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Antibacterial pipe and preparation method thereof

A technology of pipes and antioxidants, applied in the field of antibacterial pipes and their preparation, can solve the problems of harming health, easy to cause chronic poisoning, and poor mechanical properties of antibacterial pipes, and achieve less environmental pollution, protect skin health, antibacterial and antibacterial Excellent effect

Pending Publication Date: 2020-11-13
RIFENG ENTERPRISE GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since domestic water is generally tap water, the water often contains bacteria such as Escherichia coli and Staphylococcus aureus, which will endanger people's health; existing pipes are usually removed by adding silver ion antibacterial agents to the inner layer of the pipe. To achieve antibacterial and antibacterial effects, although the antibacterial and antibacterial effects of silver ion antibacterial agents are very good, silver ions are heavy metals after all. Drinking water containing silver ions for a long time may cause silver ions to deposit in the human body and easily cause chronic poisoning , but endanger people's health
Moreover, the existing antibacterial pipes have poor mechanical properties

Method used

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  • Antibacterial pipe and preparation method thereof
  • Antibacterial pipe and preparation method thereof
  • Antibacterial pipe and preparation method thereof

Examples

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preparation example Construction

[0035] A preparation method for any one of the antibacterial tubing described above, said method comprising the following steps:

[0036] (1) 60-70 parts of polypropylene resin, 20-30 parts of linear low-density polyethylene resin, 0.5-1.5 parts of modified tetraacicular zinc oxide whiskers, 5-10 parts of chitosan, 0.2-30 parts of antioxidant Mix 0.5 parts with 0.2-0.5 parts of dispersant, extrude and granulate at 170-180°C to obtain chitosan-zinc ion composite antibacterial masterbatch; combine chitosan-zinc ion composite antibacterial masterbatch, color masterbatch and polypropylene resin Mix according to the weight ratio as the inner layer material;

[0037] (2) mixing polypropylene resin, basalt fiber, compatibilizer, lubricant and antioxidant according to the weight ratio as the middle layer material, and mixing polypropylene resin and color masterbatch according to the weight ratio as the outer layer material;

[0038] (3) Add the inner layer material, the middle layer ...

Embodiment 1

[0040] As an antibacterial pipe according to an embodiment of the present invention, the antibacterial pipe includes an inner layer, a middle layer and an outer layer. The thickness of the outer layer of the pipe is 1.0mm, the thickness of the middle layer is 1.0mm, and the thickness of the inner layer is 0.8mm. The specification of the antibacterial pipe is S3.2 -20×2.8;

[0041]The inner layer is extruded from 100 parts by weight of polypropylene resin, 2 parts by weight of white masterbatch and 2 parts by weight of chitosan-zinc ion composite antibacterial masterbatch, and the chitosan-zinc ion composite antibacterial masterbatch is made of polypropylene 70 parts by weight of resin, 30 parts by weight of linear low-density polyethylene resin, 1 part by weight of surface-modified tetraacicular zinc oxide whiskers, 8 parts by weight of chitosan, 0.4 parts by weight of antioxidant and 0.4 parts by weight of calcium stearate Part extrusion granulation is made, and described ant...

Embodiment 2

[0049] As a kind of antibacterial pipe material of the embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is that the inner layer is made of 100 parts by weight of polypropylene resin, 20 parts by weight of basalt fiber, and 6 parts by weight of maleic anhydride grafted polypropylene. 0.4 parts by weight of calcium stearate and 0.4 parts by weight of antioxidant are extruded, and the antioxidant is a mixture of antioxidant 1010 and antioxidant 168 with a weight ratio of 1:1, wherein the Basalt fibers accounted for 15.77% by weight of the middle layer.

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Abstract

The invention provides an antibacterial pipe and a preparation method thereof. The antibacterial pipe comprises an inner layer, a middle layer and an outer layer; the inner layer comprises polypropylene resin, linear low-density polyethylene resin, modified tetrapod-like zinc oxide whiskers, chitosan, an antioxidant and a dispersing agent; the modified tetrapod-like zinc oxide whiskers are gamma-aminopropyltriethoxysilane surface modified tetrapod-like zinc oxide whiskers, the weight of the modified tetrapod-like zinc oxide whiskers account for 0.0080%-0.070% of the weight of the inner layer,and the weight of the chitosan accounts for 0.085%-0.42% of the weight of the inner layer; the middle layer comprises polypropylene resin, basalt fibers, a compatilizer, a lubricant and an antioxidant, and the basalt fibers account for 15.0%-23.0% of the weight of the middle layer; and the outer layer comprises polypropylene resin and color master batch. The antibacterial pipe is good in mechanical property and excellent in antibacterial and bacteriostatic effect, the used materials are environmentally friendly and free of heavy metal residues, the antibacterial pipe can be directly degraded in the environment after being discarded, no harm is caused, and the antibacterial pipe is a genuine green and environment-friendly material.

Description

technical field [0001] The invention relates to the field of plastic pipes, in particular to an antibacterial pipe and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people's requirements for water quality sanitation and water safety are getting higher and higher, and the national level is also advocating a green, environmentally friendly and healthy lifestyle. [0003] Since domestic water is generally tap water, the water often contains bacteria such as Escherichia coli and Staphylococcus aureus, which will endanger people's health; existing pipes are usually removed by adding silver ion antibacterial agents to the inner layer of the pipe. To achieve antibacterial and antibacterial effects, although the antibacterial and antibacterial effects of silver ion antibacterial agents are very good, silver ions are heavy metals after all. Drinking water containing silver ions for a long time may cause silver ions to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L5/08C08L23/08C08K13/06C08K9/06C08K7/08C08L51/06C08K13/04C08K7/10F16L9/12F16L9/128F16L57/02B32B1/08B32B27/32B32B27/18B32B27/20B32B27/08
CPCC08L23/12F16L9/121F16L9/128F16L57/02B32B1/08B32B27/32B32B27/18B32B27/20B32B27/08C08L2205/02C08L2205/03C08L2201/06B32B2597/00B32B2307/7145
Inventor 于麒汪磊邱桥平杨浩佳韩延旺
Owner RIFENG ENTERPRISE GRP CO LTD
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