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IMPACT TEST ANALYSIS OF NATURAL FIBRE REINFORCED POLYMER COMPOSITES FABRICATED WITH BAST FIBRES FOR INDUSTRIAL/HOUSEHOLD APPLICATIONS 工业/家用用由韧皮纤维制成的天然纤维增强聚合物复合材料的冲击试验分析
E. I. Kalu, M. Skrifvas, P. Khalili, D. Akesson, E. N. Ikezue
The Charpy impact test measures the amount of energy absorbed by a standard notched specimen while breaking under an impact load. The test consists of striking a suitable specimen with a hammer on a pendulum arm while the specimen is held securely at each end. Composites are judicious combination of two or more materials that produces aggregate properties that are different from those of its constituents. Composites are hybrid materials made of a polymer resin reinforced by fibres, combining the high mechanical and physical properties of the fibres and the appearance, bonding and physical properties of the polymers. This work studies the impact strength for given range of temperature (210°C-180°C), force (5-8KN) and time (8-15 mins) for six natural fibres reinforced with polypropylene matrix base. The bast fibres include viscose, rayon, lyocell, linen, jute and hemp. The results show for rayon a maximum impact strength of 32.3144KJ/m2 at a force of 3KN, time of 10 mins and a temperature of 200°C, for viscose a maximum impact strength of 30.7716KJ/m2 at a temperature of 180°C, time of 15 mins and force of 5KN. Lyocell had a maximum impact strength of 29.3869KJ/m2 for an elapsed time of 10 mins, impact force of 3KN and a temperature of 200°C, linen had a maximum strength of 35.8735KJ/m2 at an elapsed time of 10 mins, impact force of 3KN at a temperature of 200°C, jute had a maximum strength of 13.2075KJ/m2 at an elapsed time of 8 mins, impact force of 3KN and a temperature of 210°C, and hemp had a strength of 12.7050KJ/m2 at an elapsed time of 10 mins, impact force of 3KN and a temperature of 200°C. Received: April 29, 2023Revised: May 28, 2023Accepted: June 29, 2023
夏比冲击试验测量的是标准缺口试样在冲击载荷下断裂时所吸收的能量。该试验包括用锤在摆臂上敲击合适的试样,同时将试样牢牢地固定在两端。复合材料是两种或两种以上材料的合理组合,产生不同于其组成部分的聚合性能。复合材料是由纤维增强的聚合物树脂制成的混合材料,结合了纤维的高机械和物理性能以及聚合物的外观,粘合和物理性能。本文研究了六种聚丙烯基增强天然纤维在给定温度(210°C-180°C)、力(5-8KN)和时间(8-15分钟)范围内的冲击强度。韧皮纤维包括粘胶、人造丝、莱赛尔、亚麻、黄麻和大麻。结果表明,在外力为3KN、时间为10 min、温度为200℃时,人造丝的最大冲击强度为32.3144KJ/m2;粘胶在外力为5KN、温度为180℃、时间为15 min时的最大冲击强度为30.7716KJ/m2。莱赛尔纤维的最大冲击强度29.3869 kj / m2的运行时间10分钟,冲击力3 kn和200°C的温度,亚麻的最大强度35.8735 kj / m2的运行时间10分钟,冲击力3 kn 200°C的温度,黄麻的最大强度13.2075 kj / m2的运行时间为8分钟,3 kn的冲击力和210°C的温度,和麻强度12.7050 kj / m2的运行时间10分钟,冲击力3 kn和200°C的温度。收稿日期:2023年4月29日修稿日期:2023年5月28日收稿日期:2023年6月29日
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引用次数: 0
ADDRESSING THE DRAWBACKS OF PEROVSKITE PHOTOVOLTAICS TO IMPROVE SOLAR ENERGY TECHNOLOGIES: A REVIEW 解决钙钛矿光伏电池的缺点以改进太阳能技术:综述
Andrew Setley, C. P. Wong
As reliable sources of clean energy become increasingly necessary in modern society, research into photovoltaics as an alternative to conventional fossil fuels has accelerated considerably. Perovskite-based solar cells hold particular promise as a cheaper, easier-to-manufacture alternative to traditional silicon-based devices. In this review paper, perovskites are presented as a class of materials while their common processing methods are analyzed in the context of advancing photovoltaic manufacturing techniques. Their advantages over traditional silicon-based photovoltaics are discussed, and these advantages are contrasted with the current issues facing the wide-scale implementation of the materials in modern devices, particularly, in regards to their chemical stability and environmental/health concerns. Finally, several potential avenues of improvement are offered, including changes to the architecture of the devices and the addition of small-molecule dopants. Received: July 31, 2023Accepted: September 9, 2023
随着可靠的清洁能源在现代社会变得越来越必要,对光伏发电作为传统化石燃料替代品的研究已经大大加快。钙钛矿太阳能电池作为一种更便宜、更容易制造的传统硅基设备的替代品,具有特殊的前景。本文介绍了钙钛矿作为一类材料,并在先进的光伏制造技术的背景下分析了钙钛矿的常见加工方法。讨论了它们相对于传统硅基光伏电池的优势,并将这些优势与当前在现代设备中大规模应用这些材料所面临的问题进行了对比,特别是在化学稳定性和环境/健康问题方面。最后,提出了几种潜在的改进途径,包括改变器件的结构和添加小分子掺杂剂。收稿日期:2023年7月31日。收稿日期:2023年9月9日
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引用次数: 0
ELECTRONIC STRUCTURES OF MnGe 锰锗的电子结构
T. Jeong
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引用次数: 0
THEORETICAL AND NUMERICAL ANALYSES OF SHORT NATURAL FIBERS ORIENTATION IN THERMOPLASTIC MATRIX 天然短纤维在热塑性基体中取向的理论与数值分析
I. Modhaffar
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引用次数: 0
SELECTED RESEARCH BRIEFS ON THE FABRICATION OF VALUE ADDED COMPOSITES USING RECYCLED TEXTILE WASTE AS REINFORCEMENT MATERIAL 选择了利用回收的纺织废料作为增强材料制造增值复合材料的研究简报
R. Parachuru
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引用次数: 0
NEW EXPERIMENTAL ANALYTICAL APPROACH TO STUDY THE EFFECTS OF TEMPERATURE AND IRRADIANCE ON THE PHYSICAL PARAMETERS OF THE SOLAR PHOTOVOLTAIC MODULE IN SUNNY AND TEMPERATE ZONES 研究温度和辐照度对阳光和温带地区太阳能光伏组件物理参数影响的新实验分析方法
Cheikh Touré, P. Sow, S. Mbodji
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引用次数: 0
PURE AXIAL SHEAR OF A PSEUDO-ELASTIC LONG CIRCULAR CYLINDRICAL TUBE 拟弹性长圆柱管的纯轴向剪切
Rajesh Kumar
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引用次数: 0
SELECT HIGHLIGHTS OF RECENT RESEARCH ON TURNING TEXTILE WASTE AND RECYCLED TEXTILES INTO BIODIESEL 选择最近关于将纺织废料和回收纺织品转化为生物柴油的研究亮点
R. Parachuru
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引用次数: 0
URBAN SOLID WASTE MANAGEMENT IN DINAJPUR CITY: A SOURCE OF RENEWABLE ENERGY 迪纳杰普尔城市固体废物管理:可再生能源的来源
Md. Abdus Sattar, A. Hossain, Mahananda Roy, S. Sultana, M. Alamin, S. Sana
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引用次数: 0
HAMILTONIAN SYMPLECTIC FORMALISM FOR STRUCTURAL SYSTEMS 结构系统的哈密顿辛形式论
M. Arici
{"title":"HAMILTONIAN SYMPLECTIC FORMALISM FOR STRUCTURAL SYSTEMS","authors":"M. Arici","doi":"10.17654/0975044422001","DOIUrl":"https://doi.org/10.17654/0975044422001","url":null,"abstract":"","PeriodicalId":23734,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81842546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering
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