Environment-friendly production technology for composite PE pipe with low energy consumption

Abstract

The invention discloses an environment-friendly production technology for a composite PE pipe with low energy consumption. The production technology comprises the following steps: PE raw materials containing antiscaling masterbatch and antibacterial masterbatch are mixed and added to an inner-layer extruder, 5%-10% of nano-modified bamboo charcoal plastic particles are added to PE resin and uniformly mixed, the mixture is directly added to an outer-layer extruder, a pipe is extruded out by a multi-layer co-extrusion mold head and treated by a vacuum chamber, a cooling water tank, a tractor and a cutting machine, and the composite PE pipe is prepared. The production technology is simple and convenient to operate, high in practicability, low in cost and environment-friendly, the dispersity of the nano-modified bamboo charcoal plastic particles is good, the property is stable, by means of the inner layer set as an antiscaling and antibacterial layer, the friction coefficient of the inner wall of the pipe is reduced, the inside of the pipe is not prone to scaling, bacteria breeding is prevented, water safety is improved, the nano-modified bamboo charcoal plastic particles adopted by the outer layer of the composite pipe have antiaging and antibacterial effects, and the composite PE pipe has higher practical application value and broader market development prospect.

Description

technical field [0001] The invention belongs to the technical field of pipe processing, and in particular relates to an environment-friendly composite low-energy consumption PE pipe production process. Background technique [0002] PE pipe is a high crystallinity, non-polar thermoplastic resin pipe, because PE pipe is non-toxic, tasteless, odorless, good cold resistance, heat resistance and chemical stability, high rigidity and toughness, and mechanical With many advantages such as good performance and convenient installation, it is widely used in the fields of building water supply and drainage, buried drainage pipes, gas pipelines and telecommunications engineering. However, when PE pipes are stored or used in the open air, under the action of ultraviolet light, they are prone to aging, discoloration, brittleness and even pulverization, thus losing their mechanical properties and affecting the use of PE pipes. Therefore, it is necessary to improve PE pipes so that It has ...

AI Technical Summary

Problems solved by technology

For improving the antibacterial and bacteriostatic effects of PE pipes, the existing technology is mainly realized by adding inorganic antibacterial agents such as silver, copper, zinc, titanium, etc. Although simple inorganic antibacterial agents have good thermal stability, they cannot be used in plastic extrusion and processing It will not decompose and deteriorate during the process, but long-term drinking of drinking water containing inorganic antibacterial agents such as silver, copper, zinc, and titanium will have a negative impact on the human liver, so this also limits the application of inorganic antibacterial agents , the use of organic antibacterial agents instead of inorganic antibacterial agents has become a current research hotspot and development trend