Nylon 1/polyvinylidene fluoride composite dielectric film and preparation method thereof

A polyvinylidene fluoride, composite dielectric film technology, applied in the field of composite materials, can solve the problems of reducing the breakdown strength of materials, large dielectric loss, reducing the safety and life of dielectric materials, etc.

Pending Publication Date: 2020-10-30
都江堰市天兴硅业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantage is that it is usually accompanied by a large dielectric loss, and there is agglomeration of the fil

Method used

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  • Nylon 1/polyvinylidene fluoride composite dielectric film and preparation method thereof
  • Nylon 1/polyvinylidene fluoride composite dielectric film and preparation method thereof
  • Nylon 1/polyvinylidene fluoride composite dielectric film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this example, 94 parts of PVDF (polyvinylidene fluoride) and 6 parts of nylon 1 were mixed together by weight, and kneaded at 200°C for 10 minutes on a torque rheometer, and then put on a flat vulcanizer At 200° C., heat press for 15 minutes, and hold the pressure at room temperature for 5 minutes to obtain a film. Silver paint was coated on the upper and lower surfaces of the film as electrodes for testing the dielectric properties.

Embodiment 2

[0037] In this example, 98 parts of PVDF and 2 parts of Nylon 1 were mixed together by weight, and kneaded on a torque rheometer at 200°C for 10 minutes, and then hot pressed at 200°C on a flat vulcanizer. 15 minutes, and then pressurized at room temperature for 5 minutes to obtain a film. Silver paint was coated on the upper and lower surfaces of the film as electrodes for testing the dielectric properties.

Embodiment 3

[0039] Weigh 100 parts of PVDF according to the weight ratio, without adding nylon 1, and banbury it on the torque rheometer at 200°C for 10 minutes, then press it on the flat vulcanizer at 200°C for 15 minutes, and then heat it at room temperature. Hold the pressure for 5 minutes to obtain a film. Silver paint was coated on the upper and lower surfaces of the film as electrodes for comparison of dielectric properties with the composite film.

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PUM

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Abstract

The invention provides a nylon 1/polyvinylidene fluoride composite dielectric film and a preparation method thereof, and relates to the technical field of composite materials. The film is prepared from the following components in percentage by weight: 80 to 99 percent of polyvinylidene fluoride and 1 to 20 percent of nylon 1. The invention further provides a preparation method of the nylon 1/polyvinylidene fluoride composite dielectric film. The preparation method comprises the following steps: mixing polyvinylidene fluoride and nylon 1, and mixing on a torque rheometer at 180-200 DEG C for 10-20 minutes; and carrying out hot pressing on the mixed product on a press vulcanizer at 180-200 DEG C for 10-20 minutes, and maintaining the pressure at room temperature for 3-10 minutes to obtain the nylon 1/polyvinylidene fluoride composite dielectric film. The dielectric constant of the polyvinylidene fluoride is improved, the dielectric loss of the polyvinylidene fluoride is kept at a low level, various problems caused by poor compatibility are reduced, and therefore the functional characteristics of the polyvinylidene fluoride are improved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a nylon 1 / polyvinylidene fluoride composite dielectric film and a preparation method thereof. Background technique [0002] With the rapid development of electronic information technology, the miniaturization and weight reduction of electronic components have put forward higher requirements for the integration, safety and life of the device. Therefore, the development of materials with higher dielectric constant and lower dielectric Electrically lossy polymer dielectric materials have broad application prospects. Traditional ceramic dielectric materials have a high dielectric constant, but high molding temperature, difficult processing, and low impact resistance limit their application in the field of dielectric materials. [0003] Polymer-based dielectric composites have the advantages of good processability, low dielectric loss, and high dielectric constant, so the...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08L77/02C08J5/18
CPCC08J5/18C08J2327/16C08J2477/02
Inventor 袁丹丹廖良蔡绪福梁子材
Owner 都江堰市天兴硅业有限责任公司
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