Improved mechanical and water absorption properties of epoxy-bamboo long natural fibres composites by eco-friendly Na2CO3 treatment

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-01-25 DOI:10.1080/14658011.2022.2030152

M. A. Abdul Karim, D. Tahir, K. I. Khan, A. Hussain, E. Haq, Muhammad Sohail Anwar Malik

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引用次数: 6

Abstract

ABSTRACT Epoxy-bamboo long natural fibres composites were prepared by hand lay-up method to study the influence of fibre’s treatment on their characteristics. SEM showed increased surface roughness due to the removal of amorphous compounds from the treated fibre as confirmed by the disappearance of certain peaks in FTIR spectroscopy. Resultantly, ∼52% increase in crystallinity was observed by XRD analysis. TGA results also showed the effectiveness of the treatment as mass loss for treated fibres was ∼15% lesser than the untreated fibres. Moreover, thermogravimetric analysis of composites showed highest mass loss in untreated fibres composites and lowest in neat epoxy. The DSC-DTA curves indicated an early start of initiation temperature in treated fibre composite. Tension tests showed ∼12% and ~16% increase in tensile strength and modulus respectively for treated fibres composite due to increased interfacial strength caused by fibre treatment. Treatment also resulted in decreased impact energy and water absorption level.

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环保型Na2CO3处理改善环氧-竹天然长纤维复合材料的力学性能和吸水性能

摘要采用手工铺层法制备环氧-竹天然长纤维复合材料，研究纤维处理对其性能的影响。扫描电镜显示，由于从处理过的纤维中去除非晶化合物，表面粗糙度增加，FTIR光谱中某些峰的消失证实了这一点。结果，XRD分析发现结晶度提高了~ 52%。TGA结果还显示，处理后的纤维的质量损失比未处理的纤维少约15%。此外，复合材料的热重分析表明，未经处理的纤维复合材料的质量损失最大，而纯环氧树脂的质量损失最小。DSC-DTA曲线表明，处理后的纤维复合材料起始温度开始较早。拉伸试验表明，由于纤维处理增加了界面强度，处理后的纤维复合材料的拉伸强度和模量分别增加了~ 12%和~16%。处理还降低了冲击能量和吸水率。

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.