Abstract

The multifunctional properties of cross-liked carboxymethlycellulose (CMC) and polyethyleneimine (PEI) films with varied CMC:PEI ratios and Ag flake sizes were studied. Both the CMC and PEI were cross-linked through a sonication process to achieve dispersive equilibrium. Fourier-transform infrared spectroscopy (FT-IR) was used to identify the functional groups in the sample material, with thermogravimetric analysis and differential scanning calorimetry used to investigate the overall thermal behavior of the CMC–PEI cross-linked films. Thermal diffusivity and thermal conductivity were also analyzed using laser flash analysis. To analyze the effects of Ag flakes as a filler material, the distribution of the Ag flakes within the film was determined using scanning electron microscopy. The thermal conductivity and resistance of the CMC films increased when cross-linked with 20% PEI. The electrical and thermal properties of the films also improved with the addition of Ag flakes.

Graphic Abstract

The multifunctional properties of cross-liked carboxymethlycellulose and polyethyleneimine films with varied CMC:PEI ratios and Ag flake sizes were studied. The thermal, electrical and mechanical properties of solder joints were investigated by using various kinds of tests.

中文翻译：

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使用CMC / PEI交联工艺制备新型Ag片状复合膜

摘要

研究了十字形羧甲基纤维素（CMC）和聚乙烯亚胺（PEI）膜具有不同的CMC：PEI比和Ag薄片尺寸的多功能特性。CMC和PEI都通过超声处理交联，从而达到分散平衡。傅里叶变换红外光谱（FT-IR）用于鉴定样品材料中的官能团，而热重分析和差示扫描量热法则用于研究CMC-PEI交联膜的整体热行为。还使用激光闪光分析法分析了热扩散率和热导率。为了分析银薄片作为填充材料的效果，使用扫描电子显微镜确定薄膜中银薄片的分布。当与20％PEI交联时，CMC薄膜的导热率和电阻增加。通过添加银薄片，薄膜的电和热性能也得到了改善。

图形摘要

研究了具有不同CMC：PEI比和Ag薄片尺寸的十字形羧甲基纤维素和聚乙烯亚胺薄膜的多功能特性。通过各种测试研究了焊点的热，电和机械性能。