CN103992725A - Drinking water tank paint and preparation method thereof - Google Patents
Drinking water tank paint and preparation method thereof Download PDFInfo
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- CN103992725A CN103992725A CN201410215808.1A CN201410215808A CN103992725A CN 103992725 A CN103992725 A CN 103992725A CN 201410215808 A CN201410215808 A CN 201410215808A CN 103992725 A CN103992725 A CN 103992725A
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Abstract
The invention discloses a drinking water tank paint and a preparation method thereof. The paint is formed by mixing a component A and a component B. The component A is composed of the following components in parts by weight: 35-42 parts of epoxy resin, 2-3 parts of superfine white carbon black, 6-15 parts of precipitated barium sulfate, 10-15 parts of lithopone, 20-25 parts of anatase titanium white, 5-8 parts of xylene, 3-5 parts of isobutanol, 3-6 parts of DBE high boiling solvent, 0.1-0.5 part of defoaming agent, 0.5-0.8 part of wetting and dispersing agent, 1-2 parts of anti-settling agent, 1-3 parts of adhesion promoter and 0.3-0.5 part of leveling agent. The component B is composed of the following components in parts by weight: 70-80 parts of polyamide and 20-30 parts of xylene. The paint mainly uses the epoxy resin and polyamide curing agent compounded with the main film forming material; and the polymerization-function material hydrophobic gas-phase silicon dioxide superfine white carbon black contained in the formula system enhances self cleaning performance, compactness, strength, toughness, ductility, hardness, wear resistance, fouling resistance, chemical corrosion resistance and primer-finish coat compatibility of the coating, and thus, the paint is a non-toxic self-cleaning wear-resistant epoxy drinking water tank paint.
Description
Technical field
The invention belongs to paint field, be specifically related to a kind of potable water tank paint and preparation method thereof.
Background technology
Boats and ships tap water basin and municipal tap water transport pipe are taking carbon steel as main at present, and Carbon Steel Tank or inner-walls of duct outer wall need apply corrosion protection coating, inwall general aseptic coating is nontoxic epoxy coating now, the technical formula of currently available products exists various deficiencies, and as low in hardness, water-fast performance of flushing is poor, spot is serious, self-cleaning is poor, can not meet work-ing life such as more than 10 years long-effective corrosion demand etc.Under normal circumstances, make pipeline obtain better protecting and conventionally all will brush one to surfacer, so not only cause the increase of material cost and construction cost, coating also increases time of drying simultaneously, greatly reduces operating efficiency.
Summary of the invention
The invention provides the unification of a kind of bottom surface, nontoxic self-cleaning potable water tank paint that is applied to drinking water pipeline, container inner wall and preparation method thereof, meet the requirement of national drinking water related product hygienic standard, this protective system has the above hardness of 5H, nontoxic, anti-wear-resisting, coating compactness is good, prime without adding, reach more than 800 hours by salt-fog test, there is good resistance to soiling, water tolerance, chemical resistance, anti-corrosive durability can reach more than 30 years, the needs of satisfied boats and ships tap water basin now and the development of municipal tap water transport pipe.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of potable water tank paint, is mixed by first component and second component, wherein by weight, consisting of of first component: epoxy resin 35-42 part, superfine white carbon black 2-3 part, process white 6-15 part, zinc sulfide white 10-15 part, anatase thpe white powder 20-25 part, dimethylbenzene 5-8 part, isopropylcarbinol 3-5 part, DBE high boiling solvent 3-6 part, defoamer 0.1-0.5 part, wetting dispersing agent 0.5-0.8 part, anti-settling agent 1-2 part, adhesion promoter 1-3 part, flow agent 0.3-0.5 part; Consisting of of second component: polymeric amide 70-80 part, dimethylbenzene 20-30 part.
Preferably, first component and second component are mixed and are used with the weight ratio of 3-4:1.
Preferably, the reactive hydrogen equivalent of described polymeric amide is 250-270, and amine value is 170-200mg.KOH/g.
Preferably, described superfine white carbon black is hydrophobicity aerosil.
Preferably, described epoxy resin is bisphenol A type epoxy resin, and excellent sticking power, preservative property are provided.
Preferably, the oxirane value ep/100g of described epoxy resin is 0.18-0.22, and softening temperature is 64-76 DEG C.
Preferably, described adhesion promoter is γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane.
A method of preparing described potable water tank paint, is mixed by previously prepared good first component and second component, and the preparation of described first component and second component comprises the following steps respectively:
A. first component:
(1), to the dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, anti-settling agent, adhesion promoter, defoamer and the flow agent that add successively epoxy resin, total consumption 75-85% in Scattered Kettle, under 1000-1200 rev/min of speed conditions, disperse 20-30min to fully dissolving;
(2) in the mixture of step (1), add zinc sulfide white, anatase thpe white powder, process white, under the speed conditions of 1000-1200 rev/min, disperse after 20-30min, be ground to fineness≤30 μ m;
(3) prepare superfine white carbon black cream: add successively residue dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, wetting dispersing agent, superfine white carbon black, under 1000-1200 rev/min of speed conditions, disperse 20-30min;
(4) to the superfine white carbon black cream that adds step (3) to make in the mixture of step (2), high speed dispersion 30-40min under 800-1000 rev/min of speed conditions;
B. second component:
In Scattered Kettle, add successively polymeric amide, dimethylbenzene to be uniformly mixed, stirring velocity is 100-200 rev/min, and churning time is 15-20min.
Process white stable in properties, is insoluble in water, acid, alkali and to human body toxicological harmless effect, Medical barium meal main component is also barium sulfate.The introducing of process white can increase the hardness of paint film, wear-resisting, resistance to chemical attack.
One of pigment is selected zinc sulfide white, and wherein main component is zinc sulphide, barium sulfate.Zinc sulphide is stable, water insoluble in dry air, is applicable to solvent based coating, can improve the water resistance of paint film.
Process white and zinc sulfide white combination, can increase coating hardness, has stable chemical resistance.
Two of pigment is selected anatase thpe white powder, is mainly nontoxic TiO
2pigment.
Described superfine white carbon black is hydrophobicity aerosil, molecular formula SiO
2, Stability Analysis of Structures, nontoxic, can make intensity, toughness, the ductility of epoxypaint all increase substantially.Hydrophobicity aerosil is for example, by wetting ability aerosil and reactive silane (chlorosilane or hexamethyldisilazane) chemical reaction to occur to make.Different from script wetting ability silicon-dioxide, hydrophobicity aerosil can not be moistening by water institute.Although hydrophobicity aerosil density is greater than the density of water, on they can be bubbled through the water column.After hydrophobization, the amount of the moisture absorbing can significantly reduce than original wetting ability gas phase SiClx.Surface is with the AEROSIL R202 of polydimethylsiloxane and have the hydrophobic grouping of long-chain with the surface of the AEROSIL R805 of octane group, can be effective the rheological characteristics of improving many liquid polymeric systems, especially in epoxy-resin systems; Can also improve intensity and unit elongation.Epoxy resin is basic resin material, and aerosil is added in epoxy resin, is structurally different from the epoxy resin-base composite material that coarse-grain silicon-dioxide (white carbon black etc.) adds completely, coarse-grain SiO
2generally add as strengthening agent, it is mainly distributed in the interchain of macromolecular material, and aerosil is due to features such as the serious coordination deficiency in surface, huge specific surface area and surface are oxygen debt, make it show extremely strong activity, be easy to play bonding action with the oxygen of epoxy ring molecule, improve intermolecular bonding force, be still distributed in the space of macromolecular chain with some aerosil particle of fashion, with coarse-grain SiO
2particle Phase comparison, shows very high stream ripples, thereby epoxide resin material intensity, toughness, ductility that aerosil is added all increase substantially.
Preferably, described wetting dispersing agent is modified siloxane base polymer.
Preferably, described defoamer is fluorinated silicone solution.
Preferably, described flow agent is polysiloxane polyether copolymer.
Preferably, its structure of described adhesion promoter is two ends with can reactive functionality.One end can be reacted with the inorganics composition of substrate surface and be generated the group with reactive hydrogen that silanol, the other end can react with epoxy resin.Adhesion promoter is equivalent to the bridge of base material and coating like this, increases both bonding forces, thereby the sticking power of paint film is improved, and abrasion resistance improves.
The invention has the beneficial effects as follows: the present invention selects epoxy resin to coordinate main film forming matter with polyamide curing agent, formula system is containing the ultra-fine White Carbon black of polymerizable functional material hydrophobicity aerosil, increasing the self-cleaning, compactness, intensity, toughness, ductility, coating hardness of coating, anti-wear, resistance to soiling, chemical resistance priming paint finish paint unification property, is a kind of nontoxic self-cleaning high abrasion epoxy drinking-water storehouse coating.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A kind of potable water tank paint, is mixed by first component and second component, wherein by weight, consisting of of first component: 35 parts of epoxy resin, 3 parts of superfine white carbon blacks, 15 parts of process whites, 10 parts, zinc sulfide white, 25 parts of anatase thpe white powders, 5 parts of dimethylbenzene, 3 parts of isopropylcarbinols, 3 parts of DBE high boiling solvents, 0.1 part of defoamer, 0.5 part of wetting dispersing agent, 1 part of anti-settling agent, 1 part of adhesion promoter; Consisting of of second component: 70 parts of polymeric amide, 30 parts of dimethylbenzene.
First component and second component are mixed and are used with the weight ratio of 4:1.
Embodiment 2
A kind of potable water tank paint, is mixed by first component and second component, wherein by weight, consisting of of first component: 42 parts of epoxy resin, 2 parts of superfine white carbon blacks, 6 parts of process whites, 10 parts, zinc sulfide white, 20 parts of anatase thpe white powders, 8 parts of dimethylbenzene, 5 parts of isopropylcarbinols, 6 parts of DBE high boiling solvents, 0.5 part of defoamer, 0.8 part of wetting dispersing agent, 2 parts of anti-settling agents, 3 parts of adhesion promoters; Consisting of of second component: 80 parts of polymeric amide, 20 parts of dimethylbenzene.
First component and second component are mixed and are used with the weight ratio of 3:1.
Embodiment 3
A method of preparing described potable water tank paint, is mixed by previously prepared good first component and second component, and the preparation of described first component and second component comprises the following steps respectively:
A. first component:
(1), to the dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, anti-settling agent, adhesion promoter, defoamer and the flow agent that add successively epoxy resin, total consumption 75-85% in Scattered Kettle, under 1000-1200 rev/min of speed conditions, disperse 20-30min to fully dissolving;
(2) in the mixture of step (1), add zinc sulfide white, anatase thpe white powder, process white, under the speed conditions of 1000-1200 rev/min, disperse after 20-30min, be ground to fineness≤30 μ m;
(3) prepare superfine white carbon black cream: add successively residue dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, wetting dispersing agent, superfine white carbon black, under 1000-1200 rev/min of speed conditions, disperse 20-30min;
(4) to the superfine white carbon black cream that adds step (3) to make in the mixture of step (2), high speed dispersion 30-40min under 800-1000 rev/min of speed conditions;
B. second component:
In Scattered Kettle, add successively polymeric amide, dimethylbenzene to be uniformly mixed, stirring velocity is 100-200 rev/min, and churning time is 15-20min.
Coating prepared by above-described embodiment 2 is tested according to standard: GB5369-2008 " marine drinking water cabin coating general technical specifications " appendix A, and result is as following table 1.
Table 1 is according to GB5369-2008 " marine drinking water cabin coating general technical specifications " appendix A test result
。
Visible, potable water tank paint of the present invention meets the requirement of national drinking water related product hygienic standard, and sticking power is high, and wear resistance, water-tolerant, more than reaching 800h by salt-fog test.
Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.After having read the content of the present invention's instruction, those skilled in the art can do various conversion or amendment to the present invention with any same or similar means, within these equivalent form of values fall into protection scope of the present invention equally.
Claims (8)
1. a potable water tank paint, is characterized in that: mixed by first component and second component, wherein by weight, consisting of of first component: epoxy resin 35-42 part, superfine white carbon black 2-3 part, process white 6-15 part, zinc sulfide white 10-15 part, anatase thpe white powder 20-25 part, dimethylbenzene 5-8 part, isopropylcarbinol 3-5 part, DBE high boiling solvent 3-6 part, defoamer 0.1-0.5 part, wetting dispersing agent 0.5-0.8 part, anti-settling agent 1-2 part, adhesion promoter 1-3 part, flow agent 0.3-0.5 part; Consisting of of second component: polymeric amide 70-80 part, dimethylbenzene 20-30 part.
2. potable water tank paint according to claim 1, is characterized in that: first component and second component are mixed and used with the weight ratio of 3-4:1.
3. potable water tank paint according to claim 1, is characterized in that: the reactive hydrogen equivalent of described polymeric amide is 250-270, and amine value is 170-200mg.KOH/g.
4. potable water tank paint according to claim 1, is characterized in that: described superfine white carbon black is hydrophobicity aerosil.
5. potable water tank paint according to claim 1, is characterized in that: described epoxy resin is bisphenol A type epoxy resin.
6. potable water tank paint according to claim 5, is characterized in that: the oxirane value ep/100g of described bisphenol A type epoxy resin is 0.18-0.22, and softening temperature is 64-76 DEG C.
7. potable water tank paint according to claim 1, is characterized in that: described adhesion promoter is γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane.
8. a method of preparing potable water tank paint claimed in claim 1, is characterized in that: mixed by previously prepared good first component and second component, the preparation of described first component and second component comprises the following steps respectively:
A. first component:
(1), to the dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, anti-settling agent, adhesion promoter, defoamer and the flow agent that add successively epoxy resin, total consumption 75-85% in Scattered Kettle, under 1000-1200 rev/min of speed conditions, disperse 20-30min to fully dissolving;
(2) in the mixture of step (1), add zinc sulfide white, anatase thpe white powder, process white, under the speed conditions of 1000-1200 rev/min, disperse after 20-30min, be ground to fineness≤30 μ m;
(3) prepare superfine white carbon black cream: add successively residue dimethylbenzene and isopropylcarbinol and DBE high boiling solvent, wetting dispersing agent, superfine white carbon black, under 1000-1200 rev/min of speed conditions, disperse 20-30min;
(4) to the superfine white carbon black cream that adds step (3) to make in the mixture of step (2), high speed dispersion 30-40min under 800-1000 rev/min of speed conditions;
B. second component:
In Scattered Kettle, add successively polymeric amide, dimethylbenzene to be uniformly mixed, stirring velocity is 100-200 rev/min, and churning time is 15-20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410215808.1A CN103992725A (en) | 2014-05-21 | 2014-05-21 | Drinking water tank paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215808.1A CN103992725A (en) | 2014-05-21 | 2014-05-21 | Drinking water tank paint and preparation method thereof |
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Cited By (7)
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| WO2016159882A1 (en) * | 2015-03-30 | 2016-10-06 | Agency For Science, Technology And Research | Near infrared reflective coating composition, coating and methods of forming the same |
| CN109082198A (en) * | 2018-07-03 | 2018-12-25 | 成都普瑞斯特新材料有限公司 | The solvent-free environmentally friendly anticorrosive paint of marine building steel construction |
| CN110511646A (en) * | 2019-07-23 | 2019-11-29 | 北京易净星科技有限公司 | Self-cleaning corrosion-inhibiting coating and the method for preparing self-cleaning corrosion-inhibiting coating |
| CN110550892A (en) * | 2018-05-31 | 2019-12-10 | 广东清大同科环保技术有限公司 | Self-cleaning type nickel iron slag environment-friendly artificial stone |
| CN112210269A (en) * | 2019-07-09 | 2021-01-12 | 常州市大使涂料有限公司 | Nontoxic antibacterial coating for drinking water tank |
| CN112457747A (en) * | 2020-11-05 | 2021-03-09 | 无锡福斯特涂料有限公司 | Epoxy drinking water coating and preparation method thereof |
| CN116218327A (en) * | 2023-03-21 | 2023-06-06 | 双塔涂料科技有限公司 | Wear-resistant texture paint for passenger car cabin |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016159882A1 (en) * | 2015-03-30 | 2016-10-06 | Agency For Science, Technology And Research | Near infrared reflective coating composition, coating and methods of forming the same |
| US11059979B2 (en) | 2015-03-30 | 2021-07-13 | Agency For Science, Technology And Research | Near infrared reflective coating composition, coating and methods of forming the same |
| CN110550892A (en) * | 2018-05-31 | 2019-12-10 | 广东清大同科环保技术有限公司 | Self-cleaning type nickel iron slag environment-friendly artificial stone |
| CN109082198A (en) * | 2018-07-03 | 2018-12-25 | 成都普瑞斯特新材料有限公司 | The solvent-free environmentally friendly anticorrosive paint of marine building steel construction |
| CN112210269A (en) * | 2019-07-09 | 2021-01-12 | 常州市大使涂料有限公司 | Nontoxic antibacterial coating for drinking water tank |
| CN110511646A (en) * | 2019-07-23 | 2019-11-29 | 北京易净星科技有限公司 | Self-cleaning corrosion-inhibiting coating and the method for preparing self-cleaning corrosion-inhibiting coating |
| CN112457747A (en) * | 2020-11-05 | 2021-03-09 | 无锡福斯特涂料有限公司 | Epoxy drinking water coating and preparation method thereof |
| CN116218327A (en) * | 2023-03-21 | 2023-06-06 | 双塔涂料科技有限公司 | Wear-resistant texture paint for passenger car cabin |
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Address after: 519040 Guangdong city of Zhuhai province Jinwan District Sanzao Town Gate Road No. 16 Applicant after: ZHUHAI WINNER ANTICORROSION TECHNOLOGY CO., LTD. Address before: 519040 Guangdong city of Zhuhai province Jinwan District Sanzao Town Gate Road No. 16 Applicant before: The anticorrosion Science and Technology Ltd. of prestige flag of Zhuhai City |
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Application publication date: 20140820 |