CN112662223A - Self-antibacterial double-component water-based fluorescent paint - Google Patents
Self-antibacterial double-component water-based fluorescent paint Download PDFInfo
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Abstract
The invention relates to a self-antibacterial two-component water-based fluorescent paint which comprises a component A and a component B, wherein the component A and the component B are as follows in parts by weight: a and B are 4-7: 1; the component A comprises the following components in parts by weight: 100.0-150.0 parts of water-based alkyd resin, 0.4-1.0 part of pH regulator, 0.2-0.6 part of defoamer, 3.0-9.0 parts of antifreeze, 0.3-0.8 part of flatting agent, 0.3-0.8 part of thickener, 0.3-0.8 part of wetting agent and 15.0-30.0 parts of deionized water; the component B is a special water-based curing agent containing a trimeric indenone structure, and is prepared by reacting tripolymer, dimethylolpropionic acid, oligomer polyol, alkyd resin, polyol, a trimeric indenone derivative and a neutralizer; the self-antibacterial double-component water-based fluorescent paint disclosed by the invention adopts the water-based curing agent with good antibacterial and fluorescent properties, can achieve good antibacterial property and fluorescent property without adding an antibacterial agent and a fluorescent auxiliary agent, and is wide in application range.
Description
Technical Field
The invention relates to a bi-component water-based paint, in particular to a self-antibacterial bi-component water-based fluorescent paint, belonging to the technical field of water-based functional paints.
Background
The traditional solvent type polyurethane coating contains a large amount of harmful and toxic organic volatile substances, and seriously pollutes the environment, while the water-based single-component polyurethane has low solid content, low crosslinking density and poor coating regularity, so the aspects of water resistance, chemical resistance, wear resistance, hardness and the like are far away from the solvent type, and the two-component water-based polyurethane coating combines the high performance of the solvent type two-component polyurethane coating and the low organic compound emission of the water-based coating, thereby becoming a hotspot of the coating industry research.
The two-component waterborne polyurethane coating consists of hydroxyl-containing waterborne polyol resin and an NCO-group-containing low-viscosity polyisocyanate curing agent, and the film coating performance of the coating is mainly determined by the composition, the structure and the curing agent of the hydroxyl resin. The conventional two-component waterborne polyurethane coating is crosslinked and cured with polyisocyanate, so that although partial performance of the coating is improved, performance indexes such as corrosion resistance, fluorescence performance and antibacterial performance of the coating still cannot meet ideal requirements, and the requirements of high difficulty and special fields are difficult to meet.
The invention discloses a waterproof antibacterial coating and a preparation method thereof, and the waterproof antibacterial coating comprises the following components in parts by weight: 56-62 parts of perfluorinated silanized epoxy resin, 13-15 parts of branched antibacterial curing agent, 1.1-1.3 parts of flatting agent, 21-32 parts of pigment and filler, 0.8-1.1 parts of degassing agent and 1.2-1.4 parts of benzoin; two antibacterial units, namely isothiazolinone, are introduced into two ends of a curing agent to form a bis-isothiazolinone antibacterial curing agent, a hyperbranched compact structure is formed after the bis-isothiazolinone antibacterial curing agent is modified by hyperbranched crosslinking with epoxy resin, and a large number of antibacterial groups are uniformly dispersed on a branched structure chain, so that the whole coating is uniform from inside to outside and has high antibacterial performance, and the antibacterial performance is uniform and stable, so that the antibacterial performance of the whole coating is high; but it does not have the special function of fluorescence.
Disclosure of Invention
In order to solve the problems, the special water-based curing agent containing the indenone structure and having good antibacterial property and fluorescence property is adopted, the application area is wide, the water-based resin containing hydroxyl can be matched at will, and the defects that the two-component water-based paint is poor in antibacterial property, free of fluorescence property, and the like, and an antibacterial agent needs to be added are effectively overcome.
The invention aims to provide a self-antibacterial two-component water-based fluorescent paint.
The invention adopts the following technical scheme: the invention relates to a self-antibacterial two-component water-based fluorescent paint which comprises a component A and a component B.
The component A comprises the following specific components in parts by weight: 100.0-150.0 parts of water-based alkyd resin, 0.4-1.0 part of pH regulator, 0.2-0.6 part of defoamer, 3.0-9.0 parts of antifreeze, 0.3-0.8 part of flatting agent, 0.3-0.8 part of thickener, 0.3-0.8 part of wetting agent and 15.0-30.0 parts of deionized water; wherein the component B is a special water-based curing agent containing a truxene ketone structure.
The antifreezing agent is one or a combination of more of ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, ethylene glycol butyl ether, propylene glycol butyl ether, ethylene glycol butyl ether acetate, formamide, calcium chloride and sodium acetate.
The pH regulator is one or a combination of more of AMP-95, sodium bicarbonate, sodium carbonate, triethylamine and ammonia water.
The component A and the component B are as follows according to the weight ratio: a: b is 4-7: 1.
The component B is a special water-based curing agent containing a truxene ketone structure, and adopts the following technical scheme: the composition comprises the following components in parts by weight: 60.0-80.0 parts of tripolymer, 1.0-2.5 parts of dimethylolpropionic acid, 5.0-10.0 parts of oligomer polyol, 6.0-12.0 parts of alkyd resin, 0.01-0.1 part of dibutyltin dilaurate, 1.0-3.0 parts of polyol, 2.0-5.0 parts of trimeric indanone derivative, 1.5-4.0 parts of neutralizer and 8.0-15.0 parts of inert solvent.
Wherein the indenone derivative is prepared by the reaction of indenone and 2-hydroxyethylamine.
The trimer is one or the combination of two of isophorone diisocyanate trimer and hexamethylene diisocyanate trimer.
The oligomer polyol is one or a combination of more of polytetrahydrofuran polyol, polycarbonate polyol, polyether glycol and polyethylene glycol; the average molecular weight of the oligomer polyol is 600-1000.
The polyalcohol is one or a combination of more of 1, 4-cyclohexanedimethanol, 1, 4-butanediol and trimethylolpropane.
The inert solvent is one or a combination of several of diethylene glycol ethyl ether acetate, N-methyl pyrrolidone, propylene glycol methyl ether acetate and propylene glycol ethyl ether acetate.
The neutralizing agent is one or the combination of two of triethylamine and sodium bicarbonate.
The invention provides a preparation method of a special water-based curing agent containing a truxene ketone structure, which comprises the following steps:
a) dehydrating and drying oligomer polyalcohol, inert solvent and polyalcohol in advance for later use;
b) introducing nitrogen into a reactor, adding oligomer polyalcohol, an inert solvent, polyalcohol, a trimeric indanone derivative, dimethylolpropionic acid and alkyd resin according to the formula amount, heating, stirring and dissolving, adding a trimer, keeping the temperature at 80-82 ℃, stirring and reacting for 1.5-2.0 h, dropwise adding dibutyltin dilaurate, heating to 90-92 ℃, keeping the temperature, reacting for 1.0-1.5 h, and detecting the NCO value until the NCO value is consistent with the design value;
c) cooling, slowly dropwise adding a neutralizer for neutralization, stirring for reaction, uniformly dispersing, filtering, and discharging to obtain the special water-based curing agent containing the indenone structure.
Compared with the prior art, the self-antibacterial double-component water-based fluorescent paint prepared by the invention has the following advantages: the self-antibacterial double-component water-based fluorescent paint prepared by the invention adopts the water-based curing agent with good antibacterial and fluorescent properties, can achieve good antibacterial property and fluorescent property without adding an antibacterial agent and a fluorescent auxiliary agent, and has wide application range.
Detailed Description
The present invention is further described with reference to the following examples in which a self-antibacterial two-component aqueous fluorescent coating is provided. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
Example 1
A special water-based curing agent X containing a truxene ketone structure comprises the following components in parts by weight: 75.0 parts of isophorone diisocyanate tripolymer, 1.6 parts of dimethylolpropionic acid, 6.0 parts of polytetrahydrofuran polyol, 8.0 parts of alkyd resin, 0.05 part of dibutyltin dilaurate, 1.8 parts of 1, 4-cyclohexanedimethanol, 4.0 parts of indanone derivative, 2.0 parts of triethylamine and 12.0 parts of diethylene glycol ethyl ether acetate.
The preparation method of the special water-based curing agent X containing the indenone structure in the embodiment comprises the following steps:
a) dehydrating and drying polytetrahydrofuran polyol, diethylene glycol ethyl ether acetate and 1, 4-cyclohexanedimethanol in advance for later use;
b) introducing nitrogen into a reactor, adding polytetrahydrofuran polyol, diethylene glycol ethyl ether acetate, 1, 4-cyclohexanedimethanol, a trimeric indanone derivative, dimethylolpropionic acid and alkyd resin according to the formula amount, heating, stirring and dissolving, adding isophorone diisocyanate trimer, keeping the temperature and stirring for reaction for 2.0h at 80-82 ℃, dropwise adding dibutyltin dilaurate, heating to 90-92 ℃, keeping the temperature and reacting for 1.0h, and detecting the NCO value until the NCO value is consistent with the designed value;
c) cooling, slowly dropwise adding triethylamine for neutralization, stirring for reaction, uniformly dispersing, filtering, and discharging to obtain the special water-based curing agent X containing the indenone structure.
Example 2
A special water-based curing agent Y containing a truxene ketone structure comprises the following components in parts by weight: 65.0 parts of hexamethylene diisocyanate trimer, 2.0 parts of dimethylolpropionic acid, 7.0 parts of polyether glycol, 7.0 parts of alkyd resin, 0.05 part of dibutyltin dilaurate, 2.0 parts of 1, 4-butanediol, 3.5 parts of indenone derivative, 2.0 parts of sodium bicarbonate and 13.0 parts of N-methylpyrrolidone.
The preparation method of the special water-based curing agent Y containing the indenone structure in the embodiment comprises the following steps:
a) carrying out dewatering and drying treatment on polyether dihydric alcohol, N-methyl pyrrolidone and 1, 4-butanediol in advance for later use;
b) introducing nitrogen into a reactor, adding polyether glycol, N-methyl pyrrolidone, 1, 4-butanediol, a trimeric indanone derivative, dimethylolpropionic acid and alkyd resin according to the formula amount, heating, stirring and dissolving, adding hexamethylene diisocyanate trimer, keeping the temperature at 80-82 ℃, stirring and reacting for 1.5h, dropwise adding dibutyltin dilaurate, heating to 90-92 ℃, keeping the temperature, reacting for 1.5h, and detecting the NCO value until the NCO value is consistent with the design value;
c) cooling, slowly dropwise adding sodium bicarbonate for neutralization, stirring for reaction, uniformly dispersing, filtering, and discharging to obtain the special water-based curing agent Y containing the indenone structure.
Example 3
The self-antibacterial double-component water-based fluorescent paint is characterized by comprising a component A and a component B, wherein the mass ratio of the component A to the component B is 5:1, and the component A comprises the following components in parts by weight: 130.0 parts of water-based alkyd resin, 0.8 part of triethylamine, 0.5 part of defoaming agent, 6.0 parts of ethylene glycol, 0.5 part of flatting agent, 0.4 part of thickening agent, 0.5 part of wetting agent and 20.0 parts of deionized water.
Example 4
The self-antibacterial double-component water-based fluorescent paint is characterized by comprising a component A and a component B, wherein the mass ratio of the component A to the component B is 6:1, and the component A comprises the following components in parts by weight: 120.0 parts of water-based alkyd resin, 0.4 part of an AMP-950.6 part, 0.4 part of a defoaming agent, 7.0 parts of propylene glycol butyl ether, 0.5 part of a leveling agent, 0.4 part of a thickening agent, 0.5 part of a wetting agent and 22.0 parts of deionized water.
The performance test indexes of the self-antibacterial two-component water-based fluorescent paint according to the relevant standards are shown in table 1.
Table 1: embodiment performance technical index of the invention
The foregoing description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed; it will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (4)
1. A self-antibacterial two-component water-based fluorescent paint is characterized in that: the self-antibacterial two-component water-based fluorescent paint comprises a component A and a component B, wherein the component A and the component B are as follows according to the ratio of parts by weight: a: b is 4-7: 1;
the component A comprises the following specific components in parts by weight: 100.0-150.0 parts of water-based alkyd resin, 0.4-1.0 part of pH regulator, 0.2-0.6 part of defoamer, 3.0-9.0 parts of antifreeze, 0.3-0.8 part of flatting agent, 0.3-0.8 part of thickener, 0.3-0.8 part of wetting agent and 15.0-30.0 parts of deionized water; wherein the component B is a special water-based curing agent containing a truxene ketone structure;
the component B is a special water-based curing agent containing a truxene ketone structure, and adopts the following technical scheme: the composition comprises the following components in parts by weight: 60.0-80.0 parts of tripolymer, 1.0-2.5 parts of dimethylolpropionic acid, 5.0-10.0 parts of oligomer polyol, 6.0-12.0 parts of alkyd resin, 0.01-0.1 part of dibutyltin dilaurate, 1.0-3.0 parts of polyol, 2.0-5.0 parts of trimeric indanone derivative, 1.5-4.0 parts of neutralizer and 8.0-15.0 parts of inert solvent;
wherein the indenone derivative is prepared by the reaction of indenone and 2-hydroxyethylamine.
2. The self-antibacterial two-component aqueous fluorescent coating of claim 1, characterized in that: the antifreezing agent is one or a combination of more of ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, ethylene glycol butyl ether, propylene glycol butyl ether, ethylene glycol butyl ether acetate, formamide, calcium chloride and sodium acetate.
3. The self-antibacterial two-component aqueous fluorescent coating of claim 1, characterized in that: the pH regulator is one or a combination of more of AMP-95, sodium bicarbonate, sodium carbonate, triethylamine and ammonia water.
4. The self-antibacterial two-component aqueous fluorescent coating of claim 1, characterized in that: the preparation method of the special water-based curing agent containing the truxene ketone structure comprises the following steps:
a) dehydrating and drying oligomer polyalcohol, inert solvent and polyalcohol in advance for later use;
b) introducing nitrogen into a reactor, adding oligomer polyalcohol, an inert solvent, polyalcohol, a trimeric indanone derivative, dimethylolpropionic acid and alkyd resin according to the formula amount, heating, stirring and dissolving, adding a trimer, keeping the temperature at 80-82 ℃, stirring and reacting for 1.5-2.0 h, dropwise adding dibutyltin dilaurate, heating to 90-92 ℃, keeping the temperature, reacting for 1.0-1.5 h, and detecting the NCO value until the NCO value is consistent with the design value;
c) cooling, slowly dropwise adding a neutralizer for neutralization, stirring for reaction, uniformly dispersing, filtering, and discharging to obtain the special water-based curing agent containing the indenone structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507571.6A CN112662223A (en) | 2020-12-18 | 2020-12-18 | Self-antibacterial double-component water-based fluorescent paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011507571.6A CN112662223A (en) | 2020-12-18 | 2020-12-18 | Self-antibacterial double-component water-based fluorescent paint |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275334A (en) * | 2013-06-07 | 2013-09-04 | 安徽大学 | Preparation method of waterborne polyurethane containing fluorescent dye |
| CN107936819A (en) * | 2017-12-15 | 2018-04-20 | 合众（佛山）化工有限公司 | A kind of inflaming-retarding antifouling antibiotic water paint |
| CN110330622A (en) * | 2019-07-16 | 2019-10-15 | 四川轻化工大学 | Fluorescent waterborne polyurethane and preparation method thereof |
| CN110590642A (en) * | 2019-09-23 | 2019-12-20 | 大连理工大学 | Electroluminescent material with indenone as electron acceptor and its application |
-
2020
- 2020-12-18 CN CN202011507571.6A patent/CN112662223A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275334A (en) * | 2013-06-07 | 2013-09-04 | 安徽大学 | Preparation method of waterborne polyurethane containing fluorescent dye |
| CN107936819A (en) * | 2017-12-15 | 2018-04-20 | 合众（佛山）化工有限公司 | A kind of inflaming-retarding antifouling antibiotic water paint |
| CN110330622A (en) * | 2019-07-16 | 2019-10-15 | 四川轻化工大学 | Fluorescent waterborne polyurethane and preparation method thereof |
| CN110590642A (en) * | 2019-09-23 | 2019-12-20 | 大连理工大学 | Electroluminescent material with indenone as electron acceptor and its application |
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Application publication date: 20210416 |