Preparation and Performance Study on Micro-nano Laminated Polypropylene Dielectric Film

JIAO Zhiwei; WANG Li; HE Wei; YU Yuan; YANG Weimin

doi:10.14044/j.1674-1757.pcrpc.2024.01.008

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Preparation and Performance Study on Micro-nano Laminated Polypropylene Dielectric Film

Key Technologies for the Full⁃chain Localization of Dry DC Capacitor in China | 更新时间：2024-09-14

- Preparation and Performance Study on Micro-nano Laminated Polypropylene Dielectric Film
- Power Capacitor & Reactive Power Compensation Vol. 45, Issue 1, Pages: 63-67(2024)
- 作者机构：
  
  北京化工大学机电工程学院，北京　 100029
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2024.01.008
  CLC：
- Published：2024-02，
  
  Received：17 October 2023，
- 稿件说明：
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JIAO ZHIWEI, WANG LI, HE WEI, et al. Preparation and Performance Study on Micro-nano Laminated Polypropylene Dielectric Film. [J]. Power capacitor & reactive power compensation, 2024, 45(1): 63-67.
DOI：

JIAO ZHIWEI, WANG LI, HE WEI, et al. Preparation and Performance Study on Micro-nano Laminated Polypropylene Dielectric Film. [J]. Power capacitor & reactive power compensation, 2024, 45(1): 63-67. DOI： 10.14044/j.1674-1757.pcrpc.2024.01.008.

摘要

为解决聚丙烯薄膜介电常数低、介电场强低等问题，创新提出采用微纳层叠挤出技术制备不同层数（1层、16层、256层）的聚丙烯薄膜，并对不同层数聚丙烯薄膜的介电常数、介电损耗、击穿场强、结晶度、力学性能等进行表征。结果表明，相比于层数为1层的聚丙烯薄膜，16层、256层的聚丙烯薄膜的介电常数分别提升23.2%和37.0%，介电损耗分别降低36.94%和58.56%、击穿场强分别提升11%和23.3%，拉伸强度分别提升5.3%和18.98%。结晶度也随层数的增多而增大，该技术对聚丙烯薄膜的介电性能有明显的提升效果。这项工作对单一材料介电性能的提升提供了全新的思路。

Abstract

For solving such problems as low dielectric constant and low dielectric field strength of polypropylene film

it is innovatively proposed to prepare polypropylene films with different numbers of layers (1 layer

16 layers

256 layers) by adopting the micro-nano-layered extrusion technology

and the dielectric constant

dielectric loss

breakdown field strength

crystallinity

and mechanical properties of polypropylene film with different numbers of layers are characterized. The results show that

compared to 1-layer polypropylene film

the dielectric constant of 16-layer and 256-layer polypropylene film is increased by 23.3% and 36.3%

the dielectric loss is decreased by 6.25% and 45.8%

the breakdown field strength is increased by 11% and 23.3%

and the tensile strength is increased by 5.3% and 18.98%

respectively. The crystalinity is also increased witht the increase of the number of layer. The technology has a significant improvement effect on the dielectric performance of polypropylene film. This work provides a new idea for the improvement of the dielectric performance of a single material.

关键词

微纳层叠多层薄膜介电性能聚丙烯结晶

Keywords

micro-nano laminatingmultilayer filmdielectric performancepolypropylenecrystallinity

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