Viscoelasticity and impact behaviour of green epoxy bio-composites made of date palm leaflets

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Composite Structures Pub Date : 2024-07-03 DOI:10.1016/j.compstruct.2024.118347

A. Bezazi , N. Bouhemame , P.N.B. Reis , P. Santos , H. Boumediri , F. Scarpa

{"title":"Viscoelasticity and impact behaviour of green epoxy bio-composites made of date palm leaflets","authors":"A. Bezazi , N. Bouhemame , P.N.B. Reis , P. Santos , H. Boumediri , F. Scarpa","doi":"10.1016/j.compstruct.2024.118347","DOIUrl":null,"url":null,"abstract":"<div><p>Natural fibres can replace traditional synthetic fibre composites in applications for which sustainability is a critical aspect. Elghas date palm leaflets in their natural state and with handwoven fabric reinforcements—the latter from customary and regional carpet productions—are included into new bio-based composites that are produced and characterized in this work. The two classes of bio-composites have the same weight fraction in terms of reinforcement. The date palm leaflets reinforcements are dispersed in a green resin matrix. Bio-composites reinforced with leaflets tree have twice the static bending strength than those with leaflets fabric reinforcements. The viscoelastic behaviour of those bio-composites shows an opposite trend, with the laminates reinforced with leaflets fabric being the least sensitive. For an impact energy of 3 J, the strength of bio-composites with leaflets fabric is double than the analogous value shown by bio-composites with leaflets tree. The impact strength however increases by 4.7 times for lower impact energies of 1 J. The results shown here further demonstrate the possibility of developing bio-composites from agro-industrial products, waste, and local textile traditions for secondary structural applications.</p></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":null,"pages":null},"PeriodicalIF":6.3000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0263822324004756/pdfft?md5=95430fc3446080694fdf502e94438948&pid=1-s2.0-S0263822324004756-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composite Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263822324004756","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}

引用次数: 0

Abstract

Natural fibres can replace traditional synthetic fibre composites in applications for which sustainability is a critical aspect. Elghas date palm leaflets in their natural state and with handwoven fabric reinforcements—the latter from customary and regional carpet productions—are included into new bio-based composites that are produced and characterized in this work. The two classes of bio-composites have the same weight fraction in terms of reinforcement. The date palm leaflets reinforcements are dispersed in a green resin matrix. Bio-composites reinforced with leaflets tree have twice the static bending strength than those with leaflets fabric reinforcements. The viscoelastic behaviour of those bio-composites shows an opposite trend, with the laminates reinforced with leaflets fabric being the least sensitive. For an impact energy of 3 J, the strength of bio-composites with leaflets fabric is double than the analogous value shown by bio-composites with leaflets tree. The impact strength however increases by 4.7 times for lower impact energies of 1 J. The results shown here further demonstrate the possibility of developing bio-composites from agro-industrial products, waste, and local textile traditions for secondary structural applications.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

枣椰叶制成的绿色环氧生物复合材料的粘弹性和冲击行为

天然纤维可以取代传统的合成纤维复合材料，用于可持续性要求极高的应用领域。本研究将天然状态下的额尔古纳枣椰叶和手织织物加固材料（后者来自传统和地区地毯生产）纳入新型生物基复合材料，并对其进行了生产和表征。就增强材料而言，这两类生物复合材料的重量比例相同。枣椰树小叶增强材料分散在绿色树脂基体中。用小叶树加固的生物复合材料的静态抗弯强度是用小叶织物加固的生物复合材料的两倍。这些生物复合材料的粘弹性行为显示出相反的趋势，用小叶织物增强的复合材料最不敏感。在 3 焦耳的冲击能量下，使用小叶织物的生物复合材料的强度是使用小叶树的生物复合材料的两倍。这里显示的结果进一步证明了利用农用工业产品、废物和当地传统纺织品开发二次结构用生物复合材料的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.