CN102944063A - Antibacterial enamel tank for water heater and production method thereof - Google Patents
Antibacterial enamel tank for water heater and production method thereof Download PDFInfo
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- CN102944063A CN102944063A CN2012103689106A CN201210368910A CN102944063A CN 102944063 A CN102944063 A CN 102944063A CN 2012103689106 A CN2012103689106 A CN 2012103689106A CN 201210368910 A CN201210368910 A CN 201210368910A CN 102944063 A CN102944063 A CN 102944063A
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Abstract
The invention provides an antibacterial enamel tank for a water heater, which comprises a tank base body and an enamel coating layer arranged on the surface of the tank base body, wherein the enamel coating layer includes a bottom layer and a surface antibacterial layer; and a gas phase silicon dioxide powder body for absorbing antibacterial particles is installed in the surface antibacterial layer. Preferably, the antibacterial particles are compositions of nanometer silver powder, nanometer copper powder, nanometer copper oxide particles and nanometer silver phosphate particles; and the particle sizes of the antibacterial particles are controlled in the nanoscale. According to the antibacterial enamel tank for the water heater disclosed by the invention, the silicon dioxide powder body is doped in the enamel coating layer to enrich the antibacterial particles on the enamel surface, so that the excellent antibacterial effect can be achieved by less silver. Meanwhile, because the added antibacterial particles are mainly distributed on the enamel surface and the components of the enamel base body are not varied essentially, the mechanism and corrosion-resistant properties of the coating layer are retained. The invention also provides a production method for the enamel tank.
Description
Technical field
The present invention relates to the water-storage heater parts and make the field, relate in particular to a kind of water heater antibacterial enamel inner bag and manufacture method thereof.
Background technology
The kind of the electric heater that uses on the market and style are more and more, and function also is not quite similar.And present inner container of electric water heater is different according to material, generally can be divided three classes, and the one, add the coat of metal or plastic lining resin bed at the plain steel inwall; The 2nd, adopt stainless steel to be welded, the 3rd, apply enamel material at plain steel and make enamel inner container.Since in the water chlorion pure, the resistance to corrosion of front two kinds of water heater water courages is limited.Therefore, therefore enamel inner container is most widely used at present because having the advantages such as corrosion resistance and physical life be long.
Therefore in the existing technology, enamel inner container has water storage at water heater water courage median year because water storage is more, often larger, as the long period need not, form stagnant water, be easy to breed bacteria.Unfavorable to user's health.Therefore be necessary to adopt antibacterial process, suppress the bacteria breed of long-time water storage.And water quality is a great problem of electric heater product technology such as " stagnant water is said " of the problem such as not using for a long time to cause always.
At present, antibacterial enamel is the most promising electric heater water courage antibiotic method.Traditional the most general additive of antibacterial enamel is that the inorganic silver salt of employing is antiseptic, and the addition of silver salt need to be more than 2% usually; This will greatly increase production cost, be not easy to use at the inner container of electric water heater of high surface area, and the original properties of enamel layer itself is produced adverse influence.In addition, also having document to mention the employing complex antimicrobials, mainly is organic silver antiseptic and photocatalyst acting in conjunction.Because water heater liner is in the environment of a sealing, so photocatalyst can not have sterilizing ability at this.Have document to propose to adopt the multilayer enamel coating, but multilayer enamel needs repeatedly sintering, technique is loaded down with trivial details, and power consumption is large, has also increased production cost.
In view of this, be necessary very to develop that a kind of low cost of manufacture, manufacturing process are simple, the New-type water heater enamel water storage liner of good anti-bacterial effect.
Summary of the invention
For the deficiencies in the prior art, one object of the present invention is to develop a kind of low cost of manufacture, little on the enamel property impact, and the water heater enamel inner container of good anti-bacterial effect.
Another object of the present invention is to provide the simple water heater of a kind of production technology enamel inner container manufacture method.
For reaching above purpose, the present invention adopts following technical scheme.
A kind of water heater antibacterial enamel inner bag, comprise the inner bag matrix, and be arranged on the enamel coating of inner bag matrix surface, it is characterized in that, described enamel coating comprises bottom and antibacterial surface layer, is provided with the aerosil powder of adsorption antibacterial particle in this antibacterial surface layer.
As with improvement, described antibiotic ion is one or more in nano-silver powder, copper nanoparticle, nano oxidized copper particle and the nanometer silver orthophosphate particle.
As with improvement, comprise in the described enamel coating: percentage by weight is 0.5-3%, and particle size range is at the copper nanoparticle of 30nm-50nm; Percentage by weight is 0-0.4%, and particle size range is at the nano-silver powder of 20nm-60nm; Percentage by weight is 0.2-0.8%, and particle size range is at the aerosil powder of 150nm-250nm; Percentage by weight is 0.1-0.5%, and particle size range is at the silver orthophosphate particle of 100nm-500nm; And percentage by weight is 0-0.5%, and particle size range is at the copper oxide particle of 100nm-600nm.
As with improvement, contain dispersant in the described enamel coating, the percentage by weight of dispersant accounts for enamel coating 0.2-0.5%.
As with improvement, described dispersant is silicates and/or alkali metal phosphate class inorganic dispersant, and this inorganic dispersant is waterglass, sodium phosphate trimer, calgon, one or more in the sodium pyrophosphate.
As with improvement, described dispersant is organic dispersing agent; This organic dispersing agent is triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester.
A kind of water heater antibacterial enamel inner bag provided by the invention, by in enamel coating, mixing the aerosil powder, utilize the specific area of aerosil large, absorption affinity is strong and the antisolvent precipitation performance is adsorbed on the enamel coating surface with antimicrobial particle and forms the antibacterial surface layer, so that enamel coating antibacterial surface particle enrichment, just obtain good antibacterial effect thereby reach with a small amount of silver particles, save the manufacturing cost of antibacterial enamel coating.Simultaneously, because the antimicrobial particle that adds mainly is enriched in the antibacterial surface layer, and bottom and inner bag substrate contact position composition change not quite, and be therefore little on mechanics and the decay resistance impact of enamel itself; Good with the adhesion of inner bag, decay resistance is strong.In addition, the diameter of particle of antimicrobial particle is convenient to overflow from coating at nanoscale, has good anti-microbial property, and Chinese People's Anti-Japanese Military and Political College enterobacteria and staphylococcus reach 90-99%.
Further, the present invention also provides a kind of manufacture method based on above-mentioned antibacterial enamel inner bag, comprising:
The first step, the inner bag moulding is made moulding with the inner bag matrix by welding;
Second step, blasting treatment adopts blasting craft to remove the surface oxide layer of inner bag inwall;
In the 3rd step, the coating coating sintering at first, adopted dip coating that the enamel coating slurry evenly is coated in the inner bag inwall, 70 ℃-100 ℃ lower bakings 10-20 minute; Then, at 750 ℃ of-910 ℃ of lower sintering 10-20 minutes, form the antibacterial enamel coating.
As with improvement, comprise the coating preparation process before the described coating coating sintering step, described coating preparation process is specially: at first get by the percentage by weight of coating: the 0.5-3.0% particle diameter is at the copper nanoparticle of 30nm-50nm, the 0-0.4% particle diameter is at the nano-silver powder of 20nm-60nm, the 0.2-0.8% particle diameter is at the nano fumed silica powder of 150nm-250nm, the 0.1-0.5% particle diameter is at the silver orthophosphate particle of 100nm-500nm, and the 0-0.5% particle diameter is at the copper oxide particle of 100nm-600nm; Then above-mentioned powder is mixed with water, add dispersant, adopt ultrasonic disperser to disperse; Powder after will disperseing at last adds in the enamel slurry, high-speed stirred.
As with improvement, described dispersant is organic dispersing agent or salt inorganic dispersant, and the percentage by weight of dispersant is 0.2-0.5%.
As with improvement, described dispersant triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester.
Antibacterial enamel inner bag manufacture method provided by the invention, by in coating, mixing the aerosil particle, so that when the coating sintering, aerosil particle adsorption antibacterial ion also floats up to coating surface formation antibacterial surface layer, reaching only needs the once sintered effect that just realizes the enrichment of coating surface antimicrobial particle, manufacturing process is simple, and processing cost is low.
Description of drawings
Figure 1 shows that antibacterial enamel inner bag partial sectional view provided by the invention;
Figure 2 shows that antibacterial enamel inner bag manufacture method flow chart provided by the invention.
The specific embodiment
For further setting forth essence of the present invention, below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Antibacterial enamel inner bag embodiment
As shown in Figure 1, a kind of water heater antibacterial enamel inner bag comprises inner bag matrix 1, and be arranged on the enamel coating 2 on inner bag matrix 1 surface, wherein, described enamel coating comprises bottom 3 and antibacterial surface layer 4, is provided with the aerosil powder 5 of adsorption antibacterial particle in this antibacterial surface layer 4.Preferably, described antimicrobial particle is nano-silver powder, copper nanoparticle, nano oxidized copper particle and nanometer silver orthophosphate particle.
Wherein, composition and the particle diameter of described antimicrobial particle are as follows: the percentage by weight of copper nanoparticle is 0.5-3%, and particle size range is at 30nm-50nm; The percentage by weight of nano-silver powder is 0-0.4%, and particle size range is at 20nm-60nm; The percentage by weight of silver orthophosphate particle is 0.1-0.5%, and particle size range is at 100nm-500nm; The percentage by weight of copper oxide particle is 0-0.5%, and particle size range is at 100nm-600nm.Described aerosil powder percentage by weight is 0.2-0.8%, and particle size range is at 150nm-250nm.In other embodiments, described antibiotic ion is one or more in nano-silver powder, copper nanoparticle, nano oxidized copper particle and the nanometer silver orthophosphate particle, is not limited to the present embodiment.
Further, also include dispersant in the described enamel coating 2, the percentage by weight of dispersant accounts for enamel coating 0.2-0.5%; In the present embodiment, preferred dispersant is waterglass.In other embodiments, described dispersant is organic matter dispersant triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester; Or be the inorganic dispersant sodium phosphate trimer, calgon, one or more in the sodium pyrophosphate; Or be other silicates and/or alkali metal phosphate class, be not limited to the present embodiment.
A kind of water heater antibacterial enamel inner bag that the present embodiment provides, in the powder of traditional enamel, sneak into antimicrobial particle and the aerosil particles such as Nano Silver powder, Nanometer Copper powder, nano oxidized copper particle, nanometer silver orthophosphate particle, utilize the advantage that specific area is large, adsorption power is strong, dispersive property is good of aerosil particle, form the antibacterial surface layer so that antimicrobial particle is enriched in enamel surfaces, thereby reach the purpose that just can play good antibacterial effect with a small amount of silver.Simultaneously, because the antimicrobial particle that adds mainly is distributed in the antibacterial surface layer, and bottom enamel composition does not have change substantially, has kept machinery and the corrosion resisting property of coating; Adhesion is good, and decay resistance is strong.In addition, the diameter of particle of antimicrobial particle is convenient to overflow from coating at nanoscale, has good anti-microbial property, and Chinese People's Anti-Japanese Military and Political College enterobacteria and staphylococcus reach 90-99%.
Antibacterial enamel inner bag manufacture method embodiment
As shown in Figure 2, the present invention also provides a kind of manufacture method based on above-mentioned antibacterial enamel inner bag, and concrete manufacturing step is as follows.
First step step1, the inner bag moulding is made moulding with the inner bag matrix by welding.
Second step step2, blasting treatment adopts blasting craft to remove the surface oxide layer of inner bag inwall.
The 3rd step step3, the coating coating sintering at first, adopted dip coating that the enamel coating slurry evenly is coated in the inner bag inwall, 70 ℃-100 ℃ lower bakings 10-20 minute; Then, at 750 ℃ of-910 ℃ of lower sintering 10-20 minutes, form the antibacterial enamel coating.
Wherein, comprised also that before coating coating sintering step the step coating prepares step.Described step coating prepares the step concrete operations: at first get by the percentage by weight of coating: the 0.5-3.0% particle diameter is at the copper nanoparticle of 30nm-50nm, the 0-0.4% particle diameter is at the nano-silver powder of 20nm-60nm, the 0.2-0.8% particle diameter is at the nano fumed silica powder of 150nm-250nm, the 0.1-0.5% particle diameter is at the silver orthophosphate particle of 100nm-500nm, and the 0-0.5% particle diameter is at the copper oxide particle of 100nm-600nm; Then above-mentioned powder is mixed with water, add dispersant, adopt ultrasonic disperser to disperse; Powder after will disperseing at last adds in the enamel slurry, and high-speed stirred guarantees that powder is dispersed in the enamel slurry.In the present embodiment, preferred coating preparation process according to the actual conditions adjustment, is not limited to the present embodiment in the second step blasting treatment among other embodiment.
Further, the percentage by weight of described dispersant accounts for enamel coating 0.2-0.5%; In the present embodiment, preferred dispersant is waterglass.In other embodiments, described dispersant is organic matter dispersant triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester; Or be the inorganic dispersant sodium phosphate trimer, calgon, one or more in the sodium pyrophosphate; Or be other silicates and/or alkali metal phosphate class, be not limited to the present embodiment.
A kind of water heater that the present embodiment provides antibacterial enamel inner bag manufacture method, by in enamel coating, mixing the aerosil particle, so that when sintering, aerosil particle adsorption antibacterial ion also floats up to enamel coating surface formation antibacterial surface layer, reaching only needs the once sintered effect that just realizes the enrichment of enamel coating antibacterial surface particle, manufacturing process is simple, and processing cost is low.
The above specific embodiment has been described in detail essence of the present invention, but can not come protection scope of the present invention is limited with this.Apparently, under the enlightenment of essence of the present invention, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that these improvement and modification all drop within the claim protection domain of the present invention.
Claims (8)
1. water heater antibacterial enamel inner bag, comprise the inner bag matrix, and be arranged on the enamel coating of inner bag matrix surface, it is characterized in that, described enamel coating comprises bottom and antibacterial surface layer, is provided with the aerosil powder of adsorption antibacterial particle in this antibacterial surface layer; Comprise in the described antibacterial surface layer: percentage by weight is 0.5-3%, and particle size range is at the copper nanoparticle of 30nm-50nm; Percentage by weight is 0-0.4%, and particle size range is at the nano-silver powder of 20nm-60nm; Percentage by weight is 0.2-0.8%, and particle size range is at the aerosil powder of 150nm-250nm; Percentage by weight is 0.1-0.5%, and particle size range is at the silver orthophosphate particle of 100nm-500nm; And percentage by weight is 0-0.5%, and particle size range is at the copper oxide particle of 100nm-600nm.
2. antibacterial enamel inner bag according to claim 1 is characterized in that, contains dispersant in the described enamel coating, and the percentage by weight of dispersant accounts for enamel coating 0.2-0.5%.
3. antibacterial enamel inner bag according to claim 2 is characterized in that, described dispersant is silicates and/or alkali metal phosphate class inorganic dispersant, this inorganic dispersant is waterglass, sodium phosphate trimer, calgon, one or more in the sodium pyrophosphate.
4. antibacterial enamel inner bag according to claim 2 is characterized in that, described dispersant is organic dispersing agent; This organic dispersing agent is triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester.
5. one kind based on the described antibacterial enamel inner bag of claim 1-4 manufacture method, it is characterized in that, comprising:
The first step, the inner bag moulding is made moulding with the inner bag matrix by welding;
Second step, blasting treatment adopts blasting craft to remove the surface oxide layer of inner bag inwall;
In the 3rd step, the coating coating sintering at first, adopted dip coating that the enamel coating slurry evenly is coated in the inner bag inwall, 70 ℃-100 ℃ lower bakings 10-20 minute; Then, at 750 ℃ of-910 ℃ of lower sintering 10-20 minutes, form the antibacterial enamel coating.
6. manufacture method according to claim 5, it is characterized in that, comprise the coating preparation process before the described coating coating sintering step, described coating preparation process is specially: at first get by the percentage by weight of coating: the 0.5-3.0% particle diameter is at the copper nanoparticle of 30nm-50nm, the 0-0.4% particle diameter is at the nano-silver powder of 20nm-60nm, the 0.2-0.8% particle diameter is at the nano fumed silica powder of 150nm-250nm, the 0.1-0.5% particle diameter is at the silver orthophosphate particle of 100nm-500nm, and the 0-0.5% particle diameter is at the copper oxide particle of 100nm-600nm; Then above-mentioned powder is mixed with water, add dispersant, adopt ultrasonic disperser to disperse; Powder after will disperseing at last adds in the enamel slurry, high-speed stirred.
7. manufacture method according to claim 5 is characterized in that, described dispersant is organic dispersing agent or salt inorganic dispersant, and the percentage by weight of dispersant is 0.2-0.5%.
8. manufacture method according to claim 5 is characterized in that, described dispersant triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, one or more in the fatty acid polyethylene glycol ester.
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| CN201210368910.6A CN102944063B (en) | 2012-09-27 | 2012-09-27 | Antibacterial enamel tank for water heater and production method thereof |
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| CN201210368910.6A CN102944063B (en) | 2012-09-27 | 2012-09-27 | Antibacterial enamel tank for water heater and production method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104101082A (en) * | 2013-09-04 | 2014-10-15 | 芜湖美的厨卫电器制造有限公司 | Antibacterial water heater |
| CN104110844A (en) * | 2013-09-04 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Inner container of antibacterial water heater, manufacturing method of inner container and antibacterial water heater with the inner container |
| CN104488966A (en) * | 2014-12-10 | 2015-04-08 | 陕西科技大学 | Antimicrobial agent for quartz-carried nano silver phosphate ceramic and preparation method thereof |
| CN106308530A (en) * | 2015-07-03 | 2017-01-11 | 佛山市顺德区美的电热电器制造有限公司 | Inner container and surface processing method thereof, and cooker |
| CN112047512A (en) * | 2019-06-06 | 2020-12-08 | 芜湖美的厨卫电器制造有限公司 | Scale inhibition and sterilization device and electric appliance |
| CN112176344A (en) * | 2020-08-31 | 2021-01-05 | 佛山市三高保温水箱有限公司 | Process method for enameling inner end cover of enamel inner container of air energy water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104101082A (en) * | 2013-09-04 | 2014-10-15 | 芜湖美的厨卫电器制造有限公司 | Antibacterial water heater |
| CN104110844A (en) * | 2013-09-04 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Inner container of antibacterial water heater, manufacturing method of inner container and antibacterial water heater with the inner container |
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| CN104488966B (en) * | 2014-12-10 | 2017-11-17 | 陕西科技大学 | A kind of quartz load nano silver ceramics antiseptic and preparation method thereof |
| CN106308530A (en) * | 2015-07-03 | 2017-01-11 | 佛山市顺德区美的电热电器制造有限公司 | Inner container and surface processing method thereof, and cooker |
| CN112047512A (en) * | 2019-06-06 | 2020-12-08 | 芜湖美的厨卫电器制造有限公司 | Scale inhibition and sterilization device and electric appliance |
| CN112176344A (en) * | 2020-08-31 | 2021-01-05 | 佛山市三高保温水箱有限公司 | Process method for enameling inner end cover of enamel inner container of air energy water heater |
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| CN102944063B (en) | 2015-06-17 |
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