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Structure and Mechanical Properties of High-Density Polyethylene Composites Reinforced with Glassy Carbon

机译:用玻璃碳加固的高密度聚乙烯复合材料的结构和力学性能

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摘要

In this paper, we investigated theimpact of glassy carbon (GC) reinforcement oncrystal structure and the mechanical performance of high-density polyethylene (HDPE). We made composite samples by mixing HDPE granules with powder in ethanol followed bymelt mixing in a laboratory extruder. Along with the investigated composite, we also prepared samples with carbon nanotubes (CNT), graphene (GNP) and graphite (Gr) to compare GC impact with already used carbon fillers. To evaluate crystal structure and crystallinity, we used X-ray diffraction (XRD) and differential scanning calorimetry (DSC). We supported the XRD results with a residual stress analysis (RSA) according to the EN15305 standard. Analysis showed that reinforcing with GC leads to significant crystallite size reduction and low residual stress values. We evaluated the mechanical properties of composites with hardness and tensile testing. The addition of glassy carbon results inincreased mechanical strength incomposites with CNT and GNP.
机译:在本文中,我们研究了玻米碳(GC)增强oncrystal结构的杀伤和高密度聚乙烯(HDPE)的机械性能。我们通过将HDPE颗粒与乙醇中的粉末混合,然后在实验室挤出机中混合使用复合样品。随着所研究的复合材料,我们还使用碳纳米管(CNT),石墨烯(GNP)和石墨(GR)制备样品,以将GC冲击与已经使用的碳填充物进行比较。为了评估晶体结构和结晶度,我们使用X射线衍射(XRD)和差示扫描量热法(DSC)。我们支持根据EN15305标准的残余应力分析(RSA)的XRD结果。分析表明,用GC加固导致显着的微晶尺寸减小和低残留应力值。我们评估了具有硬度和拉伸测试的复合材料的机械性能。添加玻璃碳,导致具有CNT和GNP的机械强度孔隙。

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