Academic Journal
Hexakis[p-(hydroxymethyl)phenoxy]cyclotriphosphazene as an Environmentally Friendly Modifier for Polyurethane Powder Coatings with Increased Thermal Stability and Corrosion Resistance
| العنوان: | Hexakis[p-(hydroxymethyl)phenoxy]cyclotriphosphazene as an Environmentally Friendly Modifier for Polyurethane Powder Coatings with Increased Thermal Stability and Corrosion Resistance |
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| المؤلفون: | Barbara Pilch-Pitera, Dominika Czachor-Jadacka, Łukasz Byczyński, Michał Dutkiewicz, Rafał Januszewski, Krzysztof Kowalczyk, Wojciech J. Nowak, Katarzyna Pojnar |
| المصدر: | Materials, Vol 17, Iss 11, p 2672 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | hexakis(4-(hydroxymethyl)phenoxy)cyclotriphosphazene, powder coatings, anticorrosion protection, thermal stability, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | Protection against fire and the corrosion of metals is necessary to ensure human safety. Most of the fire and corrosion inhibitors do not meet the ecological requirements. Therefore, effective and ecological methods of protecting metals are currently a challenge for researchers. In this work, the influence of hexakis(4-(hydroxymethyl)phenoxy)cyclotriphosphazene (HHPCP) on the characteristics of powder coatings was examined. The coatings’ properties were investigated by measuring the roughness, hardness, adhesion to the steel surface, cupping, gloss, scratch resistance, and water contact angle. The thermal stability was studied by furnace test and TGA analysis. The corrosion resistance test was carried out in a 3.5% NaCl solution. The distribution of phosphazene-derived segments in the coating was examined by GD-EOS analysis. Modified coatings show better corrosion and thermal resistance and can be used for the protection of the steel surface. Their better corrosion resistance is due to the electroactive properties of the phosphazene ring and its higher concentration at the coating surface, confirmed by GD-EOS analysis. The increase in thermal resistance is due to the effect of the formation of phosphoric metaphosphoric and polyphosphoric acids during the decomposition of HHCPC, which remain in the condensed char phase and play a crucial role in surface protection. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/17/11/2672; https://doaj.org/toc/1996-1944; https://doaj.org/article/e44c6639f67a4076b9109a318a370e51 |
| DOI: | 10.3390/ma17112672 |
| الاتاحة: | https://doi.org/10.3390/ma17112672 https://doaj.org/article/e44c6639f67a4076b9109a318a370e51 |
| رقم الانضمام: | edsbas.A416D05E |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 19961944 |
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| DOI: | 10.3390/ma17112672 |