Effects of different amine-functionalized graphene oxide on the mechanical and thermal properties of polyimide composites

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2023-08-30 DOI:10.1177/09540083231199766

Yuxia Zhang, Haojie Liu, Menghan Liu, Xiaofan Ma, Haifeng Shi

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Abstract

The utilization of functionalized graphene oxide as nanofillers has attracted significant attention in the development of high-performance composite materials. In this study, amine-functionalized graphene oxide (AFGO) by different amines, including p-phenylenediamine- (PPD-GO) and 4, 4’-diaminodiphenyl ether (ODA-GO), respectively, was prepared and used to synthesize a series of polyimide (PI) composite membranes via in situ polymerization method. The PPD-GO/PI and ODA-GO/PI composite membranes exhibited much higher mechanical and thermal properties than that of neat PI, owing to the diverse interfacial interaction and the surface architecture behavior. Compared to neat PI, the tensile strengths were enhanced 14.6% and 14.5%, the tensile modulus were enhanced 26.9% and 23.2%, and the Tg increased by 9°C and 17.5°C of the PI composite membrane containing 0.3 wt% PPD-GO or ODA-GO, respectively. This study provides a guidance for the development of high-performance PI composite materials through the regulated interfacial structure via the moderate chain length.

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不同胺功能化氧化石墨烯对聚酰亚胺复合材料力学和热性能的影响

功能化氧化石墨烯作为纳米填料的应用在高性能复合材料的开发中备受关注。本研究分别以对苯二胺(PPD-GO)和4,4′-二氨基二苯醚(da - go)为原料制备了胺功能化氧化石墨烯(AFGO)，并通过原位聚合法制备了一系列聚酰亚胺(PI)复合膜。由于不同的界面相互作用和表面结构行为，PPD-GO/PI和ODA-GO/PI复合膜表现出比纯PI更高的力学和热性能。与纯PI相比，添加0.3 wt% PPD-GO和da - go的PI复合膜的拉伸强度分别提高了14.6%和14.5%，拉伸模量分别提高了26.9%和23.2%，Tg分别提高了9°C和17.5°C。该研究为通过适度链长调控界面结构，开发高性能PI复合材料提供了指导。

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

High Performance Polymers 化学-高分子科学

CiteScore

4.20

自引率

14.30%

发文量

106

审稿时长

1.2 months

期刊介绍： Health Services Management Research (HSMR) is an authoritative international peer-reviewed journal which publishes theoretically and empirically rigorous research on questions of enduring interest to health-care organizations and systems throughout the world. Examining the real issues confronting health services management, it provides an independent view and cutting edge evidence-based research to guide policy-making and management decision-making. HSMR aims to be a forum serving an international community of academics and researchers on the one hand and healthcare managers, executives, policymakers and clinicians and all health professionals on the other. HSMR wants to make a substantial contribution to both research and managerial practice, with particular emphasis placed on publishing studies which offer actionable findings and on promoting knowledge mobilisation toward theoretical advances. All papers are expected to be of interest and relevance to an international audience. HSMR aims at enhance communication between academics and practitioners concerned with developing, implementing, and analysing health management issues, reforms and innovations primarily in European health systems and in all countries with developed health systems. Papers can report research undertaken in a single country, but they need to locate and explain their findings in an international context, and in international literature.

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