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Rheological behavior mensuration instrument for system of supercutical fluid - polymer

A technology of supercritical fluid and rheological properties, applied in the direction of DC flow characteristic measurement, etc., can solve the problems that cannot be used to measure the rheology of polymer-supercritical fluid system, cannot be directly introduced into supercritical fluid system, etc.

Inactive Publication Date: 2007-05-09
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the various rheometers currently used to measure the rheological properties of polymers cannot be directly introduced into the supercritical fluid system, so they cannot be used to measure the rheological properties of the polymer-supercritical fluid system.

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  • Rheological behavior mensuration instrument for system of supercutical fluid - polymer

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Embodiment Construction

[0059]The supercritical fluid-polymer system rheological property tester of the present invention will be described in detail below with reference to FIG. 1 .

[0060] The polymer-supercritical fluid mixing device may include, for example, four parts: a supercritical fluid generating device, an auxiliary agent delivery device, a liquid polymer delivery device, and a mixing device.

[0061] In one embodiment of the present invention, the supercritical fluid generating device is composed of a storage 1, an optional first filter 2, a condenser 3, an optional first flow meter 4, and a first metering conveyor 5 composed of. The outlet of the reservoir 1 is connected to the inlet of the first filter 2 . The outlet of the first filter 2 is connected with the inlet of the condenser 3 . The condenser 3 can be, for example, a tube-and-tube heat exchanger. The fluid flows inside the tubes, and the coolant flows outside the tubes to cool the fluid in the tubes. The outlet of the conden...

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Abstract

A rheological performance analyzer of supercritical fluid-polymer system consists of polymer-supercritical fluid mixing unit and rheological performance analysis unit. It is featured as adding supercritical fluid unit based on thin tube rheological instrument for making it be able to be used to carry out analysis on rheological performance of polymer-supercritical fluid system.

Description

technical field [0001] The invention relates to a device for testing rheological properties of a polymer system. Background technique [0002] Almost all polymer molding technologies rely on the flow and deformation of polymers under the action of external forces to achieve the transformation from polymer raw materials or blanks to products. Mastering the rheological properties of polymers has important guiding significance for the analysis and treatment of technological and engineering problems in the processing process, and for the correct formulation of polymer processing conditions. [0003] Supercritical Fluids (SCF for short) are fluids at critical pressure (P C ) and critical temperature (T C ) above fluid, it is different from both gas and liquid, and has the characteristics of both gas and liquid: the density is similar to liquid, so it has a strong solvent strength; at the same time, the viscosity is similar to gas, so the fluidity is better than liquid Much lar...

Claims

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Application Information

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IPC IPC(8): G01N11/08G01N11/06
Inventor 刘亚青张彦飞杜瑞奎陈华
Owner ZHONGBEI UNIV
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