Double-layer coextrusion casting film

• Main Author: LIN FULIANG
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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

The invention discloses a double-layer coextrusion casting film which comprises a PET layer and a PP layer. PP plastic particles comprise PP, trihydroxy polyoxypropylene ether, N,N'-(4,4'-methylene diphenyl)bismaleimide, trimethylolpropane trimethacrylate, 4,4'-dyhydroxyl diphenyl sulfide, montmorillonite, paraffin, antioxidant 1010, nano TiO2, polyether siloxane copolymer, methyl hydroxyethyl cellulose and VTPS silane coupling agent. PET plastic particles comprise terephthalic acid, ethylene glycol, maleic anhydride, 2-nitroterephthalic acid-4-methyl ester, 2,2-dimethyl-1,3-propylene glycol, 2,3-dibromo-2-butene-1,4-glycol, 1,4-benzene dimethanol, 2-aminoterephthalic acid, tetrabromo terephthalic acid, bis(2-ethyl hexyl)terephthalic acid, 4-bromo phthalic anhydride, 2,2-difluoro-1,3-benzodioxole, magnesium fluosilicate and antibacterial agent. By the combining of the PP layer and the PET layer, the whole composite film is high in barrier property, antibacterial and flame-retardant. 本发明公开了种双层共挤流延膜，包括PET层和PP层，