Test method and apparatus for rheological behavior of polymer composite material

Abstract

The invention relates to a method for testing polymer composite material rheological characteristic and a device thereof. The invention can measure the rheological actions of polymer composite material during an extrusion molding process, a capillary extrusion process and an injection molding process under the function of physical field enhancement and also can measure the rheological action of the polymer composite material when processing condition and parameter are changed according to a specific program. The invention uses a servo motor, a ball screw, an excitation system and a digital intelligent servo system to control the rheological testing process of the polymer composite material exactly, and the invention can measure the rheological characteristic of high polymer complex liquid continuously and fast under different processing conditions during the process of a single experiment. The invention can quench fused mass sharply during the testing process and then samples and studies the rheological characteristic of polymer fused mass intuitively. The invention has the high accuracy and stability of measurement data and the wide application range of material and is fit for macromolecular material, a macromolecule blending system, a macromolecule filling system, other similar macromolecular liquid systems, etc.

Description

technical field [0001] The invention relates to a method for testing the rheological properties of a polymer composite material and a device thereof, in particular to a method and a device for testing the rheological properties of a polymer composite material based on a multifunctional and all-electric type. Background technique [0002] The molding process of polymer blends or filled systems involves the complex fluid rheological behavior of polymers. To study the response mechanism and behavior of polymer complex fluids, how to precisely control their multi-level internal structure during processing, give full play to the performance potential of polymer blends or filling materials, and finally obtain a uniform and ideal structure, It is undoubtedly of great significance to rationally select forming process parameters, optimize the design of forming processing equipment, and realize high yield, high quality and low consumption. [0003] Polymer materials are a typical vis...

AI Technical Summary

Problems solved by technology

However, the above-mentioned invention does not realize the integrated design of extrusion and injection of the polymer composite material, and cannot test the rheological behavior of the polymer material during the extrusion process and the injection process at the same time; the above-mentioned invention cannot accurately control the rheological test of the polymer composite material process, that is, the rheological properties of polymer composites under different processing conditions cannot be continuously and rapidly measured in a single experiment; the above-mentioned invention cannot measure the rheological behavior under non-sinusoidal (such as zigzag, rectangular) pulsation , can not freely design the mode, action mode and action time of the external physical field, and can not measure other properties of the product under the action of different external physical fields; , statically study the rheological behavior of polymer melt; comparatively speaking, the measurement accuracy of the present invention is higher, and the maximum shear rate allowed, the maximum extrusion pressure, the maximum amplitude and the maximum vibration frequency are relatively large, and it is suitable for materials Broader

Images