Anti-bacterial and anti-aging PP-R pipe and preparation method thereof

Abstract

The invention provides an anti-bacterial and anti-aging PP-R pipe and a preparation method thereof. The PP-R pipe is composed of, by weight, 75-90% of polypropylene random copolymer, 3-19.5% of natural antibacterial agent, 1.2-3% of peony seed oil and 0.8-2.5% of coupling agent. The natural antibacterial agent is prepared from, by weight, 75-85% of loess powder, 3-6% of macaranga tanarius leaf extract, 5-9% of Syzygium buxifolium leaf extract and 7-10% of sugarcane leaf extract. In this way, the PP-R pipe which is prepared through various processing means has the effects of being wide in anti-bacterial spectrum, high in efficiency, lasting and safe, is endowed with anti-aging performance and heat resistance, has higher mechanical property and machinability, is not prone to deformation or cracks, and is long in service life. The PP-R pipe is bright and smooth in surface and small in water flow resistance, and water scales and impurities can hardly be accumulated in the pipe; due to the far infrared radiation effect, the self-cleaning, environment purification and odor eliminating effects are achieved, water quality is improved, and human health index is increased.

Description

Technical field [0001] The invention relates to a plastic pipe, in particular to an antibacterial and aging-resistant PP-R pipe and a preparation method thereof. Background technique [0002] Before the 1980s, the water supply system in construction projects basically used galvanized steel pipes. Because galvanized steel pipes were prone to rust, the water quality became "red water" and "black water". Explicitly eliminated. my country has begun to systematically study the use of plastic pipes in construction projects, and has successively developed PP-R pipes, PE-X pipes, PB pipes and UPVC pipes. Among them, PP-R pipe is made of random copolymer polypropylene pipe material through extrusion processing. It has the advantages of light weight, chemical stability, corrosion resistance, good impact resistance, no corrosion, and easy installation. It is widely used Used in water supply, drainage, heating and other fields of construction, municipal administration, industry and agricul...

AI Technical Summary

Problems solved by technology

However, most of the known antioxidants are small molecular compounds with certain toxicity, which are easy to migrate to the surface of PP-R pipes, which will not only reduce its anti-aging effect, but also cause secondary pollution to water, failing to achieve hygiene and safety. Basic requirements for health