Preparation method of anti-aging and anti-bacterial PE pipe

Abstract

The invention discloses a preparation method of an anti-aging and anti-bacterial PE pipe. The preparation method comprises the following steps: adding 3-8% of nano-modified bamboo charcoal plastic particles into PE resin, uniformly mixing, heating to 170-210 DEG C, then extruding by a twin-screw extruder, cooling and performing vacuum shaping to obtain the anti-aging and anti-bacterial PE pipe. The core of the invention is that the nano-modified bamboo charcoal plastic particles are adopted to replace carbon black and an inorganic metal antibacterial agent, so that the PE pipe has good anti-aging and anti-bacterial performances. The preparation method disclosed by the invention has the advantages of strong practicality, low cost, greenness and environmental friendliness, the nano-modified bamboo charcoal plastic particles have good dispersibility and stable natures, and the obtained PE pipe has excellent anti-aging and anti-bacterial performances, as well as relatively strong actual application value and market development prospects.

Description

technical field [0001] The invention relates to a preparation method of a PE pipe, and the prepared PE pipe has good anti-aging and antibacterial properties. Background technique [0002] PE pipe is a thermoplastic resin pipe with high crystallinity and non-polarity. 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. [0003] 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, PE pipes need to be improved. It has good anti-aging performance, prolongs ...

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