| Nanoporous Substrate-Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction | |
| Department | 固体润滑国家重点实验室 |
Ma SH(麻拴红)1,2; M. Scaraggi3; Wang DA(王道爱)1 ; Wang XL(王晓龙)1; Liang YM(梁永民)1; Liu WM(刘维民)1; Daniele Dini4; Zhou F(周峰)1; Zhou F(周峰)
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| 2015 | |
| Source Publication | Advanced Functional Materials
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| ISSN | 1616-301X |
| Volume | 25Issue:47Pages:7366-7374 |
| Abstract | Nature has successfully combined soft matter and hydration lubrication to achieve ultralow friction even at relatively high contact pressure (e.g., articular cartilage). Inspired by this, hydrogels are used to mimic natural aqueous lubricating systems. However, hydrogels usually cannot bear high load because of solvation in water environments and are, therefore, not adopted in real applications. Here, a novel composite surface of ordered hydrogel nanofiber arrays confined in anodic aluminum oxide (AAO) nanoporous template based on a soft/hard combination strategy is developed. The synergy between the soft hydrogel fibers, which provide excellent aqueous lubrication, and the hard phase AAO, which gives high load bearing capacity, is shown to be capable of attaining very low coeffcient of friction (<0.01) under heavy load (contact pressures ≈ 2 MPa). Interestingly, the composite synthetic material is very stable, cannot be peeled off during sliding, and exhibits desirable regenerative (self-healing) properties, which can assure long-term resistance to wear. Moreover, the crosslinked polymethylacrylic acid hydrogels are shown to be able to promptly switch between high friction (>0.3) and superlubrication (≈ 10-3) when their state is changed from contracted to swollen by means of acidic and basic actuation. The mechanisms governing ultralow and tunable friction are theoretically explained via an in-depth study of the chemomechanical interactions responsible for the behavior of these substrate-infiltrated hydrogels. These findings open a promising route for the design of ultra-slippery and smart surface/interface materials. |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1002/adfm.201503681 |
| Funding Organization | NSFC (20434009;21125316;1335010);Key Research Program of CAS (KJZD-EW-M01);the UK Engineering and Physical Sciences Research Council (EPSRC) via the Platform Grant EP/G026114/1 |
| Indexed By | SCI |
| If | 11.803 |
| Language | 英语 |
| Funding Project | 材料表面与界面行为研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18798 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Daniele Dini; Zhou F(周峰) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.China Univ, Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Salento, DII, I-73100 Monteroni Lecce, Italy 4.Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England |
| Recommended Citation GB/T 7714 | Ma SH,M. Scaraggi,Wang DA,et al. Nanoporous Substrate-Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction[J]. Advanced Functional Materials,2015,25(47):7366-7374. |
| APA | Ma SH.,M. Scaraggi.,Wang DA.,Wang XL.,Liang YM.,...&周峰.(2015).Nanoporous Substrate-Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction.Advanced Functional Materials,25(47),7366-7374. |
| MLA | Ma SH,et al."Nanoporous Substrate-Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction".Advanced Functional Materials 25.47(2015):7366-7374. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| adfm201503681.pdf（1854KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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