CN105176170B - A kind of aqueous acrylamide drawing pigment and preparation method thereof - Google Patents
A kind of aqueous acrylamide drawing pigment and preparation method thereof Download PDFInfo
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Abstract
Aqueous acrylamide drawing pigment of the present invention, include the component of following parts by weight:40~50 parts of acrylic emulsions；5~10 parts of thickeners；10~15 parts of toners；0.2~0.4 part of dispersant；0.02~0.05 portion of preservative；15~20 parts of water；Wherein described thickener is the mixture of hydroxylated cellulose and alkali solubility thickener.The thickener that the aqueous acrylamide drawing pigment uses, because the hydrophobic main chain of hydroxylated cellulose passes through hydrogen bond association with surrounding water molecules, the fluid volume of polymer in itself is improved, reduces the space of Particle free activity, so as to improve the viscosity of whole pigments system.Further, dispersant of the invention, it has relatively low surface tension, has preferable dispersion effect to toner etc.；And during drying and forming-film, with the evaporation of moisture and ammonia, acrylic resin solidifies again, paint film is formed, it will not be hydrolyzed softening again, avoid inter-adhesive phenomenon and occur.
Description
Technical field
The present invention relates to pigment art, more particularly to a kind of aqueous acrylamide drawing pigment and preparation method thereof.
Background technology
Aqueous acrylamide drawing pigment belongs to artificial synthesized polymeric pigment, is made up of pigment toner mediation acrylic emulsion.
It has the advantages that fast light light resistance, it is dry after water proofing property, can in variety carrier painting creation, gradually pushed away by contemporary artists
It is high.
At present, the aqueous acrylamide drawing pigment of in the market is by toner, acrylic emulsion, thickener, dispersant.Wherein thicken
The performances such as thickening of the agent to system, rheology have adjustment effect.It is most of to be associated using conventional base soluble surfactant or polyurethane
Type thickener.Alkali solubility thickener, to add base hydrated thickening, i.e. the acrylic acid of long-chain curling wire type structure is total to its thickening mechanism
Copolymer emulsion, carry a considerable amount of carboxyls on its macromolecular chain, when add in alkali and when, these converting carboxylate groups are into salt, into salt
Under state, due to the electrostatic repulsion of negative electrical charge between neighbored carboxyl groups, polymer is set to extend significantly, so that system viscosity increases greatly
Add.This kind of thickener has good pseudoplastic behavior in product system, paint is reached good textural effect, but this
Class thickener influenceed by shearing force it is bigger, while be diluted with water viscosity decline it is obvious.Polyurethane associative thickener
Its thickening mechanism is absorption latex particle thickening, i.e. the anchoring group of polyurethane associative thickener is adsorbed in emulsion particle sublist
Face, form one layer of thicker adsorption layer.Occur using latex particle as core, adsorption layer is the Novel latex particle knot of core wall
Structure, Novel latex particle diameter is relative to be increased, so as to reaching the mesh of thickening.But such thickener can only act on emulsion particle
Sublist face, thickening effect is not produced to aqueous phase in system, be diluted with water rear viscosity and decline clearly.
Wetting dispersing agent is to prevent pigment and filler grain from re-uniting or precipitating.Wetting dispersing agent is divided into traditional at present
Ionic species surfactant, novel high polymer surfactant two types, its hydrophilic radical are usually alkali metal sulfonate, alkali
Metal sulfate or sour lipid.The wetting dispersing agent of this two type has common property, i.e., all moisture absorption after drying and forming-film, makes
Into hydrolysis.If such wetting dispersing agent is used in aqueous acrylamide paint system, paint surface film is dried
Afterwards, will the moisture absorption hydrolysis, paint film hydrolysis softening, make paint film inter-adhesive when contacting.
Due to being restricted by existing thickener and dispersant, therefore, existing aqueous acrylamide drawing pigment brushing surface
Typically only in 3~5 ㎡/kg, and using the drawing of the pigment after, with the extension of time, paintings surface film is easily inhaled
Softening is hydrolyzed after tide, so as to be sticked together in contact.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of aqueous acrylamide drawing pigment and preparation method thereof, brushing surface
Greatly.
The invention discloses a kind of aqueous acrylamide drawing pigment, include the component of following parts by weight:
40~50 parts of acrylic emulsions；
5~10 parts of thickeners；
10~15 parts of toners；
0.2~0.4 part of dispersant；
0.02~0.05 portion of preservative；
15~20 parts of water；
Wherein described thickener is the mixture of hydroxylated cellulose and alkali solubility thickener.
Preferably, the dispersant is that solid propenoic acid resin is dissolved in the mixture after ammoniacal liquor, and pH value is 8~9, solid third
The weight/mass percentage composition of olefin(e) acid resin is 25~35%.
Preferably, the number-average molecular weight of the hydroxylated cellulose is less than 5000.
Preferably, the hydroxylated cellulose is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose or hydroxypropyl
Methylcellulose.
Preferably, the mass ratio of hydroxylated cellulose and the alkali solubility thickener is 1.5~5.
The invention also discloses a kind of preparation method of aqueous acrylamide drawing pigment, comprise the following steps：
(A) by the toner of 10~15 parts by weight, the water mixing of the dispersant of 0.2~0.4 parts by weight and 15~20 parts by weight
Uniformly, it is polished that color is made；
(B) hydroxylated cellulose and alkali solubility thickener are mixed, obtains thickener；
Thickener described in 40~50 parts of acrylic emulsions and 5~10 parts by weight is mixed, regulation pH value to 8~9, after reaction
Obtain adhesive；
(C) color and adhesive are mixed, obtains aqueous acrylamide drawing pigment.
Preferably, the preparation method of the dispersant is：Solid propenoic acid resin is mixed with ammoniacal liquor, regulation pH value to 8
~9, it is completely dissolved to solid propenoic acid resin, wherein, the weight/mass percentage composition of solid propenoic acid resin is 25~35%.
Preferably, before hydroxylated cellulose and alkali solubility thickener being mixed in the step (B), in addition to：Hydroxyl is fine
Tie up plain pH value to adjust to 7~8.5, carry out pre-activate.
Preferably, in the step (B), the mass ratio of the base cellulose and alkali solubility thickener is 1.5~5.
Preferably, in the step (B), the time of the reaction is 6~10 hours.
Compared with prior art, aqueous acrylamide drawing pigment of the invention employs special thickener, the thickener
For hydroxylated cellulose and the mixture of alkali solubility thickener, because hydrophobic main chain and the surrounding water molecules of hydroxylated cellulose pass through hydrogen
Key associates, and improves the fluid volume of polymer in itself, reduces the space of Particle free activity, so as to improve whole pigment body
The viscosity of system.The thickener of incorporation hydroxylated cellulose not only has good water-retaining property and mobility, while is glued after being diluted with water
It is small to spend fall.Further, present invention includes special dispersant, the dispersant is that solid propenoic acid resin is molten
Mixture after ammoniacal liquor, it has relatively low surface tension, has preferable dispersion effect to toner etc.；And it is being dried to
In membrane process, with the evaporation of moisture and ammonia, pH value reduces, and acrylic resin solidifies again, forms paint film, it will not be again by water
Solution softening, avoid inter-adhesive phenomenon and occur.Test result indicates that aqueous acrylamide drawing pigment brushing surface of the invention
5-9 ㎡/kg, thickness degree are not more than 3.0cm, resist cold, and are freezed in -18 DEG C of environment, the three circulation lotions that thaw never degenerate；It is resistance to
Heat, 3h lotions never degenerate in 80 DEG C of water baths.If it is scattered to use solid propenoic acid resin to be dissolved in the mixture after ammoniacal liquor
Agent, coating and coating layer touch, press upper 20 ㎏ gravity, coating adhesion after 3h.
Brief description of the drawings
Fig. 1 expressions prepare the flow chart of aqueous acrylamide drawing pigment.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are simply further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
The invention discloses a kind of aqueous acrylamide drawing pigment, include the component of following parts by weight:
40~50 parts of acrylic emulsions；
5~10 parts of thickeners；
10~15 parts of toners；
0.2~0.4 part of dispersant；
0.02~0.05 portion of preservative；
15~20 parts of water；
Wherein described thickener is the mixture of hydroxylated cellulose and alkali solubility thickener.
According to the present invention, the aqueous acrylamide drawing pigment includes：It is acrylic emulsion, thickener, toner, dispersant, anti-
Rotten agent and water.
Wherein, the acrylic emulsion, toner, preservative are identical with existing acrylic paints, from commercially available prod.
In the present invention, the acrylic emulsion of 40~50 parts by weight, preferably 42~48 parts by weight are included.Including 10~15 parts by weight
Toner, preferably 12~14 parts by weight.Include the preservative of 0.02~0.05 parts by weight, preferably 0.02~0.04 parts by weight.
The thickener that the present invention adds is the mixture of hydroxylated cellulose and alkali solubility thickener.Hydroxylated cellulose molecular weight
Size directly affect acrylic paints product and be diluted with water performance.Under identical viscosity, if hydroxylated cellulose molecular weight is larger,
It is big to be diluted with water viscosity reduction amplitude.To get a desired effect, it have selected molecular weight less hydroxylated cellulose and system entered
Row thickening.The number-average molecular weight of the preferable hydroxylated cellulose is less than 5000.The hydroxylated cellulose is preferably methylol fibre
Tie up element, hydroxyethyl cellulose, hydroxypropyl cellulose or hydroxypropyl methyl cellulose.The alkali solubility thickener is preferably association type
Alkali solubility thickener.The mass ratio of hydroxylated cellulose and the alkali solubility thickener is preferably 1.5~5, and more preferably 2.5~4.
The addition of the thickener is 5~10 parts by weight, and the dosage of thickener determines according to system viscosity, is ensureing body
It is to increase thickener dosage as far as possible under the conditions of viscosity is basically unchanged, it is small to reduce amplitude for viscosity during ensuring to be diluted with water, and then
It is small to solve the problems, such as that aqueous acrylamide paint is diluted with water rear brushing surface.
In the present invention, the choice relation of dispersant is to forming the adhesive after paint film.Preferable dispersant is solid third
Olefin(e) acid resin is dissolved in the mixture after ammoniacal liquor, and pH value is 8~9, and the weight/mass percentage composition of solid propenoic acid resin is 25~35%.
The present invention is not particularly limited for the concentration of ammoniacal liquor, can adjust pH value to 8~9.The solid propenoic acid resin is molten
When ammoniacal liquor, preferably heated using 80~90 DEG C of water-bath, to accelerate to dissolve.The solid propenoic acid resin is in water
It is insoluble, can preferably it be dissolved by control ph meta-alkalescence solid propenoic acid resin, so as to uniformly be divided
Powder.The dispersant is to the organic synthesis pigment class toner such as the inorganic mineral pigments such as colour carbon black, iron oxide toner and phthalocyanine
It is respectively provided with good dispersion effect；And solid propenoic acid resin will not directly be hydrolyzed softening, therefore in drying varniss process
In, with the volatilization of moisture and ammonia, pH value reduces, and acrylic resin solidifies again, forms paint film, it will not be hydrolyzed soft again
Change, avoid inter-adhesive phenomenon and occur.
The invention also discloses a kind of preparation method of above-mentioned aqueous acrylamide drawing pigment, comprise the following steps：
(A) by the toner of 10~15 parts by weight, the water mixing of the dispersant of 0.2~0.4 parts by weight and 15~20 parts by weight
Uniformly, it is polished that color is made；
(B) hydroxylated cellulose and alkali solubility thickener are mixed, obtains thickener；
Thickener described in 40~50 parts of acrylic emulsions and 5~10 parts by weight is mixed, regulation pH value to 8~9, after reaction
Obtain adhesive；
(C) color and adhesive are mixed, obtains aqueous acrylamide drawing pigment.
According to the present invention, selection and addition for each component will not be repeated here as described in above-mentioned technical scheme.
First by the toner of 10~15 parts by weight, the water mixing of the dispersant of 0.2~0.4 parts by weight and 15~20 parts by weight
Uniformly, it is polished that color is made.The preparation method of the dispersant is preferably：Solid propenoic acid resin is mixed with ammoniacal liquor,
PH value is adjusted to 8~9, is completely dissolved to solid propenoic acid resin, wherein, the weight/mass percentage composition of solid propenoic acid resin is 25
~35%.The solid propenoic acid resin and ammoniacal liquor and when mixing, are preferably heated using 80~90 DEG C of water-bath, to add
Instant solution.The less color of granularity is formed after the grinding, granularity is less than 35 μm after preferably grinding.
While being prepared color or afterwards, hydroxylated cellulose and alkali solubility thickener are mixed, obtain thickener；
The number-average molecular weight of the hydroxylated cellulose is less than 5000.The hydroxylated cellulose is preferably hydroxymethyl cellulose, ethoxy fibre
Dimension element, hydroxypropyl cellulose or hydroxypropyl methyl cellulose.The alkali solubility thickener is preferably association type alkali solubility thickener.
The mass ratio of hydroxylated cellulose and the alkali solubility thickener is preferably 1.5~5, and more preferably 2.5~4.Before both mix,
Preferably hydroxylated cellulose pH value is adjusted to 7~8.5, carries out pre-activate.Hydroxylated cellulose after activation is easier and alkali soluble
Property thickener mixing, and with preferably proposing highly viscous effect.
After obtaining the thickener, thickener described in 40~50 parts of acrylic emulsions and 5~10 parts by weight is mixed, adjusted
PH value obtains adhesive to 8~9 after reaction.The time of the reaction is preferably 6~10 hours.
Finally described adhesive and color are mixed, obtain aqueous acrylamide drawing pigment.During the mixing preferably by
1000~3000r/min speed change dispersion machines are disperseed.
Specific preparation method flow chart is referring to Fig. 1.
Aqueous acrylamide drawing pigment prepared by the present invention can be painted after being diluted with water.After dilution, it can also be protected
Certain viscosity is held, has and preferably applies brushing effects.
For a further understanding of the present invention, with reference to embodiment to aqueous acrylamide drawing pigment provided by the invention and its
Preparation method is described in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
Solid propenoic acid resin is mixed with ammoniacal liquor, regulation pH value to 8, is completely dissolved to solid propenoic acid resin, wherein,
The weight/mass percentage composition of solid propenoic acid resin is 30%.
By the toner of 10 parts by weight, the water of the dispersant of 0.2 parts by weight and 15 parts by weight is well mixed, ground into granularity
For color is made after 35 μm；
By hydroxyethyl cellulose and alkali solubility thickener according to mass ratio 3:2 mixing, obtain thickener；
40 parts of acrylic emulsions and 5 parts of thickeners are mixed, regulation pH value obtains adhesive to 8~9 after reaction；
The color and adhesive are mixed, obtain aqueous acrylamide drawing pigment.
It is enterprising in drawing paper with 120 μm of spreaders after aqueous acrylamide drawing pigment manufactured in the present embodiment is diluted with water into 3 times
Upper 20 ㎏ gravity is pressed in row coating, 5 ㎡ of brushing surface/kg, doubling (coating and coating layer touch) after drying and forming-film to be coated, after 3h
Investigate coating whether adhesion.As a result show, without adhesion phenomenon after 3h.
The aqueous acrylamide drawing pigment is freezed in -18 DEG C of environment, the three circulation lotions that thaw never degenerate；At 80 DEG C
3h lotions never degenerate in water bath.As a result show, the aqueous acrylamide drawing pigment similarly has cold-resistant and heat-resisting spy
Property.
Embodiment 2
Solid propenoic acid resin is mixed with ammoniacal liquor, regulation pH value to 8, is completely dissolved to solid propenoic acid resin, wherein,
The weight/mass percentage composition of solid propenoic acid resin is 32%.
By the toner of 13 parts by weight, the water of the dispersant of 0.3 parts by weight and 18 parts by weight is well mixed, ground into granularity
For color is made after 30 μm；
By hydroxyethyl cellulose and alkali solubility thickener according to mass ratio 5:1 mixing, obtains thickener；
45 parts of acrylic emulsions and 8 parts of thickeners are mixed, regulation pH value obtains adhesive to 8~9 after reaction；
The color and adhesive are mixed, obtain aqueous acrylamide drawing pigment.
It is enterprising in drawing paper with 120 μm of spreaders after aqueous acrylamide drawing pigment manufactured in the present embodiment is diluted with water into 3 times
Upper 20 ㎏ gravity is pressed in row coating, 7 ㎡ of brushing surface/kg, doubling (coating and coating layer touch) after drying and forming-film to be coated, after 3h
Investigate coating whether adhesion.As a result show, without adhesion phenomenon after 3h.
The aqueous acrylamide drawing pigment is freezed in -18 DEG C of environment, the three circulation lotions that thaw never degenerate；At 80 DEG C
3h lotions never degenerate in water bath.As a result show, the aqueous acrylamide drawing pigment similarly has cold-resistant and heat-resisting spy
Property.
Embodiment 3
Solid propenoic acid resin is mixed with ammoniacal liquor, regulation pH value to 9, is completely dissolved to solid propenoic acid resin, wherein,
The weight/mass percentage composition of solid propenoic acid resin is 32%.
By the toner of 15 parts by weight, the water of the dispersant of 0.4 parts by weight and 20 parts by weight is well mixed, ground into granularity
For color is made after 25 μm；
By hydroxyethyl cellulose and alkali solubility thickener according to mass ratio 2:1 mixing, obtains thickener；
50 parts of acrylic emulsions and 10 parts of thickeners are mixed, regulation pH value obtains adhesive to 8~9 after reaction；
The color and adhesive are mixed, obtain aqueous acrylamide drawing pigment.
It is enterprising in drawing paper with 120 μm of spreaders after aqueous acrylamide drawing pigment manufactured in the present embodiment is diluted with water into 3 times
Upper 20 ㎏ gravity is pressed in row coating, 9 ㎡ of brushing surface/kg, doubling (coating and coating layer touch) after drying and forming-film to be coated, after 3h
Investigate coating whether adhesion.As a result show, without adhesion phenomenon after 3h.
The aqueous acrylamide drawing pigment is freezed in -18 DEG C of environment, the three circulation lotions that thaw never degenerate；At 80 DEG C
3h lotions never degenerate in water bath.As a result show, the aqueous acrylamide drawing pigment similarly has cold-resistant and heat-resisting spy
Property.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (5)
1. a kind of aqueous acrylamide drawing pigment, is made up of the component of following parts by weight:
40~50 parts of acrylic emulsions；
5~10 parts of thickeners；
10~15 parts of toners；
0.2~0.4 part of dispersant；
0.02~0.05 portion of preservative；
15~20 parts of water；
Wherein described thickener is the mixture of hydroxylated cellulose and alkali solubility thickener；The hydroxylated cellulose and alkali solubility increase
Thick dose of mass ratio is 1.5~5；
The dispersant is that solid propenoic acid resin is dissolved in the mixture after ammoniacal liquor, and pH value is 8~9, solid propenoic acid resin
Weight/mass percentage composition is 25~35%.
2. aqueous acrylamide drawing pigment according to claim 1, it is characterised in that the equal molecule of number of the hydroxylated cellulose
Amount is less than 5000.
3. aqueous acrylamide drawing pigment according to claim 2, it is characterised in that the hydroxylated cellulose is that methylol is fine
Tie up element, hydroxyethyl cellulose, hydroxypropyl cellulose or hydroxypropyl methyl cellulose.
4. a kind of preparation method of aqueous acrylamide drawing pigment, comprises the following steps：
(A) by the toner of 10~15 parts by weight, the water of the dispersant of 0.2~0.4 parts by weight and 15~20 parts by weight is well mixed,
It is polished that color is made；
The dispersant is that solid propenoic acid resin is dissolved in the mixture after ammoniacal liquor, and pH value is 8~9, solid propenoic acid resin
Weight/mass percentage composition is 25~35%；
(B) hydroxylated cellulose pH value is adjusted to 7~8.5, carries out pre-activate；Hydroxylated cellulose and alkali solubility thickener are mixed
Close, obtain thickener；The mass ratio of hydroxylated cellulose and the alkali solubility thickener is 1.5~5；
Thickener described in 40~50 parts of acrylic emulsions and 5~10 parts by weight is mixed, regulation pH value obtains to 8~9 after reaction
Adhesive；
(C) color and adhesive are mixed, obtains aqueous acrylamide drawing pigment.
5. preparation method according to claim 4, it is characterised in that in the step (B), the time of the reaction is 6
~10 hours.
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| CN109208347A (en) * | 2017-07-05 | 2019-01-15 | 钱乃立 | Textile sprinkles color printing method |
| CN108587283A (en) * | 2018-05-21 | 2018-09-28 | 张丽娟 | A kind of oil painting drawing pigment of strong adhesive force and preparation method thereof |
| CN108912781B (en) * | 2018-08-16 | 2020-07-28 | 界首市翰墨文化艺术传媒有限公司 | Light-resistant and mildew-resistant red pigment |
| CN109535834A (en) * | 2018-10-24 | 2019-03-29 | 嘉兴凯兴达新材料科技有限公司 | A kind of preparation method of novelty painting and calligraphy prepared Chinese ink |
| CN109796860A (en) * | 2019-02-28 | 2019-05-24 | 烟台南山学院 | A kind of drawing aqueous polyurethane art painting and preparation method thereof |
| CN111334108A (en) * | 2020-04-24 | 2020-06-26 | 河北青竹画材科技有限公司 | Solid acrylic painting pigment and preparation method thereof |
| CN115505306A (en) * | 2022-10-21 | 2022-12-23 | 广州市美帮祈富文仪有限公司 | Preparation method of acrylic painting pigment with retro repair effect and pigment thereof |
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| CN101225250A (en) * | 2007-12-26 | 2008-07-23 | 宋健 | Art acrylic paints containing nano-pigment and method for manufacturing same |
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