Rheology of Lubricated Polytetrafluoroethylene Compositions - Equipment and Operating Variables.
Rheology of Lubricated Polytetrafluoroethylene Compositions - Equipment and Operating Variables.
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润滑的聚四氟乙烯组合物的流变学-设备和操作变量。
DOI：
10.1021/ie50521a065
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发表时间：
1953
影响因子：
--
通讯作者：
Charles M. Winchester
中科院分区：
文献类型：
--
作者：
E. E. Lewis;Charles M. Winchester
开发了以润滑糊状物形式挤出特氟隆树脂的方法，以获得比通过更常规的高温方法可获得的挤出速率高得多的挤出速率。在Lontz、Jaffe、Robb和Happoldt的论文中，描述了制备润滑组合物的方法和制造带和线覆盖物的一些简单技术。膏体挤出的去杂化继续沿着沿着几条线进行。本文所述工作的目的是更仔细地研究该过程的机理和变量，以达到改进的性能，并允许设计改进的设备。因此，我们不使用恒速涂布机，而是使用简单的流变仪，可以在恒压下挤出单丝。
THE process for extruding Teflon tetrafluoroethylene resin in the form of a lubricated paste was developed to attain extrusion rates appreciably higher than those attainable by the more conventional high temperature processes. In a paper by Lontz, Jaffe, Robb, and Happoldt (%), the methods of preparing the lubricated compositions and some simple techniques for fabricating tapeand wire coverings were described. The de-velopment of paste extrusion has continued along several lines. In the work described here the objective was to investigate more carefully the mechanisms and variables of the process in orderto achieve improved performance and to permit the design of im-proved equipment. Therefore, instead of using a constant-rate wire coater, a simple rheometer was employed in which mono-filaments could be extruded at constant pressure.