Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology | |
Hao JC(郝京诚); Chen, Mengjun1,2; Liu BY(刘宝勇)1; Wang, Xiaolin2; Fu, Yanxu2; Hao JC(郝京诚)2; Li HG(李洪光); Li HG(李洪光)1 | |
刊名 | Soft Matter |
2017 | |
卷号 | 13期号:36页码:6250-6258 |
ISSN号 | 1744-683X |
DOI | 10.1039/c7sm00800g |
英文摘要 | The formation of lamellar liquid crystals (LLCs) has been demonstrated in a few salt-free catanionic surfactant systems and their properties have been well documented. However, examples of their combination with other materials are relatively rare. Herein, a salt-free zero-charged catanionic surfactant with low chain melting temperature was prepared by mixing equimolar tetradecyltrimethylammonium oxide (TTAOH) and oleic acid (OA) in water, and its concentration-dependent aggregate transition was investigated. In the dilute region (cTTAO ≤ 5 wt%), fluorescence microscopy observations revealed the formation of vesicles (the Lαv phase). Further increasing cTTAO induced a transition from the Lαv phase to LLCs via a region where vesicles and lamellae coexist. With ordered hydrophobic domains, the LLCs can be used as hosts for the doping of fullerene C60 (refers to C60 hereafter) with the highest C60/TTAO weight ratio of 0.04. The doping of C60 effectively improves the viscoelasticity of the LLCs confirmed by rheological characterization while only slight modifications on their matrixes have been detected using small angle X-ray scattering measurements. The LLC/C60 hybrids with cTTAO = 80 wt% were then subjected to tribological measurements, and an obvious reduction in their friction coefficients and wear volumes was observed. The C60/TTAO weight ratio at which the best tribological performance appears was determined to be 0.01. Our results indicate that the combination of C60 and catanionic LLCs could lead to the appearance of a new generation of environmentally-benign lubricants. |
学科主题 | 材料科学与物理化学 |
资助项目 | 柔性有机太阳能电池研究组 |
语种 | 英语 |
WOS记录号 | WOS:000411445100022 |
资助机构 | the National Natural Science Foundation of China (No. 61474124;21402215;21420102006) ;the Hundred Talents Program of the Chinese Academy of Sciences (Y20245YBR1) |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.ac.cn/handle/362003/22513] |
专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 |
通讯作者 | Hao JC(郝京诚); Li HG(李洪光) |
作者单位 | 1.Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China 2.Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of education, Jinan, China |
推荐引用方式 GB/T 7714 | Hao JC,Chen, Mengjun,Liu BY,et al. Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology[J]. Soft Matter,2017,13(36):6250-6258. |
APA | 郝京诚.,Chen, Mengjun.,Liu BY.,Wang, Xiaolin.,Fu, Yanxu.,...&Li HG.(2017).Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology.Soft Matter,13(36),6250-6258. |
MLA | 郝京诚,et al."Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology".Soft Matter 13.36(2017):6250-6258. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论