CN102477249A - Aqueous anti-doodling and anti-affixing paint and its preparation method - Google Patents
Aqueous anti-doodling and anti-affixing paint and its preparation method Download PDFInfo
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Abstract
The invention relates to an aqueous anti-doodling and anti-affixing paint. The paint provided by the invention comprises a component A and a component B, wherein the component A contains, by weight, 50-70 parts of an anionic polyacrylate dispersion and 5-10 parts of a modified silane emulsion; and the component B contains, by weight, 20-25 parts of a water dispersive aliphatic polyisocyanate curing agent. The invention also relates to a preparation method of an aqueous anti-doodling and anti-affixing paint film. With the use of the polyacrylate dispersion as a base material, the aqueous anti-doodling and anti-affixing paint can have a high gloss and its scratch resistance can be improved. With the use of the water dispersive aliphatic polyisocyanate as a cross-linking agent, the paint can have excellent weatherability and yellow-stain resistance. Dual-component crosslinking and solidification can endow the paint with high surface hardness, compact film and excellent anti-doodling performance.
Description
Technical field
The present invention relates to paint field, relate in particular to a kind of aqueous anti-graffiti adhesion resistant paint and preparation method thereof.
Background technology
In recent years, all kinds of small advertisements, the illegal ad scribbling, scratch, disorderly paste more and more receive people's attention, and scribble not only influences the appearance of the city and view, and the expense that various countries are used on the removing scribble is huge.These scribble advertisements are regarded as " city psoriasis " that influences the appearance of the city always, become the chronic disease that each city, the whole nation is difficult to effect a radical cure.
The method of scribbling usually, scratch, disorderly pasting and the material of use are varied, and some dips in marking pen and other instrument and gets paint, ink etc. and scribble on the communal facility surface, perhaps puts up by means of glue, paste, non-setting adhesive etc. etc.The surface that these small advertisements are very firm attached to buildings, public transport stop board, waiting booth, road direction board, lamp stand, billboard, bridge, call box, Telecom Facilities, postal facility, electric power facility or the like communal facility.At present, the method for removing illegal ad mainly contains like physics method (cutter shovel, polishing etc.) and chemical method, and these methods waste time and energy, and the suburb fruit is poor, but also it is surperficial to damage the communal facility that scribbles small advertisement, does not reach real cleaning, beautify the effect of city appearance environment.Therefore, how to prevent or remove these small advertisements, also neat, as the to clean city look and feel in city improve the people's life, Working environment, have the meaning that is even more important.
Summary of the invention
In view of this, be necessary the aqueous anti-graffiti adhesion resistant paint that provides a kind of weather resisteant, resistance to marring, water tolerance, resistance to chemical attack and Convenient scrubber to remove.
And, above-mentioned aqueous anti-graffiti adhesion resistant paint preparation method is provided.
A kind of aqueous anti-graffiti adhesion resistant paint, it comprises following A component and B component, the A component is counted by weight and is comprised following composition:
Anion pp acid esters dispersion-s 50～70
Water 5.0～8.0
Pigment 15～20
Functional stuffing 5～10
Modified organic silicon alkane emulsion 5～10
Aerosil 1.5～2.0
Auxiliary agent 0.1-6.0
The B component is counted by weight and is comprised:
Solidifying agent 20～25.
And, a kind of preparation method of aqueous anti-graffiti adhesion resistant paint, it comprises the steps:
A): in container, add anion pp acid dispersion-s and water successively, and stir;
B): add pigment, functional stuffing more gradually, the limit edged improves rotating speed, and continues to stir;
C): material adds anion pp acid esters dispersion-s, modified organic silicon alkane emulsion, aerosil after disperseing fully again, stirs behind the reduction rotating speed;
D): the limit adds the thickening material limit improves rotating speed, stirs, and filters then, forms the A component;
E): the A component that obtains is mixed with solidifying agent; Stir, slaking promptly obtained required coating after 5～10 minutes; Construct at the appointed time; Wherein, at step a), c), e) in stirring before add corresponding adjuvants respectively, wherein inventory adopts content as claimed in claim 1 in each step.
Through adopting such scheme, above-mentioned aqueous anti-graffiti adhesion resistant paint has following advantage:
1. because modified organic silicon oxygen alkane emulsion has the two thin property of hydrophobic and oil repellent, (like ink paint) is gone back butyrous (like paint) no matter scribble is water-based, all makes them be difficult to good being coated on the coating; And modified organic silicon oxygen alkane resin can increase the tissue adhesion performance of coating, makes tackiness agent be difficult for permeating easily and adhering on its surface;
2. because coating contains modified organic silicon oxygen alkane emulsion, it is had excellent water-resistance, in water, soak and do not whiten more than 48 hours, rainwater etc. flow down after forming the globule on the coating, little residual water mark;
3. because coating contains modified organic silicon oxygen alkane emulsion, have low surface tension, can make and remove scribble rapidly like a cork; And owing to be the polyurethane coating of two-pack crosslinking curing, so anti-chemical solvents ability is strong, wiping can not destroy the anti-doodling paint surface easily yet repeatedly;
4. coating adopts aerosil as multi-functional filler; It can give full play to the effect of multiple auxiliary agent: aerosil can also improve weather resisteant, the resistance to marring of coating; Improve the bonding strength between coating and the construction surface; Simultaneously, aerosil has extremely strong UVA, infrared light reflection characteristic, doses the ageing resistance that in coating, can improve coating; Wherein, weather resisteant is mainly reflected in, the long-time solar light irradiation nondiscoloration of coating, outdoorly is coated with also not yellowing in 1～2 year on the wall, nondiscoloration.
5. filming is the urethane of two-pack crosslinking curing, and contains inertia color stuffings such as titanium oxide, silicon-dioxide, so chemical-resistant resistance (acid, alkali, salt etc.) corrosive excellent property;
6. coating uses the performance of not destroying coating more than 1 year in-30 ℃～100 ℃ environment;
7. when on the rete that coating forms, scribbling oil pen, printing ink, when writing such as spraying paint certainly, can adopting auxiliary products to clean, the anti-paste performance of anti-scribble that wiping still can keep more than 80 times filming is not destroyed; And filming of forming is thin, and thickness can reach good antigraffiti properties at 15～35 microns.
8. coating is aqueous product, the easy cleaning of environment friendly and pollution-free, construction party.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The aqueous anti-graffiti adhesion resistant paint of the embodiment of the invention comprises following A component and B component, and the A component is counted by weight and comprised following composition:
Anion pp acid esters dispersion-s 50～70
Water 5.0～8.0
Pigment 15～20
Functional stuffing 5～10
Modified organic silicon alkane emulsion 5～10
Aerosil 1.5～2.0
Auxiliary agent 0.1-6.0
The B component is counted by weight and is comprised:
Solidifying agent 20～25.
Wherein, the weight proportion of A component and B component is 100: 20-25.
In the A component, anion pp acid esters dispersion-s has high anti-chemical, excellent anti-scratch and excellent weathering resistance function.Pigment is selected rutile titanium white for use, the rutile crystal compact structure, more stable, optical activity is little, thereby good weatherability has higher opacifying power, reducing power simultaneously.Because the chemical property of titanium oxide is very stable, be a kind of intermediate oxide of slant acidity again.React with other elements and compound hardly under the normal temperature, all inoperative to oxygen, ammonia, nitrogen, hydrogen sulfide, carbonic acid gas, sulfurous gas, water insoluble, fatty, also be insoluble to diluted acid and mineral acid, alkali, only be dissolved in hydrofluoric acid.White titanium pigment both as tinting material, has reinforcement, anti-aging, filling effect again in coating industry.In the whitewash goods, add the rutile titanium white powder, filming under sun exposure of formation, sun-resistant, do not ftracture, nondiscoloration and acid and alkali-resistance.Functional stuffing is selected attrition resistant stopping composition such as glass powder.
Modified organic silicon alkane emulsion is as one of main base-material of coating, and it has the two thin property of hydrophobic and oil repellent, gives the coating special performances, goes back butyrous (like paint) no matter scribble is a water-based (like ink), all makes them be difficult to be coated on the coating; And modified organic silicon oxygen alkane emulsion can increase the tissue adhesion performance of coating, makes tackiness agent be difficult for permeating easily and adhering on its surface.
According to the parts by weight meter, one or more in the following composition that auxiliary agent comprises:
Dispersion agent 0.3～0.5
Wetting agent 0.1～0.2
Skimmer 0.15～0.20
Mould inhibitor 0.15～0.3
Flow agent 0.6～1.0
Thickening material 0.3～0.5
Wax emulsion 3.0～5.0.
The above auxiliary agent of present embodiment all has employing, and wherein skimmer can use in preparation several times, to eliminate the foam that stirring waits the operation back to produce.
Wherein, dispersion agent is the special modified polyether that contains the pigment affinity groups; Wetting agent is non-ionic low-foaming surfactant; Skimmer is silicone based and the polyethers skimmer; Mould inhibitor is a daconil M; Flow agent is a polyethers; Thickening material is the association type polyurethanes; The wax emulsion is a polyethylene wax, has to increase sliding, scratch resistant effect.
Aerosil is multi-functional filler in coating, and it can give full play to the effect of various auxiliary agents, for example can bring into play levelling, anti-heavy, delustring, anti-attrition resistant effect; Aerosil can also improve weather resisteant, the resistance to marring of coating; Improve the bonding strength between coating and the construction surface; Simultaneously, aerosil has extremely strong UVA, infrared light reflection characteristic, doses the ageing resistance that in coating, can improve coating.
Said solidifying agent is the aqueous dispersion type aliphatic isocyanates, is used for the dispersion-s of hydroxyl functional group crosslinkedly, can improve the compactness of filming, hardness, resist chemical performance.Solidifying agent and anion pp acid esters dispersion-s are crosslinked in the present embodiment, form urethane, have higher surface hardness, fine and close filming and excellent antigraffiti properties.
Above-mentioned coating is applied widely; Be applicable to various materials such as metal, pottery, cement, plastics, glass, glass reinforced plastic, timber; For example can be used for underpass, tunnel, footbridge, bridge pier, steelwork, concrete structure wall, various device shell etc.; Good antigraffiti effect is not only arranged, can also well play prophylactic effect putting up small advertisement.As long as this coating is brushed equably behind surfaces such as metal, cement products, timber, glass, stone material, batter, 107 glue, non-setting adhesive etc. all can't cling, or these adhesive matter can easily take off with hand, or wind is dropped voluntarily in the short period of time.Permanent pen, oil pike, ink, ink spary can't adsorb basically, or can light clean with common rag.
The preparation method of above-mentioned aqueous anti-graffiti adhesion resistant paint comprises the steps:
A): in container, add anion pp acid dispersion-s and water successively, and stir;
B): add pigment, functional stuffing more gradually, the limit edged improves rotating speed, and continues to stir;
C): material adds anion pp acid esters dispersion-s, modified organic silicon alkane emulsion, aerosil after disperseing fully again, stirs behind the reduction rotating speed;
D): the limit adds the thickening material limit improves rotating speed, stirs, and filters then, forms the A component;
E): the A component that obtains is mixed with solidifying agent; Stir, slaking promptly obtained required coating after 5～10 minutes; Construct at the appointed time; Wherein, at step a), c), e) in stirring before add corresponding adjuvants respectively, wherein the proportional quantity of material is the content in the above-mentioned prescription in each step.
It at first is the formation step of A component; Specifically comprise: in container such as paint mixing tank or mixing tank, add anion pp acid dispersion-s, dispersion agent, wetting agent, skimmer, mould inhibitor and the water of predetermined proportional quantity successively, stirring 5～15min under 500rpm.Transfer to 1000～1500rpm at the step b) medium speed then, add rutile titanium white, functional stuffing gradually, the limit edged improves rotating speed, and adding finishes stirs 20～30min under 1500rpm changes.Add anion pp acid esters dispersion-s, modified organic silicon alkane emulsion, aerosil according to predetermined proportional quantity again, reduce rotating speed and transfer to 800～1000rpm, stir 10～15min; Then add skimmer, wax emulsion, continue to stir 5～10min.Be adjusted to 800～1000rpm at the step d) medium speed, add thickening material, flow agent, stir 10～20min, filter then, form the A component, predetermined proportional quantity.
With A component and B component (being solidifying agent) according to 100: the mixed of 20-25, stir, the slaking certain hour for example 5 minutes, promptly forms coating.This coating is water-borne coatings, can directly be used for construction, in construction timeliness 2h, coating is used up, and the timeliness of specifically constructing is decided according to actual demand, is not limited thereto.Concrete form of construction work can adopt roller coat and spraying application, according to condition of construction, also can add less water simultaneously in construction and regulate viscosity.
The coating specific examples of three kinds of proportionings below is provided.
Embodiment 1
The production of A component:
Get anion pp acid dispersion-s 30kg, dispersion agent 0.3kg, wetting agent 0.1kg, skimmer 0.2kg, mould inhibitor 0.2kg; Water 3.0kg, rutile titanium white 15kg, filler 10kg, high speed dispersion is sheared and is processed slurry; Add anionic acrylic dispersion-s 20kg then, modified polyorganosiloxane 10kg, aerosil 2.0kg, skimmer 0.3kg; Wax emulsion 5.0kg adds the viscosity that an amount of associative thickener, flow agent are adjusted to needs again, disperses 15 minutes, filters and packages to get final product.
A component in this instance: B component=100: 20, with A, B component mixing and stirring, slaking 5 minutes forms coating in this ratio, constructs then, in the construction timeliness, coating is used up.
Embodiment 2
Get anion pp acid dispersion-s 20kg, dispersion agent 0.3kg, wetting agent 0.1kg, skimmer 0.2kg, mould inhibitor 0.2kg; Water 5.0kg, rutile titanium white 15kg, filler 10kg, high speed dispersion is sheared and is processed slurry; Add anionic acrylic dispersion-s 40kg then, modified polyorganosiloxane 5kg, aerosil 2.0kg, skimmer 0.3kg; Wax emulsion 5.0kg adds the viscosity that an amount of associative thickener, flow agent are adjusted to needs again, disperses 15 minutes, filters and packages to get final product.
A component in this instance: B component=100: 25, with A, B component mixing and stirring, slaking 5 minutes forms coating in this ratio, constructs then, in the construction timeliness, coating is used up.
Embodiment 3
Get anion pp acid dispersion-s 70kg, dispersion agent 0.3kg, wetting agent 0.1kg, water 5.0kg; Skimmer 0.2kg, mould inhibitor 0.2kg, filler 5kg, aerosil 2.0kg; High speed dispersion is sheared and is processed slurry, adds modified polyorganosiloxane 10kg then, skimmer 0.3kg, wax emulsion 5.0kg; Add the viscosity that an amount of associative thickener, flow agent are adjusted to needs again, disperseed 15 minutes, filter and package and get final product.
A component in this instance: B component=100: 25, with A, B component mixing and stirring, slaking 5 minutes forms coating in this ratio, constructs then, in the construction timeliness, coating is used up.
Following table is performance tabulation behind the coating application in above-mentioned three kinds of instances, and embodiment 1-3 representes with 1#, 2# and 3# respectively.By under can find out that the NCO/OH ratio is higher in the coating of embodiment 2, surface drying time is slower, the 3 sticking power ranks of embodiment are higher, are 1 grade; The anti-adhibit quality of embodiment 2 is the strongest, and other performances are basic identical.
It can also be seen that by last table above-mentioned aqueous anti-graffiti adhesion resistant paint has the following advantages:
1. have excellent water-resistance, in water, soak and do not whiten more than 48 hours, it is no abnormal in water, to soak 96h, and rainwater etc. flow down after forming the globule on the coating, little residual water mark.It is as shown in the table, and it is no abnormal in water, to soak 96h.
2. weathering resistance is good, and long-time solar light irradiation nondiscoloration outdoorly is coated with also not yellowing in 1～2 year on the wall, nondiscoloration.It is as shown in the table, and artificial weathering 400h does not have and bubbles, peels off and obvious loss of gloss phenomenon.
3. chemical-resistant resistance (acid, alkali, salt etc.) corrosive excellent property.It is as shown in the table, acid resistance, and as in 2% sulphuric acid soln, coating 24h is no abnormal; Alkali resistance is as at saturated Ca (OH)
2In the solution, coating 84h is no abnormal; Resistance to salt water, as in 5%NaCl solution, coating 48h is no abnormal.
In addition, the coating of present embodiment also has the following advantages:
1. because modified organic silicon oxygen alkane emulsion has the two thin property of hydrophobic and oil repellent, (like ink paint) is gone back butyrous (like paint) no matter scribble is water-based, all makes them be difficult to good being coated on the coating; And modified organic silicon oxygen alkane emulsion can increase the tissue adhesion performance of coating, makes tackiness agent be difficult for permeating easily and adhering on its surface;
2. because coating contains modified organic silicon oxygen alkane emulsion, it is had excellent water-resistance, in water, soak and do not whiten more than 48 hours, rainwater etc. flow down after forming the globule on the coating, little residual water mark;
3. because coating contains modified organic silicon oxygen alkane emulsion, have low surface tension, can make and remove scribble rapidly like a cork; And owing to be the polyurethane coating of two-pack crosslinking curing, so anti-chemical solvents ability is strong, wiping can not destroy the anti-doodling paint surface easily yet repeatedly;
3. coating adopts aerosil as multi-functional filler, and it can give full play to the effect of multiple auxiliary agent; And aerosil can also improve weather resisteant, the resistance to marring of coating; Improve the bonding strength between coating and the construction surface; Simultaneously, aerosil has extremely strong UVA, infrared light reflection characteristic, doses the ageing resistance that in coating, can improve coating; Wherein, weather resisteant is mainly reflected in, the long-time solar light irradiation nondiscoloration of coating, outdoorly is coated with also not yellowing in 1～2 year on the wall, nondiscoloration.
4. filming is the urethane of two-pack crosslinking curing, and contains inertia color stuffings such as titanium oxide, silicon-dioxide, so chemical-resistant resistance (acid, alkali, salt etc.) corrosive excellent property;
5. coating uses the performance of not destroying coating more than 1 year in-30 ℃～100 ℃ environment;
6. when on the rete that coating forms, scribbling oil pen, printing ink, when writing such as spraying paint certainly, can adopting auxiliary products to clean, the anti-paste performance of anti-scribble that wiping still can keep more than 80 times filming is not destroyed; And filming of forming is thin, and thickness can reach good antigraffiti properties for 15～35 microns.
7. coating is aqueous product, the easy cleaning of environment friendly and pollution-free, construction party.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. aqueous anti-graffiti adhesion resistant paint, it comprises following A component and B component, the A component is counted by weight and is comprised following composition:
Anion pp acid esters dispersion-s 50～70
Water 5.0～8.0
Pigment 15～20
Functional stuffing 5～10
Modified organic silicon alkane emulsion 5～10
Aerosil 1.5～2.0
Auxiliary agent 0.1-6.0
The B component is counted by weight and is comprised:
Solidifying agent 20～25.
2. aqueous anti-graffiti adhesion resistant paint as claimed in claim 1 is characterized in that, the weight proportion of said A component and B component is 100: 20-25.
3. aqueous anti-graffiti adhesion resistant paint as claimed in claim 1 is characterized in that, said solidifying agent is the aqueous dispersion type aliphatic polymeric isocyanate.
4. aqueous anti-graffiti adhesion resistant paint as claimed in claim 1 is characterized in that, said auxiliary agent comprises in the following composition one or more according to the parts by weight meter:
Dispersion agent 0.3～0.5
Wetting agent 0.1～0.2
Skimmer 0.15～0.20
Mould inhibitor 0.15～0.3
Flow agent 0.6～1.0
Thickening material 0.3～0.5
Wax emulsion 3.0～5.0.
5. aqueous anti-graffiti adhesion resistant paint as claimed in claim 1 is characterized in that, said functional stuffing is a glass powder.
6. aqueous anti-graffiti adhesion resistant paint as claimed in claim 1 is characterized in that, said pigment is rutile titanium white.
7. the preparation method of an aqueous anti-graffiti adhesion resistant paint is characterized in that, comprises the steps:
A): in container, add anion pp acid dispersion-s and water successively, and stir;
B): add pigment, functional stuffing more gradually, the limit edged improves rotating speed, and continues to stir;
C): material adds anion pp acid esters dispersion-s, modified organic silicon alkane emulsion, aerosil after disperseing fully again, stirs behind the reduction rotating speed;
D): the limit adds the thickening material limit improves rotating speed, stirs, and filters then, forms the A component;
E): the A component that obtains is mixed with solidifying agent; Stir, slaking promptly obtained required coating after 5～10 minutes; Construct at the appointed time; Wherein, at step a), c), e) in stirring before add corresponding adjuvants respectively, wherein the material proportion amount adopts content as claimed in claim 1 in each step.
8. the preparation method of aqueous anti-graffiti adhesion resistant paint as claimed in claim 7; It is characterized in that; Stirring velocity in the said step a) is 500rpm, and churning time is 5～15min, and the auxiliary agent in the step a) comprises dispersion agent, wetting agent, skimmer and mould inhibitor.
9. the preparation method of aqueous anti-graffiti adhesion resistant paint as claimed in claim 7; It is characterized in that; Said step b) stirring velocity before going into pigment is adjusted into 1000～1500rpm; Lasting stirring velocity behind the interpolation functional stuffing is 1500rpm, and churning time is 20～30min under the 1500rpm rotating speed.
10. the preparation method of aqueous anti-graffiti adhesion resistant paint as claimed in claim 7; It is characterized in that; Said step c) and d) in mixing speed be 800～1000rpm; Churning time is 10～15min, and the auxiliary agent in the step c) is skimmer and wax emulsion, and the auxiliary agent in the step d) is thickening material and flow agent.
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| CN104059513A (en) * | 2013-03-20 | 2014-09-24 | 境洁环保科技（上海）有限公司 | Anti-doodling aqueous interior wall paint and preparation method thereof |
| CN104356774A (en) * | 2014-11-21 | 2015-02-18 | 苏州大乘环保建材有限公司 | Water-based anti-doodling paint and preparation method thereof |
| CN104448992A (en) * | 2014-11-19 | 2015-03-25 | 张洪吉 | Anti-scrawling water-based paint and preparation method thereof |
| CN105017903A (en) * | 2015-07-29 | 2015-11-04 | 广西梧州龙鱼漆业有限公司 | Scratch-resistant wall finish paint |
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| CN104448992A (en) * | 2014-11-19 | 2015-03-25 | 张洪吉 | Anti-scrawling water-based paint and preparation method thereof |
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Application publication date: 20120530 |