Polyethylene water supply pipe with antibacterial performance and preparation method thereof

Abstract

The invention discloses a polyethylene water supply pipe with antibacterial performance. The water supply pipe prepared through the method has good antibacterial performance and reduces secondary pollution in the water delivery process. The polyethylene water supply pipe is prepared from, by mass, 80-100 parts of high-density polyethylene, 10-30 parts of PE 100-grade granules, 4-8 parts of black color masterbatch and 2-3 parts of a compound antibacterial agent, wherein the compound antibacterial agent is a compound system of a silver-zeolite antibacterial agent and a quaternary ammonium salt grafted polyethylene antibacterial agent. The polyethylene water supply pipe has the advantages that the preparation process is simple; by using the compound system of the inorganic antibacterial agent and the organic antibacterial agent, the production cost of the antibacterial polyethylene pipe is reduced, and the polyethylene water supply pipe is broad in antibacterial spectrum, efficient and the like, reduces secondary pollution in the water delivery process and meets the requirement of people for water quality in daily life.

Description

technical field [0001] The invention relates to a polyethylene water supply pipe, in particular to a polyethylene water supply pipe with antibacterial properties and a preparation method thereof. Background technique [0002] In the early days, galvanized steel pipes were mostly used for water supply pipes, but such pipes are easy to corrode and cause water pollution. In recent years, water supply pipes have been gradually replaced by plastic pipes. As people's requirements for water quality are getting higher and higher, polyethylene pipes with excellent antibacterial properties have gradually become the mainstream. [0003] At present, most of the plastic pipes used for water supply are polyethylene pipes, but ordinary polyethylene pipes have weak antibacterial properties and are difficult to achieve antibacterial effects. During long-term use, a considerable number of microorganisms will adhere to and breed on the inner surface of the pipe, causing water pollution. Ordin...

AI Technical Summary

Problems solved by technology

Although silver-containing antibacterial water supply pipe fittings have strong antibacterial ability, their application in pipe products has the following disadvantages: 1. The antibacterial ability is reduced or even invalid due to oxidation and discoloration, and the antibacterial durability is poor

2. The mechanical properties of pipes made of silver-containing masterbatch are greatly reduced, especially the two indicators of tensile strength and elongation at break, thus greatly limiting its application in pressure pipes

3. The cost of silver-containing materials is high, the production cost is too high, and the market promotion is difficult

4. It is not easy for silver-containing PE antibacterial pipes and fittings to meet the hygienic performance requirements

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