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Polypropylene ultra-silence pipeline and preparation method thereof

A polypropylene, ultra-quiet technology, applied in chemical instruments and methods, tubular articles, other household appliances, etc., can solve the problems of poor dispersion compatibility of inorganic fillers, limited mute effect of pipes, and reduced mechanical properties of pipes, etc. Achieve good mute effect and mechanical properties, excellent heat resistance and chemical resistance, and improve compatibility.

Active Publication Date: 2021-09-21
浙江中财管道科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the limited sound effect of the pipe when adding inorganic fillers such as talcum powder and barium sulfate in the prior art to improve the sound effect of the polypropylene pipe; and due to the dispersibility of the inorganic filler and the compatibility with the polypropylene matrix Poor, resulting in many internal defects of the pipe, which will reduce the mechanical properties of the pipe, which is not conducive to the application of the pipe. A polypropylene ultra-quiet pipe and its preparation method are provided. The middle layer and the inner layer of the polypropylene substrate are connected Branch metal organic framework materials, metal organic framework materials with a hollow porous structure can effectively improve the quiet effect of polypropylene materials, and at the same time can make the pipes have good mechanical properties, so that the pipes can meet the use requirements in various complex environments

Method used

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  • Polypropylene ultra-silence pipeline and preparation method thereof
  • Polypropylene ultra-silence pipeline and preparation method thereof
  • Polypropylene ultra-silence pipeline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A polypropylene ultra-quiet pipe, such as figure 1 As shown, the pipe wall includes an outer layer 1, a middle foam layer 2, and an inner reinforcement layer 3 arranged in sequence, and the inner wall of the inner reinforcement layer is provided with 6 spiral reinforcements uniformly arranged along the inner wall and integrally formed with the inner reinforcement layer. tendon 4. Among them, the thickness of the outer layer is 1mm, the thickness of the middle reinforcement layer is 4mm, the thickness of the inner reinforcement layer is 1mm, the height of the reinforcement rib is 3mm; the inner diameter of the pipe is 12mm.

[0038] In parts by weight, the components of the outer layer material include: 85 parts of polypropylene copolymer (Sinopec EPS30R), 2 parts of PP masterbatch (Shenzhen Daxing Chemical Co., Ltd.), 2 parts of calcium stearate, and 1010 parts of antioxidant 0.8 parts, UV-531 0.3 parts; the components of the middle foam layer material include: 85 part...

Embodiment 2

[0049] A polypropylene ultra-quiet pipe, the pipe wall includes an outer layer, a middle foam layer and an inner reinforcement layer arranged in sequence, and the inner wall of the inner reinforcement layer is provided with 5 helical pipes uniformly arranged along the inner wall and integrally formed with the inner reinforcement layer. of stiffeners. Among them, the thickness of the outer layer is 2mm, the thickness of the middle reinforcement layer is 3mm, the thickness of the inner reinforcement layer is 1mm, the height of the reinforcement rib is 4mm; the inner diameter of the pipe is 12mm.

[0050] In parts by weight, the components of the outer layer material include: 80 parts of copolymerized polypropylene (Sinopec EPS30R), 1 part of PP masterbatch (Shenzhen Daxing Chemical Co., Ltd.), 1 part of calcium stearate, and 1010 parts of antioxidant 0.5 parts, UV-531 0.2 parts; the components of the middle foam layer material include: 80 parts of metal-organic framework grafted...

Embodiment 3

[0061] A polypropylene ultra-quiet pipe, the pipe wall includes an outer layer, a middle foam layer, and an inner reinforcement layer arranged in sequence, and the inner wall of the inner reinforcement layer is provided with 6 helical pipes uniformly arranged along the inner wall and integrally formed with the inner reinforcement layer. of stiffeners. Among them, the thickness of the outer layer is 1mm, the thickness of the middle reinforcement layer is 5mm, the thickness of the inner reinforcement layer is 1mm, the height of the reinforcement rib is 5mm; the inner diameter of the pipe is 12mm.

[0062] In parts by weight, the components of the outer layer material include: 90 parts of copolymerized polypropylene (Sinopec EPS30R), 3 parts of PP masterbatch (Shenzhen Daxing Chemical Co., Ltd.), 3 parts of calcium stearate, and 1010 parts of antioxidant 0.5 parts, 0.5 parts of antioxidant 168, 0.5 parts of UV-531; the components of the middle foam layer material include: 90 part...

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Abstract

The invention discloses a polypropylene ultra-silence pipeline and a preparation method thereof. A pipe wall comprises an outer layer, a middle foaming layer and an inner reinforcing layer which are sequentially arranged; the material of the outer layer comprises polypropylene, and the material of the middle foaming layer comprises polypropylene grafted by a metal organic framework material, and a foaming agent; the material of the inner reinforcing layer comprises polypropylene grafted by a metal organic framework material, and a plurality of spiral reinforcing ribs are arranged on the inner wall of the inner reinforcing layer. The metal organic framework material is grafted on the polypropylene matrixes of the middle layer and the inner layer, the metal organic framework material with the hollow porous structure can effectively improve the mute effect of the polypropylene material, meanwhile, the pipe can have good mechanical property, and the pipe can meet the use requirements in various complex environments.

Description

technical field [0001] The invention relates to the technical field of polypropylene pipes, in particular to a polypropylene ultra-quiet pipe and a preparation method thereof. Background technique [0002] In recent years, with the continuous improvement of people's living standards in our country, the majority of residents have higher and higher requirements for the quality of the living room environment, and the noise problem of building drainage pipes has attracted more and more attention. According to the provisions of the national standard GBJ118-2010: (taking residences as an example) the noise in the bedroom at night shall not exceed 30dB, and the maximum shall not exceed 40dB. In actual tests, the noise generated by most drainage pipes and fittings is far greater than 40dB. In engineering examples, there is no shortage of noises from pipelines that disturb residents' sleep and produce annoyance effects, as well as neurasthenia and other non-specific diseases caused ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B3/30B32B27/32B32B27/06B32B27/18C08G81/02
CPCB32B1/08B32B3/30B32B27/32B32B27/065B32B5/18B32B27/18C08G81/024B32B2266/025B32B2307/10B32B2307/306B32B2307/50B32B2307/714B32B2307/7145B32B2597/00
Inventor 潘海勇王百提王辉吕新均杨钰华
Owner 浙江中财管道科技股份有限公司
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