PVDF-based composite film with double-layer structure and preparation method of PVDF-based composite film

The invention relates to a PVDF-based composite film with a double-layer structure and a preparation method of the PVDF-based composite film. The method comprises the following steps that Na0.5Bi4.5Ti4O15, Na2CO3 and TiO2 are calcined in molten salt at 900-1000 DEG C, and then impurities are removed...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DANG ZHEN'ER, HU RENRUI, YANG HAIBO, MA YONGZHEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a PVDF-based composite film with a double-layer structure and a preparation method of the PVDF-based composite film. The method comprises the following steps that Na0.5Bi4.5Ti4O15, Na2CO3 and TiO2 are calcined in molten salt at 900-1000 DEG C, and then impurities are removed to obtain Na0.5Bi0.5TiO3 crystals; na0.5Bi0.5TiO3 crystals and PVDF powder are uniformly dispersed in an organic solvent, the volume ratio of the Na0.5Bi0.5TiO3 crystals to the PVDF powder is 3%-9%, and a turbid liquid is obtained; the PVDF powder is uniformly dispersed in an organic solvent to obtain a PVDF solution; and the turbid liquid and the PVDF solution are sequentially subjected to film forming through a tape casting method, a compound is obtained, the compound is subjected to heat preservation for 7-9 min at the temperature of 195-205 DEG C and then quenched in water at the temperature of 0-5 DEG C, and the PVDF-based composite film of the double-layer structure is obtained. 本发明一种双层结构的PVDF基复合薄膜及其制备方法，该方法