Visual identification and quantitative analysis method for multiple aging paths of polymer

Abstract

The invention discloses a visual identification and quantitative analysis method for multiple aging paths of a polymer, and belongs to the field of aging imaging analysis of polymer materials. According to the invention, based on the principle that various reactions occur during polymer aging and different functional groups are generated at the same time, probe molecules with different fluorescence characteristics are adopted to recognize the different functional groups generated during polymer aging reactions in a targeted mode, so that simultaneous marking and visualization of various aging reaction paths are achieved; a multi-channel mode of a laser confocal microscope is adopted to carry out imaging analysis on a polymer material labeled by multiple fluorescent probes, quantitative analysis is carried out on volumes, areas, depths and the like of different aging points under multiple aging conditions, and the synergistic effect of the aging conditions is analyzed; and by comparing the change rules of n fluorescent molecules subjected to n aging reactions under different aging conditions, kinetic equations and reaction rates of the n reactions are calculated, and key influence factors of each reaction are mined.

Description

technical field [0001] The invention belongs to the technical field of material aging detection and imaging analysis, and specifically relates to a simultaneous characterization, differentiation and quantitative analysis method for different aging reactions of polymer materials under multi-factor conditions, that is, different aging paths. Background technique [0002] Polymer materials are prone to aging reactions under the stimulation of external conditions, resulting in degradation, structural changes, and functional failures of polymer materials. When polymer materials are exposed to various aging factors such as external light, heat, humidity, oxygen, and microorganisms, multiple chemical reactions will occur simultaneously, and the aging of polymers will proceed in different ways. The research on the aging path of polymers is of great significance: first, to understand the aging path of polymers under different conditions, to be able to grasp the degradation products o...

AI Technical Summary

Problems solved by technology

However, most of the computational simulation methods are based on ideal conditions and cannot be used for the detection of actual polymer products

In addition, although the detection of thermogravimetry and macroscopic properties can provide certain information for material degradation, it cannot distinguish the reaction path and predict the degradation products.

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