| Research Progress in Polymer Multilayer Co-extrusion Technology |
| Received:November 27, 2023 Revised:November 27, 2023 |
| DOI：10.12136/j.issn.1000-890X.2024.03.0232 |
| Key Words: polymer multilayer co-extrusion technology；multilayer films；nanoscale effect；interface effect；structural effect；confined crystallization |
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| Abstract: |
| Polymer multilayer co-extrusion technology is a technique that uses a specially designed extrusion die to produce hundreds or thousands of layers of thin films from two different polymer materials.This technology can overcome the limitations of phase separation of traditional composite materials，achieving effective combination of different polymer materials.The nanoscale effect，interface effect and structural effect generated by polymer multilayer co-extrusion technology have broad applicability.Nanoscale effect can effectively control the crystalline phase and orientation of polymer crystals.Interface effect serves as an effective mean to study the interactions between polymer materials and can be used to manufacture novel materials，such as all-interface materials.Structural effect has optical significance，utilizing one-dimensional ordered layered structures to produce one-dimensional photonic crystals and combining the orientation characteristics of polymer materials，resulting in unique effects on the reflection and refraction of light.Polymer multilayer films have significant scientific research and practical applications in various fields. |
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