Noise reduction and sound absorption drainage pipe and preparation method thereof

Abstract

The invention discloses a noise reduction and sound absorption drainage pipe and a preparation method thereof, and relates to the technical field of new materials. When the noise reduction and sound absorption drainage pipe is prepared, a self-made cross-linking agent is added into polyvinyl chloride, and cross-linking is carried out under the closed condition of ultraviolet irradiation; a homemade cross-linking agent is maleic anhydride modified ethyl cellulose, and the homemade cross-linking agent and a polyvinyl chloride cross-linking network jointly enhance the heat resistance of polyvinyl chloride; crosslinking is carried out under the closed condition of ultraviolet irradiation, so that the crosslinking density of polyvinyl chloride is increased, and the drainage pipe has sound absorption performance; and the cross-linked polyvinyl chloride is extruded into a pipe to obtain a drainage pipe base body, the drainage pipe base body is soaked in the modified polyvinyl chloride composite emulsion, then a layer of hydrophilic film is continuously formed on the inner wall and the outer wall of the drainage pipe under ultraviolet irradiation, and the hydrophilic film on the inner side reduces deposition of oil stains on the surface of the drainage pipe. The noise reduction and sound absorption drainage pipe prepared by the invention has noise-reducing and sound-absorbing properties, the heat resistance is enhanced, and deposition of oil stains on the surface of the drainage pipe can be reduced.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a noise-reducing and sound-absorbing drainage pipe and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a low-cost and widely used general-purpose plastic, and it is more and more used in the fields of construction, water supply and drainage. In China, in order to reduce costs, many manufacturers fill PVC drainage pipes with a large amount of calcium carbonate, which significantly deteriorates the toughness of the product. Due to the high density of calcium carbonate, the weight of PVC drainage pipes is heavy, and it almost becomes a PVC drainage pipe. Negative image, at the same time, most of the PVC drainage pipes are laid in the exposed way, the sound insulation performance is poor, when there is water flowing in the pipe, there will be a rushing water flow sound, especially at night, the sound is more obvious, the noise problem is more prominent, ...

AI Technical Summary

Problems solved by technology

In China, in order to reduce costs, many manufacturers fill PVC drainage pipes with a large amount of calcium carbonate, which significantly deteriorates the toughness of the product. Due to the high density of calcium carbonate, PVC drainage pipes are heavy and break when dropped Negative image, at the same time, most of the PVC drainage pipes are laid in the exposed way, the sound insulation performance is poor, when there is water flowing in the pipe, there will be a rushing water flow sound, especially at night, the sound is more obvious, the noise problem is more prominent, directly affecting It disrupts people's normal life and does not conform to the development trend of PVC drain pipe noise reduction and energy saving