Tuning the Hydration and Lubrication of the Embedded Load Bearing Hydrogel Fibers
Zhang R(张冉)1,2; Feng YG(冯雁歌)1,2; Ma SH(麻拴红)1; Cai MR(蔡美荣)1; Yang J(杨军)1; Yu B(于波)1; Zhou F(周峰)1; Yu B(于波); Zhou F(周峰)
刊名Langmuir
2017
卷号33期号:9页码:2069-2075
ISSN号0743-7463
通讯作者于波 ; 周峰
英文摘要

One of the most prominent properties of hydrogels is their excellent hydrolubrication that derives from the strong hydration of the gel network. However, excessive hydration makes hydrogels exhibit a very poor mechanical property, which limits their practical applications. Here, we prepared a novel composite surface of hydrogel nanofibers embedded in an anodic aluminum oxide substrate which exhibited both excellent lubrication and a high load-bearing capacity. Through the copolymerization of acrylic acid and 3-sulfopropyl methacrylate potassium salt, the gel network swelled sufficiently in aqueous solution and caused high osmotic pressure repulsion to bear heavy loads and hence exhibited excellent aqueous lubrication (μ ≈ 0.01). Notably, the friction coefficient of gels showed no dependence on the load in the experiment, whereas it was strongly influenced by the sliding velocity. Additionally, both electrolyte solution and ionic surfactants affect the conformation of the polymer chains, which results in a significant impact on the friction properties of hydrogel fibers.

学科主题材料科学与物理化学
收录类别SCI
资助信息the NSFC (51573198;51335010;21434009);the Ministry of Science and Technology (2016YFC1100401)
语种英语
WOS记录号WOS:000395964100001
内容类型期刊论文
源URL[http://210.77.64.217/handle/362003/21636]  
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Yu B(于波); Zhou F(周峰)
作者单位1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Tianshui Middle Rd, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhang R,Feng YG,Ma SH,et al. Tuning the Hydration and Lubrication of the Embedded Load Bearing Hydrogel Fibers[J]. Langmuir,2017,33(9):2069-2075.
APA Zhang R.,Feng YG.,Ma SH.,Cai MR.,Yang J.,...&周峰.(2017).Tuning the Hydration and Lubrication of the Embedded Load Bearing Hydrogel Fibers.Langmuir,33(9),2069-2075.
MLA Zhang R,et al."Tuning the Hydration and Lubrication of the Embedded Load Bearing Hydrogel Fibers".Langmuir 33.9(2017):2069-2075.
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