基于Diels-Alder化学的原始石墨烯环加成反应的共价官能化及其对聚酰胺66纤维的增强

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2021-05-08 DOI:10.1080/14658011.2021.1924454

Yuzhou Wang, Qiaoyu Liang, Shuhui Liu, Z. Yan, Xiang Yu, Tao Wang

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引用次数: 1

摘要

摘要报道了一种基于Diels-Alder环加成反应的马来酸酐(MA)直接功能化原始石墨烯的无溶剂简易方法。熔融纺丝法制备功能化石墨烯/聚酰胺66 (FGN/PA66)复合纤维具有潜在的工业应用前景。结果表明，功能化石墨烯使PA66基体界面相容，分散性提高，从而提高了PA66的力学性能。当填料含量为0.2 wt%时，石墨烯/PA66和FGN/PA66复合纤维的断裂强度分别达到最大值584 MPa和678 MPa，分别比纯PA66纤维提高了88.4%和118.8%。相信功能化石墨烯将促进石墨烯基复合材料的工业化规模制造，具有更高力学性能的FGN/PA66复合纤维将扩大PA66的应用范围。

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Covalent functionalisation by cycloaddition reaction of pristine graphene based on Diels–Alder chemistry and its reinforcement for polyamide 66 fibres

ABSTRACT A solvent-free and easy method to directly functionalize pristine graphene by maleic anhydride (MA) based on Diels-Alder cycloaddition reaction was reported. Functionalized graphene/Polyamide 66 (FGN/PA66) composite fibers were fabricated by melt-spinning as a potential industrial application. The results show that the functionalized graphene has compatibilized the interface and increased the dispersibility in the PA66 matrix, which leads to an improvement in mechanical properties. When the content of filler was 0.2 wt%, the fracture strength of graphene/PA66 and FGN/PA66 composite fibers reached the maximum value of 584 MPa and 678 MPa, respectively, which were 88.4% and 118.8% higher than that of pure PA66 fiber. It’s believed the functionalized graphene will facilitate the industrial scale fabrication of graphene based composite and the FGN/PA66 composite fibers with higher mechanical properties will expand the application of PA66.

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.