Combined Effect of Microstructure, Surface Energy, and Adhesion Force on the Friction of PVA/Ferrite Spinel Nanocomposites

被引：48

作者：

Darwish, Moustafa A. ^{[1
]}

Zubar, Tatiana, I ^{[2
,3
]}

Kanafyev, Oleg D. ^{[2
]}

Zhou, Di ^{[4
,5
]}

Trukhanova, Ekaterina L. ^{[2
]}

Trukhanov, Sergei, V ^{[2
]}

Trukhanov, Alex, V ^{[2
,3
,6
]}

Henaish, Ahmed Maher ^{[1
,7
]}

机构：

[1] Tanta Univ, Fac Sci, Phys Dept, Tanta 31527, Egypt

[2] NAS Belarus, SSPA Sci & Pract Mat Res Ctr, Lab Magnet Films Phys, 19 P Brovki Str, Minsk 220072, BELARUS

[3] South Ural State Univ, Lab Single Crystal Growth, 76 Lenin Av, Chelyabinsk 454080, Russia

[4] Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian 710049, Peoples R China

[5] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Sch Elect Sci & Engn, Xian 710049, Peoples R China

[6] Natl Univ Sci & Technol MISiS, Dept Elect Mat Technol, Moscow 119049, Russia

[7] Ural Fed Univ, NANOTECH Ctr, Ekaterinburg 620002, Russia

来源：

NANOMATERIALS | 2022年 / 12卷 / 12期

关键词：

nanocomposites; ferrites; spinel nanoparticles; surface energy; friction; FLUID LOAD SUPPORT; MECHANICAL-PROPERTIES; POLYVINYL-ALCOHOL; MAGNETIC-PROPERTIES; POLYMER NANOCOMPOSITES; ELECTRICAL-PROPERTIES; MICROWAVE PROPERTIES; COMPOSITE HYDROGEL; NI; BEHAVIOR;

D O I：

10.3390/nano12121998

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocomposite films based on spinel ferrite (Mg0.8Zn0.2Fe1.5Al0.5O4) in a PVA matrix were obtained. An increase in the spinel concentration to 10 wt.% caused an avalanche-like rise in roughness due to the formation of nanoparticle agglomerates. The lateral mode of atomic force microscopy (AFM) allowed us to trace the agglomeration dynamics. An unexpected result was that the composite with 6 wt.% of filler had a low friction coefficient in comparison with similar composites due to the successfully combined effects of low roughness and surface energy. The friction coefficient decreased to 0.07 when the friction coefficient of pure PVA was 0.72. A specially developed method for measuring nano-objects' surface energy using AFM made it possible to explain the anomalous nature of the change in tribological characteristics.

引用

页数：18

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