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Three-layer co-extrusion mute drain pipe as well as preparation method and application thereof

A technology of three-layer co-extrusion and drainage pipes, which is applied in applications, other household appliances, chemical instruments and methods, etc., can solve the problems that silent pipes cannot have a good quiet effect at the same time, and are not easy to age and deteriorate, so as to meet the requirements of rapid construction, It is not easy to age, and the effect of improving compactness and density

Pending Publication Date: 2021-07-09
陕西联塑科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing silent pipes that cannot simultaneously have a good sound effect and be not easy to age and deteriorate, and provide a three-layer co-extruded silent drainage pipe. Through the reasonable configuration of the components of each layer, While ensuring the mute effect, it also improves the internal molecular structure of the pipe, increases the compactness and density of the pipe, and significantly increases the softening temperature of the pipe.

Method used

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  • Three-layer co-extrusion mute drain pipe as well as preparation method and application thereof
  • Three-layer co-extrusion mute drain pipe as well as preparation method and application thereof
  • Three-layer co-extrusion mute drain pipe as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A three-layer co-extruded silent drainage pipe, comprising an outer layer, a middle core layer, and an outer layer; the outer layer includes components calculated in parts by weight: 40 parts of polypropylene, 1 part of color masterbatch, and 8 parts of phenolic antioxidant agent and 0.15 parts of calcium zinc stabilizer;

[0037] The middle core layer includes components calculated in parts by weight: 7 parts of polypropylene resin, 2 parts of calcium carbonate and 0.01 part of defoamer;

[0038] The inner layer includes components calculated in parts by weight: 45 parts of polypropylene and 0.3 part of white masterbatch.

[0039] The preparation method of the above-mentioned three-layer co-extruded silent drainage pipe comprises the following steps:

[0040] After heating the inner layer raw materials to a temperature of 190°C, melt and extrude the linear raw materials through a granulator, pass through an automatic pelletizer after cooling through water to form inne...

Embodiment 2

[0044] A three-layer co-extruded silent drainage pipe, comprising an outer layer, a middle core layer, and an outer layer; the outer layer includes components calculated in parts by weight: 35 parts of polypropylene, 0.5 parts of color masterbatch, and 7 parts of phenolic antioxidant agent and 0.05 parts of calcium zinc stabilizer;

[0045] The middle core layer includes components calculated in parts by weight: 1 part of broken pipe material of three-layer co-extruded silent drainage pipe, 0.5 part of barium sulfate and 0.01 part of defoamer;

[0046]The inner layer includes components calculated in parts by weight: 60 parts of polypropylene and 1.3 parts of white masterbatch.

[0047] The preparation method of the above-mentioned three-layer co-extruded silent drainage pipe comprises the following steps:

[0048] After heating the inner layer raw materials to a temperature of 180°C, melt and extrude the linear raw materials through a granulator, pass through an automatic pe...

Embodiment 3

[0052] A three-layer co-extruded silent drainage pipe, comprising an outer layer, a middle core layer, and an outer layer; the outer layer includes components calculated in parts by weight: 45 parts of polypropylene, 1.5 parts of color masterbatch, and 9 parts of phenolic antioxidant agent and 0.15 parts of calcium zinc stabilizer;

[0053] The middle core layer includes components calculated in parts by weight: 8 parts of polypropylene resin, 3 parts of calcium carbonate and 0.015 parts of defoamer;

[0054] The inner layer includes components calculated in parts by weight: 50 parts of polypropylene and 1 part of white masterbatch.

[0055] The preparation method of the above-mentioned three-layer co-extruded silent drainage pipe comprises the following steps:

[0056] The raw material for the inner layer is polypropylene granules plus white masterbatch. After the above material is heated to a temperature of 200°C, the linear raw material is melted and extruded through a gra...

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Abstract

The invention discloses a three-layer co-extrusion mute drain pipe and a preparation method and an application thereof. The components of a three-layer structure are improved, and a sound absorption viscoelastic inorganic material and a defoaming agent are added to a middle core layer, so that sound waves generated in the water flow process can be absorbed, sound is prevented from being spread outwards, and the good noise reduction and mute effects are achieved; according to the present invention, the internal molecular structure of the pipe is improved, the compactness and the density of the pipe are improved, the softening temperature of the pipe is significantly increased, the pipe is not easily aged under the long-term sunlight exposure, the service life is long, the modulus is high, the pipe has high ring stiffness and strong acid-base corrosion resistance, the acid resistance can achieve pH2, the alkali resistance can achieve pH12, and the liquid with the pH2-pH12 can be arbitrarily discharged. According to the three-layer co-extrusion mute drain pipe, the materials of the inner layer, the outer layer and the middle layer are reasonable in proportion, the service life is long, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a three-layer co-extruded silent drainage pipe and its preparation method and application. Background technique [0002] With the continuous improvement of people's living standards, people's requirements for the living environment of buildings are getting higher and higher. Noise pollution has a great impact on human daily life. Three-layer co-extruded silent drainage pipes are born. This kind of pipe can be It absorbs the sound waves generated when the water flows through and prevents the sound from spreading outward. It is widely used in schools and hospitals through its superior quietness, corrosion resistance, high temperature resistance, good impact resistance, realistic flexible connection, and environmental protection. , large conference rooms, residences and other places with high drainage requirements, and successfully solved all drainage problems. [0003] Chine...

Claims

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Application Information

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IPC IPC(8): B32B1/08B32B27/32B32B27/06B32B27/18C08L23/12C08K3/26
CPCB32B1/08B32B27/32B32B27/08B32B27/18C08L23/12C08K3/26B32B2307/102B32B2307/714B32B2597/00C08K2003/265C08L2203/18
Inventor 张秀波雷喾褚绥红
Owner 陕西联塑科技实业有限公司
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