Structural characterization and tribological evaluation of quince seed mucilage

被引：38
|
作者：
Hakala, Timo J. [1 ]
Saikko, Vesa [2 ]
Arola, Suvi [1 ,2 ]
Ahlroos, Tiina [1 ]
Helle, Aino [1 ]
Kuosmanen, Petri [2 ]
Holmberg, Kenneth [1 ]
Linder, Markus B. [1 ,2 ]
Laaksonen, Paivi [1 ,2 ]
机构：
[1] VTT Tech Res Ctr Finland, FI-02044 Espoo, Finland
[2] Aalto Univ, FI-00076 Aalto, Finland
来源：
TRIBOLOGY INTERNATIONAL | 2014年 / 77卷
基金：
芬兰科学院;
关键词：
Biolubrication; Boundary lubrication; Macromolecules; Biomimetics; SYNOVIAL JOINT LUBRICATION; PLANT-CELL WALL; CELLULOSE-GLUCURONOXYLANS; NANOFIBRILLATED CELLULOSE; AQUEOUS LUBRICATION; PROTEINS; SURFACES; NANOCOMPOSITES; BEHAVIOR;
D O I：
10.1016/j.triboint.2014.04.018
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The mucilage, originating from the seeds of quince fruit was characterized as a potential bio-inspired water-based lubricant. The mucilage consists mainly of fine cellulose nanofibrils and charged hemicelluloses whose structure and properties were characterized here by atomic force microscopy (AFM) and tribological Pin-On-Disc (POD) experiments. The hemicellulose-decorated nanocellulose fibrils were 3.0 +/- 0.7 nm in thickness, had a very large aspect ratio and also had a tendency to self-align when dried on mica surface. Macroscale tribological tests showed that the mucilage was able to reduce the coefficient of friction of polyethylene/stainless steel contact to values below 0.03. Thus, we show that quince mucilage is a native nanocellulose material with a notable ability to lower friction. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：24 / 31
页数：8
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