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Water supply pipe material and preparation method thereof

A kind of pipe material and common technology, which is applied in the field of residential water supply pipe materials, can solve the problems of unfavorable water quality cleanliness, short service life, high price, etc., to delay thermal oxygen degradation reaction, long service life, maintain appearance and physical and mechanical properties Effect

Active Publication Date: 2014-03-12
FSPG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type is galvanized iron pipe, which is a kind of metal pipe coated with a layer of zinc on the surface of iron by electroplating chemical method to achieve the purpose of rust prevention. The pipe has very high strength and is not easy to be damaged; Rust in the presence of water and oxygen is not conducive to water cleanliness
The second type is stainless steel pipe, which is a pipe made of stainless steel. It has very high strength and will not rust, but it is very expensive and costly.
However, PP-R pipes cannot be bent, and each piece is several meters long, so many pipe fittings are needed to connect them during installation; moreover, when this kind of pipe is installed outdoors, it is easy to age and has a short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A water supply pipe, including inner and outer layers, the inner pipe 1 is a cross-linked polyethylene (PE-Xc) pipe produced by a radiation cross-linking process, the outer pipe 2 is a polyolefin pipe, and the two-layer pipe adopts heating coating The polyolefin tube of the outer layer is bonded together; antioxidant, light stabilizer and color masterbatch with certain light shielding effect and anti-aging effect are added in the polyolefin tube of the outer layer.

[0015] The cross-linked polyethylene pipe of the inner pipe is made of high-density polyethylene HDPE5502 99.4%wt and antioxidant AT1010 0.6%wt after mixing evenly, extruded into a tubular shape at a temperature of 210°C, and exposed to an electron beam irradiation dose of 115KGy case, resulting in cross-linked polyethylene pipes.

[0016] The outer pipe is made of LDPE951-000 97.19%wt, aluminum powder 2.25%wt, antioxidant 168 0.14%wt, antioxidant AT1010 0.07%wt, light stabilizer 944 0.35%wt It is a polyol...

Embodiment 2

[0022] It is different from Example 1 in that: the cross-linked polyethylene pipe of the inner pipe is made of high-density polyethylene HDPE4261 99.43%wt and antioxidant AT1010 0.57%wt, after being uniformly mixed, extruded at a temperature of 220°C Tubular, cross-linked polyethylene tube obtained under the electron ray irradiation dose of 120KGy.

[0023] The outer layer pipe is made of HDPE T9 97.73%wt, carbon black 1.85%wt, antioxidant 168 0.11%wt, antioxidant AT1010 0.05%wt, light stabilizer 5050H 0.26%wt and mixed uniformly at 230°C The polyolefin pipe is formed by melting and extruding and covering the inner pipe material and cooling.

[0024] The preparation method of the water supply pipe comprises the following steps:

[0025] A. After uniformly mixing high-density polyethylene HDPE4261 99.43%wt and antioxidant AT1010 0.57%wt, extrude it into a tube at a temperature of 220°C, and obtain an inner layer cross-linked polyethylene tube under an electron beam irradiation...

Embodiment 3

[0029] It differs from Example 1 in that: the cross-linked polyethylene pipe of the inner layer pipe is made of high-density polyethylene HDPE5502 99.43%wt and antioxidant AT1010 0.57%wt, after being uniformly mixed, extruded at a temperature of 190°C Tubular, cross-linked polyethylene tube obtained under the electron ray irradiation dose of 110KGy.

[0030] The outer pipe is made of HDPE 6094 96.85%wt, aluminum powder 2.24%wt, carbon black 0.35%wt, antioxidant 168 0.14%wt, antioxidant AT1010 0.07%wt, light stabilizer 944 0.35%wt uniform After mixing, melt-extrude at 230°C to form a polyolefin pipe that is coated on the outside of the inner pipe and cooled.

[0031] The preparation method of the water supply pipe comprises the following steps:

[0032] A. After mixing 99.43%wt of high-density polyethylene (HDPE5502) and 0.57%wt of antioxidant (AT1010), extrude it into a tube at a temperature of 190°C. joint polyethylene pipe;

[0033] B. Mix HDPE 6094 96.85%wt, aluminum pow...

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PUM

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Abstract

The invention discloses a water supply pipe material and a preparation method thereof. The water supply pipe material comprises an inner layer and an outer layer, wherein a cross-linked polyethylene (PE-Xc) pipe produced by adopting a radiation cross linking process is adopted as the inner layer, a polyolefin pipe is adopted as the outer layer, the two pipes are adhered together by adopting a heating and coating method; and an antioxygen and a light stabilizer and a color master batch with a certain light shielding function and an ageing-resisting function are added in the polyolefin of the outer layer. The water supply pipe material has higher strength and excellent ageing-resisting performance.

Description

technical field [0001] The invention relates to a pipe material for water supply, especially a pipe material for residential water supply. Background technique [0002] At present, there are mainly four types of pipes used for domestic water supply. The first type is galvanized iron pipe, which is a kind of metal pipe coated with a layer of zinc on the surface of iron by electroplating chemical method to achieve the purpose of rust prevention. The pipe has very high strength and is not easy to be damaged; The presence of water and oxygen will cause rust, which is not conducive to clean water. The second type is stainless steel pipe, which is a pipe made of stainless steel. It has very high strength and will not rust, but it is very expensive and expensive. The third is the aluminum-plastic composite pipe, which is a multi-layer structure pipe. The inner and outer layers are plastic layers, and the middle is a metal aluminum alloy layer. There is a hot-melt adhesive between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/12B29C47/00B32B27/08B32B27/18B32B27/32
Inventor 林文天陈广建谭健李永鸿
Owner FSPG HI TECH
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