Polytetrafluoroethylene fine powder, polytetra fluoroethylene formed article prepared from the same and method for preparation of the same

Polytetrafluoroethylene fine powder, polytetra fluoroethylene formed article prepared from the same and method for preparation of the same

本发明提供了3～30GHz的高频范围下各种电特性和机械特性优异的聚四氟乙烯模塑体，特别是高频绝缘用PTFE模塑体，可以得到该模塑体的具有优异挤出模塑性的PTFE细粉及其制造方法，本发明涉及使标准比重为2.180～2.225的聚四氟乙烯细粉与氟自由基源接触得到的标准比重为2.180～2.225的聚四氟乙烯细粉，将该细粉烘烤后以5～50℃/秒的速度冷却，得到的由所述细粉形成的薄膜在12GHz下的tan δ小于等于2.0×10#+[-4]。...

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Bibliographische Detailangaben
Hauptverfasser: ONO MAKOTO, SIMIZU TETSUO, ASANO MICHIO
Format: Patent
Sprache:chi ; eng
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Zusammenfassung:本发明提供了3～30GHz的高频范围下各种电特性和机械特性优异的聚四氟乙烯模塑体，特别是高频绝缘用PTFE模塑体，可以得到该模塑体的具有优异挤出模塑性的PTFE细粉及其制造方法，本发明涉及使标准比重为2.180～2.225的聚四氟乙烯细粉与氟自由基源接触得到的标准比重为2.180～2.225的聚四氟乙烯细粉，将该细粉烘烤后以5～50℃/秒的速度冷却，得到的由所述细粉形成的薄膜在12GHz下的tan δ小于等于2.0×10#+[-4]。