摘要
目的研究泡沫铝孔径(泡沫铝内部孢孔直径)对泡沫铝压缩性能的影响,并对泡沫铝、聚氨酯(PU)、泡沫铝-聚氨酯复合材料的压缩性能和吸能性能进行对比分析。分析泡沫铝孔隙率、聚氨酯含量对泡沫铝-聚氨酯复合材料压缩性能和吸能性能的影响规律。方法对试样进行准静态压缩试验。结果通过准静态压缩试验,分别得出了对应的应力-应变曲线,并通过应力-应变曲线推导出吸能-应变曲线。结论从试验所得的应力-应变曲线和吸能-应变曲线可知,泡沫铝压缩性能、吸能性能随着泡沫铝孔径的增加而变好,且在泡沫铝中加入聚氨酯形成泡沫铝-聚氨酯复合材料后,其压缩性能、吸能性能相对于单纯泡沫铝、聚氨酯有很大提升。当泡沫铝孔隙率一定时,泡沫铝-聚氨酯复合材料的压缩性能、吸能性能会随着聚氨酯含量的增加而变好。当聚氨酯含量一定时,泡沫铝-聚氨酯复合材料的压缩性能、吸能性能会随着泡沫铝孔隙率的减小而变好。
The work aims to study the effect of aluminum foam pore size（foam diameter inside aluminum foam） on the compression properties of aluminum foam, compare and analyze the compression and energy-absorbing properties of aluminum foam, polyurethane（PU） and aluminum foam-polyurethane composites, and analyze the influence of aluminum foam porosity and polyurethane content on the compression and energy-absorbing properties of aluminum foam-polyurethane composites. The sample was subject to quasi-static compression experiments. Through si-static compression experiments, the corresponding stress-strain curves were respectively obtained, and the energy absorption-strain curve was derived from the stress-strain curve. The stress-strain curves and energy absorption-strain curves obtained from the experiments show that, the compression and energy-absorbing properties of aluminum foam increase with the increase of the pore size of aluminum foam; and after the foam aluminum foam is added with polyurethane to form the aluminum foam-polyurethane composites, the compression and energy-absorbing properties are greatly improved compared to those of the simple aluminum foam and polyurethane. When the porosity of aluminum foam is constant, the compression and energy-absorbing properties of aluminum foam-polyurethane composites increase with the increase of thane content. When the polyurethane content is constant, the compression and energy-absorbing properties of aluminum foam-polyurethane composites will increase with the decrease of porosity of aluminum foam.
作者
张伟
齐明思
赵志芳
贺高锋
薛洋洋
强志鹏
ZHANG Wei;QI Ming-si;ZHAO Zhi-fang;HE Gao-feng;XUE Yang-yang;QIANG Zhi-peng(North University of China, Taiyuan 030051, China)
出处
《包装工程》
CAS
北大核心
2018年第17期6-11,共6页
Packaging Engineering
基金
山西省自然科学基金(201601D102035
2015011063)
关键词
泡沫铝-聚氨酯
复合材料
压缩性能
吸能特性
aluminum foam-polyurethane
composites
compression property
energy-absorbing property
