Polymer surface microstructure controllable forming mechanism research method based on phase field model

Abstract

The invention discloses a polymer surface microstructure controllable forming mechanism research method based on a phase field model. The method comprises the following steps of S1, heating a sample, namely a polymer material, at a certain temperature to reach a molten state; S2, applying an electric field to the polymer in the molten state, and inducing the surface microstructure of the polymer to form various array structures by patterning an electrode plate and setting different electric field intensities so as to obtain the morphological change conditions of the surface microstructure of the polymer at different time periods; S3, establishing a system model of an electric field induced polymer surface microstructure; and S4, compiling the differential equation in the model to obtain simulation data, and importing the simulation data into visual software for image display to obtain a corresponding analog simulation result. According to the method, the dynamic process that the electric field induces the formation of the polymer surface microstructure is simulated, so that the formation change of the polymer surface structure is more intuitively observed, and the influence of the shape, parameters, air gaps, polymer film thickness and the like of the electric field on an experiment is researched.

Description

technical field [0001] The invention belongs to the field of micro-nano technology, and in particular relates to a research method for the controllable forming mechanism of polymer surface microstructure based on a phase field model. Background technique [0002] As a method of controlling friction and wear, the micro-texture on the surface can effectively improve the tribological properties of the surface of the friction pair, increase the load-carrying capacity, and prolong the service life. According to different needs, using soft materials to process micro-textured surfaces with similar special functions will have a certain positive effect on the development of society and the progress of science. [0003] At present, the research on surface micro-textures mostly focuses on hard materials and pit micro-textures, while the research on the friction and wear characteristics of soft materials and convex micro-textures is still lacking; at the same time, the existing surface ...

AI Technical Summary

Problems solved by technology

Electric field-induced surface forming has gradually become a research hotspot due to its high-efficiency and simple processing advantages. However, most of the current research is experimental and lacks a theoretical basis for simulation, so it is impossible to control the precision of polymer micro-nano structure forming.

The existing simulation research results fail to explain the material forming law, that is, the mechanism of the action of parameters such as electric field strength and air gap on the polymer

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