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首页> 美国卫生研究院文献>Polymers >The Potential of Agglomerated Cork for Sandwich Structures: A Systematic Investigation of Physical Thermal and Mechanical Properties
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The Potential of Agglomerated Cork for Sandwich Structures: A Systematic Investigation of Physical Thermal and Mechanical Properties

机译：聚结软木用于三明治结构的潜力：物理热和机械性能的系统研究

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摘要

Considering the major role played by sandwich structures in many fields where high stiffness-to-weight ratio is required, the selection of a suitable core material is of paramount importance. In order to face the environmental problems related to waste disposal, the selection of an eco-friendly core material is now included in the design criteria of sandwich structures. Agglomerated cork is recognized as a good solution that combines satisfactory mechanical performances and eco-sustainability. Many research studies individually addressed cork’s morphological, thermal, and mechanical features without providing a comprehensive overview of the relationships that exist between them. In this work, the investigation of the peculiar cork morphology allowed learning more about its good insulation capacity and its impressive recovery capability. The use of dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA) clarified the influence of temperature on both flexural and compressive performances. The effect of testing parameters such as temperature and speed on agglomerated cork properties was validated through statistical analysis. Moreover, to highlight agglomerated cork advantages and drawbacks, the work provides also a comparison with more traditional polyvinylchloride (PVC) foams commonly used in industrial applications.
机译：考虑到夹层结构在许多要求高刚度重量比的领域中起着主要作用，因此选择合适的芯材至关重要。为了解决与废物处理相关的环境问题，夹心结构的设计标准中现已包括对环保型芯材的选择。凝聚软木塞是公认的良好解决方案，具有令人满意的机械性能和生态可持续性。许多研究单独针对软木的形态，热和机械特征进行了研究，而没有提供它们之间存在的关系的全面概述。在这项工作中，对软木特殊形态的研究使我们可以了解更多有关其良好的隔热性能和令人印象深刻的恢复能力的信息。动态力学分析（DMA）和热重分析（TGA）的使用阐明了温度对弯曲和压缩性能的影响。通过统计分析验证了测试参数（如温度和速度）对软木附聚物性能的影响。此外，为突出附聚软木塞的优缺点，该工作还与工业应用中通常使用的更传统的聚氯乙烯（PVC）泡沫进行了比较。

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