A rheological in-situ online testing system integrating scattering and microscopy

Abstract

A rheological in-situ on-line testing system integrating scattering and microscopy, aiming at the failure of in-situ on-line observation in ordinary capillary rheometers, and the inability to observe the microcosm of samples intuitively in micro-rheological testing systems and light-scattering rheological testing systems In order to solve the problem of morphology, the present invention designs an integrated flat capillary rheological in-situ online testing system that can simultaneously perform laser light scattering and microscope observation during rheological performance testing. The tangential flow field and the rheological parameters related to the macroscopic properties of the material can also be used to detect and observe the in-situ internal microstructure of the polymer material through optical technology, and realize the microscopic imaging system, laser light scattering system and capillary flow. The organic combination of variable systems makes it easier to study the relationship between the microstructure and macroscopic properties of materials. Suitable for laboratory use in polymer processing applications.

Description

Technical field [0001] The invention relates to the field of polymer material rheological performance testing, in particular to a rheological in-situ online testing system, in particular to a rheological in-situ online testing system integrating scattering and microscopy. Background technique [0002] Rheology is the behavior of elastic, plastic and viscous deformation of polymer materials under stress. The rheological data of polymer materials is the most basic process parameter in its molding process. The selection and use of raw materials and the optimal molding process The determination of conditions, the design of molding equipment and molds, and the improvement of product quality all play an important role. At present, polymer materials are developing towards functionalization and specialization, and it is the key to the development of new materials to solve the processing performance problems with a quick method and minimum samples. [0003] The use of rheometers to determi...

AI Technical Summary

Problems solved by technology

Aiming at the problems that current capillary rheometers cannot observe on-line in situ, micro-rheological testing systems cannot clearly observe small-sized polymer structures, and light-scattering rheological testing systems cannot visually observe the microscopic morphology of samples, the present invention An integrated capillary in-situ online testing system that can simultaneously perform laser light scattering and microscope observation during the rheological performance test is designed to correlate the structural changes under the rheological field with the macroscopic rheological properties. Functionalized and specialized products, development of new formulations of polymer materials, and determination of optimal processing techniques provide convenient means and methods

Images