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Minimizing silicone transfer during micro-contact printing

机译:在微接触印刷过程中最大程度地减少硅酮的转移

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摘要

Methods to minimize the transfer of silicone from PDMS stamps during micro-contact printing have been investigated. This study focused on amino-silanes stamped onto PTFE substrates. Analysis of the stamped surfaces was through surface sensitive techniques such as XPS and time-of-flight secondary ion mass spectroscopy (TOF-SIMS). It was found that curing the PDMS at elevated temperatures minimized the amount of silicone transferred. The amount of silicone transferred also depended on the pretreatment of the stamp and the type of ink used.
机译:已经研究了在微接触印刷过程中最小化PDMS印模中有机硅转移的方法。这项研究的重点是冲压在PTFE基材上的氨基硅烷。通过表面敏感技术(例如XPS和飞行时间二次离子质谱(TOF-SIMS))对冲压表面进行分析。发现在升高的温度下固化PDMS使转移的硅氧烷的量最小化。转移的硅酮的量还取决于印章的预处理和所用墨水的类型。

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