改进型 3D 打印机制造的连续碳纤维增强复合材料的拉伸性能

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Express Pub Date : 2024-07-12 DOI:10.1088/2053-1591/ad62c0

Yilmaz Gur, Sare Celik, Raif Sakin

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引用次数: 0

摘要

本研究旨在强调在三种不同的聚合物基体中添加低量（7.5%）连续碳纤维增强材料的影响，以及在热压下进行后处理对结构机械性能的影响。对熔融沉积成型（FDM）打印机的打印头进行了改装，以便直接将聚合物基体和连续碳纤维丝束挤压在一起。纯样品和碳纤维增强样品均在 100°C 和 10 kN 压力下热压固化 15 分钟。所有样品都进行了拉伸和硬度测试，并使用扫描电子显微镜分析了断裂样品的微观结构。结果表明，连续碳纤维加固和热压对提高三维打印物体的机械性能至关重要。

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Tensile behaviour of continuous carbon fibre reinforced composites fabricated by a modified 3D printer

This study aims to highlight the impact of low-volume (7.5%) continuous carbon fibre reinforcement in three different polymer matrices and the effects of post-processing under hot pressing on the mechanical properties of the structures. A fused deposition modelling (FDM) printer's print head was modified to directly extrude the polymer matrix and continuous carbon fibre tow together. Both pure and carbon fibre-reinforced samples were cured under hot pressing at 100°C and 10 kN pressure for 15 minutes. All samples underwent tensile and hardness tests, and the microstructure of fractured samples was analysed using a scanning electron microscope. The results indicate that continuous carbon fibre reinforcement and hot pressing are crucial for enhancing the mechanical performance of 3D-printed objects.

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来源期刊

Materials Research Express MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

4.30%

发文量

640

审稿时长

12 weeks

期刊介绍： A broad, rapid peer-review journal publishing new experimental and theoretical research on the design, fabrication, properties and applications of all classes of materials.