Highly anisotropic thermal conductivity of mesogenic epoxy resin film through orientation control

被引：12

作者：

Tang, Ning ^{[1
]}

Tanaka, Shingo ^{[1
,2
,3
]}

Takezawa, Yoshitaka ^{[2
]}

Kanie, Kiyoshi ^{[3
]}

机构：

[1] Hitachi Ltd, Res & Dev Grp, 7-1-1 Omika, Hitachi, Ibaraki 3191292, Japan

[2] Showa Denko Mat Co Ltd, Adv Technol Res & Dev Ctr, Tsukuba, Ibaraki, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2021年 / 138卷 / 47期

关键词：

applications; conducting polymers; films; liquid crystals; DIFFUSIVITY MEASUREMENT; POLYMER-FILMS; COMPOSITE; THERMOSETS; POLYDOMAIN; ORDER;

D O I：

10.1002/app.51396

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

To develop insulating materials with a high thermally conductive anisotropy, planarly aligned mesogenic epoxy (ME) resin film was fabricated by uniaxial coating on a hydrophobic polyethylene terephthalate substrate. Grazing incidence small-angle X-ray scattering (GISAXS) and transmission SAXS measurements exhibited that the films spontaneously formed uniaxially aligned monodomain-like smectic structures by curing on the hydrophobic substrate. Then, an in- and out-of-plane thermal conductivity of 10 and 0.048 W m(-1) K-1 and outstanding thermal conductivity anisotropy of 208 have been confirmed, respectively. The ME resin films with high thermal conductivity can be applied as insulating materials for multiple-layer electrical and electronic devices.

引用

页数：8

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