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Citation: ZHANG Fu-Te, LU Pei-Zhong, LI Ming-Yuan, YE Wen-Yu. Preparation and Tribological Properties of Oil-Soluble Ag Nanoparticles[J]. Chinese Journal of Applied Chemistry, ;2008, 25(2): 194-198. shu

Preparation and Tribological Properties of Oil-Soluble Ag Nanoparticles

1.
a College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001;
2.
b College of Chemistry and Chemical Engineering, Guangxi University, Nanning

Corresponding author: YE Wen-Yu,
Received Date: 4 March 2007
Available Online: 15 September 2007
Fund Project: 河南省科技攻关项目(0424270066) (0424270066)

2,5-Bis(5-thione-1,2,4-dithiazole-3-ylcarbamoyl)-terephthalic acid(BtdyTA),which was synthesized from 3-amido-1,2,4-dithiazole-5-thione(ADTT),was used to modify the surface of silver nanoparticles with NaBH₄ as the reducing agent in AgNO₃ solution.The morphology,structure and stability of the BtdyTA-coated Ag(Ag-BtdyTA) nanoparticles were characterized with transmission electron microscopy(TEM),Fourier transform infrared spectrometry(FT-IR) and thermogravimetric analysis(TG).Anti-wear properties of the Ag-BtdyTA nanoparticles were tested with a four-ball tribological testing machine.The results show that the Ag-BtdyTA nanoparticles exhibited a homogeneous grain size distribution,and the average diameter was about 8 nm without aggregation,which enable the Ag-BtdyTA nanoparticles to be used as an oil additive.The Ag-BtdyTA nanoparticles had good anti-wear properties in liquid paraffin,and they can improve the anti-wear properties of the base oil.
- BtdyTA,
- silver,
- nanoparticle,
- surface modification,
- tribological properties
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