ISO 1133:2005 塑料 热塑性塑料的熔化质量流速（MFR）和熔化体积流速（MVR）的测定

标准编号：ISO 1133:2005

中文名称：塑料 热塑性塑料的熔化质量流速（MFR）和熔化体积流速（MVR）的测定

英文名称：Plastics — Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics

发布日期：2005-06

标准范围

ISO 1133:2005规定了在规定温度和负荷条件下测定热塑性材料熔体质量流率（MFR）和熔体体积流率（MVR）的两种程序。一种是质量测量方法。另一种是位移测量方法。通常，材料标准参考ISO 1133规定了测量熔体流动速率的试验条件。附录中列出了热塑性塑料通常使用的试验条件。这些方法原则上也适用于热塑性塑料，其流变行为在测量过程中受到水解、缩合或交联等现象的影响，但前提是影响范围有限，且重复性和再现性在可接受范围内。对于在试验过程中表现出显著影响流变性能的材料，这些方法不适用。在这种情况下，建议使用根据ISO 1628相关部分测定的稀溶液粘度值进行表征。

ISO 1133:2005 specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. One is a mass-measurement method. The other is a displacement-measurement method. Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to ISO 1133. The test conditions normally used for thermoplastics are listed in annexes.These methods are in principle also applicable to thermoplastics for which the rheological behaviour is affected during the measurement by phenomena such as hydrolysis, condensation or crosslinking, but only if the effect is limited in extent and only if the repeatability and reproducibility are within an acceptable range. For materials which show significantly affected rheological behaviour during testing, these methods are not appropriate. In such cases, the use of the viscosity number in dilute solution, determined in accordance with the relevant part of ISO 1628, is recommended for characterization purposes.

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