Nano anticorrosive antibacterial plastic metal composite pipe and its manufacturing method

Patent name Nano antiseptic antibacterial plastic metal composite pipe and its manufacturing method Patent applicant Zhang Bo Principal Applicant Address 315201 No.9, Gongsi Road, Zhuangshi Industrial Zone, Zhenhai District, Ningbo, Zhejiang Province Ningbo Zhenhai Xinyin Steel Plastic Pipe Factory Inventor Zhang Bo Application (patent ) No. 200410017330.8 Application date 2004.03.31 Certification date Approval announcement No. 1676540 Approval announcement date 2005.10.05 Manual CD-ROM D0540 Main classification number C08J5/12 Classification number C08J5/12; B32B27/32; F16L9/147 Division Original application number Priority The article abstract includes a nano anticorrosion antibacterial plastic metal composite pipe and a manufacturing method thereof, including a plastic outer layer, a plastic inner layer and a metal layer, and a hot melt adhesive glued between the plastic layer and the metal layer. The manufacturing method includes the following steps: screening - pickling - cleaning - heating of metal pipes - plastic pipe gluing and penetrating into the inner cavity of the metal pipe - setting a mold for manufacturing an outer layer of anticorrosive plastic pipe - sticking a hot melt adhesive - outside the metal pipe Sprayed on anti-corrosion plastic masterbatch - cooling - inspection - packaging - storage. If the metal material of the composite pipe used is a galvanized pipe or a stainless steel pipe, no pickling is required, as long as the cleaning process can be performed. The invention has the advantages that the inorganic nano preservatives are added into the outer layer plastic, thereby effectively preventing the ultraviolet ray from irradiating the plastic and causing the aging phenomenon, thereby greatly prolonging the anticorrosion performance of the outer layer plastic. Another advantage of the present invention is that there are many varieties of composite pipes, that is, various metal pipes can be used as the skeleton. This will bring great benefits to the development of composite pipes and the development of the company. The process for manufacturing such a composite pipe of the present invention is simple and easy to operate. Sovereignty 1, a nano anticorrosion antibacterial plastic metal composite pipe, including a plastic outer layer, a plastic inner layer and a metal layer, and a hot melt adhesive glued between the plastic layer and the metal layer, characterized in that the plastic outer layer and the plastic The formulations of the layers are as follows: The outer layer of plastic is formulated as follows: inorganic nano preservatives: 0.2 to 8% of the weight of the plastic raw materials, coupling agents: 1 to 8% of inorganic nano preservatives, and plasticizers: plastic raw materials 0.1-3% of weight, phenolic antioxidant: 0.3-1.0% of plastic raw material weight; plastic inner layer formulation: inorganic nano-antibacterial agent: 0.1-10% of plastic raw material weight, coupling agent: inorganic The amount of nano-antibacterial agent is 1 to 5%, plasticizer is 0.1 to 2% of the weight of the plastic raw material, and the phenolic antioxidant is 0.3 to 1.0% of the weight of the plastic raw material. International Application International Publication Entering Country Date Patent Agency Ningbo Chengyuan Patent Office Co., Ltd. Agency Address Agent Yuan Zhongwei

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