Precise MFR and MVR measurements according to ISO 1133 procedure B and ASTM D1238 procedure B in the basic version. Additional multi-weight measurements according to ASTM D1238 procedure D to determine the flow rate ratio (FRR) possible.
新一代的熔融指数测试由GÖTTFERT的mi40呈现
原料检测和质量控制(QC)部门的使用者，可以体验到根据标准ASTM D1238和ISO 1133测得MFR(质量熔指)和MVR(体积熔指)的自动化和更准确的测定优势。
mi40结合了MI-3的所有优势，并具有更高的自动化程度。驱动器用于预压或挤出余料的总力可达60 kg。用于自动测试计划控制的集成砝码多达9个，这大大提升了操作的简便性 砝码自动预压或驱动预压减少了操作人员对测量结果的影响。全自动多砝码测量，每桶料可测试多大8个砝码重量。
由于高精度的位移测量，即使非常低或非常高的MFR/MVR值也可以准确的记录。在测试砝码导杆上的外部活塞导向，使得即使高粘度材料也有很高的重复性。
我们的经验表明，洁净度对熔融指数测量的精度和准确度有非常大的影响。由于这个原因，带有可更换测试通道的测试膛可以旋转，便于加料和清理 可选的集成半自动清洗装置，使清洗更加容易。
mi40熔指仪可以根据ISO 1133方法B和ASTM D1238方法B进行MFR或MVR测量。也可以根据ASTM D1238方法D计算FRR(流量比)
选配的切割单元,可以使测试按照ISO 1133方法A和ASTM D1238方法A计算。通过特殊的口模，测试也可以按照标准ASTM D1238 方法C（“半口模”）或者ASTM D3364
mi40还可以与各种附加组件相结合。例如，“粘度测量”附加组件将mi40变成了mi40 visco—种毛细管流变仪。这使得可以按照ISO 11443进行粘度测量。结合一个拉伸流变仪mi40成为D-MELT。在单一的测试中，可以确定MFR和MF，一个关键指标，拉伸粘度可以确定
Good to know
Cleanliness is essential for precise melt flow index measurements. The swivel-out test chamber with exchangeable test channel enables easy filling and cleaning. The optional semi-automatic cleaning device offers even more convenience.
mi40 x visco
The mi40 can also be extended with various add-ons. The add-on “viscosity measurement” makes the mi40 into a capillary rheometer - the mi40 visco.
This can be used to carry out viscosity measurements according to ISO 11443.
mi40 x HAUL-OFF
In combination with an elongation rheometer, the mi40 can be used as a D-MELT.
Both the MFR and the MF, a key figure for the elongational viscosity, can then be determined in one measurement.
Specification
for even more functionality
CUSTOMIZED TO YOUR REQUIREMENTS
Our modular add-ons also offer an extended option for characterizing materials.
Our miCONNECT software is a browser-based platform for workstation-independent management and analysis of measurement data, which can be used without installation.
The residual moisture has a considerable influence on the measurement result for certain test materials. Therefore, it is recommended to dry test materials before a IV measurement and to determine the residual moisture.
GÖTTFERT熔融指数仪可以有多种选配单元。此外，我们也提供一些附加设备，可以用来拓展设备功能。比如如下附加设备：
The measuring head is mounted below the die. The measurement can be carried out parallel to a viscosity measurement.
Multi-Load-Measurements
Both our mi40 and MI-ROBO 89.16 can perform automated multi-load measurements with only one filling of...
mi40 visco: Viscosity measurements on a plastometer
With the add-on "viscosity measurement" the mi40 is transformed into a mi40 visco. This enables the plastometer to perform viscosity measurements according to the standard for capillary rheometers ISO 11443...
Melt Flow Indexer (MFR/MVR) vs. Capillary Rheometer
A Capillary Rheometer as well as a Melt Flow Indexer (Plastometer) can compare the flow behaviour of polymer plastics...
MFR-Standards: ISO 1133 and ASTM D1238
The determination of the melt flow rate (MFR) and the melt volume rate (MVR) is described in various international standards...
MFR/MVR: Common Terms
Over the years, quite a number of different terms have become established in the field of melt flow measurements, often with the same or similar meanings. This sometimes leads to misunderstandings and the whole subject area seems more complicated than it actually is...
Intrinsic Viscosity
The intrinsic viscosity (IV), also referred as intrinsic viscosity, or Staudinger index [η]...
Determination of Melt Flow Index (MFR and MVR)
The melt flow index is a standardized test method to determine the flow rate of plastics at a defined temperature and constant force. The test method...
Reproducible and Accuracy of Melt-Index-Tests
GÖTTFERT Melt Flow Testers (Plastometers) are manufactured according to the most modern electronic and mechanical standards with minimal manufacturing tolerances. The result is a testing device which delivers precise and accurate MVR and MFR test results.
Better than ISO 1133
All our melt index testers are equipped with a fast and precise temperature control...
