用微米级竹纤维和陶瓷颗粒增强的混合复合材料的力学和吸水性能分析

IF 1.1 4区 工程技术 Q4 ENGINEERING, CHEMICAL
Danish Tahir, M. R. Abdul Karim, Hong Hu
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引用次数: 0

摘要

摘要 采用手糊法制作了竹子及其混合复合材料,以评估添加填料后机械和物理性能的变化。密度测定和拉伸试验结果表明,当添加一定比例的碳化硅(SiC)时,密度值会增加。当碳化硅的比例从 0% 增加到 6% 时,混合复合材料的密度从 1.15 gm/cc 增加到 1.36 gm/cc,而在 20 wt% 的竹复合材料中添加 4 wt% 的碳化硅时,拉伸强度从 37 MPa 增加到 42 MPa。拉伸断裂样品的扫描电子显微镜(SEM)分析进一步证实了拉伸特性的改善。为了检测冲击和硬度特性,对复合材料进行了夏比冲击试验和硬度试验。在 20 wt%的竹复合材料中添加 4 wt%的碳化硅后,冲击强度从 28.79 降至 27.43 (×10-3 kJ/m2),硬度从 44 Hv 升至 55 Hv。复合材料的吸水行为表明,添加填料提高了复合材料的抗吸水性,保持了复合材料的尺寸稳定性和机械性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of mechanical and water absorption properties of hybrid composites reinforced with micron-size bamboo fibers and ceramic particles
Abstract Bamboo and its hybrid composites were made using the hand lay-up method to evaluate the change in mechanical and physical properties that occurred through filler addition. Density measurements and tensile test results showed an increment in values when a certain percentage of silicon carbide (SiC) was added. As the SiC percentage grows from 0 to 6 %, the density of the hybrid composite increases from 1.15 to 1.36 gm/cc whereas tensile strength increases from 37 MPa to 42 MPa when 4 wt% SiC is added in 20 wt% of the bamboo composite. The scanning electron microscopy (SEM) analysis of tensile fractured samples further supported the improvement in tensile characteristics. To examine the impact and hardness characteristics, composites were subjected to the Charpy impact test and hardness test. 4 wt% of SiC addition in 20 wt% of the bamboo composite decreased the impact strength from 28.79 to 27.43 (×10−3 kJ/m2) and increased the hardness from 44 to 55 Hv. The composites’ water absorption behavior demonstrated that the addition of filler lifts the composite’s resistance to absorbing water, preserving the composites’ dimensional firmness and mechanical qualities.
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来源期刊
International Polymer Processing
International Polymer Processing 工程技术-高分子科学
CiteScore
2.20
自引率
7.70%
发文量
62
审稿时长
6 months
期刊介绍: International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.
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