通过改进的界面兼容性,提高了,和酸纳米复合材料的介电性能
Yongxian Liu1, Bo Tang2, Zaixing Wang1
1School of Chemical Engineering, Northwest University, Xi'an 710069, China.
Journal of colloid and interface science
|November 17, 2024
概括
高性能薄膜电容器受益于增强的聚乙烯 (PEN) 介电性质. 碳氧化PEN (CPEN) 改性酸酸纳米棒 (BSTNR) 和热拉伸显著提高能量密度.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 高性能薄膜电容对于电子设备至关重要.
- 当前材料的过电性质不足限制了电容器的性能.
- 聚乙烯 (PEN) 是一种潜在的介电材料,但需要增强.
研究的目的:
- 为了提高PEN的介电性质,用于高性能薄膜电容器.
- 合成并将碳氧化PEN (CPEN) 修改的和酸纳米棒 (BSTNR) 纳入PEN矩阵中.
- 为了研究热拉伸对复合膜介电性能的影响.
主要方法:
- 合成的酸和酸纳米棒 (BSTNR).
- 用γ-阿米诺三西兰 (KH550) 修改BSTNR,并与碳化PEN (CPEN) 接种,形成CPEN@BSTNR.
- 在PEN矩阵中准备了CPEN@BSTNR的复合膜.
- 应用热拉伸技术,在PEN矩阵内定位CPEN@BSTNR.
主要成果:
- 由于1D纳米基结构和CPEN修改,CPEN@BSTNR和PEN之间的兼容性得到了显著改进.
- 在聚合物矩阵中CPEN@BSTNR的热拉伸诱导的方向.
- 热拉伸的16%重量CPEN@BSTNR/PEN薄膜的介电常数为17.30,分解强度为204.1kV/mm.
- 复合膜的能量密度达到了3.19 J/cm3,比纯PEN提高了300%.
结论:
- 开发的CPEN@BSTNR/PEN复合膜具有显著增强的介电性能.
- 热拉伸是一种有效的方法来提高复合材料的介电性能.
- 这项工作为制造具有更好的能量密度的高性能薄膜电容器提供了一个有前途的方法.
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