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Effect of graphite particulate on mechanical characterization of hybrid polymer composites
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-04-14 , DOI: 10.1177/15280837211010670
BN Dhanunjayarao 1, 2 , Usha Kiran Sanivada 3 , NV Swamy Naidu 2 , Raul Fangueiro 3, 4
Affiliation  

Quest for producing lightweight and biodegradable materials has encouraged researchers to replace synthetic fibers with natural fibers. Hence a study is made to investigate the effects of introducing secondary reinforcement (natural fibers), stacking sequence, and addition of graphite particles on the mechanical characteristics and water uptakes along with diffusivity of hybrid (glass\jute) composites. Different weight fractions of graphite particulates are incorporated into the epoxy to produce different samples having 4 plies for each sample by hand layup vacuum bagging method. The obtained specimens are subjected to various mechanical tests, water absorption tests as per the ASTM standards, and optical microscopy was used to study the fracture morphology of the samples. The results displayed that the properties are deteriorated a little with the addition of secondary reinforcement, however they have improved with the addition of graphite. E-Glass as skin layer and treated jute as core layer composite exhibits ameliorate tensile strength (201.5 MPa), compression strength (515.12 MPa), flexural strength (106.9 MPa), hardness (25 BHN). However highest impact energy of 26 J is recorded for the sample with jute as skin layer and E-Glass as the core layer. Water absorption tests revealed that the addition of graphite has reduced the water absorption in the hybrid samples.



中文翻译:

石墨颗粒对杂化聚合物复合材料力学性能的影响

对生产轻质和可生物降解材料的追求鼓励研究人员用天然纤维代替合成纤维。因此,进行了一项研究来研究引入二次增强(天然纤维),堆积顺序以及添加石墨颗粒对混合(玻璃\黄麻)复合材料的机械特性和吸水率以及扩散率的影响。将不同重量分数的石墨颗粒掺入到环氧树脂中,以通过手压式真空装袋法生产每个样品具有4层的不同样品。对获得的样品进行各种机械测试,按照ASTM标准进行的吸水率测试,并使用光学显微镜研究样品的断裂形态。结果表明,添加二次增强材料后,性能略有下降,但是添加石墨后,性能有所改善。作为表层的电子玻璃和经处理的黄麻作为芯层复合材料表现出改善的抗张强度(201.5 MPa),抗压强度(515.12 MPa),抗弯强度(106.9 MPa)和硬度(25 BHN)。但是,对于以黄麻为表皮层和以E-玻璃为芯层的样品,记录到的最大冲击能量为26J。吸水率测试表明,添加石墨降低了混合样品的吸水率。弯曲强度(106.9 MPa),硬度(25 BHN)。但是,对于以黄麻为表皮层,以E-玻璃为芯层的样品,记录的最高冲击能量为26J。吸水率测试表明,添加石墨降低了混合样品的吸水率。弯曲强度(106.9 MPa),硬度(25 BHN)。但是,对于以黄麻为表皮层和以E-玻璃为芯层的样品,记录到的最大冲击能量为26J。吸水率测试表明,添加石墨降低了混合样品的吸水率。

更新日期:2021-04-15
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