CN101921501B - Nano coating additive and coating composition containing same - Google Patents

Nano coating additive and coating composition containing same Download PDF

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Publication number
CN101921501B
CN101921501B CN2010102485761A CN201010248576A CN101921501B CN 101921501 B CN101921501 B CN 101921501B CN 2010102485761 A CN2010102485761 A CN 2010102485761A CN 201010248576 A CN201010248576 A CN 201010248576A CN 101921501 B CN101921501 B CN 101921501B
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Prior art keywords
nano
coating
paint additive
additive
borax
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CN101921501A (en
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杨少武
陈春连
刘纪元
黄雷
艾小芳
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Suzhou shengguangtai International Trade Co.,Ltd.
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JIANGSU ELEPHANT EAST ASIA PAINT MANUFACTURING Co Ltd
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Abstract

The invention discloses a nano coating additive and a coating composite containing the same. The additive comprises a granular or powdery nano material and borax, wherein the content of the nano material is 95%-99% by weight and the content of the borax is 1%-5% by weight. The nano coating additive is prepared by the following steps of: putting the borax in water at 75-95 DEG C, which the addition of the borax is according to the formula of the nano coating additive; preserving the temperature and stirring for more than 20 min; adding the nano material and continuously preserving the temperature and stirring for more than 40 min to obtain suspension; stopping stirring, and finally drying the suspension at 110-130 DEG C. The nano coating additive hardly has secondary agglomeration and has the advantages of relatively lower consumption in coatings, and obvious nano coating production cost reduction compared with the traditional nano coating. In addition, the coating composite containing the nano coating additive has the advantages of good decoration effect and lower production cost.

Description

A kind of nano coating additive and contain the coating composition of this nano coating additive
Technical field
The present invention relates to a kind of paint additive and contain the coating composition of this additive.
Background technology
At present, coating has related to every field, and is closely bound up with people's life.Coating is meant and is coated on body surface, can form one type of mould material of protection, decoration and other specific functions, and it mainly comprises film forming base-material, pigment, filler, solvent, auxiliary agent.Can coating be divided into water-borne coatings and organic solvent type coating according to solvent, can coating be divided into organic coating and inorganic paint according to the film forming base-material.
Nano paint is to study one type of relatively more active specific functionality coating in recent years; It is meant the coating that is added with the nano material that can give the coating specific function in the prescription; For example in coating, be added with nano material nano titanium oxide for example, can make coating produce novel antibacterial and mouldproof effect with photo-catalysis function.This is (OH), to form hydrogen bond between numerous hydroxyls owing to have highly active hydroxyl with the nano-grain surface headed by the Nano titanium dioxide.Under the irradiation of UV-light, hydrogen bond jumps, dialysis, meet again again, produces free electron (negative ion), causes the nano-grain surface electric hole to occur.Negative ion can degradation of organic substances small molecules, the protein of organic microbial (like bacterium) duplicated to have destroys and restraining effect.Coating is as important finishing material in aspect such as industry, house ornamentations, healthy closely bound up with people, so; Nano material is applied in the coating; Improving the antibacterial and antimildew function of coating, is one of focus of current coating circle research, also has a lot of patented technologies to come out in recent years.Yet nano material causes the use particle to increase because secondary agglomeration very easily appears in the high reactivity of self, and effect reduces.In order to improve effect, can only solve by increasing usage quantity, cause nano paint cost, selling price to remain high; Influenced and promoted and use; Also because the existence of macrobead nano material, influenced decorative effects such as the levelling of filming, exquisiteness, reduced antibiotic, fungicidal properties.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, and a kind of improved nano coating additive is provided, and its good stability in coating is not prone to secondary agglomeration.
The present invention also will provide a kind of coating composition, its good decorating effect, and production cost is low.
For solving above technical problem, a kind of technical scheme that the present invention takes is: a kind of nano coating additive, and it comprises the nano material and the borax of particle or powder type; Wherein, the content of nano material is 95%～99% (weight), and the content of borax is 1%～5% (weight); This nano coating additive prepares through following method: the borax of formula ratio is placed 75 ℃～95 ℃ water; Insulated and stirred added nano material more than 20 minutes, continued insulated and stirred and obtained suspension-s more than 40 minutes; Stop to stir, suspension-s is placed to be dried under 110 ℃～130 ℃ of the temperature promptly get.
According to a concrete aspect of the present invention, the preparation process of said paint additive is: water is joined in the reactor drum, start stirring; Add borax, be warming up to 80 ℃～90 ℃, insulated and stirred 25～40 minutes; Add nano material, continue insulated and stirred and obtained suspension-s in 50～70 minutes, reduce to room temperature; Stop to stir, under 110 ℃～120 ℃, be dried to dried.
In the nano material additive according to the invention, nano material includes but not limited to nano titanium oxide, nano silicon, nano aluminium oxide, nano zine oxide, nanometer silver.Yet, when the purposes of adding nano material is that the above-mentioned nano material of enumerating is preferred when being used for antibiotic, mildew-resistant.
In the preparation process of above-mentioned coating additive, the preferred deionized water of used water.The consumption of water is generally nano material and borax gross weight 4～20 times.
The another technical scheme that the present invention takes is: a kind of coating composition is a benchmark with its gross weight, is grouped into by following one-tenth: film forming base-material 20～45%; Pigment 0～20%; Filler 0～30%, solvent 5～45%, paint additive 0.01～2%, auxiliary agent 0.01～10%; Wherein, auxiliary agent is to be selected from dispersion agent, flow agent, wetting agent, skimmer, sterilant, pH regulator agent, matting agent and the thickening material one or more.
According to coating composition of the present invention; Said film forming base-material can be one or more the combination in aqueous acrylic emulsion, water-borne acrylic resin, solvent-borne type Synolac, urethane resin, vibrin and the nitro-resin, and those skilled in the art can select according to the concrete Application Areas and the needs of coating.
A concrete aspect according to coating composition; Coating composition is as interior wall coating, and a representational prescription is following: aqueous acrylic emulsion 20%～25%, white titanium pigment 12%～17%, talcum powder 8%～12%, dicalcium powder 13%～16%, deionized water 30%～40%, paint additive 0.2%～0.6%, auxiliary agent 2%～3%.In a more particular embodiment, the composition of coating composition is: aqueous acrylic emulsion 20%, white titanium pigment 15%, talcum powder 10%, dicalcium powder 15%, deionized water 36.7%, nano coating additive: auxiliary agent 2.8% (being weight percentage) 0.5%.
Those skilled in the art should understand, and paint additive according to the invention can make an addition to but be not limited to coating such as water-based coating for internal and external wall, decorations polyester lacquer, nitrocellulose woodenware articles made of bamboo lacquer.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, nano coating additive of the present invention is to utilize the water-soluble of borax and molecule bonding force; Nano grain surface is coated processing; Make nano material be in steady state; Be difficult for because of secondary agglomeration occurring particle increase, effect being reduced, the usage quantity in coating is relatively low, and production cost significantly reduces than traditional nano paint.
2, under the prerequisite that reaches the identical functions effect, nano coating additive lacks than the addition of traditional nanometer additive in the coating composition of the present invention, thereby cost is lower; Simultaneously since nano coating additive can be in system stable dispersion, be difficult for reuniting, therefore, the exquisiteness of filming of coating, level and smooth is at utmost brought into play the decorative effect of coating.
Embodiment
Below in conjunction with concrete embodiment the present invention is done further detailed explanation, but the invention is not restricted to these embodiment.
Embodiment 1
Nano coating additive according to present embodiment prepares through following steps: 300 kilograms of deionized waters are joined in the reactor drum, start stirring, add 0.5 kilogram of borax; Be warming up to about 85 ℃, insulated and stirred added 25 kilograms of nano titanium oxides about 30 minutes; Continue insulated and stirred and obtain suspension-s about 60 minutes; Reduce to room temperature, stop to stir, under 110～120 ℃, be dried to and promptly get.
Consisting of of this routine nano coating additive: nano titanium oxide 98.04%, borax 1.96%.
Embodiment 2
Nano coating additive according to present embodiment prepares through following steps: 300 kilograms of deionized waters are joined in the reactor drum, start stirring, add 0.8 kilogram of borax; Be warming up to about 85 ℃, insulated and stirred added 10 kilograms of nano titanium oxides, 10 kilograms of nano zine oxides, 5 kilograms of nanometer silvers about 30 minutes; Continue insulated and stirred and obtain suspension-s about 60 minutes; Reduce to room temperature, stop to stir, under 110～120 ℃, be dried to and promptly get.
Consisting of of this routine nano coating additive: nano titanium oxide 38.76%, nano zine oxide 38.76%, nanometer silver 19.38%, borax 3.1%.
Embodiment 3
A kind of nano paint compsn; It is as the interior wall nano-latex; By weight, composition of raw materials is following: the nano coating additive 0.5% of aqueous acrylic emulsion 20%, white titanium pigment 15%, talcum powder 10%, dicalcium powder 15%, deionized water 36.7%, embodiment 1, dispersion agent 0.45%, wetting agent 0.1%, skimmer 0.45%, sterilant 0.1%, Natvosol 0.25%, pH regulator agent 0.45%, alkali dissolve type thickening material 1%.
The nano paint preparation of compositions adopts conventional technology of preparing, and is specific as follows: at first, water is added in the dispersion cylinder, low speed (200r/min) stirs, and adds dispersion agent, wetting agent, skimmer, sterilant, Natvosol slowly, stirs 15 minutes; Add white titanium pigment, talcum powder, dicalcium powder, nano coating additive then, (800r/min) disperseed 30 minutes at a high speed, cross sand mill and grind 2 to 3 times, to fineness be qualified less than 50 microns; At last, under middling speed (500r/min) agitation condition, add aqueous acrylic emulsion, pH regulator agent, the molten type thickening material of alkali slowly, continue stirring and promptly got in 30 minutes.
The main performance index of present embodiment nano paint compsn is following:
Paint film appearance: smooth smooth;
Surface drying time: 2h;
Do solid work the time: 4h;
Contrast ratio 0.92;
Intestinal bacteria killing rate 95%;
Formaldehyde rate of decomposition (7d) 85%.
Embodiment 4
A kind of nano paint compsn; By weight, it is made up of following component: the nanometer additive 0.8% of vibrin 70.00%, YLENE 14.75%, N-BUTYL ACETATE 10.00%, mute powder 3.00%, wax slurry 1.00%, flow agent 0.30%, skimmer 0.15%, embodiment 2.
Above-mentioned nano paint preparation of compositions adopts routine techniques, is specially: vibrin is added to disperses in the cylinder, stirring at low speed adds nano coating additive, mute powder, wax slurry, flow agent, skimmer, high speed dispersion 30 minutes slowly.Middling speed stirs, and adds YLENE, N-BUTYL ACETATE, continues to stir 20 minutes.Be packaged into 5 kilograms/barrel.
Gained nano paint compsn can constitute the mute light wood lacquer of polyester with the polyurethane curing agent of 2.5 kilograms of/barrel independent packagings.Polyurethane curing agent is defined as the A component; The nano paint compsn is defined as the B component.First, component B is by with barrelage vanning, during construction, and first by weight: second=stir at 1: 2, leave standstill and cross 200 order filter clothes, spraying application after 20 minutes.
The main performance index of the mute light wood lacquer of present embodiment polyester is following:
Paint film appearance: smooth smooth;
Surface drying time: 0.5h;
Do solid work the time: 4h;
Hardness H;
Intestinal bacteria killing rate 98%;
Formaldehyde rate of decomposition (7d) 75%.
Embodiment 5
A kind of nano paint compsn; By weight, it is made up of following component: the nano coating additive 1.00% of vibrin 50.00%, talcum powder 20.00%, YLENE 8.00%, N-BUTYL ACETATE 4.00%, 30% nitro-cotton liquid 15.00%, Zinic stearas 2.00%, embodiment 1.Wherein, 30% nitro-cotton liquid is that 0.5 second nitro-cotton is dissolved in 7 parts of vinyl acetic monomers for 3 parts and obtains.
Above-mentioned nano paint preparation of compositions adopts routine techniques, is specially: at first 0.5 second nitro-cotton is dissolved in for 3 parts and makes 30% nitro-cotton liquid in 7 parts of vinyl acetic monomers, and subsequent use.Vibrin is joined in the dispersion cylinder, and stirring at low speed adds nitro-cotton liquid, talcum powder, nanometer additive, Zinic stearas slowly, high speed dispersion 30 minutes.Middling speed stirs again, adds YLENE, N-BUTYL ACETATE slowly, continues to stir 20 minutes, is packaged into 5 kilograms/barrel.
Gained nano paint compsn can constitute polyester nitrocellulose woodenware priming paint with the polyurethane curing agent of 5 kilograms of/barrel independent packagings.Polyurethane curing agent is defined as the A component; The nano paint compsn is defined as the B component.
With first, component B by with barrelage vanning, first by weight during construction: second=stir at 1: 1, leave standstill and cross 200 order filter clothes, spraying application after 20 minutes.
The main performance index of present embodiment polyester nitrocellulose woodenware priming paint is following:
Paint film appearance: smooth;
Surface drying time: 0.5h;
Do solid work the time: 4h;
Hardness HB;
Intestinal bacteria killing rate 92%;
Formaldehyde rate of decomposition (7d) 90%.
More than the described various auxiliary agent names of each embodiment be called the coating industry common name, can adopt like domestic and international respective name product such as ROHM AND HAAS, Henkel, Jiangsu sunrise.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (7)

1. paint additive comprises it is characterized in that the nano material of particle or powder type: said nano material is one or more the combination in nano titanium oxide, nano silicon, nano aluminium oxide, nano zine oxide and the nanometer silver; Said paint additive also comprises borax; In the said paint additive, the content of said nano material is 95%～99% (weight), and the content of borax is 1%～5% (weight); Said paint additive prepares through following method: the borax of formula ratio is placed 75 ℃ 95 ℃ water; Insulated and stirred added said nano material more than 20 minutes, continued insulated and stirred and obtained suspension-s more than 40 minutes; Stop to stir, suspension-s is placed to be dried under 110 ℃-130 ℃ of the temperature promptly get said paint additive.
2. paint additive according to claim 1 is characterized in that: the concrete preparation process of said paint additive is following: water is joined in the reactor drum, start stirring; Add borax, be warming up to 80 ℃～90 ℃, insulated and stirred 25～40 minutes; Add nano material, continue insulated and stirred and obtained suspension-s in 50～70 minutes, reduce to room temperature; Stop to stir, under 110 ℃ 120 ℃, be dried to dried.
3. paint additive according to claim 1 is characterized in that: said water is deionized water.
4. paint additive according to claim 1 is characterized in that: the consumption of said water is said nano material and borax gross weight 4～20 times.
5. coating composition; It is characterized in that: the gross weight with said coating composition is a benchmark, and it is made up of following component: film forming base-material 20%～45%, pigment 0%～20%; Filler 0%～30%, solvent 5%～45%; Each described paint additive 0.01%～2% in the claim 1 to 4, auxiliary agent 0.01～10%, said auxiliary agent are to be selected from dispersion agent, flow agent, wetting agent, skimmer, sterilant, pH regulator agent, matting agent and the thickening material one or more.
6. coating composition according to claim 5 is characterized in that: said film forming base-material is one or more the combination in aqueous acrylic emulsion, water-borne acrylic resin, solvent-borne type Synolac, urethane resin, vibrin and the nitro-resin.
7. coating composition according to claim 5; It is characterized in that: said coating composition is as interior wall coating, and it is formed as follows: aqueous acrylic emulsion 20%～25%, white titanium pigment 12%～17%, talcum powder 8%～12%, dicalcium powder 13%～16%, deionized water 30%～40%, paint additive 0.2%～0.6%, auxiliary agent 2%～3%.
CN2010102485761A 2010-08-09 2010-08-09 Nano coating additive and coating composition containing same Active CN101921501B (en)

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CN102241941B (en) * 2011-06-27 2013-10-09 广东巴德士化工有限公司 Water-soluble polyurethane-based quick-drying base coat with ultrahigh solid content
CN102911593B (en) * 2012-11-09 2014-11-26 徐州市水性漆厂 Aqueous multipurpose high-performance functional coating material and preparation method thereof
CN103232795B (en) * 2013-05-24 2015-12-09 杨雪飞 A kind of composite function nano coating of heat-resistant, wear-resistant
CN103382334B (en) * 2013-07-08 2015-06-17 吴江华诚复合材料科技有限公司 Alkyd modified acrylic acid emulsion paint with high weatherability
CN103382335A (en) * 2013-07-08 2013-11-06 吴江市物华五金制品有限公司 Air-drying acrylic acid anticorrosive paint
CN103864349B (en) * 2014-03-18 2016-09-14 王向阳 A kind of Multifunctional ecotype interior wall coating material and preparation method thereof
CN104403455A (en) * 2014-11-28 2015-03-11 安徽省金盾涂料有限责任公司 Safe, environment-friendly, heat-resisting and antibacterial water-based paint
CN106957560A (en) * 2017-04-28 2017-07-18 明光市飞洲新材料有限公司 A kind of coating additive using attapulgite as carrier and preparation method thereof
CN107090216A (en) * 2017-06-13 2017-08-25 合肥大麦灯箱器材有限公司 A kind of interior wall coating for purifying air and preparation method thereof
CN107189574A (en) * 2017-06-20 2017-09-22 合肥市淑芹美装饰工程有限公司 A kind of emulsion paint with antibacterial functions and preparation method thereof
CN107674488A (en) * 2017-10-02 2018-02-09 镇江中焱数控设备有限公司 A kind of new age-inhibiting addition for Digit Control Machine Tool coating
CN107841224A (en) * 2017-11-30 2018-03-27 明光市裕阳新材料有限公司 A kind of antibiotic emulsion paint and preparation method thereof
CN111607269A (en) * 2020-06-08 2020-09-01 陕西蓝晟新材料研发有限公司 Indoor antibacterial powder coating not prone to discoloring, modified antibacterial agent and preparation method

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Patent Citations (1)

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CN101268028A (en) * 2005-08-10 2008-09-17 建筑研究和科技有限公司 Additive with applications in construction chemistry

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