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Composite piezoelectric ceramic fiber membrane for road power generation and preparation method

A piezoelectric ceramic, road power generation technology, applied in the direction of fiber chemical characteristics, conjugated synthetic polymer rayon, conjugated rayon, etc., can solve the problem of poor dispersion of nano piezoelectric ceramic fibers, composite piezoelectric ceramic fiber membrane High mechanical strength, poor compatibility between piezoelectric ceramic fibers and polymers, etc., to achieve good power generation effect, eliminate polarization steps, and solve the effect of poor dispersion

Inactive Publication Date: 2020-07-31
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this situation, the present invention provides a composite piezoelectric ceramic fiber membrane for road power generation and a preparation method, which effectively improves the poor dispersion of nano piezoelectric ceramic fibers and the poor compatibility of piezoelectric ceramic fibers and polymers. problem, the prepared composite piezoelectric ceramic fiber membrane has high mechanical strength and can be widely used in the field of road power generation

Method used

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  • Composite piezoelectric ceramic fiber membrane for road power generation and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) K with a diameter of 200nm 0.5 Na 0.5 NbO 3 The piezoelectric ceramic material is bombarded with a high-energy electron beam, the energy of the high-energy electron beam is 1.9MeV, the irradiation dose is 250kGy, and the irradiation time is 23min, so that holes are formed on the surface of the niobate-based piezoelectric ceramic material. The void rate on the surface of the piezoelectric ceramic material is 21%, and it is weighed and added to high-purity water for 3 hours to form a dispersion liquid according to the weight ratio of 1:15, and the solution containing the active group is mixed with the dispersion liquid according to the molar ratio of 0.4:1. Make the surface of the niobate-based piezoelectric ceramic material have an active group -COOH, and mix it with an organic solvent ether according to a solid-to-liquid ratio of 1g:15mL to obtain an organic solvent dispersion of the initial niobate-based piezoelectric ceramic material;

[0034] (2) The cationic i...

Embodiment 2

[0042] (1) K with a diameter of 800nm 0.5 Na 0.5 NbO 3 The piezoelectric ceramic material is bombarded with a high-energy electron beam, the energy of the high-energy electron beam is 1.9MeV, the irradiation dose is 250kGy, and the irradiation time is 25min, so that holes are formed on the surface of the niobate-based piezoelectric ceramic material. The void rate on the surface of the piezoelectric ceramic material is 23%. Weigh it and add it into high-purity water for 2 hours to form a dispersion liquid according to the weight ratio of 1:14. Mix the solution containing the active group with the dispersion liquid according to the molar ratio of 0.3:1. Make the surface of the niobate-based piezoelectric ceramic material have an active group -SH, and mix it with the organic solvent diphenyl ether according to the solid-to-liquid ratio of 1g: 12mL to obtain the organic solvent dispersion of the initial niobate-based piezoelectric ceramic material. liquid;

[0043] (2) The cati...

Embodiment 3

[0050] (1) K with a diameter of 40nm 0.5 Na 0.5 NbO 3 The piezoelectric ceramic material is bombarded with a high-energy electron beam, the energy of the high-energy electron beam is 1.9MeV, the irradiation dose is 250kGy, and the irradiation time is 12min, so that holes are formed on the surface of the niobate-based piezoelectric ceramic material. The void rate on the surface of the piezoelectric ceramic material is 14%, and it is weighed and added to high-purity water for 6.5 hours to form a dispersion liquid according to the weight fraction ratio of 1:22, and the solution containing the active group is added to the In the dispersion liquid, the surface of the niobate-based piezoelectric ceramic material has -NH 2 , according to the solid-to-liquid ratio of 1g: 20mL and then mixed with the organic solvent toluene to obtain the organic solvent dispersion of the initial niobate-based piezoelectric ceramic material;

[0051] (2) The cationic initiator CF 3 SO 3 OCH 3 , Te...

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Abstract

The invention relates to a preparation method of a composite piezoelectric ceramic fiber membrane for road power generation. The preparation method of the composite piezoelectric ceramic fiber membrane for road power generation comprises the steps of strongly bombarding a nanometer niobite-based piezoceramic material by adopting a high-energy electron beam, non-covalently modifying an active groupon the surface of the nanometer niobite-based piezoceramic material, then adding into an active cationic polymerization product mixed solution so as to carry out surface modification on the nanometerniobite-based piezoceramic material, obtaining a polymer-grafted niobite-based piezoceramic, finally adding into a polyurethane solution, and preparing the polyurethane / niobite-based piezoceramic composite fiber membrane for road power generation through electrostatic spinning. According to the preparation method of the composite piezoelectric ceramic fiber membrane for road power generation provided by the invention, the polymer is firmly grafted on the piezoceramic fiber, and a long-chain polymer is grafted at the same time and is effectively combined with a matrix through an organic branchchain of the polymer, so that the compatibility between the polymer and the matrix is improved, the material strength can be remarkably improved, and the composite piezoelectric ceramic fiber membrane can be widely applied to a road power generation material.

Description

technical field [0001] The invention relates to the technical field of piezoelectric materials, in particular to a composite piezoelectric ceramic fiber membrane for road power generation and a preparation method. Background technique [0002] With the acceleration of industrialization, my country's energy demand continues to grow. However, at present, my country's energy resources are limited, mainly from non-renewable resources such as petroleum and coal, and the dependence on foreign energy is relatively high, and energy bottleneck constraints are becoming more and more prominent. Energy issues do not only appear domestically. Since the beginning of the 21st century, environmental issues and climate change brought about by fossil fuel power generation have begun to attract people's attention internationally. The development of new energy and green energy has become an important issue. An important way for people to solve energy problems. Among them, road power generatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4382D01F8/16D01F8/18C04B41/91C04B41/83
CPCC04B41/009C04B41/4896C04B41/5361C04B41/83C04B41/91D01F8/16D01F8/18D04H1/4382D04H1/728C04B35/495C04B41/0045C04B41/4552
Inventor 陈庆司文彬陈涛
Owner CHENDU NEW KELI CHEM SCI CO LTD
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