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Potential use of industrial waste-red mud in developing hybrid composites: A Waste management approach
Journal of Cleaner Production ( IF 11.1 ) Pub Date : 2020-09-18 , DOI: 10.1016/j.jclepro.2020.124278
S. Vigneshwaran , M. Uthayakumar , V. Arumugaprabu

Waste reduction is one of the main aspects of cleaner production. Increasing red mud generation around the globe is creating a thread to the environment. Red mud has an attractive mineralogical composition which makes them ideal for the manufacture of composites. The current paper investigates the feasibility of utilizing red mud in the polymer matrix with coconut sheath (CS) fiber. Twelve distinct red mud composites were fabricated with silane-treated (AST), alkaline-treated (AT) and untreated (UT) CS reinforcement, as well with a differing weight percentage of red mud and investigated the mechanical properties and water and chemical resistance behaviour. AST-CS fiber composite reinforced by 20 wt.% red mud displayed superior tensile, flexural and impact strength. Positive interaction of red mud with treated CS reduced the formation of voids. The chemical and water resistance test revealed the composites' ability to withstand water and chemical attack. The effective production of polymer composites using red mud simultaneously mitigates red mud storage and pollution issues, thereby promoting a sustainable environment and an economic solution for the disposal of red mud.



中文翻译:

工业废红泥在开发混合复合材料中的潜在用途:废物管理方法

减少废物是清洁生产的主要方面之一。全球范围内越来越多的赤泥产生正在为环境创造一条线索。赤泥具有吸引人的矿物学成分,使其成为制造复合材料的理想选择。目前的论文研究了在带有椰子皮(CS)纤维的聚合物基体中利用赤泥的可行性。用硅烷处理(AST),碱处理(AT)和未处理(UT)CS增强材料以及不同重量百分比的赤泥制备了十二种不同的赤泥复合材料,并研究了其机械性能以及耐水和耐化学性。由20 wt。%的赤泥增强的AST-CS纤维复合材料显示出优异的拉伸,弯曲和冲击强度。赤泥与已处理CS的正相互作用减少了空隙的形成。耐化学性和耐水性测试显示了复合材料的耐水和化学侵蚀能力。使用赤泥有效地生产聚合物复合材料可同时减轻赤泥的储存和污染问题,从而促进可持续的环境和处置赤泥的经济解决方案。

更新日期:2020-09-20
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