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Mechanical analysis of functionalized MWCNTs reinforced biresin CR82 epoxy nanocomposite materials
Journal of Composite Materials ( IF 2.3 ) Pub Date : 2020-07-28 , DOI: 10.1177/0021998320946478
Alaa Alawy 1 , Mohamed Abdlghany 1 , Tamer Z Wafy 2 , Ahmed Hassan 1
Affiliation  

Carbon nanotubes are viewed as one of the stiffest and strongest designing materials accessible, having high ultimate strength and modulus of elasticity more than any conventional materials. A new epoxy resin material called (Biresin CR82) was utilized as a matrix in manufacturing nanocomposites reinforced by carboxylic Multiwall carbon nanotubes (MWCNTs). A novel experimental setup was carried out with specified steps under certain conditions to achieve suitable mixing techniques for the different content of MWCNTs, using ultrasonication technology as the main mixing technique. This paper concerned about the mechanical properties of the generating MWCNT/epoxy composite materials with different loading ratios. The main objective was about how to get maximum benefit from low weight percentage of MWCNTs dispersed homogeneously in the matrix. Therefore, mechanical tests were carried out to determine the effect of nano-particles on the quality and strength of the composites. The mechanical test results demonstrated the highest enhancement at 0.2 wt. % of COOH-MWCNTs in the ultimate strength, elastic modulus, and impact energy by 41%, 22%, and 45% respectively. In addition to improving the shore hardness values at D scale with an increase in the weight percentage of MWCNTs, and the highest value showed at 0.2 wt. %. The Halpin Tsai equations were utilized to obtain theoretical modeling which gives a great indication with the tensile experimental results acquired. The microstructure of the fracture tensile sample was assigned by scanning electron microscopy.

中文翻译:

功能化多壁碳纳米管增强双树脂CR82环氧纳米复合材料的力学分析

碳纳米管被视为最坚硬和最强的设计材料之一,具有比任何传统材料更高的极限强度和弹性模量。一种名为 (Biresin CR82) 的新型环氧树脂材料被用作制造由羧基多壁碳纳米管 (MWCNT) 增强的纳米复合材料的基质。使用超声波技术作为主要混合技术,在特定条件下以特定步骤进行了新的实验装置,以针对不同含量的多壁碳纳米管实现合适的混合技术。本文关注的是不同负载比生成的多壁碳纳米管/环氧树脂复合材料的力学性能。主要目标是关于如何从均匀分散在基质中的低重量百分比的 MWCNT 中获得最大收益。因此,进行了机械测试以确定纳米颗粒对复合材料的质量和强度的影响。机械测试结果表明在 0.2 重量%时具有最高的增强。COOH-MWCNTs 的极限强度、弹性模量和冲击能量的百分比分别提高了 41%、22% 和 45%。除了随着 MWCNTs 重量百分比的增加而提高 D 级肖氏硬度值外,最高值显示在 0.2 wt. %。Halpin Tsai 方程被用来获得理论模型,这对获得的拉伸实验结果给出了很好的指示。通过扫描电子显微镜确定断裂拉伸样品的微观结构。机械测试结果表明在 0.2 重量%时具有最高的增强。COOH-MWCNTs 的极限强度、弹性模量和冲击能量的百分比分别提高了 41%、22% 和 45%。除了随着 MWCNTs 重量百分比的增加而提高 D 级肖氏硬度值外,最高值显示在 0.2 wt. %。Halpin Tsai 方程被用来获得理论模型,这对获得的拉伸实验结果给出了很好的指示。断裂拉伸试样的微观结构通过扫描电子显微镜进行鉴定。机械测试结果表明在 0.2 重量%时具有最高的增强。COOH-MWCNTs 的极限强度、弹性模量和冲击能量的百分比分别提高了 41%、22% 和 45%。除了随着 MWCNTs 重量百分比的增加而提高 D 级肖氏硬度值外,最高值显示在 0.2 wt. %。Halpin Tsai 方程被用来获得理论模型,这对获得的拉伸实验结果给出了很好的指示。断裂拉伸试样的微观结构通过扫描电子显微镜进行鉴定。除了随着 MWCNTs 重量百分比的增加而提高 D 级肖氏硬度值外,最高值显示在 0.2 wt. %。Halpin Tsai 方程被用来获得理论模型,这对获得的拉伸实验结果给出了很好的指示。断裂拉伸试样的微观结构通过扫描电子显微镜进行鉴定。除了随着 MWCNTs 重量百分比的增加而提高 D 级肖氏硬度值外,最高值显示在 0.2 wt. %。Halpin Tsai 方程被用来获得理论模型,这对获得的拉伸实验结果给出了很好的指示。通过扫描电子显微镜确定断裂拉伸样品的微观结构。
更新日期:2020-07-28
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