A self-healing sustainable halloysite nanocomposite polyurethane coating with ultrastrong mechanical properties based on reversible intermolecular interactions

doi:10.1016/j.apsusc.2024.160399

IMR OpenIR

	A self-healing sustainable halloysite nanocomposite polyurethane coating with ultrastrong mechanical properties based on reversible intermolecular interactions
	Chen, Tao 1,2,3; Zhang, Wanyu 1,2; Li, Yushan 1,2,3; Liu, Fuchun 1,2,3; Han, En-Hou 3
通讯作者	Liu, Fuchun(fcliu@imr.ac.cn)
	2024-09-15
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	667 页码:9
摘要	Endowing sustainable polyurethane (PU) materials with ultrastrong mechanical properties and highly efficient self-healing performance simultaneously is extremely challenging and of great significance to dramatically extend the service life of metal materials. In this work, 4,4 '-dithiodianiline (DTDA) and bio-based 2,5-Tetrahydrofurandimethanol (THFDM) were used as chain extenders to introduce hierarchical hydrogen bonds and aromatic disulfide bonds into the PU matrix, after which rich interfacial hydrogen bonds were obtained by incorporating environment-friendly polydopamine-modified halloysite nanotube (PDA@HNT) into the PU matrix. The developing PU nanocomposite exhibits record toughness (774.4 MJ m-3), outstanding tensile strength (68.3 MPa), and exceptional elongation at break (2882.7 %), as well as distinguished self-healing performance (85.4 % at 35 degrees C for 24 h; 95.9 % at 80 degrees C for 15 min). Thanks to the shielding effect of PDA@HNT fillers, the PU nanocomposite also possesses good corrosion resistance proved by its high impedance value at 0.01 Hz of 2.23 x 108 Omega cm2 after immersing in 3.5 wt% NaCl solution for 30 days. This work provides constructive guidance to create an ultra-robust self-healing sustainable PU nanocomposite with long-term corrosion resistance.
关键词	Self-healing Anti-corrosion Halloysite nanotube Mechanical properties Hydrogen bonds Aromatic disulfide bonds
资助者	LingChuang Research Project of China National Nuclear Corporation
DOI	10.1016/j.apsusc.2024.160399
收录类别	SCI
语种	英语
资助项目	LingChuang Research Project of China National Nuclear Corporation[E041F212Z1]
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001249245200001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187210
专题	中国科学院金属研究所
通讯作者	Liu, Fuchun
作者单位	1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
推荐引用方式 GB/T 7714	Chen, Tao,Zhang, Wanyu,Li, Yushan,et al. A self-healing sustainable halloysite nanocomposite polyurethane coating with ultrastrong mechanical properties based on reversible intermolecular interactions[J]. APPLIED SURFACE SCIENCE,2024,667:9.
APA	Chen, Tao,Zhang, Wanyu,Li, Yushan,Liu, Fuchun,&Han, En-Hou.(2024).A self-healing sustainable halloysite nanocomposite polyurethane coating with ultrastrong mechanical properties based on reversible intermolecular interactions.APPLIED SURFACE SCIENCE,667,9.
MLA	Chen, Tao,et al."A self-healing sustainable halloysite nanocomposite polyurethane coating with ultrastrong mechanical properties based on reversible intermolecular interactions".APPLIED SURFACE SCIENCE 667(2024):9.