Adaptive time resolved correlation technique for non-equilibrium dynamics of epoxy resin curing evaluation

IF 3.5 2区工程技术 Q2 OPTICS

Optics and Lasers in Engineering Pub Date : 2024-09-17 DOI:10.1016/j.optlaseng.2024.108591

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引用次数: 0

Abstract

The time-resolved correlation technique is a standard approach for examining the intricate microscopic dynamics within polymeric materials. Nonetheless, its traditional application falls short in providing the real-time tracking capabilities required for monitoring the dynamic progression effectively. In this study, we propose adaptive time resolved correlation technique to observe the progression of microscopic dynamics during epoxy resin curing. By employing an adaptive processing method with a scheme for baseline auto-determination and the shortest delay time adjustment, the acquisition of intensity autocorrelation function is adjusted to accommodate the evolving dynamics of the system. Then the function can be well fitted to a standard model, which can reveal the system dynamics influenced by non-equilibrium factors such as internal stress relaxation and the cross-linking network. It is believed that the adaptive time resolved correlation technique effectively characterizes the progression of microscopic dynamics and holds potential as an online monitoring technique.

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环氧树脂固化非平衡动力学评估的自适应时间分辨相关技术

时间分辨相关技术是研究聚合物材料内部复杂微观动态的标准方法。然而，其传统应用无法提供有效监测动态发展所需的实时跟踪能力。在这项研究中，我们提出了自适应时间分辨相关技术来观察环氧树脂固化过程中的微观动态变化。通过自适应处理方法，采用基线自动确定和最短延迟时间调整方案，调整强度自相关函数的获取，以适应系统的动态发展。然后，该函数可以很好地拟合到标准模型中，从而揭示受内应力松弛和交联网络等非平衡因素影响的系统动态。我们相信，自适应时间分辨相关技术能有效地描述微观动态的发展过程，并具有作为在线监测技术的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques