Thermoplastic composite membrane and production technology thereof

• Main Authors: GE ZHENZONG, WANG YUEJIE, SUN ZIQUAN
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2020
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a thermoplastic composite membrane. The thermoplastic composite membrane comprises a nanoscale titanium dioxide layer, a polyethylene glycol terephthalate layer, a modified polypropylene layer, a polyethylene glycol terephthalate layer and a nanoscale titanium dioxide layer. The thicknesses of the two nanoscale titanium dioxide layers range from 10 micrometers to 15 micrometers, the thicknesses of the two polyethylene glycol terephthalate layers range from 15 micrometers to 18 micrometers, and the thickness of the modified polypropylene ranges from 25 micrometers to 50micrometers. The modified polypropylene layer is obtained in the mode that modified polypropylene is cast by a casting machine, and the modified polypropylene is obtained in the mode that by weight, 15-25 parts of high-density polyethylene and 75-85 parts of polypropylene are mixed and subjected to melt blending extrusion by a double-screw extruder. The problem that an existing polypropylene composite membrane is poor in