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首页> 外文期刊>Journal of Applied Polymer Science >Electrical properties of conductive adhesives as affected by particle compositions, particle shapes, and oxidizing temperatures of copper powders in a polymer matrix
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Electrical properties of conductive adhesives as affected by particle compositions, particle shapes, and oxidizing temperatures of copper powders in a polymer matrix

机译：导电粘合剂的电性能受聚合物基质中铜粉的颗粒组成，颗粒形状和氧化温度的影响

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摘要

The effects of particle compositions, particle shapes, and oxidation temperatures on the electrical properties of conductive adhesives have been investigated. Silver-coated copper powders and uncoated copper powders with spherical and flake-shaped particles are oxidized at temperatures such as 30, 175, 240, 300degreesC and 350degreesC for 2 h and dispersed in an epoxy matrix. The results of this study indicate that the electrical properties of the conductive adhesives are strongly affected by the particle compositions and oxidation temperatures and only slightly affected by the particle shapes. Silver-coated copper powders show significantly greater oxidation resistance than uncoated copper powders. To understand how silver-coated copper powders show such oxidation resistance, they are analyzed by the techniques of thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Auger spectroscopy to observe how metal oxides such as AgO, Cu2O, and CuO affect the electrical properties of the conductive adhesives. (C) 2004 Wiley Periodicals, Inc.
机译：已经研究了颗粒组成，颗粒形状和氧化温度对导电胶粘剂电学性能的影响。具有球形和片状颗粒的涂银铜粉和未涂铜粉在30、175、240、300℃和350℃等温度下氧化2小时，然后分散在环氧基质中。这项研究的结果表明，导电粘合剂的电性能受颗粒组成和氧化温度的强烈影响，而受颗粒形状的影响很小。涂银的铜粉比未涂的铜粉显示出明显更高的抗氧化性。为了了解镀银的铜粉如何表现出这种抗氧化性，可通过热重分析（TGA），X射线衍射（XRD）和俄歇光谱技术对其进行分析，以观察金属氧化物（例如AgO，Cu2O和CuO）如何影响导电粘合剂的电性能。 （C）2004年Wiley Periodicals，Inc.

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