INVESTIGATIONS INTO THE USE OF SHORT DURATION DMA ANALYSIS TO PREDICT THE CREEP OF PTFE UNDER LOW TENSILE LOADS

机译：使用短时间DMA分析预测低拉伸载荷下PTFE蠕变的研究

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The tensile creep of polytetrafluoroethylene wasrnevaluated when subjected to relatively low loads. Therncurrent investigation used very low loads (less thanrn5 Newtons) and evaluated the effects of creeprncompared to predictions postulated from dynamicrnmechanical analysis (DMA) time temperaturernsuperposition (TTS) techniques. Results from therninvestigation showed that at high temperatures (abovern130℃) a correlation between long term predictions andrnDMA derived acceleration factors could be achievedrnprovided TTS was based upon loss modulus data ratherrnthan storage modulus. This paper will report the datarnobtained along with comparisons between the data andrnsupporting investigations utilised to define the thermalrndomain where the analysis is valid.

机译：聚四氟乙烯的拉伸蠕变在相对较低的载荷下进行了评估。当前的研究使用了非常低的负载（小于5牛顿），并与动态力学分析（DMA）时间温度叠加（TTS）技术所假定的预测相比，评估了蠕变的影响。研究结果表明，在高温（130℃以上）的条件下，TTS基于损耗模量数据而不是储能模量，可以实现长期预测与DMA推导的加速因子之间的相关性。本文将报告获得的数据以及数据和支持调查之间的比较，这些调查用于定义分析有效的热域。

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《12th international symposium on materials in the space environment》|2012年|1-6|共6页
会议地点 Noordwijk(NL)
作者
J.R. Williamson; P. Simon-Bouteman; C. Fotea; C.Semprimoschnig;
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Materials Space Evaluation Radiation Effects Section, ESTEC, European Space Agency, Postbus 299, 2200 AG, Noordwijk zh, The Netherlands, jason.williamson@esa.int;

Materials Space Evaluation Radiation Effects Section, ESTEC, European Space Agency, Postbus 299, 2200 AG, Noordwijk zh, The Netherlands;

Materials Space Evaluation Radiation Effects Section, ESTEC, European Space Agency, Postbus 299, 2200 AG, Noordwijk zh, The Netherlands;

Materials Space Evaluation Radiation Effects Section, ESTEC, European Space Agency, Postbus 299, 2200 AG, Noordwijk zh, The Netherlands;

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INVESTIGATIONS INTO THE USE OF SHORT DURATION DMA ANALYSIS TO PREDICT THE CREEP OF PTFE UNDER LOW TENSILE LOADS

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