Antibacterial anti-corrosion communication tube and preparation method thereof

A communication tube and anti-corrosion technology, applied in the field of communication tubes, can solve the problems of failure of communication tube materials, inability to protect cables, etc., and achieve the effects of increasing hydrophobic performance, good antibacterial function, and convenient recycling.

Inactive Publication Date: 2020-08-25
杭州联通管业有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0004] Microbial corrosion is a kind of electrochemical corrosion, the difference is that the medium is changed due to the reproduction and metabolism of corrosion microorganisms and some physical and chemical properties of the interface in contact with it, the secretion of intermediate pr...
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Abstract

The invention relates to the technical field of communication tubes, especially to an antibacterial anti-corrosion communication tube and a preparation method thereof. The antibacterial anti-corrosioncommunication tube in the invention comprises a communication tube body, wherein an antibacterial layer is arranged on the outer surface of the communication tube body; the antibacterial layer contains antibacterial particles; and the antibacterial particles are prepared by taking iron-doped zinc oxide as a carrier, loading copper nanoparticles on the carrier and then loading silver/carbon nanodot composite particles, the iron-doped zinc oxide is of a porous structure, and a molar ratio of silver to copper in the antibacterial particles is 0.05-0.08. According to the antibacterial anti-corrosion communication tube, the antibacterial layer is arranged on the outer surface of the communication tube, so microorganisms on the surface of the communication tube can be inhibited and even killed,and thus, the internal communication tube body is protected, and the probability of microbial corrosion of the communication tube is reduced to a certain extent.

Application Domain

BiocideAntifouling/underwater paints +7

Technology Topic

Anti bacterialMicrobial corrosion +6

Examples

  • Experimental program(4)
  • Comparison scheme(2)
  • Effect test(1)

Example Embodiment

[0033] Example one
[0034] Preparation of antibacterial particles
[0035] A1: Dissolve zinc acetate and hexamethylenetetraammonium ammonium in deionized water at a mass ratio of 10:1, mix them in a constant temperature water bath at 80°C at 800r/min for 2h, and obtain a concentration of 0.6mol/L. Take the ferric chloride solution, stir and dissolve it in deionized water, stir until it is completely dissolved and then add dropwise to the zinc acetate solution at a rate of 3ml/min, continue to stir and mix for 30 minutes, and then hydrothermally react at 180°C 6 8h, after the reaction is completed, cool to room temperature with the furnace, filter, wash the filter cake with deionized water and absolute ethanol, put it in the muffle furnace, first heat up to 70-80℃, keep it for 1h, then heat it to 350℃, keep it warm After 30 minutes, the temperature is raised to 600° C., and the temperature is maintained for 10 minutes to obtain iron-doped zinc oxide as a carrier.
[0036] A2: Dissolve polyvinylpyrrolidone in deionized water to obtain a polyvinylpyrrolidone solution with a concentration of 1wt%, add 0.03mol/L silver nitrate solution, magnetically stir for 10min, add carbon nanodot solution, continue to stir and mix for 15min, The reaction was kept at a constant temperature at 180°C for 6 hours. After the reaction was completed, it was cooled to room temperature in the furnace and filtered. The filter cake was washed with deionized water and absolute ethanol, and vacuum dried at 60°C to obtain silver/carbon nanodot composite particles.
[0037] A3: Add the prepared iron-doped zinc oxide into deionized water at a solid-to-liquid ratio of 25g/L, ultrasonically disperse to obtain a suspension, and then add 0.1 times the iron-doped zinc oxide quality copper chloride, and wait for chlorination Copper molar mass of potassium sodium tartrate, magnetically stirred for 2 hours, filtered after the reaction is complete, the filter cake is washed with absolute ethanol and then vacuum dried at 60°C. After drying, it is placed in a tubular resistance furnace under a hydrogen atmosphere. Incubate the reaction at 270°C for 1 hour, cool to room temperature and take out ultrasonic dispersion in deionized water, add 1.5 times the quality of iron-doped zinc oxide silver/carbon nano-dot composite particles, add dimethylacetamide, sodium oleate, Silane coupling agent, in which the mass ratio of silver/carbon nanodot composite particles, dimethylacetamide, sodium oleate, and silane coupling agent is 1:0.2:0.1:0.1, and ultrasonic treatment is continued for 6 hours to obtain antibacterial particles .
[0038] Preparation of communication tube
[0039] Weigh the following raw materials: 20 parts of epoxy resin, 3 parts of curing agent, 5 parts of hydroxycellulose, 20 parts of antibacterial particles, 40 parts of solvent, and 100 parts of co-solvent.
[0040] S1: The communication tube body is prepared through an extrusion molding process.
[0041] S2: The body of the communication tube is ultrasonically cleaned, degreasing, and then dried for use.
[0042] S3: Dissolve 2/3 part by weight of epoxy resin in 1/2 part by weight of solvent, add 1/2 part by weight of curing agent and 1/4 part by weight of co-solvent, and stir until completely dissolved to obtain solution A , Stir and disperse the antibacterial particles in the remaining solvent. After magnetic stirring for 1 hour, add the silane coupling agent and the remaining epoxy resin. After magnetic stirring for 20 minutes, add the remaining curing agent, hydroxycellulose, and the remaining cosolvent to obtain Mixed solution B.
[0043] S4: The cleaned communication tube body is subjected to corona surface treatment under the conditions of processing voltage of 8KV, frequency of 18KHz, and processing temperature of 45℃, using a mixture of oxygen and nitrogen in a volume ratio of 2:8 as the working gas 3min, spray the prepared solution A and mixed solution B evenly on the outer surface of the communication tube body in three intervals, spray solution A for the first time, spray mixed solution B for the last time, and dry at 80℃ for 3h after each spraying. , After spraying, get the antibacterial and anticorrosive communication tube.

Example Embodiment

[0044] Example two
[0045] The preparation of antibacterial particles is the same as in Example 1.
[0046] Preparation of communication tube
[0047] Weigh the following raw materials: 25 parts of epoxy resin, 4 parts of curing agent, 2 parts of hydroxycellulose, 18 parts of antibacterial particles, 30 parts of solvent, and 90 parts of cosolvent.
[0048] S1: The communication tube body is prepared through an extrusion molding process.
[0049] S2: The body of the communication tube is ultrasonically cleaned, degreasing, and then dried for use.
[0050] S3: Dissolve 2/3 part by weight of epoxy resin in 1/2 part by weight of solvent, add 1/2 part by weight of curing agent and 1/4 part by weight of co-solvent, and stir until completely dissolved to obtain solution A , Stir and disperse the antibacterial particles in the remaining solvent. After magnetic stirring for 1 hour, add the silane coupling agent and the remaining epoxy resin. After magnetic stirring for 20 minutes, add the remaining curing agent, hydroxycellulose, and the remaining cosolvent to obtain Mixed solution B.
[0051] S4: The cleaned communication tube body is subjected to corona surface treatment at a processing voltage of 6KV, a frequency of 20KHz, and a processing temperature of 40℃, using a mixture of oxygen and nitrogen in a volume ratio of 2:8 as the working gas 2min, spray the prepared solution A and mixed solution B evenly on the outer surface of the communication tube body in three intervals, spray solution A for the first time, spray mixed solution B for the last time, and dry it at 80℃ for 3h each time. , After spraying, get the antibacterial and anticorrosive communication tube.

Example Embodiment

[0052] Example three
[0053] The preparation of antibacterial particles is the same as in Example 1.
[0054] Preparation of communication tube
[0055] Weigh the following raw materials: 30 parts of epoxy resin, 2 parts of curing agent, 3 parts of hydroxycellulose, 15 parts of antibacterial particles, 50 parts of solvent, and 80 parts of cosolvent.
[0056] S1: The communication tube body is prepared through an extrusion molding process.
[0057] S2: The body of the communication tube is ultrasonically cleaned, degreasing, and then dried for use.
[0058] S3: Dissolve 2/3 part by weight of epoxy resin in 1/2 part by weight of solvent, add 1/2 part by weight of curing agent and 1/4 part by weight of co-solvent, and stir until completely dissolved to obtain solution A , Stir and disperse the antibacterial particles in the remaining solvent. After magnetic stirring for 1 hour, add the silane coupling agent and the remaining epoxy resin. After magnetic stirring for 20 minutes, add the remaining curing agent, hydroxycellulose, and the remaining cosolvent to obtain Mixed solution B.
[0059] S4: The cleaned communication tube body is subjected to corona surface treatment under the conditions of a processing voltage of 10KV, a frequency of 15KHz, and a processing temperature of 50℃, using a mixture of oxygen and nitrogen in a volume ratio of 2:8 as the working gas 2min, spray the prepared solution A and mixed solution B evenly on the outer surface of the communication tube body in three intervals, spray solution A for the first time, spray mixed solution B for the last time, and dry it at 80℃ for 3h each time. , After spraying, get the antibacterial and anticorrosive communication tube.

PUM

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Description & Claims & Application Information

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