Co-extruded self-adhesive biodegradable barrier composite film and preparation method thereof

The invention discloses a co-extruded self-adhesive biodegradable barrier composite film which comprises a middle layer and protective outer layers arranged on two opposite side surfaces of the middle layer, the protective outer layer is attached to the middle layer in a self-adhesion mode. The midd...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ZHOU YONG, LIU SHUYANG, LU SHENGLOU, LU TICHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES 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 PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a co-extruded self-adhesive biodegradable barrier composite film which comprises a middle layer and protective outer layers arranged on two opposite side surfaces of the middle layer, the protective outer layer is attached to the middle layer in a self-adhesion mode. The middle layer is made of polyvinyl alcohol which can be subjected to thermoplastic processing; and the protective outer layer is prepared from a polybutylene terephthalate adipate/polylactic acid composite material grafted and modified by maleic anhydride. According to the invention, polyvinyl alcohol which can be subjected to thermoplastic processing is used as the middle layer; the maleic anhydride grafted and modified poly (butylene adipate terephthalate)/polylactic acid composite material is used as the protective outer layer, so that the excellent barrier property of the middle layer can be effectively ensured, the production cost of the composite film can be reduced, and biodegradation can be realized. 本发明公开了一种共挤出