Mechanical, dielectric and thermal properties of polyimide films with sandwich structure

Zhang Panpan; Zhang Ke; Chen Xi; Dou Shuliang; Zhao Jiupeng; Li Yao

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Mechanical, dielectric and thermal properties of polyimide films with sandwich structure

机译：用夹层结构的聚酰亚胺膜的机械，电介质和热性能

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With the development of high-frequency and high-speed flexible circuit boards, there are growing demands for low dielectric constant materials with high mechanical and electric breakdown strength. Herein, a novel sandwich structure is successfully fabricated using fluorinated graphene/polyimide (FG/PI) composite film as a dense outer surface layer and porous PI film as the middle layer. The middle porous layer lead to the ultra low dielectric constant. The presence of FG/PI layers resulted in the increase of mechanical and dielectric breakdown performance compared to that of porous PI. Especially, the three-layer FG/PI film showed a tensile strength of 65.76 MPa, a tensile modulus of 2.96 GPa, a characteristic breakdown strength of 170.49 kV/mm, a dielectric constant of 1.92, and a dielectric loss of less than 0.003. Therefore, the sandwich structure PI film is a highly prospective candidate as flexible circuit substrates for electronics and microelectronics devices.

机译：随着高频和高速柔性电路板的开发，对具有高机械和电击强度的低介电常数材料的需求不断增长。在此，使用氟化石墨烯/聚酰亚胺（FG / PI）复合膜作为致密的外表层和多孔PI膜作为中间层成功制造了一种新型夹层结构。中间多孔层导致超低介电常数。与多孔PI相比，FG / PI层的存在导致机械和介电击穿性能的增加。特别是，三层FG / PI膜显示拉伸强度为65.76MPa，拉伸模量为2.96GPa，特征击穿强度为170.49kV / mm，介电常数为1.92，介电损耗小于0.003。因此，夹层结构PI膜是用于电子和微电子器件的柔性电路基板的高前瞻性候选。

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来源
《Composite Structures》 |2021年第4期|113305.1-113305.9|共9页
作者
Zhang Panpan; Zhang Ke; Chen Xi; Dou Shuliang; Zhao Jiupeng; Li Yao;
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作者单位

Taiyuan Univ Sci & Technol Jincheng Campus Jincheng 048011 Peoples R China;

Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Peoples R China;

Harbin Inst Technol Ctr Composite Mat & Struct Harbin 150001 Peoples R China;

Harbin Inst Technol Ctr Composite Mat & Struct Harbin 150001 Peoples R China;

Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Peoples R China;

Harbin Inst Technol Ctr Composite Mat & Struct Harbin 150001 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Polymer-matrix composites (PMCs); Sandwich material; Dielectricity; Mechanical properties;

机译：聚合物 - 基质复合材料（PMC）;夹层材料;介电;机械性能;

Mechanical, dielectric and thermal properties of polyimide films with sandwich structure

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