Calcium-reinforced graphene oxide-biopolymer nanocomposite: A novel and sustainable sizing agent for enhancing E-glass fibers strength and adhesion in cement composites

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING Composites Part A: Applied Science and Manufacturing Pub Date : 2025-02-16 DOI:10.1016/j.compositesa.2025.108808

Abins Aziz, T. Jihad Thashreef, Bijily Balakrishnan, Shihabudheen M. Maliyekkal

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Abstract

The study demonstrates the development of a novel and sustainable sizing agent to improve the mechanical properties and compatibility of E-glass fibers (EGF) in cement composites. The sizing agent comprises chitosan (a biopolymer), graphene oxide and a calcium precursor. The graphene oxide and calcium ions help reinforce and crosslink chitosan fibers, enhancing the composite’s mechanical strength and bonding with the cement matrix. The tensile strength and the fracture strain of modified EGFs increased by 1.47 and 1.52 times, respectively. Due to the high deformation capability of the composite, the study revealed that the coating remains intact until the glass fiber fractures. Digital image correlation measurements on GFRC specimens confirm a strong bond between the coating and concrete matrix. The XPS and ATR-IR spectroscopy analyses confirm the interaction between surface-modified EGFs and cement matrix. The nanocomposite offers a sustainable alternative to conventional sizing employed in EGFs for GFRC applications.

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钙增强氧化石墨烯-生物聚合物纳米复合材料：一种新型可持续施胶剂，可增强e-玻璃纤维在水泥复合材料中的强度和附着力

该研究展示了一种新型可持续施胶剂的开发，以改善e -玻璃纤维（EGF）在水泥复合材料中的力学性能和相容性。施胶剂包括壳聚糖（一种生物聚合物）、氧化石墨烯和钙前体。氧化石墨烯和钙离子有助于增强和交联壳聚糖纤维，增强复合材料的机械强度和与水泥基体的结合。改性EGFs的抗拉强度和断裂应变分别提高了1.47倍和1.52倍。由于复合材料的高变形能力，研究表明涂层在玻璃纤维断裂之前保持完整。GFRC试件的数字图像相关测量证实了涂层与混凝土基体之间的牢固结合。XPS和ATR-IR光谱分析证实了表面改性EGFs与水泥基质之间的相互作用。纳米复合材料为GFRC应用中使用的egf提供了一种可持续的替代方案。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.