面向高温储能应用可交联聚丙烯电介质材料研究
Research on cross-linked polypropylene polymer dielectric for high temperature energy storage applications
马东 1熊杰 1彭一纯 1刘晶晶 2张志成1
作者信息
- 1. 西安交通大学 化学学院,西安 710049
- 2. 西安工业大学 光电工程学院,西安 710021
- 折叠
摘要
近几年,电磁弹射技术和电动汽车行业快速发展,对于提高薄膜介电电容器的耐高温和高储能性能的需求也越来越迫切.为此,对接枝交联抗氧化剂的聚丙烯(PPHP)进行了热处理,使其内部发生交联形成交联三维网络,可提高聚丙烯的耐高温性能、耐高压性能、介电性能以及储能性能.研究结果表明:经过热处理的接枝可交联抗氧化剂聚丙烯(CPP)相较于双向拉伸聚丙烯(BOPP)和聚丙烯(PP),在室温下其击穿场强可以达到1 105 MV/m,在 130℃时可达到 647 MV/m,介电常数在 3.0 左右,介电损耗在 0.01 以下;在 600 MV/m 的电场强度下,其能量密度值为 9.13 J/cm3,能量释放效率达到 94.3%.
Abstract
In recent years,rapid development of electromagnetic ejection technology and electric vehi-cle industry requires urgent improvement of thin film dielectric capacitors with high temperature resistance and high energy storage performance.Therefore,the cross-linked antioxidants-linked poly-propylene(PPHP)was heat treated to form a cross-linked three-dimensional network,so as to im-prove the high temperature resistance,high voltage resistance,dielectric properties and energy sto-rage properties of polypropylene.It was found that compared with bidirectional tensile polypropylene(BOPP)and PPHP,the breakdown field strength of grafted cross-linking antioxidant polypropylene(CPP)after heat treatment could reach 1 105 MV/m at room temperature and 647 MV/m at 130℃.At room temperature,the dielectric constant is about 3.0,the dielectric loss is below 0.01,and the energy density is 9.13 J/cm3 under the electric field intensity of 600 MV/m,and the energy release efficiency reaches 94.3%.
关键词
聚丙烯/耐高温/储能/交联抗氧化剂/热处理Key words
polypropylene/high temperatures resistance/energy storage/cross-linked antioxidant/annealing引用本文复制引用
基金项目
陕西省教育厅专项科研计划自然专项(21JK0691)
陕西省自然科学基础研究计划(2023-JC-QN-0453)
出版年
2024
NETL
NSTL
万方数据