CN102351464B - Nanometer calcium carbonate paint and production process - Google Patents
Nanometer calcium carbonate paint and production process Download PDFInfo
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- CN102351464B CN102351464B CN 201110190039 CN201110190039A CN102351464B CN 102351464 B CN102351464 B CN 102351464B CN 201110190039 CN201110190039 CN 201110190039 CN 201110190039 A CN201110190039 A CN 201110190039A CN 102351464 B CN102351464 B CN 102351464B
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Abstract
The invention discloses nanometer calcium carbonate paint and a production process. The nanometer calcium carbonate paint consists of soft water, wetting agents, dispersing agents, anti-corrosion agents, anti-freezing agents, PH value regulating agents, film forming agents, defoaming agents, nanometer calcium carbonate, fine triple superphosphate, triple superphosphate, talc powder, kaolin, cellulose, emulsion, flatting agents and thickening agents. The production process of the nanometer calcium carbonate paint comprises the following steps of: (1) prefabricating nanometer calcium carbonate pulp; (2) preparing water solution of auxiliary agents; (3) taking and using the prefabricated nanometer calcium carbonate pulp according to the solid content and preparing pulp; (4) pumping ground pulp into a thinning tank by a pump; and (5) putting the cellulose into the step (4) to obtain finished products. The nanometer calcium carbonate paint and the production process have the beneficial effects that: 1, the performance of the paint is improved; 2, the shielding effect is improved; 3, the protection capability is enhanced; 4, the anti-bacterium and deodorization effects are enhanced; and5, the product cost is reduced.
Description
Technical field
The present invention relates to a kind of coating and production technique, particularly nano-calcium carbonate calcium paint and production technique.
Background technology
In recent years along with the rise of nanotechnology, being applied in the coating nano-calcium carbonate in the hope of improving coating property is one of hot issue of paying close attention to of coating circle.Have only now Britain, Japanese a few countries a large amount of use nano-calcium carbonate in coating in the world, and quite strict to technology control.Domestic also not have which producer be that main raw material(s) is produced coating with the nano-calcium carbonate, also still is in the laboratory study stage and uses in coating at nano-calcium carbonate.
21 century, nano-calcium carbonate grew a lot in the production of China.Especially building up of the nano-calcium carbonate production line of numerous domestic ton presses for especially to seek in a series of fields that comprise coating and uses.The nano-calcium carbonate calcium paint is owing to exist many active sites in film forming base-material, color stuffing and the auxiliary agent equimolecular, these active sites can and the active site of nanoparticle surface between strong interaction takes place, thereby form densification and stable coating significantly improves the physical and chemical performance of filming.Nano-calcium carbonate is the soft filler of a kind of nontoxic, non-stimulated, scentless white, and in coatings industry, it is easy to and all kinds of polymer-compatible, and Heat stability is good is one of the most frequently used raw material, plays skeleton function in film forming matter.Nano-calcium carbonate is that crystal particle diameter is nano level polycrystalline material, have two key characters of small size and high density crystal boundary, usually the continuous of macrocrystal can split near MO energy level by band, produced undersized quantum tunneling effect, because its high density crystal boundary and interface atom discontinuity equalization increase have produced interfacial effect, these two kinds of effects cause material to be undergone mutation in mechanical property, magnetic property, optical property, electrical property and thermodynamic characteristics simultaneously.
Yet nano-calcium carbonate directly applies in the coating, has following defective: the particle surface energy height, be in the thermodynamic instability state, and very easily reunite; Calcium carbonate surface hydrophilic oleophobic, polarity is very high, is difficult to disperse in organic medium, and is poor with the bonding force of base-material, easily forms boundary defect, causes film performance to descend.
At these problems, select the nano-calcium carbonate of cubes crystal formation on the material, with dispersion agent pre-treatment nano-calcium carbonate, join in the coating material production with the paste state, with after other powders and auxiliary agent fully mix, cross sand mill and grind, it is fully disperseed and maintaining condition.The water-borne coatings that this method of process is produced is not reunited after storing 2 years, opens jar effect and workability and does not change.In addition after tested, with the addition variation of nano-calcium carbonate, the abrasion resistance of coating increases substantially, and when addition reached 30%, the washability number of times can be above 10000 times.
At present, producing the used important raw and processed materials of coating is titanium dioxide, and it also is the important factor that influences coating quality and cost.The resource of titanium dioxide is few, and cost is higher.Can under the condition that does not reduce coating property, reduce the consumption of titanium dioxide behind the interpolation nano-calcium carbonate significantly, can also complete instead of titanium white powder in the coating of some kinds.The market value of nano-calcium carbonate is 3000-5000 Yuan ∕ ton, and widely distributed at home, and reserves are abundant.And titanium dioxide (rutile-type) price that production coating is used is at 20000-40000 Yuan ∕ ton.
Summary of the invention
The objective of the invention is for nano-calcium carbonate unworkable problem and a kind of nano-calcium carbonate calcium paint and production technique of providing in existing coatings industry production are provided.
Nano-calcium carbonate calcium paint of the present invention is by soft water, wetting agent, dispersion agent, sanitas, frostproofer, the pH value conditioning agent, film coalescence aid, defoamer, nano-calcium carbonate, meticulous coarse whiting, coarse whiting, talcum powder, kaolin, Mierocrystalline cellulose, emulsion, flow agent and thickening material are formed, wherein soft water will reach the standard of tap water, wetting agent is CA-100 nonionic surface active agent or the general wetting agent of KX-PE100, dispersion agent is the polycarboxylate sodium, sanitas is nitrogenous organic ring compound, frostproofer is propylene glycol, the pH value conditioning agent is ammoniacal liquor or alkaline conditioner, film coalescence aid is alcohol ester 12, defoamer is the silicon-dioxide defoamer, meticulous coarse whiting is D95-D97, coarse whiting is the coarse whiting about 400 orders, Mierocrystalline cellulose is Natvosol, emulsion is the water soluble resin emulsion, flow agent is the agent of polyurethane-modified polyethers thickening leveling, and thickening material is acrylic acid or the like alkali-thickening type thickening material.
The weight part of various materials is in the nano-calcium carbonate calcium paint of 10000 weight parts: soft water 2700-3500 part, 10 parts of wetting agents, dispersion agent 15-40 part, sanitas 15-30 part, frostproofer 60-90 part, pH value conditioning agent 10-30 part, film coalescence aid 60-100 part, defoamer 30-70, nano-calcium carbonate 1200-3500 part, meticulous coarse whiting 0-700 part, coarse whiting 0-1500 part, talcum powder 550-1100 part, kaolin 800-1250 part, Mierocrystalline cellulose 20-40 part, emulsion 1000-1800 part, flow agent 20-50 part and thickening material 60-90 part.
The production technique of nano-calcium carbonate calcium paint comprises the steps:
(1), prefabricated nano-calcium carbonate slurry, method for prefabricating is: get the dispersion agent of 1-2 part, be dissolved in 100 parts of water after, drop into 100-150 part nano-calcium carbonate again, making solid content is the prefabricated slurry of nano-calcium carbonate of 50-60%;
(2), drop into wetting agent, dispersion agent, sanitas, frostproofer, pH value conditioning agent, film coalescence aid, defoamer in the water successively, the consumption of water is: the water content of Total Water-prefabricated nano-calcium carbonate slurry, under 5-35 ℃ of temperature, in dispersion tank, carried out high speed dispersion 5-10 minute with the speed that per minute 1000-1800 changes with diameter 300 ㎜ dispersion impellers, make the aqueous solution of auxiliary agent;
(3), be that standard is taken the prefabricated slurry of nano-calcium carbonate by solid content, after in the adjuvant water solution that input step (2) is made, drop into meticulous coarse whiting, coarse whiting, talcum powder, kaolin more successively, dispersion impeller with diameter 300mm under 5-35 ℃ of temperature carried out high speed dispersion 20-40 minute with the speed that per minute 1000-2000 changes, and made slurries;
(4), squeeze into paint mixing tank with pump behind the slurries sand milling that step (3) is made;
(5), Mierocrystalline cellulose is dropped in the slurries that step (4) makes, after the speed that per minute 400--800 changes in paint mixing tank under the normal temperature is carried out stirring and dissolving, drop into the speed stirring and dissolving that per minute 400--800 changes in the emulsion, slowly add defoamer, flow agent, thickening material more successively, make finished product.
Beneficial effect of the present invention:
1, improve coating property: the wash-resistant property, gained paint coatings that significantly improves coating evenly, quick-drying, good in optical property, smooth surface exquisiteness, texture are good, thixotropy is strong, has regulatable rheological property;
2, improve shielding effect: can greatly reduce the free volume between the pigment and film forming matter in the coating, strengthen the bonding force of film forming matter and Nano filling, improve the mechanical strength of coating greatly, reduce capillary action, thus the screening ability of raising coating;
3, any enhanced protection ability: because its special surface effects, to UVA(long wave 320-340nm) and UVB(medium wave 280-320nm) the different effect of covering all arranged, can anti-atmosphere, ultraviolet ray encroaches on;
4, strengthen anti-mattress, deodorizing effect: because the macro quanta tunnel effect of nanoparticle under the available light irradiation, can activate airborne oxygen under certain humidity, have stronger chemically reactive;
5, reduce product cost: replace expensive titanium dioxide, break through traditional high-grade paint prescription, can reduce the consumption of other auxiliary agent simultaneously, reduced the production cost of coating, reduced pollution, reduced the consumption of the energy, can industrialization.
Embodiment
Embodiment one:
The nano-calcium carbonate calcium paint of preparation 1000kg, the consumption of various materials is: soft water 270kg, wetting agent 1kg, dispersion agent 1.5kg, sanitas 1.5kg, frostproofer 6kg, pH value conditioning agent 1kg, film coalescence aid 6kg, defoamer 3kg, nano-calcium carbonate 165kg, meticulous coarse whiting 70kg, coarse whiting 150kg, talcum powder 55kg, kaolin 80kg, Mierocrystalline cellulose 2kg, emulsion 180kg, flow agent 2kg and thickening material 6kg.
The technology of the nano-calcium carbonate calcium paint of preparation 1000kg comprises the steps:
(1), prefabricated nano-calcium carbonate slurry, method for prefabricating is: get the dispersion agent of 1.3kg, be dissolved in the soft water of 130kg after, drop into the nano-calcium carbonate of 165kg again, make solid content and be 56% the prefabricated slurry of nano-calcium carbonate;
(2), wetting agent 1kg, dispersion agent 0.2kg, sanitas 1.5kg, frostproofer 6kg, pH value conditioning agent 1kg, film coalescence aid 6kg, defoamer 2kg are dropped in the 140kg soft water successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out in dispersion tank high speed dispersion 5-10 minute with the speed that per minute 1000-1800 changes, and made the aqueous solution of auxiliary agent;
(3), the prefabricated slurry of nano-calcium carbonate that step (1) is made, after in the adjuvant water solution that input step (2) is made, drop into meticulous coarse whiting 70kg, coarse whiting 150kg, talcum powder 55kg, kaolin 80kg more successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out high speed dispersion 20-40 minute with the speed that per minute 1000-2000 changes, and made slurries;
(4), squeeze into paint mixing tank with pump behind the slurries sand milling that step (3) is made;
(5), in the slurries that 2kg Mierocrystalline cellulose input step (4) is made, after the speed that per minute 400--800 changes in paint mixing tank under the normal temperature is carried out stirring and dissolving, drop into the speed stirring and dissolving that per minute 400--800 changes in the 180kg emulsion, slowly add defoamer 1kg, flow agent 2kg and thickening material 6kg more successively, make finished product.
Embodiment two:
The nano-calcium carbonate calcium paint of preparation 1000kg, the consumption of various materials is: soft water 300kg, wetting agent 1kg, dispersion agent 3kg, sanitas 2kg, frostproofer 8kg, pH value conditioning agent 2kg, film coalescence aid 8kg, defoamer 6kg, nano-calcium carbonate 280kg, meticulous coarse whiting 20kg, coarse whiting 80kg, talcum powder 75kg, kaolin 90kg, Mierocrystalline cellulose 3kg, emulsion 110kg, flow agent 4kg and thickening material 8kg.
The technology of the nano-calcium carbonate calcium paint of preparation 1000kg comprises the steps:
(1), prefabricated nano-calcium carbonate slurry, method for prefabricating is: get the dispersion agent of 2kg, be dissolved in the soft water of 200kg after, drop into the nano-calcium carbonate of 280kg again, make solid content and be 58% the prefabricated slurry of nano-calcium carbonate;
(2), wetting agent 1kg, dispersion agent 1kg, sanitas 2kg, frostproofer 8kg, pH value conditioning agent 2kg, film coalescence aid 8kg, defoamer 4kg are dropped in the 100kg soft water successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out in dispersion tank high speed dispersion 5-10 minute with the speed that per minute 1000-1800 changes, and made the aqueous solution of auxiliary agent;
(3), the prefabricated slurry of nano-calcium carbonate that step (1) is made, after in the adjuvant water solution that input step (2) is made, drop into meticulous coarse whiting 20kg, coarse whiting 80kg, talcum powder 75kg, kaolin 90kg more successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out high speed dispersion 20-40 minute with the speed that per minute 1000-2000 changes, and made slurries;
(4), squeeze into paint mixing tank with pump behind the slurries sand milling that step (3) is made;
(5), in the slurries that 3kg Mierocrystalline cellulose input step (4) is made, after the speed that per minute 400--800 changes in paint mixing tank under the normal temperature is carried out stirring and dissolving, drop into the speed stirring and dissolving that per minute 400--800 changes in the 110kg emulsion, slowly add defoamer 2kg, flow agent 4kg, thickening material 8kg more successively, make finished product.
Embodiment three:
The nano-calcium carbonate calcium paint of preparation 1000kg, the consumption of various materials is: soft water 350kg, wetting agent 1kg, dispersion agent 4kg, sanitas 3kg, frostproofer 9kg, pH value conditioning agent 3kg, film coalescence aid 10kg, defoamer 7kg, nano-calcium carbonate 350kg, talcum powder 55kg, kaolin 80kg, Mierocrystalline cellulose 4kg, emulsion 110kg, flow agent 5kg and thickening material 9kg.
The technology of the nano-calcium carbonate calcium paint of preparation 1000kg comprises the steps:
(1), prefabricated nano-calcium carbonate slurry, method for prefabricating is: get the dispersion agent of 3kg, be dissolved in the soft water of 300kg after, drop into the nano-calcium carbonate of 350kg again, make solid content and be 54% the prefabricated slurry of nano-calcium carbonate;
(2), wetting agent 1kg, dispersion agent 1kg, sanitas 3kg, frostproofer 9kg, pH value conditioning agent 3kg, film coalescence aid 10kg, defoamer 4kg are dropped in the 50kg soft water successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out in dispersion tank high speed dispersion 5-10 minute with the speed that per minute 1000-1800 changes, and made the aqueous solution of auxiliary agent;
(3), the prefabricated slurry of nano-calcium carbonate that step (1) is made, after in the adjuvant water solution that input step (2) is made, drop into talcum powder 55kg and kaolin 80kg more successively, dispersion impeller with diameter 300 ㎜ under 5-35 ℃ of temperature carried out high speed dispersion 20-40 minute with the speed that per minute 1000-2000 changes, and made slurries;
(4), squeeze into paint mixing tank with pump behind the slurries sand milling that step (3) is made;
(5), in the slurries that 4kg Mierocrystalline cellulose input step (4) is made, after the speed that per minute 400--800 changes in paint mixing tank under the normal temperature is carried out stirring and dissolving, drop into the speed stirring and dissolving that per minute 400--800 changes in the 110kg emulsion, slowly add defoamer 3kg, flow agent 5kg and thickening material 9kg more successively, make finished product.
Claims (2)
1. nano-calcium carbonate calcium paint, be by soft water, wetting agent, dispersion agent, sanitas, frostproofer, the pH value conditioning agent, film coalescence aid, defoamer, nano-calcium carbonate, meticulous coarse whiting, coarse whiting, talcum powder, kaolin, Mierocrystalline cellulose, emulsion, flow agent and thickening material are formed, and the weight part of various materials is in the nano-calcium carbonate calcium paint of 10000 weight parts: soft water 2700-3500 part, 10 parts of wetting agents, dispersion agent 15-40 part, sanitas 15-30 part, frostproofer 60-90 part, pH value conditioning agent 10-30 part, film coalescence aid 60-100 part, defoamer 30-70, nano-calcium carbonate 1200-3500 part, meticulous coarse whiting 0-700 part, coarse whiting 0-1500 part, talcum powder 550-1100 part, kaolin 800-1250 part, Mierocrystalline cellulose 20-40 part, emulsion 1000-1800 part, flow agent 20-50 part and thickening material 60-90 part.
2. according to the production technique of a kind of nano-calcium carbonate calcium paint described in the claim 1, it is characterized in that: described production technique comprises the steps:
(1), drop into wetting agent, dispersion agent, sanitas, frostproofer, pH value conditioning agent, film coalescence aid, defoamer in the water successively, the consumption of water is: the water content of Total Water-prefabricated nano-calcium carbonate slurry, dispersion impeller with diameter 30 ㎝ under 5-35 ℃ of temperature carried out in dispersion tank high speed dispersion 5-10 minute with the speed that per minute 1000-1800 changes, and made the aqueous solution of auxiliary agent;
(2), prefabricated nano-calcium carbonate slurry, method for prefabricating is: get the dispersion agent of 1-2 part, be dissolved in 100 parts of water after, drop into 100-150 part nano-calcium carbonate again, making solid content is the prefabricated slurry of nano-calcium carbonate of 50-60%;
(3), be that standard is taken the prefabricated slurry of nano-calcium carbonate by solid content, after in the adjuvant water solution that input step (1) is made, drop into meticulous coarse whiting, coarse whiting, talcum powder, kaolin more successively, dispersion impeller with diameter 30 ㎝ under 5-35 ℃ of temperature carried out high speed dispersion 20-40 minute with the speed that per minute 1000-2000 changes, and made slurries;
(4), squeeze into paint mixing tank with pump behind the slurries sand milling that step (3) is made;
(5), Mierocrystalline cellulose is dropped in the slurries that step (4) makes, after the speed that per minute 400--800 changes in paint mixing tank under the normal temperature is carried out stirring and dissolving, drop into the speed stirring and dissolving that per minute 400--800 changes in the emulsion, slowly add defoamer, flow agent, thickening material more successively, make finished product.
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CN102351464B true CN102351464B (en) | 2013-08-07 |
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CN103602164A (en) * | 2013-11-14 | 2014-02-26 | 安徽淮化股份有限公司 | Nano calcium carbonate composite coating |
CN103725110A (en) * | 2013-11-18 | 2014-04-16 | 安徽淮化股份有限公司 | Nano calcium carbonate composite coating for external walls of buildings |
CN105273460A (en) * | 2015-10-09 | 2016-01-27 | 浙江新迪在龙涂料科技有限公司 | Alcohol-resistant UV finishing coating and preparation method thereof |
CN107603353A (en) * | 2017-09-30 | 2018-01-19 | 广西华洋矿源材料有限公司 | A kind of latex paint containing high-quality superfine light calcium carbonate and preparation method thereof |
CN109988465A (en) * | 2019-04-19 | 2019-07-09 | 中原工学院 | A kind of nono calcium carbonate modified fluorine carbon Concrete Protective Agent and preparation method thereof |
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CN1393489A (en) * | 2001-06-21 | 2003-01-29 | 汪国学 | Water-proof decorative paint containing nano components |
CN1398931A (en) * | 2002-05-28 | 2003-02-26 | 北京化工大学 | Water-thinned latex paint containing nano calcium carbonate for cuter wall and its prepn process |
CN1521223A (en) * | 2003-02-14 | 2004-08-18 | 王崇高 | Multifunctional green environmental protection type nanometer paint |
CN101381532A (en) * | 2008-10-17 | 2009-03-11 | 徐州市三为水性漆科技有限公司 | Multiple self-assembling nano functional coating and preparation method thereof |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1393489A (en) * | 2001-06-21 | 2003-01-29 | 汪国学 | Water-proof decorative paint containing nano components |
CN1398931A (en) * | 2002-05-28 | 2003-02-26 | 北京化工大学 | Water-thinned latex paint containing nano calcium carbonate for cuter wall and its prepn process |
CN1521223A (en) * | 2003-02-14 | 2004-08-18 | 王崇高 | Multifunctional green environmental protection type nanometer paint |
CN101381532A (en) * | 2008-10-17 | 2009-03-11 | 徐州市三为水性漆科技有限公司 | Multiple self-assembling nano functional coating and preparation method thereof |
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