2024-11-13 ロイヤルメルボルン工科大学(RMIT)
＜関連情報＞
- https://www.rmit.edu.au/news/all-news/2024/nov/anti-fatberg-invention
- https://www.sciencedirect.com/science/article/pii/S1385894724077179
下水道における脂肪油脂の堆積を抑制する、三重の異なる治癒結合を持つ新しいハイブリッド・コーティング材料 Novel hybrid coating material with triple distinct healing bond for fat oil and grease deposition control in the sewer system
Sachin Yadav, Biplob Kumar Pramanik
Chemical Engineering Journal Available online: 27 September 2024
DOI:https://doi.org/10.1016/j.cej.2024.156226
Graphical abstract
Highlights
- Novel hybrid Zn-polyurethane material was synthesized by a single-pot process.
- Zn-polyurethane contains three distinct dynamic bonds.
- Zn-polyurethane material shows excellent water and thermal stability up to 850 °C.
- Zn-polyurethane material acts as an effective coating for controlling FOG deposition.
- A reduction of over 30% in FOG deposit formation on coated concrete sample.
Abstract
Hybrid materials with distinct self-healing bonds are a prominent category of materials, demanding in various modern applications. Developing self-healable hybrid materials with desired self-healing properties at ambient conditions is highly desirable and challenging. Herein, we developed a novel zinc (II)–dimethylglyoxime–urethane-complex-based polyurethane elastomer (Zn-polyurethane hybrid material) with synergetic triple dynamic bonds, which exhibits spontaneous self-healing properties at 30 °C. Moreover, this material shows excellent thermal stability up to approximately 850 °C and is highly stable in water systems. This hybrid material has potential applications in water systems; in this study, we characterized it for fat, oil and grease (FOG) deposition management in sewer systems by applying it as a coating on concrete blocks. The findings indicate that following a 30-day leaching test conducted under controlled pH conditions on uncoated and Zn-polyurethane-coated concrete blocks, a reduction of over 80 % in calcium release was observed in the coated block compared to the uncoated concrete block. Additionally, in FOG deposit formation tests conducted on uncoated and coated concrete blocks for 30 days, a reduction of over 30 % in FOG deposit formation was noted in the coated sample.
