WEAR BEHAVIOR OF CERVICAL FUSION PLATES FABRICATED FROM POLYETHYLENE REINFORCED BY KEVLAR AND CARBON FIBERS

Journal of the Egyptian Society of Tribology Pub Date : 2021-01-01 DOI:10.21608/jest.2021.141322

Eyad

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引用次数: 3

Abstract

The cervical spine plays an essential role in limiting the physiological ranges of motion in the neck. However, traumatic loading such as that experienced in automotive crash and other scenarios can lead to ligament damage and result in neck injury. The objective of the present study is to investigate the wear behavior of cervical fusion plates fabricated from polyethylene reinforced by kevlar and carbon fibers as alternative of anterior cervical disk fusion arthroplasty. Cervical artificial plates made of high-density polyethylene (HDPE) reinforced by carbon fibers (CF) and kevlar fibers (KF) were tested using reciprocating wear machine. It was found that the tested composites free of reinforcing fibers showed relatively higher wear values compared to composites reinforced by CF or KF. As the volume content of the tested fibers increased, wear decreased. Besides, composites reinforced by KF offered lower wear values than that caused by composites reinforced by CF. It seems that improvement in wear may be attributed to the strengthening effect of the tested fibers, where they withstand the shear and tensile stresses inside the matrix of the composites.

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聚乙烯凯夫拉纤维和碳纤维增强颈椎融合板的磨损性能

颈椎在限制颈部的生理活动范围方面起着至关重要的作用。然而，在汽车碰撞和其他场景中经历的创伤性载荷可能导致韧带损伤并导致颈部损伤。本研究的目的是研究由聚乙烯增强凯夫拉纤维和碳纤维制成的颈椎融合板作为前路颈椎椎间盘融合术的替代品的磨损行为。采用往复式磨损试验机对碳纤维(CF)和凯夫拉纤维(KF)增强高密度聚乙烯(HDPE)颈椎人工板进行了测试。结果表明，与CF或KF增强复合材料相比，未添加增强纤维的复合材料的磨损值相对较高。随着被测纤维体积含量的增加，磨损减小。此外，KF增强复合材料的磨损值比CF增强复合材料的磨损值低。似乎磨损的改善可能是由于被测纤维的增强作用，它们承受了复合材料基体内部的剪切和拉应力。

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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Journal of the Egyptian Society of Tribology

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