Abstract：
We present a new method for investigating the oxidation and emission behavior of air-permeable materials. Employing this method, a differentiated statement can be made about the extent to which critical volatile organic compounds (VOCs) such as formaldehyde, acetaldehyde, and acrolein are contained in the material as impurities or formed by thermo-oxidative degradation of the polymer matrix in the use phase. The parameters affecting methods of VOC analysis are reviewed and considered for the developed method. The molecular mechanisms of VOC formation are discussed. Toxicological implications of the reaction kinetics are put into context with international guidelines and threshold levels. This new method enables manufacturers of cellular materials not only to determine the oxidative stability of their products but also to optimize them specifically for higher durability. ENVIRONMENTAL IMPLICATION: Cellular materials are ubiquitous in the technosphere. They play a crucial role in various microenvironments such as automotive interiors, building insulation, and cushioning. These materials are susceptible to oxidative breakdown, leading to the release of formaldehyde, acetaldehyde, and acrolein. The ecotoxicological profiles of these compounds necessitate monitoring and regulation. The absence of reproducible and reliable analytical methods restricts research and development aimed at risk assessment and mitigation. This work significantly enhances the toolbox for optimizing the oxidative stability of any open-cell cellular material and evaluating these materials in terms of their temperature-dependent oxidation and emission behavior.
摘要：
我们提出了一种研究透气材料氧化和排放行为的新方法。采用这种方法，关于甲醛等关键挥发性有机化合物(VOC)的程度，乙醛,和丙烯醛作为杂质包含在材料中或通过聚合物基质在使用阶段的热氧化降解形成。对影响VOC分析方法的参数进行了综述，并考虑了所开发的方法。讨论了VOC形成的分子机制。反应动力学的毒理学含义与国际准则和阈值水平有关。这种新方法使多孔材料的制造商不仅能够确定其产品的氧化稳定性，而且能够优化它们以获得更高的耐久性。环境含义：细胞材料在技术圈中无处不在。它们在汽车内饰等各种微环境中发挥着至关重要的作用，建筑保温,和缓冲。这些材料容易氧化分解，导致甲醛的释放，乙醛,和丙烯醛.这些化合物的生态毒理学特征需要监测和调节。缺乏可重复和可靠的分析方法限制了旨在风险评估和缓解的研究和开发。这项工作显着增强了优化任何开孔多孔材料的氧化稳定性并根据其温度依赖性氧化和排放行为评估这些材料的工具箱。
