An inclusive study on the effect of polyurethane component variation on the dynamic mechanical properties of EP/PU IPNs in multiple modes

IF 5.1 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-09-17 DOI:10.1016/j.reactfunctpolym.2025.106484

Jianlong Wang , Tongtong Zhang , Hongxi Zhu , Xiaoming Cao , Teng Ma , Zhijia Zhang , Lin Wang , Xiaoji Liu , Qiang Wang , Guojun Wang , Songsong Zhang , Hao Wei

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Abstract

Interpenetrating polymer networks (IPNs) constructed from polyurethane (PU) and epoxy resin (EP) are high-performance polyester-based materials. In this study, we systematically investigated the effect of variation in the PU component, including its content and molecular weight, on the property of EP/PU IPNs. The focus was on the changes in dynamic mechanical properties, characterized and analyzed through dynamic parameters under different modes, to reveal the influence of the PU component on the energy dissipation capacity of the material. Additionally, we conducted performance tests on IPNs materials constructed with different polyols, with a particular emphasis on dynamic mechanical property, and identified the superior PCL-2000 series (the effective damping temperature range △T is close to 50 °C in tensile mode, and the peak of the loss factor in compressive mode still reaches nearly 0.8). These findings constitute a comprehensive study on the dynamic mechanical property of EP/PU-based materials and provide crucial data support and empirical analysis for the development of high-energy functional material.

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多元模态下聚氨酯组分变化对EP/PU ipn动态力学性能影响的综合研究

由聚氨酯（PU）和环氧树脂（EP）构筑的互穿聚合物网络（ipn）是一种高性能的聚酯基材料。在这项研究中，我们系统地研究了PU组分的变化，包括其含量和分子量，对EP/PU ipn性能的影响。重点研究不同模式下材料动态力学性能的变化，通过动态参数进行表征和分析，揭示PU组分对材料耗能能力的影响。此外，我们对不同多元醇构成的ipn材料进行了性能测试，特别强调了动态力学性能，并确定了PCL-2000系列的优异性能（拉伸模式下有效阻尼温度范围△T接近50°C，压缩模式下损耗因子峰值仍接近0.8）。这些发现构成了对EP/ pu基材料动态力学性能的全面研究，为高能功能材料的开发提供了重要的数据支持和实证分析。

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

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.