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Application of oleylamine modified nano AgInS2

An oleylamine, nanotechnology, applied in the application field as a lubricant additive, to achieve the effects of improved anti-friction and anti-wear properties, good oil solubility, and excellent tribological properties

Active Publication Date: 2020-10-23
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But currently AgInS 2 The application of it is limited to the field of optoelectronics and semiconductors, and the application of adding it to lubricating oil for performance and technical research has not yet been reported.

Method used

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  • Application of oleylamine modified nano AgInS2
  • Application of oleylamine modified nano AgInS2
  • Application of oleylamine modified nano AgInS2

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Add 30 mL oleylamine to a 100 mL three-necked flask, add 340 mg silver nitrate (2.0 mmol), 584 mg indium acetate (2.0 mmol), blow nitrogen for 20 min, stir and heat to 60 °C until the solid dissolves, The solution was clear. Raise the temperature to 80 °C, and quickly inject 8 mL of organic sulfur (a mixture of 1.0 mL dodecylmercaptan + 7.0 mL tert-dodecylmercaptan). After injection, observe the color change of the solution (from colorless to light yellow), keep the temperature for 10 minutes, heat to 210°C, and react for 1 hour. Cool to room temperature after the reaction. Add 20 mL of n-hexane to the reaction solution, centrifuge the supernatant and add 50 mL of ethanol to precipitate the product, centrifuge the mixture at 7,000 rpm for 10 min, and dry the precipitate in vacuum to obtain oleylamine-modified AgInS 2 nanoparticles.

[0027] Step 2: Oleylamine-modified AgInS 2 Nanoparticles were added into liquid paraffin, prepared into solutions with concent...

Embodiment 2

[0038] The AgInS prepared by embodiment 1 2 Nanoparticles were added to PAO10, prepared into a dispersion system with a concentration of 0.5%, ultrasonically dispersed for 20 minutes, and its tribological properties were comprehensively evaluated.

[0039] (1). The SRV-V micro-vibration friction and wear testing machine produced by German Optimol Company was used to test the dispersion system of the product of Example 1 in PAO10 with a test concentration of 0% and 0.5% respectively at 25 ° C, a frequency of 25 Hz, and an amplitude of 1 mm. Friction coefficient f when the load is 25N and the long grinding is 30 min. The steel ball used in the experiment is GCr15 bearing steel with Φ=10mm, and the next sample is GCr15 steel block with Φ=24×7.9mm. The results are shown in the appendix Figure 8 . Depend on Figure 8 It can be seen that at 25 °C, compared with the blank polyalphaolefin PAO10, the addition of oleylamine modified AgInS 2 The coefficient of friction is greatly red...

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Abstract

The invention provides an application of oleylamine modified nano AgInS2 as a lubricating oil additive. The oleylamine-coated AgInS2 nanoparticles provided by the invention have good lipophilicity, and have the beneficial effects of being stably dispersed in base oil and exerting excellent frictional wear resistance.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil additives, and relates to nano-AgInS modified by oleylamine 2 applications, specifically as lubricating oil additives. Background technique [0002] In the process of modern industrialization, mechanical moving parts will inevitably face friction and wear problems. Lubricating material technology is an effective means to reduce friction, reduce or avoid wear, improve work efficiency and extend equipment life. Sulfide is a widely used lubricating oil additive. The Chinese invention patent application number 200980133345.1 discloses the additive application of metal sulfide and organic sulfide. However, this patent is particularly related to the application of lubricating grease. The metal sulfide cannot be stably dispersed in lubricating oil and is easy to settle, which affects its tribological properties and limits its application in the lubricating oil field. In addition, the general s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/22C10M177/00C10N30/04C10N30/06
CPCC10M125/22C10M177/00C10M2201/065C10M2201/14C10M2205/163C10M2205/0206
Inventor 孙一平娄文静王晓波李维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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