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固液过滤过程中过滤介质力学性能的实验表征

Experimental Characterization of the Mechanical Properties of Filter Media in Solid-Liquid Filtration Processes.

作者信息

Puderbach Vanessa, Kirsch Ralf, Antonyuk Sergiy

机构信息

Institute of Particle Process Engineering, University of Kaiserslautern-Landau (RPTU), Gottlieb-Daimler-Strasse, 67663 Kaiserslautern, Germany.

Fraunhofer Institute for Industrial Mathematics (ITWM), Fraunhofer-Platz 1, 67663 Kaiserslautern, Germany.

出版信息

Materials (Basel). 2024 Sep 18;17(18):4578. doi: 10.3390/ma17184578.

DOI:10.3390/ma17184578
PMID:39336319
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11433358/
Abstract

Nonwoven filter media are used in many industrial applications due to their high filtration efficiency and great variety of compositions and structures which can be produced by different processes. During filter operation in the separation process, the fluid flow exerts forces on the filter medium which leads to its deformation, and in extreme cases damage. In order to design or select a reliable filter medium for a given application, it is essential to have a comprehensive understanding of the mechanical properties of the nonwoven material. In general, the properties of the filter material are influenced by temperature and can be changed during loading due to irreversible deformation, fatigue, and aging processes. In order to gain a deeper comprehension, the presented study examines the influence of temperature and repeated tensile stress on the filter medium properties. The focus is on fuel and oil filters employed in automotive applications. The characteristic properties of the samples, including thickness, porosity, and permeability as well as Young's modulus and Poisson's number, are measured. Young's modulus is determined for both new and aged samples. In addition, the viscoelastic behavior is investigated via a dynamic mechanical thermal analysis. The results demonstrate a significant dependence of mechanical properties on the material composition and the aging effects.

摘要

非织造过滤介质因其高过滤效率以及可通过不同工艺生产的多种成分和结构而被用于许多工业应用中。在分离过程中的过滤操作期间，流体流动会对过滤介质施加力，这会导致其变形，在极端情况下还会造成损坏。为了为给定应用设计或选择可靠的过滤介质，全面了解非织造材料的机械性能至关重要。一般来说，过滤材料的性能受温度影响，并且在加载过程中可能会由于不可逆变形、疲劳和老化过程而发生变化。为了更深入地理解，本研究考察了温度和反复拉伸应力对过滤介质性能的影响。重点是汽车应用中使用的燃油和机油滤清器。测量了样品的特性，包括厚度、孔隙率、渗透率以及杨氏模量和泊松比。测定了新样品和老化样品的杨氏模量。此外，通过动态机械热分析研究了粘弹性行为。结果表明，机械性能对材料成分和老化效应有显著依赖性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/c5cc640c0c1f/materials-17-04578-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/9925a32435cc/materials-17-04578-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/4ba7ba1e230a/materials-17-04578-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/26689ddf715b/materials-17-04578-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/48105e52cf3b/materials-17-04578-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/92c7f97d170d/materials-17-04578-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/6ff03600b4ac/materials-17-04578-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/901b7a2d28d6/materials-17-04578-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/b2bfaf4483b3/materials-17-04578-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/1c9e261b77aa/materials-17-04578-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/527f304d8b9a/materials-17-04578-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75d2/11433358/c5cc640c0c1f/materials-17-04578-g014.jpg

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Accelerated Aging Ultraviolet of a PET Nonwoven Geotextile and Thermoanalytical Evaluation.聚酯非织造土工织物的加速老化紫外线及热分析评估
Materials (Basel). 2022 Jun 11;15(12):4157. doi: 10.3390/ma15124157.
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Influence of ZnO, SiO and TiO on the aging process of PLA fibers produced by electrospinning method.氧化锌、二氧化硅和二氧化钛对静电纺丝法制备的聚乳酸纤维老化过程的影响。
J Therm Anal Calorim. 2020;140(4):1769-1778. doi: 10.1007/s10973-019-08890-6. Epub 2019 Nov 2.