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.

中文翻译：

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通过取向控制实现介晶环氧树脂薄膜的高各向异性热导率

为了开发具有高导热各向异性的绝缘材料，平面排列的介晶环氧树脂 (ME) 树脂膜通过在疏水性聚对苯二甲酸乙二醇酯基板上单轴涂覆制造。掠入射小角 X 射线散射 (GISAXS) 和透射 SAXS 测量表明，薄膜通过在疏水基材上固化而自发形成单轴排列的类单畴近晶结构。然后，分别确认了10和0.048 W m ^-1  K ^-1的面内和面外热导率以及208的出色热导率各向异性。具有高导热性的ME树脂薄膜可用作多层电气和电子器件的绝缘材料。