High-temperature resistant low-noise drain pipe

Abstract

The invention relates to a high-temperature resistant low-noise drain pipe which consists of an inner layer, a middle layer and an outer layer, the inner layer and the outer layer consist of 50-90% of polypropylene random copolymer, 9-45% of calcium carbonate and 1-5% of masterbatch, the middle layer is made of polymer filling materials, and the main components comprise 20-80% of polypropylene block copolymer, 20-80% of silicon dioxide (or calcium carbonate), 0.3-2% of lubricant and 0.5-5% of masterbatch. The drain pipe can be used under a high temperature environment at about 90 DEG C for a long time, the surfaces of the inner layer and the outer layer are very smooth, the calcium carbonate is added in the middle layer for playing the role of absorbing sound, thereby effectively reducing the noise when being passed by water flow; furthermore, the raw materials do not contain lead, barium and other harmful substances, thereby being more conductive to meeting the requirements of people on sanitation and environmental protection.

Description

technical field [0001] The invention relates to a drainage pipe used in construction and industrial fields, in particular to a low-noise drainage pipe capable of high temperature resistance. technical background [0002] At present, people generally use PVC pipes as drainage pipes in the construction field and industrial field, and a large number of PVC pipes are also used as water supply and drainage pipes in houses where people live. However, it is found that the impact resistance of existing PVC pipes is generally poor in use. In the process of use, it is very easy to be damaged by external force factors, which will seriously cause the rupture of the water pipe. Lead, barium and other substances that are harmful to the human body are used, and long-term use will cause serious damage to people's health, so its environmental performance is also poor. At the same time, with the continuous changes in people's lives, the use of high-temperature hot water Many, the drainage te...

AI Technical Summary

Problems solved by technology

[0002] At present, people generally use PVC pipes as drainage pipes in the construction field and industrial field, and a large number of PVC pipes are also used as water supply and drainage pipes in houses where people live. However, it is found that the impact resistance of existing PVC pipes is generally poor in use. In the process of use, it is very easy to be damaged by external force factors, which will seriously cause the rupture of the water pipe. Lead, barium and other substances that are harmful to the human body are used, and long-term use will cause serious damage to people's health, so its environmental performance is also poor. At the same time, with the continuous changes in people's lives, the use of high-temperature hot water Many, the drainage temperature of the current household dishwashers is generally around 90°C, and since the Vicat softening point of PVC pipes is generally around 80°C, it is easy to deform the PVC pipes, causing water to flow out of the pipes. overflow, causing inconvenience to people's lives

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