Antibacterial polyethylene pipe and preparation method thereof

A polyethylene pipe and high-density polyethylene technology, which is applied in the field of antibacterial polyethylene pipes and their preparation, can solve problems such as negative effects on the liver, and achieve the effects of improving antibacterial properties, enhancing mechanical properties, good application prospects and social benefits

Active Publication Date: 2017-12-22
HONGYUE PLASTIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For improving the antibacterial and bacteriostatic effects of polyethylene pipes, the prior art is mainly realized by adding inorganic antibacterial agents such as silver, copper, zinc, titanium, etc. Although simple inorganic antibacterial agents have good thermal stability, they are not effective in plastic extrusion and It has the advantages of not decomposing and deteriorating during processing, but long-term drinking of drinking water containing inorganic antibacterial agents such as silver, copper, zinc, and titanium will have a negative impact on the human liver, so this also limits the use of inorganic antibacterial agents. Application, the use of organic antibacterial agents instead of inorganic antibacterial agents has become a current research hotspot and development trend

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An antibacterial polyethylene pipe is prepared from the following raw materials in parts by weight: 97 parts of high-density polyethylene resin, 1 part of crosslinking agent, 0.2 part of antioxidant, 0.1 part of compatibilizer, 2-hydroxy-4 - 0.5 part of methoxybenzophenone, 0.1 part of antibacterial agent, 0.05 part of antibacterial synergist, and 0.2 part of modifier.

[0027] As mentioned, the antibacterial agent is prepared from methylisothiazolinone and titanium dioxide in a weight ratio of 0.4:1.

[0028] As mentioned, the antibacterial synergist is prepared from diethanol monoisopropanolamine maleate compound and ethylenediaminetetraacetic acid in a weight ratio of 1:0.5.

[0029] Described, diethanol monoisopropanolamine maleate compound is prepared by the following method: add diethanol monoisopropanolamine and maleic anhydride in the reactor, add catalyst, under stirring condition Reduce the pressure to 0.4MPa, heat, control the temperature at 100°C, maintain ...

Embodiment 2

[0039] An antibacterial polyethylene pipe is prepared from the following raw materials in parts by weight: 98 parts of high-density polyethylene resin, 0.5 part of crosslinking agent, 0.8 part of antioxidant, 0.3 part of compatibilizer, 2-hydroxyl-4 - 0.3 part of methoxybenzophenone, 0.2 part of antibacterial agent, 0.07 part of antibacterial synergist, and 0.15 part of modifier.

[0040] As mentioned, the antibacterial agent is prepared from methylisothiazolinone and titanium dioxide in a weight ratio of 0.3:1.

[0041] Said antibacterial synergist is prepared from diethanol monoisopropanolamine maleate compound and ethylenediaminetetraacetic acid in a weight ratio of 1:0.6.

[0042] Described, diethanol monoisopropanolamine maleate compound is prepared by the following method: add diethanol monoisopropanolamine and maleic anhydride in the reactor, add catalyst, under stirring condition Reduce the pressure to 0.4MPa, heat, control the temperature at 100°C, maintain the const...

Embodiment 3

[0052] An antibacterial polyethylene pipe is prepared from the following raw materials in parts by weight: 99 parts of high-density polyethylene resin, 0.1 part of crosslinking agent, 1.2 parts of antioxidant, 0.5 part of compatibilizer, 2-hydroxy-4 - 0.1 part of methoxybenzophenone, 0.3 part of antibacterial agent, 0.09 part of antibacterial synergist, and 0.1 part of modifier.

[0053] As mentioned, the antibacterial agent is prepared from methylisothiazolinone and titanium dioxide in a weight ratio of 0.2:1.

[0054] As mentioned, the antibacterial synergist is prepared from diethanol monoisopropanolamine maleate compound and ethylenediaminetetraacetic acid in a weight ratio of 1:0.7.

[0055] Described, diethanol monoisopropanolamine maleate compound is prepared by the following method: add diethanol monoisopropanolamine and maleic anhydride in the reactor, add catalyst, under stirring condition Reduce the pressure to 0.4MPa, heat, control the temperature at 100°C, mainta...

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Abstract

The invention discloses an antibacterial polyethylene pipe and a preparation method thereof. The antibacterial polyethylene pipe is prepared from, by weight, 97-99 parts of polyethylene resin, 0.1-1.0 part of crosslinking agent, 0.2-1.2 parts of antioxidant, 0.1-0.5 part of compatilizer, 0.1-0.5 part of 2-hydroxy-4-methoxybenzophenone, 0.1-0.3 part of antibacterial agent, 0.05-0.09 part of antibacterial synergist and 0.1-0.2 part of modifier. Through double action of the antibacterial agent and the antibacterial synergist, antibacterial performance of the polyethylene pipe is improved remarkably, bacteria and microorganism cells are killed, secondary pollution in the process of water delivery is reduced, and water is maintained clean and sanitary. The modifier can remarkably enhance mechanical performance of the polyethylene pipe. The preparation method is simple and easy to implement and has great application prospect and social benefit.

Description

technical field [0001] The invention relates to a polyethylene pipe, in particular to an antibacterial polyethylene pipe and a preparation method thereof. Background technique [0002] Polyethylene pipe is a high crystallinity, non-polar thermoplastic resin pipe, because polyethylene pipe is non-toxic, tasteless, odorless, good cold resistance, heat resistance and chemical stability, high rigidity and toughness, And many advantages such as good mechanical properties and convenient installation, are widely used in building water supply and drainage, buried drainage pipes, gas pipelines and telecommunications engineering and other fields. [0003] However, when polyethylene pipes are stored or used in the open air, under the action of ultraviolet light, they are prone to aging, discoloration, brittleness and even pulverization, thus losing their mechanical properties and affecting the use of polyethylene pipes. Therefore, polyethylene pipes need to be processed Improvement, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08K13/06C08K9/04C08K3/22C08K5/47C08K5/17C08K3/36C08K5/14
CPCC08K2003/2241C08K2201/003C08K2201/006C08K2201/011C08K2201/014C08L23/06C08L2203/18C08L2207/062C08L51/06C08K13/06C08K9/04C08K3/22C08K5/47C08K5/17C08K3/36C08K5/14
Inventor 马君任宇红李云岩王倩钟毅蓝斌
Owner HONGYUE PLASTIC GROUP
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