亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Extraction and characterization of a novel tropical fibre Megaphrynium macrostachyum as a biosourced reinforcement for gypsum-based biocomposites

材料科学 复合材料 耐化学性 极限抗拉强度 抗弯强度 纤维素 脱胶 吸水率 次氯酸钠 石膏 韧皮纤维 热稳定性 化学成分 氢氧化钠 化学工程 制浆造纸工业 化学 有机化学 工程类
作者
Achille Désiré Omgba Betené,Claude S Batoum,Remy L Ndoumou Belinga,Fabien Betené Ebanda,Jean Gaston Tamba,Atangana Ateba,Roger Moukené,Gilbert K Tcheudjo,André Nyembè
出处
期刊:Journal of Composite Materials [SAGE Publishing]
卷期号:57 (16): 2543-2562 被引量:8
标识
DOI:10.1177/00219983231174682
摘要

Identifying the potential of new bast fibres is a solution for diversifying biobased reinforcements and replacing environmentally harmful synthetic fibres. In this study, fibres were extracted from Megaphrynium macrostachyum stems by biological and chemical retting. The chemical fibres were bleached with a 2.5wt% sodium hypochlorite (NaClO) solution. The biological, chemical and bleached fibres were analysed from a chemical, morphological, physical, mechanical and thermal point of view. The possibility of using these fibres as reinforcement in gypsum-based biocomposites for construction was analysed by three-point bending tests. Chemical analysis revealed a cellulose content of more than 56 wt% within the usual range (50-85 wt%) for reinforcing fibres. SEM images showed that bleaching cleans the surface of the fibres. Physical analysis by gravimetric analysis showed that the bleached fibre had the lowest density (1.01 g.cm −3 ), fineness (5.2tex) and water absorption (64wt%). In addition, the highest thermal stability (237°C) was obtained for the chemical fibre. Young’s modulus and tensile strength, evaluated according to ASTM D3822-07, were dispersed and depended on the fibre diameter, and the highest values were obtained for the chemical fibre (6.4 GPa and 251 MPa). In contrast, gypsum composites with a volume fraction of 1.5% bleached chemical fibre had the highest stiffness (258 MPa) and flexural strength (5 MPa). The results obtained for each fibre type are relatively close to those of other fibres in the literature, indicating that all three fibre types studied can be used as alternative raw materials for the manufacture of gypsum-based biocomposites.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
科研通AI2S应助科研通管家采纳,获得10
3秒前
yx_cheng应助may采纳,获得10
3秒前
3秒前
14秒前
huangwensou发布了新的文献求助10
20秒前
量子星尘发布了新的文献求助10
34秒前
35秒前
36秒前
科研花完成签到 ,获得积分10
37秒前
ceeray23发布了新的文献求助20
40秒前
1分钟前
量子星尘发布了新的文献求助10
1分钟前
tlh完成签到 ,获得积分10
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
2分钟前
may完成签到,获得积分10
2分钟前
临风怳兮浩歌完成签到,获得积分10
2分钟前
2分钟前
量子星尘发布了新的文献求助10
3分钟前
3分钟前
4分钟前
Orange应助曹燃采纳,获得10
4分钟前
4分钟前
4分钟前
4分钟前
量子星尘发布了新的文献求助10
4分钟前
月光奏鸣曲完成签到,获得积分10
4分钟前
无花果应助禹山河采纳,获得10
5分钟前
激动的似狮完成签到,获得积分10
5分钟前
gszy1975完成签到,获得积分10
5分钟前
科研通AI2S应助科研通管家采纳,获得10
6分钟前
哭泣海雪完成签到 ,获得积分10
6分钟前
6分钟前
免我蹉跎苦完成签到,获得积分20
6分钟前
6分钟前
机灵水卉完成签到 ,获得积分10
6分钟前
量子星尘发布了新的文献求助10
6分钟前
6分钟前
6分钟前
7分钟前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind (Sixth Edition) 1000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3960125
求助须知:如何正确求助?哪些是违规求助? 3506271
关于积分的说明 11128619
捐赠科研通 3238289
什么是DOI,文献DOI怎么找? 1789684
邀请新用户注册赠送积分活动 871846
科研通“疑难数据库(出版商)”最低求助积分说明 803069