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Preparation method of friction nano-generator based on super-slip surface

A nanogenerator, slip technology, applied in triboelectric generators, devices for coating liquids on surfaces, special surfaces, etc., can solve problems such as TENG failure, and achieve the effects of overcoming failure, excellent stability, and simple preparation

Pending Publication Date: 2022-01-21
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the design of TENG devices based on SLIPSs will provide a new way for the design of novel energy harvesting devices and overcome the shortcomings of traditional solid-liquid TENGs based on superhydrophobic surfaces that fail in harsh environments.

Method used

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  • Preparation method of friction nano-generator based on super-slip surface
  • Preparation method of friction nano-generator based on super-slip surface
  • Preparation method of friction nano-generator based on super-slip surface

Examples

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preparation example Construction

[0027] A method for preparing triboelectric nanogenerators (SLIPSs-TENG) based on super-slip surfaces, comprising the following steps:

[0028] ⑴ Preparation of triboelectrode:

[0029] ① Dilute the polytetrafluoroethylene (PTFE) dispersion with a concentration of 10~60wt% at 0.02~0.04mL / cm 2 Spin coating onto the cleaned support substrate yielded a PTFE-coated substrate. The material of the supporting base refers to one of aluminum, nickel, copper, silver, gold and platinum.

[0030] ②Heating the PTFE-coated substrate at 300° C. for 2 hours to remove the surfactant in the PTFE dispersion to prepare the supporting layer 2 coated with the solid friction material.

[0031] ③According to 0.002~0.004mL / cm 2 Lubricating oil is drop-coated on the supporting layer 2 coated with the solid friction material, and the lubricating oil refers to one of perfluoropolyether (PFPE), silicone oil, and mineral oil. The lubricating oil is immiscible with friction fluids. The excess lubricati...

Embodiment 1

[0040] Embodiment 1 A preparation method of SHBs-TENG comprises the following steps:

[0041] ⑴ Preparation of triboelectrode:

[0042] ① Dilute the polytetrafluoroethylene (PTFE) dispersion with a concentration of 60wt% at 0.032mL / cm 2 Spin coating onto cleaned aluminum sheets to obtain PTFE-coated substrates;

[0043] ②The PTFE-coated substrate was heated at 300°C for 2 hours to remove the surfactant in the PTFE dispersion, and a triboelectrode based on a hydrophobic surface was prepared.

[0044] (2) Encapsulate two identical friction electrodes on both sides of the plastic tube 4; the plastic tube 4 is a PC tube with an outer diameter of 2 cm, an inner diameter of 1.8 cm, and a length of 6 cm.

[0045] (3) Inject 5 mL of friction liquid 3 into plastic tube 4, friction liquid 3 is deionized water.

[0046] (4) Use conductive tape 6 to fix the metal wire 5 on the outside of the friction electrode to obtain SHBs-TENG. The conductive tape 6 is a copper tape; the metal wire...

Embodiment 2

[0047]Example 2 A preparation method of SLIPSs-TENG, comprising the following steps:

[0048] ⑴ Preparation of triboelectrode:

[0049] ① Dilute the polytetrafluoroethylene (PTFE) dispersion with a concentration of 60wt% at 0.032mL / cm 2 Spin coating onto cleaned aluminum sheets to obtain PTFE-coated substrates;

[0050] ②Heating the PTFE-coated substrate at 300°C for 2 hours to remove the surfactant in the PTFE dispersion to prepare the supporting layer 2 coated with the solid friction material of the triboelectrode;

[0051] ③According to 0.0032mL / cm 2 The lubricating oil (PFPE) was drip-coated on the support layer 2, and the excess lubricating oil droplets were removed by spin-coating to obtain a triboelectrode based on a super-slip surface.

[0052] (2) Encapsulate two identical triboelectrodes based on the super-slip surface on both sides of the plastic tube 4; the plastic tube 4 is a PC tube with an outer diameter of 2 cm, an inner diameter of 1.8 cm, and a length of 6...

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Abstract

The invention relates to a preparation method of a friction nano-generator based on an ultra-slip surface, and the method comprises the following steps: (1) preparing a friction electrode: (1) coating a cleaned bearing substrate with a polytetrafluoroethylene dispersion liquid through a spin-coating method to obtain a PTFE-coated substrate; (2) heating the PTFE coated substrate to remove a surfactant in the PTFE dispersion liquid to prepare a supporting layer; and (3) dispensing a lubricating oil on the supporting layer to form a friction layer, so as to obtain the friction electrode based on the super-slip surface. (2) packaging two same friction electrodes based on the super-slip surface to two sides of a plastic tube; (3) injecting a friction liquid into the plastic pipe; and (4) fixing a metal wire on the outer side of the friction electrode by using a conductive adhesive tape to obtain the friction nano-generator based on the super-slip surface. The preparation method is simple and convenient, industrial production is easy, and the obtained super-slip surface has excellent stability in a severe environment and has a wide application prospect in the fields of super-slip materials and friction nano-generators.

Description

technical field [0001] The invention relates to the technical field of super-slip materials and friction nanogenerators, in particular to a method for preparing a superslip surface-based friction nanogenerator. Background technique [0002] With the intensification of global climate change, the development of new green energy is urgently needed. The utilization of ocean energy by triboelectric nanogenerators (TENGs) has received increasing attention. Besides the common solid-solid contact, solid-liquid and liquid-liquid contact have also received extensive attention for their potential applications in marine energy harvesting. The entrapped air layer on the hydrophobic solid surface in solid-liquid TENG will be destroyed in extreme cases, leading to the deterioration of the hydrophobic performance. The formation of water film hinders the effective separation of water from the solid surface and suppresses the generation of triboelectric charges. In addition, inspired by th...

Claims

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Application Information

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IPC IPC(8): H02N1/04B05D7/00B05D7/24B05D5/00B05D1/00B05D1/36
CPCH02N1/04B05D7/544B05D7/24B05D5/00B05D1/005B05D1/36
Inventor 郭志光陈奕黄金霞刘维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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