On the formation of defects induced by air trapping during cold pressing of PTFE powder
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- 作者：Otá ; vio C. Gambonia ; c ; Cassius Riulb ; René ; Billardonc ; Waldek W. Bose Filhoa ; Nicolas Schmittc ; d ; Rodrigo B. Cantoe ; rbcanto@ufscar.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Polytetrafluoroethylene (PTFE) ; Polymer powder pressing ; Air trapping defects
- 刊名：Polymer
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：82
- 期：Complete
- 页码：75-86
- 全文大小：3798 K
文摘
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The entrapped air plays a major role in the defects formation in the sintered PTFE.
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An analytical model was used to predict the formation of defects on green material.
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Mechanical properties of the PTFE pressed with air extraction was greatly enhanced.
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Presence of warts on the fracture surface reveals processing defects in components.