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CN-121975428-A - Long-acting antibacterial anti-algae drinking water pool waterproof coating and preparation method thereof

CN121975428ACN 121975428 ACN121975428 ACN 121975428ACN-121975428-A

Abstract

The invention relates to a long-acting antibacterial and anti-algae drinking water pool waterproof coating which comprises a long-acting antibacterial and anti-algae drinking water pool waterproof coating and consists of liquid materials and powder materials, wherein the liquid materials comprise organosilicon emulsion, modified organosilicon, color paste, an anti-algae agent, an antibacterial agent, an auxiliary agent and water, and the powder materials comprise white cement, quartz sand, PP fibers, cellulose and a water reducing agent. The modified organosilicon obtained by the reaction of vinyl hydrogen-containing silicone oil and allyl glycidyl ether modified chitosan reaction product and N, N-methylene bisacrylamide, styrene and butyl acrylate are compounded with organosilicon emulsion to realize the antibacterial and anti-algae function and system stability, and the powder is cooperated with quartz sand through white cement, so that a ventilation channel is constructed by the quartz sand, the waterproof performance is guaranteed by cement, a three-dimensional toughening network is formed by PP fibers and cellulose, and the construction property and the coating compactness are optimized by matching with a water reducing agent.

Inventors

  • HUANG ZHENHUI
  • LU WENZHOU
  • Liang Qiguan
  • CHEN CHAOHAN
  • DU GUOQI

Assignees

  • 广东吉美帮新材料有限公司

Dates

Publication Date
20260505
Application Date
20260204

Claims (10)

  1. 1. The long-acting antibacterial and anti-algae drinking water pool waterproof coating is characterized by comprising liquid materials and powder materials; the liquid material comprises the following components in parts by weight: 60-75 parts of organic silicon emulsion 5-10 Parts of modified organosilicon Color paste 0.2-0.8 part 0.5-3 Parts of anti-algae agent 0.5-1 Part of antibacterial agent 0.5-3 Parts of auxiliary agent 30-50 Parts of water; The powder comprises the following components in parts by weight: 450-550 parts of white cement 450-500 Parts of quartz sand 0.5-2 Parts of PP fiber Cellulose 0.4-0.8 parts 2-7 Parts of water reducer; wherein the mass ratio of the liquid material to the powder material is 1:2-3; The modified organosilicon is obtained by copolymerization reaction of allyl glycidyl ether modified chitosan and vinyl hydrogen-containing silicone oil, and N, N-methylene bisacrylamide, styrene and butyl acrylate.
  2. 2. The long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 1, wherein, The material of the anti-algae agent is one or more of 4, 5-dichloro-2-n-octyl-4-isothiazolin-3-ketone, 2-n-octyl-4-isothiazolin-3-ketone and carbendazim.
  3. 3. The long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 1, wherein, The antibacterial agent is microcapsule antibacterial agent, and the anti-algae agent is microcapsule anti-algae agent.
  4. 4. The long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 1, wherein, The organic silicon emulsion is selected from one or more of organic silicon modified styrene-butadiene emulsion and organic silicon modified pure acrylic emulsion.
  5. 5. The long-acting antimicrobial and anti-algae drinking water pond waterproof coating according to claim 1, wherein the viscosity of the cellulose is 9000-16000mPas.
  6. 6. The long-acting antimicrobial and anti-algae drinking water pond waterproof coating according to claim 1, wherein the white cement is selected from one or more of slag portland cement, pozzolan portland cement, fly ash portland cement, composite portland cement.
  7. 7. The long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 1, wherein the auxiliary agent is one or more selected from defoamer, dispersant and bactericide.
  8. 8. The method for preparing the long-acting antibacterial and anti-algae drinking water pond waterproof paint according to any one of claims 1 to 7, which is characterized by comprising the following steps: s1, adding chitosan into a solvent, adjusting pH, adding allyl glycidyl ether, uniformly mixing, and heating for reaction to obtain allyl glycidyl ether modified chitosan; S2-1, mixing allyl glycidyl ether modified chitosan and vinyl hydrogen-containing silicone oil, adding a catalyst, and heating for reaction to obtain modified chitosan; s2-2, under the protection of inert gas, mixing modified chitosan, N-methylene bisacrylamide, styrene and butyl acrylate, adding an emulsifier and an initiator, and heating for reaction to obtain the modified organosilicon; S3-1, mixing the modified organic silicon with components of a liquid material part to obtain a liquid material; s3-2, mixing the powder parts to obtain the powder, and obtaining the long-acting antibacterial and anti-algae drinking water pool waterproof coating.
  9. 9. The method for preparing the long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 8, wherein in the step S1, the mass ratio of the chitosan to the allyl glycidyl ether is 1-3:0.2-0.5.
  10. 10. The preparation method of the long-acting antibacterial and anti-algae drinking water pond waterproof coating according to claim 8, wherein in the step S2-1, the mass ratio of the allyl glycidyl ether modified chitosan to the vinyl hydrogen-containing silicone oil is 10-12:2-3; in the step S2-2, the mass ratio of the modified chitosan to the N, N-methylene bisacrylamide to the styrene to the butyl acrylate is 1.5-3:1-2:0.5-2:3-6.

Description

Long-acting antibacterial anti-algae drinking water pool waterproof coating and preparation method thereof Technical Field The invention relates to the technical field of coatings, in particular to a long-acting antibacterial and anti-algae drinking water pool waterproof coating and a preparation method thereof. Background The application of the drinking water pool is more and more extensive, firstly, the drinking water pool meets the safety evaluation standard of drinking water conveying and distributing equipment and protective materials, secondly, the drinking water pool is durable and durable, and finally, the drinking water pool also needs to resist algae and bacteria. The prior art has the problems that the water-proof paint for the pool on the market has a plurality of types, but has some problems, and the water-proof paint is mainly durable. Because the special use scene is always in the water, and the sun is directly irradiated in summer, the water temperature can be increased to 50-60 ℃, and under the environment, if the paint does not have good air permeability, the paint can quickly bulge and fall off due to water vapor, so that the waterproof failure is caused. The anti-algae antibacterial property is required to inhibit the breeding of microorganisms such as algae and bacteria on the inner wall of a water tank, prevent the microorganisms from degrading a coating substrate, generating peculiar smell or affecting water quality sanitation. In the existing drinking water pool waterproof coating, MS waterproof coating (silane modified polyether coating) is of a wide application type, and the core advantage of the MS waterproof coating is derived from certain air permeability given by silane groups, but the technology has multiple performance short plates, such as no solvent, low viscosity, poor tearing strength, poor treading resistance, poor later cleaning, poor tensile strength, low elongation and poor wet base adhesive force; In summary, the existing drinking water tank waterproof paint generally has multiple problems that the air permeability and the water resistance cannot be considered, the mechanical property is insufficient, the wet base adhesive force is poor, the algae resistance and the antibacterial long-term performance are poor, the environment protection compliance hidden trouble and the like, the core requirements of safety, durability and functionality are difficult to meet at the same time, and a novel waterproof paint capable of solving the defects in a targeted manner is needed to be developed. Disclosure of Invention The invention provides a long-acting antibacterial and anti-algae drinking water pond waterproof coating, which adopts a technical route of double-component mortar, wherein liquid material is based on a compound of organic silicon emulsion, which is obtained by reacting a product of vinyl hydrogen-containing silicone oil and allyl glycidyl ether modified chitosan with N, N-methylene bisacrylamide, styrene and butyl acrylate, and modified organic silicon and organic silicon emulsion, and is matched with an antibacterial agent, an anti-algae agent and an auxiliary agent, so that the antibacterial and anti-algae function and the system stability are realized, powder material is synergistic with quartz sand through white cement, a ventilation channel is constructed by means of quartz sand, the cement is guaranteed to be waterproof, a three-dimensional toughening network is formed by PP fiber and cellulose, and the construction property and the coating compactness are optimized by matching with a water reducing agent, so that the mechanical property is greatly improved. Based on this, it is necessary to provide a long-acting antibacterial and anti-algae drinking water pond waterproof coating, which comprises a liquid material and a powder material; the liquid material comprises the following components in parts by weight: 60-75 parts of organic silicon emulsion 5-10 Parts of modified organosilicon Color paste 0.2-0.8 part 0.5-3 Parts of anti-algae agent 0.5-1 Part of antibacterial agent 0.5-3 Parts of auxiliary agent 30-50 Parts of water; The powder comprises the following components in parts by weight: 450-550 parts of white cement 450-500 Parts of quartz sand 0.5-2 Parts of PP fiber (polypropylene fiber) Cellulose 0.4-0.8 parts 2-7 Parts of water reducer; wherein the mass ratio of the liquid material to the powder material is 1:2-3; The modified organosilicon is obtained by copolymerization reaction of allyl glycidyl ether modified chitosan and vinyl hydrogen-containing silicone oil, and N, N-methylene bisacrylamide, styrene and butyl acrylate. In addition, the PP fibers and cellulose added in the powder form a synergistic toughening system, a three-dimensional supporting network can be built in the coating, the mechanical property of the waterproof coating is remarkably improved, the flexibility of the coating is ensured to adapt to micro deformation of a substrate,