Method for preparing polytetrafluoroethylene building membrane

The invention provides a method for preparing a polytetrafluoroethylene building membrane. The method comprises the following steps: (1) providing a superfine glass fibre base cloth and a polytetrafluoroethylene dispersion liquid; (2) carrying out heat treatment on the superfine glass fibre base clo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIANG JINHUA, YANG XUDONG, LIU JUN, ZHANG PEIHUA, CHEN NANLIANG, TANG YUSI, GAO QINWEN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention provides a method for preparing a polytetrafluoroethylene building membrane. The method comprises the following steps: (1) providing a superfine glass fibre base cloth and a polytetrafluoroethylene dispersion liquid; (2) carrying out heat treatment on the superfine glass fibre base cloth; (3) soaking the base cloth subjected to the heat treatment and cooled in the polytetrafluoroethylene dispersion liquid; (4) sequentially drying, roasting and sintering the soaked base cloth; and (5) repeating the soaking in the step (3), and the step (4) to prepare the polytetrafluoroethylene building membrane. According to the method provided by the invention, the polytetrafluoroethylene building membrane material is prepared by a method for soaking a coating for many times; and the prepared polytetrafluoroethylene building membrane has the advantages of being high in strength, light in mass, high in flexibility, easy to transport and install, and the like.