CN103554403B - A kind of aqueous photo-curing aminoresin and preparation method - Google Patents
A kind of aqueous photo-curing aminoresin and preparation method Download PDFInfo
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- CN103554403B CN103554403B CN201310525346.9A CN201310525346A CN103554403B CN 103554403 B CN103554403 B CN 103554403B CN 201310525346 A CN201310525346 A CN 201310525346A CN 103554403 B CN103554403 B CN 103554403B
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Abstract
The present invention relates to a kind of aqueous photo-curing aminoresin and preparation method thereof, its object is to provide a kind of hardness high, glossiness is high, the feature that chemical resistant properties is excellent, production technique is simple, raw materials cost is low, be easy to the aqueous photo-curing aminoresin of scale operation, in the present invention by aminoresin and water-soluble monomer in 20-180 DEG C of temperature, the obtained aqueous photo-curing aminoresin of reaction under an acidic catalyst and stopper existence condition, its photocuring product can be widely used in building materials furniture, printing packaging and ad decoration, electronic information, automobile, machinery, the fields such as health care.
Description
Technical field
The present invention relates to photocuring technology field, particularly relate to a kind of aqueous photo-curing aminoresin and preparation method.
Background technology
Photocuring technology refers under light (UV-light, visible ray) and energetic ray (mainly electron beam) effect, liquid-state oligomers forms (comprising monomer) process of solid product through crosslinking polymerization, also custom is called radiation curing, can be implemented under room temperature without any need for instantaneous solidification when solvent, is a kind of efficient, curing technology that suitability is wide, economic, energy-conservation and environmentally friendly.Traditional photocurable formulation system is normally oil-soluble, by light trigger, reactive oligopolymer and being used for regulates the reactive thinner composition of dispensing viscosity, although reactive thinner volatility is very low, environmental pollution is less, a part for film is become after solidification, but it has strong smell, certain pungency is had to skin, ultraviolet light polymerization process difficult makes reactive thinner all solidify, residual reactive thinner causes detrimentally affect to the safety and sanitation of product and long-term behaviour, and reactive thinner add the shrinking percentage increasing film, the physicals of film is declined, in a lot of application scenario, the needs of use are met in order to reach certain film performance, usually also to add a small amount of organic solvent adjusting viscosity, this makes oiliness UV curing system be difficult to accomplish 100% solidification, uncured organic solvent evaporate in air and forms volatile organic compounds (Volatile Organic Compounds, VOC).Therefore improve the over-all properties of UV curing system, reduce the consumption of reactive thinner and reduce the development trend that VOC burst size is current UV curing system.
Aqueous photo-curing system combines the technology of photocuring technology and aqueous medium, it adopts water and alcohols as thinner and dispersion medium, can the use of basically eliminate reactive thinner, it possesses many advantages: can greatly reduce VOC and toxicity problem, the high molecular of oligopolymer and low cross-linking density, can avoid the cure shrinkage caused by reactive thinner, the final sticking power of film is good; The contradiction of high rigidity that conventional oil-based coating can not have simultaneously and high tenacity can be solved simultaneously; Water-based system can regulate rheological more easily; Very thin coating can be obtained by regulating the solid content of formula; Be applicable to spraying, roller coat, brushing general coating method and equipment can be easy to cleaning; Water is the medium of safety cheapness, nonflammable; Water-borne UV-curing system becomes the new development trend of photocuring.
Aqueous photo-curing system has a wide range of applications field, with traditional offset plate material, flexible resin plates, digital printed, and the form such as coating, ink, tackiness agent, electronic printing, electronic chemical product occurs, is widely used in the field such as building materials furniture, printing packaging and ad decoration, electronic information, automobile, machinery, health care.Ubiquitous in daily life.
The main composition of aqueous photo-curing system is water borne UV curing resin, also referred to as oligopolymer, oligopolymer and performed polymer, wetting ability power according to water borne UV curing resin can be divided into the aqueous solution, water dispersible and emulsion-type three kinds of systems, wetting ability can be dissolved in the water by force becomes the aqueous solution, wetting ability is more weak hydrophilic radical and hydrophobic grouping can be equilibrated at the translucent dispersion forming 20 ~ 100nm in water, if resin is not dissolved in water, by effect that is mechanical and emulsifying agent, be separated into relatively stable uniform emulsion system, because it contains additional emulsifying agent, detrimentally affect is had to paint film, water dispersible and water solution system commonplace.The condition meeting water borne UV curing resin has two, there is certain hydrophilic radical and unsaturated group, just can dissolve and be dispersed in water, and be solidified into cross-linked network under the irradiation of light, water borne UV curing resin is a kind of polymkeric substance of molecular structure relative complex.
The resin being mainly used in aqueous photo-curing in the market mainly contains: waterborne polyester acrylate, waterborne epoxy acrylate, aqueous polyurethane acrylate, acrylic ester emulsion etc., hydrophilic radical is introduced in the above resin process of synthesis, as carboxyl (carboxylic acid anhydride), amino, ether, amide group etc., or on oiliness matrix resin, carry out modification, access above hydrophilic radical and also can obtain.But these resins all respectively have different features, be applied to every field, but all demands can not be met in the application, waterborne polyester acrylate cures speed is slow, and the large fragility of waterborne epoxy acrylate hardness is also large, and aqueous polyurethane acrylate has excellent snappiness wear resistance and chemical resistant properties, but cost is high, unstable properties, acrylic ester emulsion chemical resistant properties, water-fast and acid and alkali-resistance is bad, and market also needs the water borne UV curing resin with different premium properties more.
Summary of the invention
The technical problem to be solved in the present invention is to provide aqueous photo-curing aminoresin that a kind of cost is low, hardness is high, glossiness is good, sticking power is good and preparation method thereof.
For reaching above-mentioned purpose, a kind of aqueous photo-curing aminoresin of the present invention, comprises following component:
Aminoresin 80 ~ 100 weight part;
Water-soluble monomer 20 ~ 200 weight part;
Wherein said water-soluble monomer is containing imino-, carboxyl, hydroxyl, amide group, epoxy group(ing), wherein one or two above group of ehter bond and simultaneously containing the compound of carbon-carbon double bond.
Wherein said aminoresin is urea-formaldehyde resin, terpolycyantoamino-formaldehyde resin, benzoguanamine formaldehyde resin or mixed amino resin.
Wherein said water-soluble monomer is (methyl) acrylamide, maleimide, (methyl) Hydroxyethyl acrylate, hydroxyacrylamide, maleic anhydride, hydroxyethyl vinyl ether, N-cyclohexyl acrylamide or TriMethylolPropane(TMP).
Wherein for preventing the polymerization of ethene unsaturated group double bond, also can add stopper 1 ~ 5 weight part, wherein said stopper is Resorcinol, to methoxyl group phenol, cuprous chloride, iron trichloride or stopper 701.
Wherein for improving polymerization efficiency, also can add catalyzer 1 ~ 15 weight part, described catalyzer is acidic cpd, for organic acid, acid anhydrides, can form H in a heated condition
+acidogenic agent or close acid.
Wherein said catalyzer is citric acid, tetrahydrophthalic anhydride or triazine B.
Prepare a method for described aqueous photo-curing aminoresin, comprise following steps:
(1) raw material mixing: described aminoresin and described water-soluble monomer are added in reaction vessel, stirs;
(2) sealed vessel, starts vacuum pump, makes system be in negative pressure;
(3) 20 ~ 180 DEG C of temperature are warming up to, insulation reaction 0.5 ~ 10 hour, temperature preferably 80 ~ 130 DEG C, preferably 1 ~ 4 hour time;
(4) logical water coolant cools the temperature to room temperature, and obtained finished product, finished product is liquid.
Wherein said raw material mixing step also comprises and adds stopper 1 ~ 5 weight part, and wherein said stopper is Resorcinol, to methoxyl group phenol, cuprous chloride, iron trichloride or stopper 701.
Wherein said raw material mixing step also comprises and adds catalyzer 1 ~ 15 weight part, and described catalyzer is acidic cpd, for organic acid, acid anhydrides, can form H in a heated condition
+acidogenic agent or close acid.
Wherein said catalyzer is citric acid, tetrahydrophthalic anhydride or triazine B.
The invention difference from existing technology is that the present invention achieves and has obtained so that cost is low the aqueous photo-curing aminoresin that hardness is high, glossiness good, sticking power is good.
Embodiment
Below in conjunction with embodiment, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Embodiment 1
Urea-formaldehyde resin 100g and N-cyclohexyl acrylamide 200g is added in 500ml there-necked flask successively, seals after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 50 DEG C of reactions 10 hours, system is down to room temperature by logical water coolant, obtained finished product 1.
Embodiment 2
Benzoguanamine formaldehyde resin 90g and hydroxyacrylamide 150g is added in 500ml there-necked flask successively, seals after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 80 DEG C of reactions 8 hours, system is down to room temperature by logical water coolant, obtained finished product 2.
Embodiment 3
Terpolycyantoamino-formaldehyde resin HS1020,130g hydroxyethyl vinyl ether of the normal-butyl etherificate of 80g and 3g cuprous chloride are added in 500ml there-necked flask successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 100 DEG C of reactions 5 hours, system is down to room temperature by logical water coolant, obtained finished product 3.
Embodiment 4
The methanol/ethanol of 90g being mixed etherification benzene substituted ultrapas formaldehyde resin 5783,110g hydroxyethyl vinyl ether, 4g cuprous chloride and 1g tetrahydrophthalic anhydride adds in 500ml there-necked flask successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 120 DEG C of reactions 1 hour, system is down to room temperature by logical water coolant, obtained finished product 4.
Embodiment 5
Urea-formaldehyde resin 80g, acrylamide 200g, phosphoric acid 5g and Resorcinol 0.1g are added in 500ml there-necked flask successively, seals after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 50 DEG C of reactions 10 hours, system is down to room temperature by logical water coolant, obtained finished product 5.
Embodiment 6
80g methyl-etherified terpolycyantoamino-formaldehyde resin 303,200g maleimide, 5g tetrahydrophthalic anhydride and 0.1g stopper 701 are added in 500ml there-necked flask successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 80 DEG C of reactions 8 hours, system is down to room temperature by logical water coolant, obtained finished product 6.
Embodiment 7
90g butoxy terpolycyantoamino-formaldehyde resin 9223-60,100g acrylamide, 10g citric acid and 2g iron trichloride are added in 500ml there-necked flask successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 130 DEG C of reactions 5 hours, system is down to room temperature by logical water coolant, obtained finished product 7.
Embodiment 8
Terpolycyantoamino-formaldehyde resin HS1020,100g maleic anhydride of 90g normal-butyl etherificate is added in 500ml there-necked flask successively, seals after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 150 DEG C of reactions 4 hours, system is down to room temperature by logical water coolant, obtained finished product 8.
Embodiment 9
100g methanol/ethanol being mixed etherification benzene substituted ultrapas formaldehyde resin 5783,200g TriMethylolPropane(TMP), 15g citric acid and 5g Resorcinol adds in 500ml there-necked flask successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 170 DEG C of reactions 1 hour, system is down to room temperature by logical water coolant, obtained finished product 9.
Embodiment 10
The reactive fourth of 100g imines fundamental mode etherification benzene substituted ultrapas formaldehyde resin MF988,200g hydroxyethyl methylacrylate, 15g triazine B and 5g are added in 500ml there-necked flask to methoxyl group phenol successively, seal after stirring, start vacuum pump, system is made to be in negative pressure state, be warming up to 180 DEG C of reactions 0.5 hour, system is down to room temperature by logical water coolant, obtained finished product 10.
Urea-formaldehyde resin: three lignify works
N-cyclohexyl acrylamide: the prosperous photoinitiator chemical in Hebei
Terpolycyantoamino-formaldehyde resin: cyanogen is special
Hydroxyacrylamide: the prosperous photoinitiator chemical in Hebei
The terpolycyantoamino-formaldehyde resin HS1020 of normal-butyl etherificate: cyanogen is special
Hydroxyethyl vinyl ether: the prosperous photoinitiator chemical in Hebei
Methanol/ethanol mixes etherification benzene substituted ultrapas formaldehyde resin 5783: cyanogen is special
Hydroxyethyl vinyl ether: Jinan Yue Kai Chemical Co., Ltd.
Tetrahydrophthalic anhydride: Wuhan Xing Zhongcheng Science and Technology Ltd.
Acrylamide: the prosperous photoinitiator chemical in Hebei
Methyl-etherified terpolycyantoamino-formaldehyde resin 303: cyanogen is special
Maleimide: east, Suzhou waffle work
Stopper 701: the rich prosperous chemical industry in Zhengzhou
Butoxy terpolycyantoamino-formaldehyde resin 9223-60: cyanogen is special
Triazine B: chemical industry is won in Shen, Jingmen
The reactive fourth of imines fundamental mode etherification benzene substituted ultrapas formaldehyde resin MF988: cyanogen is special
Detection method:
The finished product 1-10 obtained respectively, each 100g, adds in 10 beakers respectively, adds 5g2-hydroxy-2-methyl-1-phenyl-1-acetone (light trigger 1173 in each beaker respectively, HMPF), 5g water, 5g ethanol, the efficient organosilyl surface auxiliary agent B YK-306 of 0.5g, after stirring, adopt the coating of 20# spreading rod, carry out photocuring with GZJ1000F-1-T type UV irradiating machine, light source is 1000W high voltage mercury lamp, and the energy of 5s time shutter is about 320mJ/cm
2.
Hardness detection method: test with reference to GB/T6739-1996;
Glossiness detection method: measure with reference to GB9754-79 Grossmeters;
Chemical resistance: ethyl acetate and toluene mixture liquid (weight ratio 1:1) are applied to specimen surface, preserve 24 hours clear water clean clean, surface is unchanged;
Test result is as shown in table 1.
Table 1: each finished product Indexs measure result
| Glossiness | Hardness | Chemical resistance | Storage characteristics | |
| Embodiment 1 | 92° | 3H | Without exception | 4 months |
| Embodiment 2 | 90° | 2H | Without exception | 4 months |
| Embodiment 3 | 95° | 2H | Without exception | 3 months |
| Embodiment 4 | 92° | 2H | Without exception | 1 year |
| Embodiment 5 | 89° | 3H | Without exception | 8 months |
| Embodiment 6 | 86° | 2H | Without exception | 1 year |
| Embodiment 7 | 90° | 2H | Without exception | 5 months |
| Embodiment 8 | 93° | 2H | Without exception | 3 months |
| Embodiment 9 | 90° | 1.5H | Without exception | 8 months |
| Embodiment 10 | 88° | 1H | Without exception | 3 months |
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (6)
1. an aqueous photo-curing aminoresin, is characterized in that comprising following component:
Aminoresin 80 ~ 100 weight part;
Water-soluble monomer 20 ~ 200 weight part;
Stopper 1 ~ 5 weight part;
Catalyzer 1 ~ 15 weight part;
Wherein said water-soluble monomer is the compound containing amide group and simultaneously containing carbon-carbon double bond;
Described aminoresin is urea-formaldehyde resin, terpolycyantoamino-formaldehyde resin, benzoguanamine formaldehyde resin or mixed amino resin;
Described water-soluble monomer is (methyl) acrylamide, maleimide, hydroxyacrylamide or N-cyclohexyl acrylamide;
Described catalyzer is acidic cpd;
It is prepared from by following methods:
(1) raw material mixing: described aminoresin, described water-soluble monomer, described stopper and described catalyzer are added in reaction vessel, stirs;
(2) sealed vessel, starts vacuum pump, makes system be in negative pressure;
(3) 20 ~ 180 DEG C are warming up to, insulation reaction 0.5 ~ 10 hour;
(4) logical water coolant cools the temperature to room temperature, obtained finished product.
2. aqueous photo-curing aminoresin according to claim 1, is characterized in that: described stopper is Resorcinol, to methoxyl group phenol, cuprous chloride, iron trichloride or stopper 701.
3. aqueous photo-curing aminoresin according to claim 1, is characterized in that: described catalyzer is organic acid, acid anhydrides, can form H in a heated condition
+acidogenic agent.
4. aqueous photo-curing aminoresin according to claim 3, is characterized in that: described catalyzer is citric acid, tetrahydrophthalic anhydride or triazine B.
5. aqueous photo-curing aminoresin according to claim 1, is characterized in that: step is warming up to 80 ~ 130 DEG C in (3).
6. aqueous photo-curing aminoresin according to claim 1, is characterized in that: step (3) insulation reaction 1 ~ 4 hour.
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| CN105348466A (en) * | 2015-10-29 | 2016-02-24 | 湖南汇田高分子科技有限公司 | Preparation method of water-soluble ultraviolet light self-curing amino resin |
| CN105462446A (en) * | 2015-11-24 | 2016-04-06 | 安徽家德利门业有限公司 | Door UV-curable paint and preparation method thereof |
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| CN109354824B (en) * | 2018-09-29 | 2021-05-25 | 邦弗特新材料股份有限公司 | Waterborne photocuring modified melamine formaldehyde impregnating resin and preparation method thereof |
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| CN114163854B (en) * | 2021-12-09 | 2023-09-26 | 南雄市沃太化工有限公司 | Low-formaldehyde amino UV resin and preparation method thereof |
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| CN102822161A (en) * | 2010-03-24 | 2012-12-12 | 住友精化株式会社 | Method for producing optically active n-monoalkyl-3-hydroxy-3-arylpropylamine compound |
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