Nanoporous Substrate-Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction
文献类型：期刊论文
| 作者 | 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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| 刊名 | Advanced Functional Materials
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| 出版日期 | 2015 |
| 卷号 | 25期号:47页码:7366-7374 |
| ISSN号 | 1616-301X |
| 通讯作者 | 周峰 ; Daniele Dini |
| 英文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000366504100013 |
| 源URL | [http://210.77.64.217/handle/362003/18798]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Zhou F(周峰) |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：兰州化学物理研究所
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