Design, fabrication, and tribological performance of porous wood-inspired composites modified with functional h-BN and epoxy resin

IF 7.7 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-09-14 DOI:10.1016/j.coco.2025.102588

Liyuan Zhang , Conglin Dong , Chengqing Yuan , Xiuqin Bai , Shaoli Jiang

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引用次数: 0

Abstract

The tribology of wood is an ancient subject, yet its underlying mechanisms remain complex and challenging. However, the poor mechanical strength and self-lubricating performance of wood limit its application in specific industries, such as water-lubricated bearings. In this paper, a simple and efficient method was proposed to enhance the comprehensive performance of porous wood (PW). Specifically, hexagonal boron nitride (h-BN) was attached to the walls of wood conduits by a dripping process to enhance its tribological properties. Subsequently, epoxy was used to reinforce the hollow conduit structure to improve deformation resistance. Novel h-BN-curing epoxy/porous wood (HCW) composites were prepared by the h-BN dripping and epoxy curing processes. The influences of the processes on mechanical properties, coefficient of friction (COF), wear morphology, and friction-induced vibration were systematically evaluated. The results showed that the wood-inspired composites treated with 15 cycles of h-BN dripping exhibited superior tribological performance and vibration response. The synergistic effects of h-BN dripping and epoxy curing processes remarkably suppressed fluctuations of frictional excitation forces and the violent wear, thereby improving the vibration reduction characteristics of the wood. This study provides a theoretical and technical basis for the development of amended porous wood-inspired composites aimed at weakening vibration and extending the service life of wood.

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功能化氢氮化硼和环氧树脂改性多孔木质复合材料的设计、制造和摩擦学性能

木材摩擦学是一门古老的学科，但其潜在的机制仍然复杂和具有挑战性。然而，木材较差的机械强度和自润滑性能限制了其在特定行业中的应用，例如水润滑轴承。本文提出了一种简单有效的提高多孔木材综合性能的方法。具体来说，六方氮化硼（h-BN）通过滴注的方式附着在木管壁上，以提高其摩擦学性能。随后，采用环氧树脂对空心导管结构进行加固，以提高其抗变形能力。采用h-BN滴固化和环氧固化工艺制备了新型h-BN固化环氧/多孔木材复合材料。系统评价了工艺对复合材料力学性能、摩擦系数、磨损形貌和摩擦振动的影响。结果表明：经15次h-BN滴注处理的木质复合材料具有优异的摩擦学性能和振动响应。h-BN滴胶和环氧树脂固化工艺的协同作用显著抑制了木材的摩擦激振力波动和剧烈磨损，从而改善了木材的减振特性。本研究为开发以减振、延长木材使用寿命为目标的改性多孔木激励复合材料提供了理论和技术基础。

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

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.