论文标题
石墨烯类型的碳纳米管/石墨烯纳米片的依赖性聚氨酯杂化纳米复合材料：微机械建模和机械性能
Graphene type dependence of carbon nanotubes/graphene nanoplatelets polyurethane hybrid nanocomposites: Micromechanical modeling and mechanical properties
论文作者
论文摘要
通过拉伸强度，硬度，硬度强度和修改后的halpin-tsai平等，研究了具有多壁碳纳米管（MWCNT）和石墨烯纳米纤维素（GNP）的多壁纳米复合泡沫（MWCNT）和石墨烯纳米纤维素（GNPS）的微型模型和机械性能。使用三种类型的石墨烯，具有变化的片状大小和特定表面积（SSA）（SSA），用于研究石墨烯类型对MWCNT/GNP混合纳米纤维的协同作用的影响。结果表明，MWCNT和GNP-1.5（1：1）之间具有显着的协同作用，薄片尺寸为1.5μm，SSA较高（750 m^2/g），PU的张力强度提高了43％，而PU/MWCNT则为19％，而PU/MWCNT则为19％，而PU/GNP-1.5 nan n.25％nan nan nan nan nan nan nan nan nan nan nan nan nan nan and nan。使用晶胞建模成功预测了协同作用，其中计算出的数据与实验结果一致。
Micromechanical modeling and mechanical properties of polyurethane (PU) hybrid nanocomposite foams with multi-walled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) were investigated by mean of tensile strength, hardness, impact strength and modified Halpin-Tsai equation. Three types of graphene, with varied flake sizes and specific surface areas (SSA), were utilized to study the effect of graphene types on the synergistic effect of MWCNT/GNP hybrid nanofillers. The results indicate a remarkable synergetic effect between MWCNTs and GNP-1.5 (1:1) with a flake size of 1.5 μm and a higher SSA (750 m^2/g), which tensile strength of PU was improved by 43% as compared to 19% for PU/MWCNTs and 17% for PU/GNP-1.5 at 0.25 wt% nanofiller loadings. The synergy was successfully predicted using unit cell modeling, in which the calculated data agrees with the experimental results.
