CN103642355A - Preparation method of water-based nano-silver / fluorocarbon anti-bacteria coating - Google Patents
Preparation method of water-based nano-silver / fluorocarbon anti-bacteria coating Download PDFInfo
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- CN103642355A CN103642355A CN201310593292.XA CN201310593292A CN103642355A CN 103642355 A CN103642355 A CN 103642355A CN 201310593292 A CN201310593292 A CN 201310593292A CN 103642355 A CN103642355 A CN 103642355A
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Abstract
A preparation method of a water-based nano-silver / fluorocarbon anti-bacteria coating, and the preparation method comprises the following steps: a, the preparation of nano-silver particles: weighing polyvinylpyrrolidone, putting into deionized water, stirring fully, adding silver nitrate with the same mass of the polyvinylpyrrolidone, mixing evenly, then adding absolute ethyl alcohol, and stirring until the solution becomes clear and transparent; adding reductant hydrazine hydrate, stirring to prepare a required sample; b, the preparation of the nano-silver / fluorocarbon anti-bacteria coating: adding a dispersing agent and part of a defoaming agent into a color matching cylinder, mixing evenly, adding nano-silver particle sol, kaolin, light calcium, titanium dioxide and a rheological additive, grinding in a sand mill for 30 min until no particle is existed, adding tertiary fluoro emulsion, stirring until the powder, the emulsion and the remaining additive are mixed evenly, and filtering and packing. The water-based nano-silver / fluorocarbon anti-bacteria coating has better in antibacterial property, and is more excellent in weather fastness, durability, chemical resistance, corrosion resistance, non adhesiveness, stain resistance and the like compared with a general coating.
Description
Technical field
the invention belongs to material science, particularly a kind of preparation method of antibiotic paint.
Background technology
along with coating industry is further strict to the control of volatile harmful organic compound content, coating Water-borne modification trend is more and more obvious.If film coated surface can infect various diseases after existing harmful microorganism to contact with human body, threaten HUMAN HEALTH.An investigation of living environment microbes contamination shows: rural area total plate count is 138.94cfu/cm2, and cities and towns are 72.10cfu/cm2.The pollution that in visible living environment, microorganism is caused is very important.Antibiotic paint can directly be coated with and be contained on various materials, because it is easy to use, receives much concern, and the coating that exploitation has antibacterial is one of direction of coatings industry development.At present, coating mainly contains natural antibacterial agent, organic antibacterial agent and inorganic antiseptic three major types with antiseptic-germicide.Inorganic antiseptic is nanometer silver particularly, and due to surface effects, its antibacterial ability is the more than 200 times of micro nanometer silver particle, and anti-microbial property is also far longer than traditional silver ion disinfectant (as Silver Nitrate and Sulfadiazine Silver), is novel high-efficient antibacterial agent.In recent years, nanometer silver technology of preparing develops rapidly, and method is varied.Press reaction conditions, mainly comprise reductive agent reduction, illumination, electrolysis, gamma Rays etc.Along with coating industry is further strict to the control of volatile harmful organic compound content, coating Water-borne modification trend is more and more obvious.If there is harmful microorganism in film coated surface, after contacting with human body, also can infect various diseases, threaten HUMAN HEALTH.Therefore, in coating, add a small amount of nano-silver powder, make it have anti-microbial property and there is Practical significance.
Summary of the invention
the preparation method who the object of this invention is to provide a kind of water nano silver/fluorine carbon antibiotic paint, to solve the problem of prior art.
The present invention is by the following technical solutions:
A preparation method for water nano silver/fluorine carbon antibiotic paint, comprises the following steps:
The preparation of a, nano silver particles
Take polyvinylpyrrolidone and insert in the deionized water of 50 ℃, fully stir 10 min, add the Silver Nitrate with polyvinylpyrrolidone equal quality, after mixing, add dehydrated alcohol, be stirred to solution clear; Add reductive agent hydrazine hydrate, at 50 ℃, fully after stirring 2 h, make required sample, i.e. nano silver particles colloidal sol; Prepared nano silver particles colloidal sol is yellow-green colour;
The preparation of b, nanometer silver/fluorine carbon antibiotic paint
Dispersion agent and part defoamer are added in toning cylinder, stir, add nano silver particles colloidal sol, kaolin, fine particle calcium carbonate, titanium dioxide and auxiliary rheological agents, in sand mill, grind 30 min extremely without particle.Under stirring at low speed, slowly add the tertiary fluorine emulsion being formed by methacrylic acid (ester), acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization, be stirred to powder and mix with emulsion and remaining auxiliary agent, by 200 object silk screen filter, pack.
Described tertiary fluorine emulsion is formed by methacrylic acid, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization.
Described tertiary fluorine emulsion is formed by methacrylic ester, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization.
Beneficial effect: the present invention be take Tert-Fluoro Contained Waterborne emulsion as base-material, and nanometer silver is antibacterial filler, and adds other filler and auxiliary agent, has prepared a kind of water nano silver fluorine carbon antibiotic paint.The tertiary fluorine copolymer emulsion adopting, by methacrylic acid (ester), acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization, formed, there is outstanding weathering resistance, protect light tint retention, excellent water tolerance, alkali resistance and resistance to soiling, large and application property good to the binding ability of filler.Obtained coating is along with the increase of nano-silver powder content, and its antibacterial ability increases, and can continue within a certain period of time sterilization.Water nano silver fluorine carbon antibiotic paint has good germ resistance, and has possessed the weathering resistance more excellent than general coating, weather resistance, chemical proofing, preservative property, non-adhesive and stain resistance etc., and high comprehensive performance, has vast potential for future development.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
1, the polyvinylpyrrolidone that takes 10.0 g is inserted in the deionized water of 50 ℃, fully stirs 10 min, adds 10.0 g Silver Nitrates, after mixing, adds dehydrated alcohol, is stirred to solution clear; Add reductive agent hydrazine hydrate, at 50 ℃, fully after stirring 2 h, make required sample, i.e. nano silver particles colloidal sol; Prepared nano silver particles colloidal sol is yellow-green colour;
2, the preparation of nanometer silver/fluorine carbon antibiotic paint
Dispersion agent and part defoamer are added in toning cylinder, stir, add nano silver particles colloidal sol, kaolin, fine particle calcium carbonate, titanium dioxide and auxiliary rheological agents, in sand mill, grind 30 min extremely without particle.Under stirring at low speed, slowly add the tertiary fluorine emulsion being formed by methacrylic acid, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization, be stirred to powder and mix with emulsion and remaining auxiliary agent, by 200 object silk screen filter, pack.
Embodiment 2
1, the polyvinylpyrrolidone that takes 1.0 g is inserted in the deionized water of 50 ℃, fully stirs 10 min, adds 1.0 g
Silver Nitrate, adds dehydrated alcohol after mixing, and is stirred to solution clear; Add reductive agent hydrazine hydrate, at 50 ℃, fully after stirring 2 h, make required sample, i.e. nano silver particles colloidal sol; Prepared nano silver particles colloidal sol is yellow-green colour;
2, the preparation of nanometer silver/fluorine carbon antibiotic paint
Dispersion agent and part defoamer are added in toning cylinder, stir, add nano silver particles colloidal sol, kaolin, fine particle calcium carbonate, titanium dioxide and auxiliary rheological agents, in sand mill, grind 30 min extremely without particle.Under stirring at low speed, slowly add the tertiary fluorine emulsion being formed by methacrylic ester, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization, be stirred to powder and mix with emulsion and remaining auxiliary agent, by 200 object silk screen filter, pack.
According to exterior wall coating material of synthetic resin emulsion national standard (GB/T9755-2201), synthetic water nano silver powder antibiotic paint is detected, detected result is in Table 1.
Claims (3)
1. a preparation method for water nano silver/fluorine carbon antibiotic paint, is characterized in that: comprise the following steps:
The preparation of a, nano silver particles
Take polyvinylpyrrolidone and insert in the deionized water of 50 ℃, fully stir 10 min, add the Silver Nitrate with polyvinylpyrrolidone equal quality, after mixing, add dehydrated alcohol, be stirred to solution clear; Add reductive agent hydrazine hydrate, at 50 ℃, fully after stirring 2 h, make required sample, i.e. nano silver particles colloidal sol; Prepared nano silver particles colloidal sol is yellow-green colour;
The preparation of b, nanometer silver/fluorine carbon antibiotic paint
Dispersion agent and part defoamer are added in toning cylinder, stir, add nano silver particles colloidal sol, kaolin, fine particle calcium carbonate, titanium dioxide and auxiliary rheological agents, in sand mill, grind 30 min extremely without particle, under stirring at low speed, slowly add tertiary fluorine emulsion, be stirred to powder and mix with emulsion and remaining auxiliary agent, by 200 object silk screen filter, pack.
2. the preparation method of water nano silver/fluorine carbon antibiotic paint as claimed in claim 1, is characterized in that: described tertiary fluorine emulsion is formed by methacrylic acid, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization.
3. the preparation method of water nano silver/fluorine carbon antibiotic paint as claimed in claim 1, is characterized in that: described tertiary fluorine emulsion is formed by methacrylic ester, acrylate hexafluoro butyl ester, tertiary ethylene carbonate copolymerization.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593292.XA CN103642355A (en) | 2013-11-23 | 2013-11-23 | Preparation method of water-based nano-silver / fluorocarbon anti-bacteria coating |
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| CN201310593292.XA CN103642355A (en) | 2013-11-23 | 2013-11-23 | Preparation method of water-based nano-silver / fluorocarbon anti-bacteria coating |
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| CN103642355A true CN103642355A (en) | 2014-03-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10751802B1 (en) | 2019-10-03 | 2020-08-25 | King Saud University | Method of producing silver nanoparticles using red sand |
| CN112980314A (en) * | 2021-03-22 | 2021-06-18 | 苏州燕雀新材料科技有限公司 | Preparation method of PU (polyurethane) antibacterial paint |
| CN115418167A (en) * | 2022-08-29 | 2022-12-02 | 山东富海材料科技有限公司 | Scratch-resistant wear-resistant color coating steel plate and preparation method thereof |
| CN116987436A (en) * | 2023-09-14 | 2023-11-03 | 东北大学 | Modified WPU coating, preparation method thereof and application thereof in antibacterial aspect |
-
2013
- 2013-11-23 CN CN201310593292.XA patent/CN103642355A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10751802B1 (en) | 2019-10-03 | 2020-08-25 | King Saud University | Method of producing silver nanoparticles using red sand |
| CN112980314A (en) * | 2021-03-22 | 2021-06-18 | 苏州燕雀新材料科技有限公司 | Preparation method of PU (polyurethane) antibacterial paint |
| CN115418167A (en) * | 2022-08-29 | 2022-12-02 | 山东富海材料科技有限公司 | Scratch-resistant wear-resistant color coating steel plate and preparation method thereof |
| CN116987436A (en) * | 2023-09-14 | 2023-11-03 | 东北大学 | Modified WPU coating, preparation method thereof and application thereof in antibacterial aspect |
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Application publication date: 20140319 |