Flame retardant and high temperature resistant reinforced polypropylene silent drainage pipe and its application

Abstract

The invention discloses a flame-retardant and high-temperature resistant polypropylene silent drain pipe. The drain pipe comprises an inner layer, an outer layer and an intermediate layer according toa thickness ratio of (0.5-1.5):(4.5-6.5):(0.5-1.5). The inner layer and the outer layer comprise the following components: 80%-89% of a copolymerized polypropylene, 1%-3% of a masterbatch, 0.5%-1.5%of an antioxidant, 1.5%-3.5% of an ultraviolet absorber, 6%-9% of a bromine compound, 1%-4% of an antimony trioxide, 0.1%-0.2% of a stearate, and 0.5 -%-1.5% of PP compatibilizer; the intermediate layer comprises the following components: 35%-50% of a copolymerized polypropylene, 10%-20% of glass fibers, 30%-35% of a filler, 1%-2% of a masterbatch, 0. 5%-1.5% of an antioxidant, 6%-9% of a brominecompound, 1%-4% of an antimony trioxide, 0.1%-0.2% of a stearate, and 1%-2% of a PP compatibilizer. The drain pipe can be used in the installation of water supply and sewage pipes. The drain pipe hasthe advantages of low cost, flame retardance, high temperature resistance, chemical corrosion resistance, impact resistance, long service life, good mute effect and environmental protection.

Description

technical field [0001] The invention relates to the technical field of water supply and drainage, in particular to a flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe and its application. Background technique [0002] With the continuous improvement of living standards, people have higher and higher requirements for the living environment of buildings. Noise pollution has become the pollution that has the greatest impact on human life after air pollution. According to statistics, the noise intensity in cities is four times higher than that in 1956. As one of the main noise sources of civil buildings, drainage noise seriously affects people's daily life. People expect to have a safe, healthy and comfortable indoor living space. . According to the provisions of the national standard GBJ118-88 "Code for Design of Sound Insulation of Civil Buildings": (taking residential buildings as an example) the noise in the bedroom at night should...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe with simple wall structure and low manufacturing cost, referred to as FRHT-FRPP silent drainage pipe, which can effectively solve the problem of the current drainage pipes with large noise and flame retardant. , high temperature resistance and poor chemical corrosion resistance