BS ISO 6721-10-2001
塑料.动态机械性能的测定.使用平板振荡流变仪测定复合剪切粘度

Plastics - Determination of dynamic mechanical properties - Complex shear viscosity using a parallel-plate oscillatory rheometer

BS ISO 6721-10-2001 发布历史

This part of ISO 6721 specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range 0,01 rad·s to 100 rad·s by means of an oscillatory rheometer with a parallel-plate geometry. Angular frequencies outside this range can also be used (see note 1). The method is used to determine values of the following dynamic rheological properties: complex shear viscosity η, dynamic shear viscosity η', the out-of-phase component of the complex shear viscosity η", complex shear modulus G, shear loss modulus G" and shear storage modulus G'. It is suitable for measuring complex shear viscosity values typically up to approximately 10 MPa·s (see note 2). NOTE 1 The angular-frequency measurement range is limited by the specification of the measuring instrument and also by the response of the specimen. When testing using angular frequencies lower than 0,1 rad·s the test time can increase significantly as the time taken to obtain a single measurement is proportional to the reciprocal of the angular frequency. Consequently, when testing at low angular frequencies degradation or polymerization of the specimen is more likely to occur and have an effect on the results. At high angular frequencies the specimen may distort or fracture at the edge, consequently invalidating the test results. NOTE 2 The range of complex shear viscosity values that can be measured is dependent on the specimen dimensions and also the specification of the measuring instrument. For a specimen of given dimensions, the upper limit of the range is limited by the machine's torque capacity, angular-displacement resolution and compliance. However, correction can be made for compliance effects.

BS ISO 6721-10-2001由英国标准学会 GB-BSI 发布于 2001-10-01，并于 2001-10-01 实施。

BS ISO 6721-10-2001 在中国标准分类中归属于: G31 合成树脂、塑料基础标准与通用方法，在国际标准分类中归属于: 83.080.01 塑料综合。

BS ISO 6721-10-2001的历代版本如下：

• 2001年10月01日 BS ISO 6721-10-2001 塑料.动态机械性能的测定.使用平板振荡流变仪测定复合剪切粘度
• 2015年10月31日 BS ISO 6721-10-2015 塑料.动态机械性能的测定.使用平板振荡流变仪测定复合剪切粘度

BS ISO 6721-10-2001 由 BS 2782-3 Method 323G-1997 变更而来。

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标准号

BS ISO 6721-10-2001

发布日期

2001年10月01日

实施日期

2001年10月01日

废止日期

无

中国标准分类号

G31

国际标准分类号

83.080.01

发布单位

GB-BSI

被代替标准

98/122553 DC-1998 BS 2782-3 Method 323G-1997

适用范围

This part of ISO 6721 specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range 0,01 rad·s to 100 rad·s by means of an oscillatory rheometer with a parallel-plate geometry. Angular frequencies outside this range can also be used (see note 1). The method is used to determine values of the following dynamic rheological properties: complex shear viscosity η, dynamic shear viscosity η', the out-of-phase component of the complex shear viscosity η", complex shear modulus G, shear loss modulus G" and shear storage modulus G'. It is suitable for measuring complex shear viscosity values typically up to approximately 10 MPa·s (see note 2). NOTE 1 The angular-frequency measurement range is limited by the specification of the measuring instrument and also by the response of the specimen. When testing using angular frequencies lower than 0,1 rad·s the test time can increase significantly as the time taken to obtain a single measurement is proportional to the reciprocal of the angular frequency. Consequently, when testing at low angular frequencies degradation or polymerization of the specimen is more likely to occur and have an effect on the results. At high angular frequencies the specimen may distort or fracture at the edge, consequently invalidating the test results. NOTE 2 The range of complex shear viscosity values that can be measured is dependent on the specimen dimensions and also the specification of the measuring instrument. For a specimen of given dimensions, the upper limit of the range is limited by the machine's torque capacity, angular-displacement resolution and compliance. However, correction can be made for compliance effects.

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