A kind of PDMS-PTFE transparent film and preparation method thereof for improving the performance of nano triboelectric generator

A technology of PDMS-PTFE and nano friction, which is applied in the field of friction nano power generation, can solve the problems of different application fields and the inability to make transparent films, etc., and achieve the effect of simple process and low cost

Active Publication Date: 2021-02-19
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the two patents belong to the field of material preparation, they are different from the application field of this patent and cannot be made into transparent films

Method used

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  • A kind of PDMS-PTFE transparent film and preparation method thereof for improving the performance of nano triboelectric generator
  • A kind of PDMS-PTFE transparent film and preparation method thereof for improving the performance of nano triboelectric generator
  • A kind of PDMS-PTFE transparent film and preparation method thereof for improving the performance of nano triboelectric generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Weigh 10g polydimethylsiloxane prepolymer and dissolve it in 0.1g n-hexane, mix and stir for 10min, so that the two are fully mixed evenly;

[0039] (2) Add PTFE emulsion (the net content of PTFE is 0.1g) to the mixed solution, and heat to 100°C and stir for 0.5h to prepare a mixed solution;

[0040] (3) Cool the above mixed solution to room temperature, add 0.8g tetraethyl orthosilicate cross-linking agent, then add 0.3g dibutyltin dilaurate catalyst, stir at room temperature for 0.5h to prepare uniformly mixed PDMS solution to be solidified; and carry out Degassing treatment to prepare a uniform and bubble-free PDMS solution to be cured;

[0041] (4) The above solution was coated on the substrate glass of the nanogenerator, and cured at 40° C. for 8 hours, and the film was peeled off from the substrate to prepare a PDMS-PTFE film.

Embodiment 2

[0043] (1) Weigh 10g of polydimethylsiloxane prepolymer and dissolve it in 1g of n-hexane, mix and stir for 5min, so that the two are fully mixed evenly;

[0044] (2) Add PTFE emulsion (wherein the net content of PTFE is 0.3g) to the mixed solution, and stir for 5 hours in a hot environment at 60°C to prepare a mixed solution;

[0045] (3) Cool the above mixed solution to room temperature, add 0.9g tetraethyl orthosilicate crosslinking agent, then add 0.3g dibutyltin dilaurate catalyst, stir at room temperature for 0.5h to obtain a uniformly mixed PDMS solution to be solidified, and carry out Degassing treatment to prepare a uniform and bubble-free PDMS solution to be cured;

[0046] (4) Coating the above-mentioned solution on the substrate silicon wafer of the nanogenerator, and curing at 60° C. for 6 hours, peeling off the film from the substrate to prepare a PDMS-PTFE film.

Embodiment 3

[0048] (1) By weight, take 10g of polydimethylsiloxane prepolymer and dissolve it in 1g of n-hexane, mix and stir for 5min, so that the two are fully mixed evenly;

[0049] (2) Add PTFE emulsion (wherein the net content of PTFE is 0.5g) to the mixed solution, and stir in a hot environment of 70°C for 3.5h to prepare a mixed solution;

[0050] (3) Cool the above mixed solution to room temperature, add 1g of tetraethyl orthosilicate crosslinking agent, then add 0.2g of dibutyltin dilaurate catalyst, stir at room temperature for 1h to obtain a uniformly mixed PDMS solution to be solidified, and remove it Gas treatment to obtain a uniform and bubble-free PDMS solution to be cured;

[0051] (4) The above solution was coated on the substrate PET plate of the nanogenerator, and cured at 120° C. for 20 minutes, and the film was peeled off from the substrate to obtain a PDMS-PTFE film.

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Abstract

The invention discloses a PDMS-PTFE film for improving the performance of a nano friction generator and a preparation method thereof, belonging to the technical field of friction nano power generation. The preparation method is as follows: by weight, take polydimethylsiloxane (PDMS) prepolymer and dissolve it in n-hexane, mix and stir, so that the two are fully mixed evenly; add PTFE emulsion to the mixed solution, and heat and stir to prepare Mixed solution; cool the above mixed solution to room temperature, add tetraethyl orthosilicate crosslinking agent, then add dibutyltin dilaurate catalyst, stir at room temperature to prepare a uniformly mixed PDMS solution to be solidified; then degas it; The solution is applied to the substrate of the nanogenerator, cured, and the film is peeled off from the substrate to obtain a PDMS-PTFE film. The present invention provides a method with simple process, low cost, and can be used for large-scale production to prepare PDMS-PTFE transparent flexible film for TENG, and provides a new method and idea for the production of high-performance TENG materials.

Description

technical field [0001] The invention relates to the technical field of triboelectric power generation, in particular to a PDMS-PTFE transparent film for improving the performance of a nano triboelectric generator and a preparation method thereof. Background technique [0002] As electronic devices and systems continue to evolve toward miniaturization, portability, and multi-function, a single electronic device often integrates many different types of sensors, and the construction of the Internet of Things is largely based on a large number of sensor units. network connection. Triboelectric nanogenerator (TENG), as an emerging energy conversion device based on electrostatic induction and triboelectric effect, can be used to directly collect human motion, mechanical vibration, sound wave energy and even raindrops that exist widely in nature and are not easily utilized. And the energy produced by ocean waves, etc., is therefore regarded as an effective way to realize green ene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L27/18C08J5/18C08J3/24
CPCC08J3/246C08J5/18C08J2383/04C08J2427/18
Inventor 汪桂根李桂钟张绪武叶大明韩杰才
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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