张伟,齐明思,赵志芳,孙起帆.泡沫铝-聚氨酯复合材料制备及力学性能分析[J].包装工程,2017,38(21):35-40.
ZHANG Wei,QI Ming-si,ZHAO Zhi-fang,SUN Qi-fan.Preparation and Mechanical Property Analysis of Aluminum Foam-Polyurethane Composites[J].Packaging Engineering,2017,38(21):35-40. |
| 泡沫铝-聚氨酯复合材料制备及力学性能分析 |
| Preparation and Mechanical Property Analysis of Aluminum Foam-Polyurethane Composites |
| 投稿时间：2017-05-13 修订日期：2017-11-10 |
| DOI： |
| 中文关键词: 泡沫铝-聚氨酯 准静态压缩实验 复合材料 力学性能 |
| 英文关键词: aluminum foam-polyurethane quasi-static compression test composites mechanical properties |
| 基金项目:山西省自然科学基金（201601D102035，2015011063） |
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| 中文摘要: |
| 目的 研究泡沫铝相对密度、聚氨酯含量、聚氨酯硬段质量分数（硬段在热塑性聚氨酯弹性体橡胶中所占的质量分数）对泡沫铝-聚氨酯复合材料力学性能的影响。方法 自行制备泡沫铝-聚氨酯复合材料，对制备的泡沫铝-聚氨酯样品进行准静态压缩实验。结果 通过准静态压缩实验，得出了不同泡沫铝的相对密度、聚氨酯含量、聚氨酯硬段质量分数分别对应的应力应变曲线。当聚氨酯硬段质量分数和聚氨酯含量一定时，泡沫铝相对密度从5.4%提升到6.1%，泡沫铝-聚氨酯屈服强度增加了12.8%，流变应力增加了29.8%。当聚氨酯硬段质量分数和泡沫铝相对密度一定时，聚氨酯含量从9.21 g提升到13.19 g，泡沫铝-聚氨酯屈服强度增加了32.6%，流变应力增加了10.9%。当聚氨酯含量和泡沫铝相对密度一定时，聚氨酯硬段质量分数从15%提升到25%，泡沫铝-聚氨酯屈服强度增加了95%，流变应力增加了55.5%。结论 不同的泡沫铝相对密度、聚氨酯含量、聚氨酯硬段质量分数与泡沫铝-聚氨酯复合材料的力学性能成正相关的关系，泡沫铝相对密度、聚氨酯含量、聚氨酯硬段质量分数与泡沫铝-聚氨酯复合材料的缓冲吸能特性成正相关的关系。 |
| 英文摘要: |
| The work aims to study the effect of aluminum foam’s relative density, polyurethane content and polyurethane mass fraction of the hard segment (the mass fraction of hard segment occupying the thermoplastic polyurethane elastomer rubber) on the mechanical properties of aluminum foam-polyurethane composites. The aluminum foam-polyurethane composites were self-prepared. The quasi-static compression experiments were carried out on the aluminum foam-polyurethane samples prepared. Through the quasi-static compression experiment, the stress-strain curves respectively corresponding to the relative density, polyurethane content and polyurethane mass fraction of the hard segment of different aluminum foams were obtained. From the analysis, the relative density of aluminum foam was increased from 5.4% to 6.1%, the yield strength of aluminum foam-polyurethane was increased by 12.8% and the flow stress was increased by 29.8% when the polyurethane mass fraction of the hard segment and the polyurethane content were constant. The polyurethane content was increased from 9.21 g to 13.19 g, the aluminum foam-polyurethane yield strength was increased by 32.6% and the flow stress was increased by 10.9% when the polyurethane mass fraction of the hard segment and the relative density of the aluminum foam were constant. Based on the stress-strain curves in the results, the relative density of different aluminum foams, polyurethane content and polyurethane mass fraction of the hard segment are positively correlated with the mechanical properties of aluminum foam-polyurethane composites. The relative density of aluminum foam, the polyurethane content, the polyurethane mass fraction of the hard segment and the buffer energy-absorption characteristics of aluminum foam-polyurethane composites are positively correlated. |
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