Preparation and characterization of a graphene hybridizing polyurethane damping composite

IF 1.9 4区材料科学 Q3 Materials Science

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI:10.1515/secm-2022-0014

Chi Ma, Weilin Zhang, L. Wang, Zhuo Guo, Yan Jiang, Y. Shan, Jingyi Chen, Ying Wang, L. T. Sin

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引用次数: 1

Abstract

Abstract A graphene hybridizing polyurethane/polyethyl methacrylate (GR-PU/PEMA) damping composite was synthesized using the sequential interpenetration method. The effects of the graphene content and the microphase separation structure on the damping properties, thermal stability, and mechanical properties have been studied in detail. The dynamic mechanical analysis indicated that graphene could improve the damping peak value of PU/PEMA, and the microphase separation structure could be beneficial for broadening the damping temperature range. The damping peak (tan σ max) of PU/PEMA hybridizing with 0.5 wt% graphene reached 0.82, and the temperature range of the loss factor (tan σ ≥ 0.3) was expanded to 88.3°C. Analysis of scanning electron microscopy, transmission electron microscopy, and small-angle X-ray scattering reveals that graphene is uniformly dispersed in the polymer matrix, and the composite with interpenetrating polymer network (IPN) shows more microphase separation structures. Fourier transform infrared analysis indicated that there is strong interaction between graphene and IPN matrix. Furthermore, the addition of graphene improved the mechanical properties and thermal stability of composites.

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石墨烯杂化聚氨酯阻尼复合材料的制备与表征

摘要采用序贯法合成了石墨烯杂化聚氨酯/聚甲基丙烯酸酯(GR-PU/PEMA)阻尼复合材料。详细研究了石墨烯含量和微相分离结构对材料阻尼性能、热稳定性和力学性能的影响。动态力学分析表明，石墨烯可以提高PU/PEMA的阻尼峰值，微相分离结构有利于扩大阻尼温度范围。与0.5 wt%石墨烯杂化后，PU/PEMA的阻尼峰(tan σ max)达到0.82，损耗因子(tan σ≥0.3)的温度范围扩大到88.3℃。扫描电镜、透射电镜和小角度x射线散射分析表明，石墨烯均匀分散在聚合物基体中，具有互穿聚合物网络(IPN)的复合材料显示出更多的微相分离结构。傅里叶变换红外分析表明石墨烯与IPN基体之间存在较强的相互作用。此外，石墨烯的加入改善了复合材料的力学性能和热稳定性。

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来源期刊

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.