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Authors = Anke Mondschein

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12 pages, 2676 KiB  
Article
Design of Biodegradable PU Textile Coating
by David De Smet, Jente Verjans, Miriam Bader, Anke Mondschein and Myriam Vanneste
Polymers 2024, 16(16), 2236; https://doi.org/10.3390/polym16162236 - 6 Aug 2024
Cited by 1 | Viewed by 2128
Abstract
Polyurethane (PU) coatings are used in diverse applications such as textile coating. Up to today, landfilling is still the most occurring way of processing PU waste. Biodegradation is an alternative route for processing PU waste and decreases the amount of microplastics in the [...] Read more.
Polyurethane (PU) coatings are used in diverse applications such as textile coating. Up to today, landfilling is still the most occurring way of processing PU waste. Biodegradation is an alternative route for processing PU waste and decreases the amount of microplastics in the case of landfilling. In this study, a biodegradable PU textile coating was developed. The PU was characterized via Fourier-transformed infrared (FT-IR) thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The PU was thermoplastic and had a melting point of approximately 33 °C. The performance of the coating was studied by assessing the water barrier and mechanical properties. The PU coating completely disintegrated, and the biodegradation of PU was assessed in soil and was almost 60%. Furthermore, the plant toxicity was examined by evaluating seedling emergence and growth. Full article
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14 pages, 2259 KiB  
Article
Comparison of the Technical Performance of Leather, Artificial Leather, and Trendy Alternatives
by Michael Meyer, Sascha Dietrich, Haiko Schulz and Anke Mondschein
Coatings 2021, 11(2), 226; https://doi.org/10.3390/coatings11020226 - 13 Feb 2021
Cited by 101 | Viewed by 56509
Abstract
The market for biogenic and synthetic alternatives to leather is increasing aiming to replace animal-based materials with vegan alternatives. In parallel, bio-based raw materials should be used instead of fossil-based synthetic raw materials. In this study, a shoe upper leather and an artificial [...] Read more.
The market for biogenic and synthetic alternatives to leather is increasing aiming to replace animal-based materials with vegan alternatives. In parallel, bio-based raw materials should be used instead of fossil-based synthetic raw materials. In this study, a shoe upper leather and an artificial leather, and nine alternative materials (Desserto®, Kombucha, Pinatex®, Noani®, Appleskin®, Vegea®, SnapPap®, Teak Leaf®, and Muskin®) were investigated. We aimed to compare the structure and technical performance of the materials, which allows an estimation of possible application areas. Structure and composition were characterized by microscopy and FTIR spectroscopy, the surface properties, mechanical performance, water vapor permeability, and water absorption by standardized physical tests. None of the leather alternatives showed the universal performance of leather. Nevertheless, some materials achieved high values in selected properties. It is speculated that the grown multilayer structure of leather with a very tight surface and a gradient of the structural density over the cross-section causes this universal performance. To date, this structure could neither be achieved with synthetic nor with bio-based materials. Full article
(This article belongs to the Section Functional Polymer Coatings and Films)
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