G-C3N4/CNT nanohybrid material modified PPESK lubricating film and preparation method thereof

A technology of nano-hybrid materials and lubricating films, which is applied in the field of membrane material preparation, can solve the problems of unsatisfactory high-performance lubricating materials, low PPESK load capacity, and inability to meet industrial needs, etc., to improve material mechanical and wear resistance properties, improve Tribological performance, the effect of excellent tribological performance

Active Publication Date: 2020-06-02
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyaryl ether sulfone ketone (PPESK) containing phthalazinone-biphenyl structure has attracted much attention because of its excellent comprehensive properties. However, pure PPESK has low load capacity and poor wear resistance, which cannot meet the needs of high-performance lubrication in the ever-changing industrial development. Material requirements; for this reason, many scholars have improved the performance of PPESK, mainly by adding fillers
[0003] In the prior art, the mechanical properties or tribological properties of PPESK are improved by adding tubular or sheet-shaped fillers to PPESK, but the addition of a single filler can only improve the performance of a certain aspect of the material, and cannot meet the increasingly widespread industrial needs

Method used

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  • G-C3N4/CNT nanohybrid material modified PPESK lubricating film and preparation method thereof
  • G-C3N4/CNT nanohybrid material modified PPESK lubricating film and preparation method thereof
  • G-C3N4/CNT nanohybrid material modified PPESK lubricating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: g-C 3 N 4 preparation of

[0028] Weigh 3 g of urea and grind it in a mortar until it is evenly mixed. Under the protection of nitrogen, it was put into a covered alumina crucible, the temperature was gradually raised, and it was calcined in a tube furnace. The temperature was raised from 350°C to 550°C in 90 minutes, and kept for 120 minutes. Naturally cooled to room temperature, the calcined product was taken out, washed several times with deionized water and alcohol, centrifuged and dried to obtain g-C 3 N 4 nanomaterials.

[0029] figure 1 with 2 for g-C 3 N 4 SEM and TEM topography of nanomaterials, from which it can be clearly seen that the prepared g-C 3 N 4 Nanomaterials are transparent, curled two-dimensional thin-layer structures. Figure 5 for g-C 3 N 4 and g-C 3 N 4 / CNT nano-hybrid material X-ray diffraction pattern. It can be seen from the figure that g-C 3 N 4 There are two characteristic diffraction peaks at 12.7° and 27.5°,...

Embodiment 2

[0030] Example 2: g-C 3 N 4 / CNT nano-hybrid material preparation

[0031] Weigh 8 g of urea and 0.036 g of CNT, grind and mix them evenly in a mortar. Under the protection of nitrogen, the mixture was placed in an alumina crucible with a cover, the temperature was gradually raised, and it was calcined in a tube furnace. The temperature was raised from 350° C. to 550° C. in 100 minutes, and kept for 100 minutes. Naturally cooled to room temperature, the calcined product was taken out, washed several times with deionized water and alcohol, centrifuged and dried to obtain g-C 3 N 4 / CNT nano-hybrid materials.

Embodiment 3

[0033] (1) g-C 3 N4 / CNT nano-hybrid material preparation:

[0034] Weigh 9 g of urea and 0.04 g of carbon nanotubes, grind and mix them evenly in a mortar. Under the protection of nitrogen, the mixture was placed in an alumina crucible with a cover, and the temperature was gradually increased, and calcined in a tube furnace. The program was: the temperature was raised from room temperature to 330 ° C within 100 minutes, and kept for 120 minutes, and then, The temperature was raised from 330°C to 500°C within 90 minutes and kept at this temperature for 110 minutes. Naturally cooled to room temperature, the calcined product was taken out, washed several times with deionized water and alcohol, centrifuged and dried to obtain g-C 3 N 4 / CNT nano-hybrid materials.

[0035] (2) g-C 3 N 4 Preparation of PPESK lubricating film modified by / CNT nano-hybrid material:

[0036] Take 4.0g of PPESK powder and dissolve it in 50mL of DMA organic solvent, and stir it ultrasonically to ...

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Abstract

The invention provides a g-C3N4 / CNT nanohybrid material modified PPESK lubricating film and a preparation method thereof, and belongs to the technical field of film material preparation. Urea and CNTare calcined to prepare g-C3N4 / CNT nanohybrid material modified PPESK resin, and then the modified PPESK lubricating film with high performances is prepared. The prepared film has high strength and toughness and outstanding tribological properties, and the preparation method is mild in reaction conditions, simple in preparation process, easy to operate, low in cost and suitable for large-scale production of polymer self-lubricating composite films.

Description

technical field [0001] The invention belongs to the technical field of membrane material preparation, and relates to a polymer-based solid self-lubricating film, in particular to a g-C 3 N 4 / CNT nano hybrid material modified PPESK lubricating film and its preparation method. Background technique [0002] Polyaryl ether sulfone ketone (PPESK) containing phthalazinone-biphenyl structure has attracted much attention because of its excellent comprehensive properties. However, pure PPESK has low load capacity and poor wear resistance, which cannot meet the needs of high-performance lubrication in the ever-changing industrial development. The demand for materials; for this reason, many scholars have improved the performance of PPESK, mainly by adding fillers. [0003] In the prior art, the mechanical properties or tribological properties of PPESK are improved by adding tubular or sheet-shaped fillers to PPESK, but the addition of a single filler can only improve the performance...

Claims

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Application Information

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IPC IPC(8): C08L81/06C08K13/04C08K7/00C08K3/28C08K3/04C08J5/18
CPCC08J5/18C08J2381/06C08K2201/011C08K3/28C08K3/041C08K7/00C08K13/04
Inventor 陈贝贝张梦杰李祥贾雨晗董喆李长生
Owner JIANGSU UNIV
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