Highly antibacterial sealing paste for water pipe

A technology for sealing paste and water pipes, applied in the direction of adhesive types, adhesive additives, non-polymer adhesive additives, etc., can solve serious problems such as service life of water pipes, bacterial growth in connection parts, and affect the use effect, etc., to achieve inhibition Effects of microbial growth, integrity protection, and service life extension

Inactive Publication Date: 2019-02-15
天长市永泰密封材料有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] Sealant is a kind of sealant. It is mainly made of liquid polysulfide rubber as the base material. It is a polysulfide sealant that can be self-vulcanized and cross-linked at room temperature. It has good adhesion to metals and concrete and other materials. It maintains good airtightness and water resistance under , vibration and temperature changes, and is oil-resistant, solvent-resistant, and durable. H...
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Abstract

The invention relates to the technical field of sealing paste processing, and provides a highly antibacterial sealing paste for a water pipe. The highly antibacterial sealing paste for the water pipeis prepared from raw materials with the following parts by weight: 80-100 parts of chloroprene rubber adhesive cement, 10-15 parts of butadiene styrene rubber, 4-6 parts of polytetrafluoroethylene, 2-4 parts of sepiolite fibers, 1.4-1.6 parts of methylparaben, 4-6 parts of glutaraldehyde, 2-3 parts of nano-silica, 1-3 parts of diatomite, 0.6-1.2 parts of basic cupric carbonate, 0.6-0.8 part of dicumyl peroxide, 0.4-0.6 part of a dispersant, 0.5-0.7 part of an antioxidant, and 0.2-0.4 part of a thickener. The highly antibacterial sealing paste for the water pipe provided by the invention has the advantages that defects in the prior art are overcome; and under the premise that the anti-oxidization and anti-corrosion capabilities of the sealant are effectively improved, the bacteria growth can be inhibited, so that the pipe is less likely to be damaged by microorganisms, the product durability is improved, and the service life of the pipe is prolonged.

Application Domain

Non-macromolecular adhesive additivesMacromolecular adhesive additives +2

Technology Topic

BASIC CUPRIC CARBONATEWater pipe +14

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  • Highly antibacterial sealing paste for water pipe

Examples

  • Experimental program(4)

Example Embodiment

[0022] Example 1:
[0023] A powerful antibacterial water pipe sealing paste, which is made of the following parts by weight of raw materials: 80 parts of neoprene glue, 10 parts of styrene butadiene rubber, 4 parts of polytetrafluoroethylene, sea 2 parts of foam stone fiber, 1.4 parts of methyl paraben, 4 parts of glutaraldehyde, 2 parts of nano silicon dioxide, 1 part of diatomaceous earth, 0.6 part of basic copper carbonate, 0.6 part of dicumyl peroxide, dispersant 0.4 part, 0.5 part of antioxidant, 0.2 part of thickener.
[0024] The dispersant is at least one of triethylhexyl phosphoric acid, sodium lauryl sulfate, methylpentanol and fatty acid polyethylene glycol ester; the antioxidant is diphenylamine, pentaerythritol ester and thiodipropionic acid The mass ratio of diester is 1:3:1; the thickener is a mixture of sodium carboxymethyl cellulose and sodium bentonite in mass ratio of 1:4.
[0025] The preparation method of the strong antibacterial water pipe sealing paste includes the following steps:
[0026] (1) Mix the neoprene glue, styrene-butadiene rubber and polytetrafluoroethylene, heat and stir evenly, then slowly cool to room temperature, let it stand for 2-3 hours, and obtain the mixture for use;
[0027] (2) Mix sepiolite fiber, methyl paraben, glutaraldehyde, nano silicon dioxide, diatomaceous earth, basic copper carbonate, dispersant and antioxidant, add them to the above mixture, and place in a high-pressure reactor , Carry out high-temperature and high-pressure treatment, and obtain prefabricated materials for use;
[0028] (3) Mix the above-mentioned preform with dicumyl peroxide and thickener, vacuumize in an extruder, mix for a period of time, cool and seal to obtain the potent antibacterial water pipe sealing paste of the present invention.
[0029] Among them, the heating and stirring temperature of step (1) is 120-150°C, and the stirring time is 30-40min; the temperature of high temperature and high pressure treatment in step (2) is 90-100°C, the pressure is 12-16MPa, and the time is 20-30min In step (3), the temperature in the extruder is 80-90°C, the mixing time is 40-50min, and the vacuum pressure is 0.04-0.08MPa.

Example Embodiment

[0030] Example 2:
[0031] A strong antibacterial water pipe sealing paste, which is made of the following parts by weight of raw materials: 100 parts of neoprene glue, 15 parts of styrene butadiene rubber, 6 parts of polytetrafluoroethylene, sea water 4 parts of foam stone fiber, 1.6 parts of methyl paraben, 6 parts of glutaraldehyde, 3 parts of nano silica, 3 parts of diatomaceous earth, 1.2 parts of basic copper carbonate, 0.8 parts of dicumyl peroxide, dispersant 0.6 parts, 0.7 parts of antioxidant, 0.4 parts of thickener.
[0032] The dispersant is at least one of triethylhexyl phosphoric acid, sodium lauryl sulfate, methylpentanol and fatty acid polyethylene glycol ester; the antioxidant is diphenylamine, pentaerythritol ester and thiodipropionic acid The mass ratio of diester is 1:3:1; the thickener is a mixture of sodium carboxymethyl cellulose and sodium bentonite in mass ratio of 1:4.
[0033] The preparation method of the strong antibacterial water pipe sealing paste includes the following steps:
[0034] (1) Mix the neoprene glue, styrene-butadiene rubber and polytetrafluoroethylene, heat and stir evenly, then slowly cool to room temperature, let it stand for 2-3 hours, and obtain the mixture for use;
[0035] (2) Mix sepiolite fiber, methyl paraben, glutaraldehyde, nano silicon dioxide, diatomaceous earth, basic copper carbonate, dispersant and antioxidant, add them to the above mixture, and place in a high-pressure reactor , Carry out high-temperature and high-pressure treatment, and obtain prefabricated materials for use;
[0036] (3) Mix the above-mentioned preform with dicumyl peroxide and thickener, vacuumize in an extruder, mix for a period of time, cool and seal to obtain the potent antibacterial water pipe sealing paste of the present invention.
[0037] Among them, the heating and stirring temperature of step (1) is 120-150°C, and the stirring time is 30-40min; the temperature of high temperature and high pressure treatment in step (2) is 90-100°C, the pressure is 12-16MPa, and the time is 20-30min In step (3), the temperature in the extruder is 80-90°C, the mixing time is 40-50min, and the vacuum pressure is 0.04-0.08MPa.

Example Embodiment

[0038] Example 3:
[0039] A powerful antibacterial water pipe sealing paste, which is made of the following parts by weight of raw materials: 90 parts of neoprene glue, 13 parts of styrene butadiene rubber, 5 parts of polytetrafluoroethylene, sea water 3 parts of foam stone fiber, 1.5 parts of methyl paraben, 5 parts of glutaraldehyde, 2.5 parts of nano-silica, 2 parts of diatomaceous earth, 1 part of basic copper carbonate, 0.7 parts of dicumyl peroxide, dispersant 0.5 part, 0.6 part of antioxidant, 0.3 part of thickener.
[0040] The dispersant is at least one of triethylhexyl phosphoric acid, sodium lauryl sulfate, methylpentanol and fatty acid polyethylene glycol ester; the antioxidant is diphenylamine, pentaerythritol ester and thiodipropionic acid The mass ratio of diester is 1:3:1; the thickener is a mixture of sodium carboxymethyl cellulose and sodium bentonite in mass ratio of 1:4.
[0041] The preparation method of the strong antibacterial water pipe sealing paste includes the following steps:
[0042] (1) Mix the neoprene glue, styrene-butadiene rubber and polytetrafluoroethylene, heat and stir evenly, then slowly cool to room temperature, let it stand for 2-3 hours, and obtain the mixture for use;
[0043] (2) Mix sepiolite fiber, methyl paraben, glutaraldehyde, nano silicon dioxide, diatomaceous earth, basic copper carbonate, dispersant and antioxidant, add them to the above mixture, and place in a high-pressure reactor , Carry out high-temperature and high-pressure treatment, and obtain prefabricated materials for use;
[0044] (3) Mix the above-mentioned preform with dicumyl peroxide and thickener, vacuumize in an extruder, mix for a period of time, cool and seal to obtain the potent antibacterial water pipe sealing paste of the present invention.
[0045] Among them, the heating and stirring temperature of step (1) is 120-150°C, and the stirring time is 30-40min; the temperature of high temperature and high pressure treatment in step (2) is 90-100°C, the pressure is 12-16MPa, and the time is 20-30min In step (3), the temperature in the extruder is 80-90°C, the mixing time is 40-50min, and the vacuum pressure is 0.04-0.08MPa.

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