Liu Dong, Zou Longqing, Chang Qianqian, Xiao Tianyuan
School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, China.
School of Mechanical and Electronic Engineering, Qiqihar University, Qiqihar, China.
Des Monomers Polym. 2021 Jul 14;24(1):208-215. doi: 10.1080/15685551.2021.1954340. eCollection 2021.
Rigid polyurethane foam (RPUF) as a filling material that can enhance the crashworthiness of thin-walled tubes. GO-HGMS hybrid was prepared by solution blending of graphene oxide (GO) and hollow glass microspheres (HGMS). The effect of the composite on the compression properties of RPUF was investigated. The GO-HGMS hybrid was characterized by fourier transform infrared spectroscopy (FTIR), x-ray diffraction(XRD), and scanning electron microscopy (SEM). The compression test and microstructure results show that the best compression performance and the largest apparent density of the composite foam were obtained when the hybrid content was 4 wt %. In addition, the compression test results of empty tubes (ET) and foam-filled tubes (FFT) under lateral load indicate that the combination of lightweight foamed material and thin-walled tube improves the stability of thin-walled tube deformation and the ability of the structure to resist deformation. GO-HGMS/RPUF as the filling material of thin-walled tube structure greatly improves the bearing capacity and energy absorption level of ET.
硬质聚氨酯泡沫（RPUF）作为一种填充材料，能够增强薄壁管的抗撞性。氧化石墨烯（GO）和空心玻璃微珠（HGMS）通过溶液共混制备了GO-HGMS杂化物。研究了该复合材料对RPUF压缩性能的影响。采用傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）和扫描电子显微镜（SEM）对GO-HGMS杂化物进行了表征。压缩试验和微观结构结果表明，当杂化物含量为4 wt%时，复合泡沫具有最佳的压缩性能和最大的表观密度。此外，空管（ET）和泡沫填充管（FFT）在横向载荷下的压缩试验结果表明，轻质泡沫材料与薄壁管的组合提高了薄壁管变形的稳定性和结构抵抗变形的能力。GO-HGMS/RPUF作为薄壁管结构的填充材料，大大提高了ET的承载能力和能量吸收水平。
