开心果壳生物炭作为短土耳其大麻纤维复合材料的增强填料:通往可持续材料的道路

IF 2.6 4区 化学 Q3 POLYMER SCIENCE
Mahesh Gurusamy, Ramakrishnan Thirumalaisamy, Manickaraj Karuppusamy, Gokulkumar Sivanantham
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引用次数: 0

摘要

本研究探讨了开心果壳(PNS)作为短土耳其大麻(STH)纤维天然纤维基聚合物复合材料生物炭填料的潜力。PNS通过热解制成生物炭,并加入以不同浓度(5-25 wt. %)的STH纤维增强的聚酯树脂基体中。复合材料是用压缩成型制造的,具有机械、热、声学和吸水性能。结果表明,PNS生物炭的掺入可显著提高其抗拉强度47.36 MPa,抗折强度82.88 MPa,冲击强度28.68 kJ/m2, Shore-D硬度82.49,最佳掺入浓度为15 wt. %。导热系数提高到0.185 W/m·K,在海水和蒸馏水中的吸水率分别降至3.8%和5.7%。吸声性能也得到改善,最大降噪系数(NRC)为0.30。然而,在高生物炭浓度(> 15 wt. %)下,它会导致颗粒聚集和空洞形成,导致机械和声学性能降低。扫描电镜(SEM)显示,这些生物炭复合材料具有最小的空隙形成和强的界面键合在生物炭和大麻纤维之间的最佳15 wt. %的成分。这突出了使用PNS生物炭作为天然纤维复合材料中可持续填料的可行性,为具有增强性能和减少环境影响的合成材料提供了有前途的替代品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pistachio shell biochar as a reinforcing filler in short Turkish hemp fiber composites: a path toward sustainable materials

This study investigated the potential of pistachio nut shells (PNS) as a biochar filler in short Turkish hemp (STH) fibre natural fibre-based polymeric composites. PNS were made into biochar through pyrolysis and incorporated into a polyester resin matrix reinforced with STH fibres at varying concentrations (5–25 wt. %). The composites were fabricated using compression moulding and characterised for their mechanical, thermal, acoustic, and water absorption properties. The results showed that the incorporation of PNS biochar significantly enhanced its tensile strength of 47.36 MPa, flexural strength of 82.88 MPa, impact strength of 28.68 kJ/m2, and Shore-D hardness of 82.49, with an optimal concentration of 15 wt. %. The thermal conductivity increased to 0.185 W/m·K, while the water absorption in seawater and distilled water was minimised to 3.8% and 5.7%, respectively. The sound absorption properties were also improved, with a maximum noise reduction coefficient (NRC) of 0.30. However, at high biochar concentrations (> 15 wt. %), it led to particle clustering and void formation, resulting in reduced mechanical and acoustic properties. Scanning electron microscopy (SEM) revealed that these biochar composites had minimal void formation and strong interfacial bonding between the biochar and hemp fibres for the optimal 15 wt. % compositions. This highlights the feasibility of using PNS biochar as a sustainable filler in natural fibre composites, offering a promising alternative to synthetic materials with enhanced properties and reduced environmental impact.

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来源期刊
Journal of Polymer Research
Journal of Polymer Research 化学-高分子科学
CiteScore
4.70
自引率
7.10%
发文量
472
审稿时长
3.6 months
期刊介绍: Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.
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