高存储密度的有机-无机交联PVDF复合材料

IF 8.3 1区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Science and Technology Pub Date : 2025-01-28 DOI:10.1016/j.compscitech.2025.111082

Qianqian Yu , Haijun Wang , Yisha Ma , Shaojuan Wang , Jian Hu , Hao Zhang , Tong Wang , Leipeng Liu , Shouke Yan

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引用次数: 0

摘要

现代电子和电气应用的迅速发展引起了人们对具有高介电常数和高能量密度的介电聚合物基复合材料的广泛关注。在本研究中，通过物理交联无定形硫酸钙低聚物（cso）与PVDF链制备了具有改进相界面的有机-无机均相复合材料。通过cso控制PVDF复合膜的微观结构，提高了复合膜的介电性能和储能性能。结果表明，cso的加入对PVDF极性有较强的诱导作用，同时降低了PVDF的结晶度和晶粒尺寸，从而提高了复合材料的击穿性能。当施加电场为324 kV/mm时，最大储能密度为16.12 J/cm3，储能效率保持在87.17%。因此，本工作为高性能聚合物基储能材料的制备提供了一种新的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Organic-inorganic crosslinking PVDF composites for high storage densities

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Organic-inorganic crosslinking PVDF composites for high storage densities

The rapid development of modern electronic and electrical applications has attracted extensive attention to dielectric polymer matrix composites with high dielectric constant and energy density. In this study, an organic-inorganic homogeneous composite with improved phase interface was prepared by physically cross-linking amorphous calcium sulfate oligomers (CSOs) with PVDF chains. The dielectric properties and energy storage properties of the composite films were improved by controlling the microstructure of PVDF composite films by CSOs. The results show that the addition of CSOs has a strong inducing effect on the polarity of PVDF, while reducing the crystallinity and crystallite size of PVDF, thereby improving the breakdown performance of the composites. When the applied electric field is 324 kV/mm, the maximum energy storage density is 16.12 J/cm³ and the energy storage efficiency is maintained at 87.17 %. Therefore, this work provides a new strategy for the preparation of high-performance polymer-based energy storage materials.

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来源期刊

Composites Science and Technology 工程技术-材料科学：复合

CiteScore

16.20

自引率

9.90%

发文量

611

审稿时长

33 days

期刊介绍： Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites. Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.