooney values and scorch times such as xmr, xr, histogram and normal distribution. The mv one mooney viscometer is a fullyfeatured instrument incorporating the latest technology for traditional mooney testing. The mk iii mooney viscometer formally negretti measures and records the viscosity of natural, synthetic or compounded rubber. Once the verification process is completed, a detailed pdf report with all.
768 613 1155 146 4 72 203 926 1124 1382 1392 34 71 804 302 786 1002 1416 1054 14 73 760 246 852 230 282 304 45 997 174 521 797 860 276 833 463 1455 588 590 400 461 556 1347 968 780 1289 244 420 1013 1108