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Planting Multiwalled Carbon Nanotubes onto Epoxidized Soybean Oil-Based Vitrimer to Construct a Biobased Photothermal Superhydrophobic Coating with Self-Healing and Closed-Loop Recyclability for Anti/Deicing
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2024-04-23 , DOI: 10.1021/acssuschemeng.4c01475 Xiangzhao Wang 1 , Xiaobin Huang 1 , Zemin Ji 1 , Haoqiang Sheng 1 , Hong Liu 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2024-04-23 , DOI: 10.1021/acssuschemeng.4c01475 Xiangzhao Wang 1 , Xiaobin Huang 1 , Zemin Ji 1 , Haoqiang Sheng 1 , Hong Liu 1
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Endowing superhydrophobic coatings (SHCs) with photothermal properties has become a promising approach to overcoming the icephobic performance failure of SHCs in low-temperature and high-humidity environments. However, the reported photothermal SHCs rely on petroleum-based resources and are nonrecyclable, which is not conducive to resource conservation and environmental protection. In addition, they are also prone to external damage that shortens their service life. Herein, a fully biobased epoxy vitrimer with self-healing and closed-recyclability was prepared by curing epoxidized soybean oil (ESO) with a fully biobased imine-containing curing agent derived from 1,10-diaminodecane and vanillin. Subsequently, multiwalled carbon nanotubes (MWCNTs) were planted on the surface of the ESO-based vitrimer to create a superhydrophobic coating, taking advantage of the dissolution and swelling behavior of solvents. MWCNTs can spontaneously form micro/nanostructures on the surface of the vitrimer due to the planting method, endowing the coating with excellent anti/deicing (ice delaying time: 622 s, ice adhesion strength: 11.2 kPa) and photothermal deicing performance (remove surface frost or ice within 30 s). More importantly, the coating possessed the ability for photothermal self-healing thanks to the photothermal effect of MWCNTs and the bond exchangeability of the vitrimer, which is beneficial for achieving remote and precise self-healing. At the same time, the dynamic imine bonds in the vitrimer can give the coating excellent closed-loop recycling. This study has a guiding significance for the sustainable development of photothermal coatings and the recycling of composite coatings.
中文翻译：
在环氧化大豆油基 Vitrimer 上种植多壁碳纳米管，构建具有自修复和闭环可回收性的生物基光热超疏水涂层，用于防冰/除冰
赋予超疏水涂层（SHC）光热性能已成为克服SHC在低温高湿环境下疏冰性能失效的一种有前途的方法。然而，已报道的光热SHCs依赖于石油资源且不可回收，不利于资源节约和环境保护。此外，它们还容易受到外部损坏，从而缩短其使用寿命。在此，通过使用源自1,10-二氨基癸烷和香草醛的全生物基含亚胺固化剂固化环氧化大豆油（ESO），制备了具有自修复和封闭可回收性的全生物基环氧玻璃体。随后，利用溶剂的溶解和溶胀行为，将多壁碳纳米管（MWCNT）种植在基于ESO的vitrimer的表面上，以创建超疏水涂层。由于种植方式，多壁碳纳米管可以在玻璃体表面自发形成微纳结构，赋予涂层优异的防/除冰性能（冰延迟时间：622 s，冰附着强度：11.2 kPa）和光热除冰性能（去除表面霜）或 30 秒内冰）。更重要的是，得益于多壁碳纳米管的光热效应和玻璃体的键交换性，该涂层具有光热自修复能力，有利于实现远程精准自修复。同时，Vitrimer中的动态亚胺键可以赋予涂层优异的闭环回收性。该研究对于光热涂料的可持续发展和复合涂料的回收利用具有指导意义。
更新日期：2024-04-23
中文翻译：
在环氧化大豆油基 Vitrimer 上种植多壁碳纳米管，构建具有自修复和闭环可回收性的生物基光热超疏水涂层，用于防冰/除冰
赋予超疏水涂层（SHC）光热性能已成为克服SHC在低温高湿环境下疏冰性能失效的一种有前途的方法。然而，已报道的光热SHCs依赖于石油资源且不可回收，不利于资源节约和环境保护。此外，它们还容易受到外部损坏，从而缩短其使用寿命。在此，通过使用源自1,10-二氨基癸烷和香草醛的全生物基含亚胺固化剂固化环氧化大豆油（ESO），制备了具有自修复和封闭可回收性的全生物基环氧玻璃体。随后，利用溶剂的溶解和溶胀行为，将多壁碳纳米管（MWCNT）种植在基于ESO的vitrimer的表面上，以创建超疏水涂层。由于种植方式，多壁碳纳米管可以在玻璃体表面自发形成微纳结构，赋予涂层优异的防/除冰性能（冰延迟时间：622 s，冰附着强度：11.2 kPa）和光热除冰性能（去除表面霜）或 30 秒内冰）。更重要的是，得益于多壁碳纳米管的光热效应和玻璃体的键交换性，该涂层具有光热自修复能力，有利于实现远程精准自修复。同时，Vitrimer中的动态亚胺键可以赋予涂层优异的闭环回收性。该研究对于光热涂料的可持续发展和复合涂料的回收利用具有指导意义。
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