METHOD FOR DETERMINING OR MONITORING THE DEGREE OF HARDENING OF THERMOSETTING POLYMERS Russian patent published in 2023 - IPC G01N3/08 

FIELD: polymers.

SUBSTANCE: objective of the claimed invention is to develop a method for determining or continuously monitoring the degree of curing of polymers. The technical result of the invention is a method for monitoring the degree of curing, which, depending on the problem statement, can be carried out as quantitative, non-destructive, continuous, for real-time monitoring of curing directly on the material, or product, or applied reactive adhesive, or reactive coating, or colouring at one point or several points at the same time. The method includes the following steps: measurement during the manufacturing process of the specified product of the change in the electromagnetic properties of the specified product, in which a test material is previously embedded, which is an electrically conductive or semi-conductive additive or a composition containing at least an electrically conductive or semi-conductive additive and a thermosetting polymer; determining the degree of curing of the specified product based on a comparison of the measured electromagnetic properties of the specified product and the reference data of the dependence of the electromagnetic properties of the specified test material on the degree of curing of the material of the specified product.

EFFECT: method for monitoring the degree of curing, which, depending on the problem statement, can be carried out as quantitative, non-destructive, continuous, for real-time monitoring of curing directly on the material, or product, or applied reactive adhesive, or reactive coating, or colouring at one point or several points at the same time.

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