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Keywords = magnetic metal-organic frame material

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25 pages, 6357 KiB  
Article
Investigation of a Composite Material Painting Method: Assessment of the Mixture Curing of Organic Coatings
by Anca Barbu, Anamaria Ioana Feier, Edward Petzek and Marilena Gheorghe
Processes 2025, 13(8), 2394; https://doi.org/10.3390/pr13082394 - 28 Jul 2025
Viewed by 288
Abstract
The present investigation highlights the importance of evaluating the painting process on a composite material, namely the Kevlar validation process. Kevlar, a synthetic fabric, is well known for its remarkable strength and durability. Kevlar is used in the construction of spaceships and airplanes [...] Read more.
The present investigation highlights the importance of evaluating the painting process on a composite material, namely the Kevlar validation process. Kevlar, a synthetic fabric, is well known for its remarkable strength and durability. Kevlar is used in the construction of spaceships and airplanes because it is lightweight and five times stronger than steel. This paper will present the methods for measuring paint layer thickness in accordance with EN ISO 2808:2019, confirming that organic coatings have fully cured, and coating thickness will be measured using magnetic currents. This study will also address the topic of determining liquid resistance. The protocols for manufacturing the Kevlar specimen are in accordance with ISO 2812-2:2018 using the water immersion method and structural testing. The investigation also demonstrates the progress of the framing test following immersion in Airbus PTP metal test tubes. Full article
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26 pages, 3547 KiB  
Review
Synthesis of Magnetic Metal-Organic Frame Material and Its Application in Food Sample Preparation
by Jingying Yang, Yabin Wang, Mingfei Pan, Xiaoqian Xie, Kaixin Liu, Liping Hong and Shuo Wang
Foods 2020, 9(11), 1610; https://doi.org/10.3390/foods9111610 - 6 Nov 2020
Cited by 21 | Viewed by 5716
Abstract
A variety of contaminants in food is an important aspect affecting food safety. Due to the presence of its trace amounts and the complexity of food matrix, it is very difficult to effectively separate and accurately detect them. The magnetic metal-organic framework (MMOF) [...] Read more.
A variety of contaminants in food is an important aspect affecting food safety. Due to the presence of its trace amounts and the complexity of food matrix, it is very difficult to effectively separate and accurately detect them. The magnetic metal-organic framework (MMOF) composites with different structures and functions provide a new choice for the purification of food matrix and enrichment of trace targets, thus providing a new direction for the development of new technologies in food safety detection with high sensitivity and efficiency. The MOF materials composed of inorganic subunits and organic ligands have the advantages of regular pore structure, large specific surface area and good stability, which have been thoroughly studied in the pretreatment of complex food samples. MMOF materials combined different MOF materials with various magnetic nanoparticles, adding magnetic characteristics to the advantages of MOF materials, which are in terms of material selectivity, biocompatibility, easy operation and repeatability. Combined with solid phase extraction (SPE) technique, MMOF materials have been widely used in the food pretreatment. This article introduced the new preparation strategies of different MMOF materials, systematically summarizes their applications as SPE adsorbents in the pretreatment of food contaminants and analyzes and prospects their future application prospects and development directions. Full article
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