CN112646154A - Triplecene derivative modified waterborne alkyd resin and preparation method thereof - Google Patents
Triplecene derivative modified waterborne alkyd resin and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/46—Polyesters chemically modified by esterification
- C08G63/48—Polyesters chemically modified by esterification by unsaturated higher fatty oils or their acids; by resin acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
Abstract
The invention relates to a triptycene derivative modified waterborne alkyd resin and a preparation method thereof, wherein the triptycene derivative modified waterborne alkyd resin comprises the following components: vegetable oleic acid, triptycene derivatives, carboxylated polyvinyl alcohol, polybasic acid, polyhydric alcohol, tartaric acid, dimethylbenzene, 2-hydroxy chalcone, benzoic acid, dimethylolpropionic acid, mixed liquor, a neutralizer and deionized water; the triptycene derivative modified waterborne alkyd resin prepared by the invention is characterized in that the triptycene derivative is connected with the alkyd resin through a chemical bond, so that the triptycene derivative modified waterborne alkyd resin is stable in structure, not easy to separate and durable in performance; meanwhile, the triptycene derivative contains a Schiff base structure, has good sterilization and antibacterial properties, and does not need an additional antibacterial agent when being prepared into an antibacterial coating; and the coating has good adsorption capacity, strong water resistance, good fullness and strong corrosion resistance, can be used for water-based building coatings, water-based wood coatings, water-based industrial coatings and the like, and has great application potential.
Description
Technical Field
The invention relates to a modified alkyd resin, in particular to a triptycene derivative modified waterborne alkyd resin and a preparation method thereof, belonging to the technical field of waterborne functional resin synthesis.
Background
The alkyd resin is a synthetic resin which is widely applied in paint, and is one of the most widely applied synthetic resins in China at present. It has low cost, simple construction, rich material source, low acid value, and is suitable for surface coating of all kinds of timber and metal and has excellent wetting and dispersing performance to pigment, stuffing, etc. The paint prepared by the paint has bright paint film, strong adhesive force, good durability, excellent flexibility, luster and fullness, and can be modified to prepare alkyd resin paints with different performances.
At present, the consumption of paving materials, floors, wallpaper and the like is increasing day by day. Most of the interior materials such as paving materials, floors, wallpaper and the like contain organic volatile matters. Triptycene and derivatives thereof are a class of compounds with unique three-dimensional rigid structures that have received much attention over the past 20 years and have found widespread use in many areas including molecular machines, material chemistry, and supramolecular chemistry. The reticular polymer material can be prepared by utilizing rich reaction sites and derivative sites of triptycene, and the reticular polymer with micropores has wide application in the fields of gas adsorption, hydrogen storage, gas separation and the like due to the characteristics of amorphous structure, high stability, organic micropores and the like. However, the self-prepared microporous polymer with the network structure is difficult to dissolve in common solvents and is easy to age, thereby greatly limiting the popularization and application of the material.
Disclosure of Invention
In order to solve the technical problems, the triptycene derivative is connected with the alkyd resin through a chemical bond, so that the triptycene derivative is stable in structure and durable in performance.
The triptycene has a unique three-dimensional rigid structure and is composed of 3 benzene rings through bridging carbon atoms, wherein the included angle between each benzene ring is 120 degrees, the compound has 3 open electron-rich cavities, the three-dimensional rigid structure of the triptycene can prevent aggregation inside a polymer, so that the polymer has good solubility, and the introduction of the triptycene structure can also improve the ordering of molecular arrangement of the material and the spatial extensibility.
The first purpose of the invention is to provide a triptycene derivative modified waterborne alkyd resin.
The second purpose of the invention is to provide a preparation method of triptycene derivative modified waterborne alkyd resin.
In order to realize the first purpose of the invention, the invention adopts the following technical scheme: the invention relates to a triptycene derivative modified waterborne alkyd resin which comprises the following components in parts by weight: 100.0-200.0 parts of vegetable oleic acid, 20.0-45.0 parts of triptycene derivative, 15.0-35.0 parts of carboxylated polyvinyl alcohol, 80.0-175.0 parts of polybasic acid, 100.0-220.0 parts of polyalcohol, 5.0-20.0 parts of tartaric acid, 40.0-100.0 parts of xylene, 25.0-75.0 parts of 2-hydroxy chalcone, 10.0-25.0 parts of benzoic acid, 12.0-30.0 parts of dimethylolpropionic acid, 24.0-56.0 parts of mixed solution, 18.0-40.0 parts of neutralizing agent and 450.0-1000.0 parts of deionized water.
Wherein the triptycene derivative is prepared by reacting 2,6, 14-triaminotriptycene with hydroxycitronellal.
The vegetable oil acid is one or a combination of more of refined linseed oil, refined castor oil, soybean oil, coconut oil, cottonseed oil and tall oil.
The polybasic acid is one or a combination of more of phthalic anhydride, hexahydrophthalic anhydride, acetic anhydride, maleic anhydride, sebacic acid, terephthalic acid, isophthalic acid, cyclopentane-1, 2-dicarboxylic acid, adipic acid and azelaic acid.
The mixed solution is the combination of propylene glycol butyl ether and propylene glycol methyl ether acetate; preferably, the mass ratio is 1: 1.
The polyhydric alcohol is one or a combination of more of sorbitol, neopentyl glycol, propylene glycol, diethylene glycol, trimethylolpropane, glycerol and pentaerythritol.
The neutralizing agent is at least one of triethylamine, ammonia water and dimethylethanolamine.
In order to achieve the second object of the present invention, the following method is adopted, and the present invention provides a preparation method of triptycene derivative modified waterborne alkyd resin, which comprises the following steps:
a) adding vegetable oleic acid and polyalcohol into a reactor according to the weight part of the formula, heating and vacuum dehydrating;
b) adding polybasic acid, dimethylolpropionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivative and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing dimethylbenzene in vacuum, recovering dimethylbenzene, adding the mixed solution, stirring and dispersing uniformly, reducing viscosity, cooling, adding a neutralizing agent, dispersing uniformly, adding deionized water with the formula amount, continuously stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin.
The preparation method of the triptycene derivative comprises the following steps:
adding 2,6, 14-triaminotriptycene and a proper amount of ethanol into a reaction kettle according to the formula ratio (the molar ratio of 2,6, 14-triaminotriptycene to hydroxycitronellal is 1:3), heating to 85-88 ℃, and uniformly stirring; and in addition, weighing hydroxycitronellal according to the formula amount, slowly adding the hydroxycitronellal into the reaction kettle, adding a small amount of glacial acetic acid, continuously performing reflux reaction for 10.0-12.0 h, cooling and standing overnight, recrystallizing, and drying in vacuum to obtain the triptycene derivative.
The triptycene derivative modified waterborne alkyd resin prepared by the invention has the following advantages:
1) the triptycene derivative modified waterborne alkyd resin prepared by the invention is characterized in that the triptycene derivative is connected with the alkyd resin through a chemical bond, so that the triptycene derivative modified waterborne alkyd resin is stable in structure, not easy to separate and durable in performance;
2) meanwhile, the triptycene derivative contains a Schiff base structure, has good sterilization and antibacterial properties, and does not need an additional antibacterial agent when being prepared into an antibacterial coating;
3) the triptycene derivative modified waterborne alkyd resin prepared by the invention has good adsorption capacity, strong water resistance, good fullness, strong corrosion resistance and certain antibacterial property, can be used for waterborne architectural coatings, waterborne wood coatings, waterborne industrial coatings and the like, and has very great application potential.
Detailed Description
The preparation of the tripdiolene derivative-modified waterborne alkyd resins is further described with reference to the following examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
A triptycene derivative modified waterborne alkyd resin comprises the following components in parts by weight: 100.0-200.0 parts of vegetable oleic acid, 20.0-45.0 parts of triptycene derivative, 15.0-35.0 parts of carboxylated polyvinyl alcohol, 80.0-175.0 parts of polybasic acid, 100.0-220.0 parts of polyalcohol, 5.0-20.0 parts of tartaric acid, 40.0-100.0 parts of xylene, 25.0-75.0 parts of 2-hydroxy chalcone, 10.0-25.0 parts of benzoic acid, 12.0-30.0 parts of dimethylolpropionic acid, 24.0-56.0 parts of mixed solution, 18.0-40.0 parts of neutralizing agent and 450.0-1000.0 parts of deionized water.
As a further embodiment, the triptycene derivative is prepared by reacting 2,6, 14-triaminotriptycene with hydroxycitronellal.
As a further embodiment, the vegetable oil acid is one or a combination of more of refined linseed oil, refined castor oil, soybean oil, coconut oil, cottonseed oil and tall oil.
As a further embodiment, the polybasic acid is one or a combination of more of phthalic anhydride, hexahydrophthalic anhydride, acetic anhydride, maleic anhydride, sebacic acid, terephthalic acid, isophthalic acid, cyclopentane-1, 2-dicarboxylic acid, adipic acid, and azelaic acid.
In a further embodiment, the mixed solution is a combination of propylene glycol butyl ether and propylene glycol methyl ether acetate; preferably, the mass ratio is 1: 1.
As a further embodiment, the polyhydric alcohol is one or a combination of more of sorbitol, neopentyl glycol, propylene glycol, diethylene glycol, trimethylolpropane, glycerol and pentaerythritol.
In a further embodiment, the neutralizing agent is at least one of triethylamine, ammonia water, and dimethylethanolamine.
The triptycene derivative modified waterborne alkyd resin comprises the following steps:
a) adding vegetable oleic acid and polyalcohol into a reactor according to the weight part of the formula, heating and vacuum dehydrating;
b) adding polybasic acid, dimethylolpropionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivative and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing dimethylbenzene in vacuum, recovering dimethylbenzene, adding the mixed solution, stirring and dispersing uniformly, reducing viscosity, cooling, adding a neutralizing agent, dispersing uniformly, adding deionized water with the formula amount, continuously stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin.
The following are specific examples of the present invention, and raw materials, equipments and the like used in the following examples can be obtained by purchasing them unless otherwise specified.
Example 1
A triptycene derivative modified waterborne alkyd resin comprises the following components in parts by weight: 140.0 parts of refined castor oil, 38.0 parts of triptycene derivative, 18.0 parts of carboxylated polyvinyl alcohol, 143.0 parts of hexahydrophthalic anhydride, 60.0 parts of pentaerythritol, 80.0 parts of neopentyl glycol, 12.0 parts of tartaric acid, 65 parts of xylene, 45.0 parts of 2-hydroxychalcone, 18.0 parts of benzoic acid, 15.0 parts of dimethylolpropionic acid, 20.0 parts of propylene glycol butyl ether, 20.0 parts of propylene glycol methyl ether acetate, 16.0 parts of triethylamine and 810.0 parts of deionized water.
The preparation method of the triptycene derivative modified waterborne alkyd resin in the embodiment comprises the following steps:
a) adding refined castor oil, pentaerythritol and neopentyl glycol in the weight portions of the formula into a reactor, heating and vacuum dehydrating;
b) adding hexahydrophthalic anhydride, dimethylol propionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivatives and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing dimethylbenzene in vacuum, recovering dimethylbenzene, then adding propylene glycol butyl ether and propylene glycol methyl ether acetate, stirring and dispersing uniformly, reducing viscosity, cooling, adding triethylamine, dispersing uniformly, adding deionized water with the formula amount, continuing stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin, wherein the sample is marked as sample 1.
Example 2
A triptycene derivative modified waterborne alkyd resin comprises the following components in parts by weight: 150.0 parts of soybean oil, 35.0 parts of triptycene derivative, 24.0 parts of carboxylated polyvinyl alcohol, 70.0 parts of acetic anhydride, 65.0 parts of terephthalic acid, 48.0 parts of trimethylolpropane, 70.0 parts of propylene glycol, 15.0 parts of tartaric acid, 68.0 parts of xylene, 60.0 parts of 2-hydroxychalcone, 18.0 parts of benzoic acid, 20.0 parts of dimethylolpropionic acid, 22.0 parts of propylene glycol butyl ether, 22.0 parts of propylene glycol methyl ether acetate, 15.0 parts of ammonia water and 790.0 parts of deionized water.
The preparation method of the triptycene derivative modified waterborne alkyd resin in the embodiment comprises the following steps:
a) adding soybean oil, trimethylolpropane and propylene glycol in the weight portions of the formula into a reactor, heating and vacuum dehydrating;
b) adding acetic anhydride, terephthalic acid, dimethylolpropionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivative and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing dimethylbenzene in vacuum, recovering dimethylbenzene, then adding propylene glycol butyl ether and propylene glycol methyl ether acetate, stirring and dispersing uniformly, reducing viscosity, cooling, adding ammonia water, dispersing uniformly, adding deionized water with the formula amount, continuing stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin, wherein the sample is marked as sample 2.
Example 3
A triptycene derivative modified waterborne alkyd resin comprises the following components in parts by weight: 135.0 parts of refined linseed oil, 30.0 parts of triptycene derivative, 30.0 parts of carboxylated polyvinyl alcohol, 75.0 parts of phthalic anhydride, 35.0 parts of cyclopentane-1, 2-dicarboxylic acid, 20.0 parts of diethylene glycol, 125.0 parts of trimethylolpropane, 12.0 parts of tartaric acid, 68.0 parts of xylene, 40.0 parts of 2-hydroxychalcone, 14.0 parts of benzoic acid, 16.0 parts of dimethylolpropionic acid, 21.0 parts of propylene glycol butyl ether, 21.0 parts of propylene glycol methyl ether acetate, 17.0 parts of triethylamine and 720.0 parts of deionized water.
The preparation method of the triptycene derivative modified waterborne alkyd resin in the embodiment comprises the following steps:
a) adding refined linseed oil, diethylene glycol and trimethylolpropane in a reactor according to the weight part of the formula, heating and vacuum dehydrating;
b) adding phthalic anhydride, cyclopentane-1, 2-dicarboxylic acid, dimethylolpropionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivative and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing xylene in vacuum, recovering xylene, adding propylene glycol butyl ether and propylene glycol methyl ether acetate, stirring and dispersing uniformly, reducing viscosity, cooling, adding triethylamine, dispersing uniformly, adding deionized water with the formula amount, continuing stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin, wherein the sample is marked as sample 3.
And (3) testing performance indexes: samples 1, 2 and 3 of the above examples were mixed with a conventional waterborne alkyd resin 4 (comparative example 1) to prepare coatings according to the raw material formulation shown in Table 1, and the corresponding coating samples were respectively designated as coating 1, coating 2, coating 3 and coating 4, and the properties thereof were respectively tested.
Table 1: coating formulation
| Name of raw materials | Specification of | Amount/% of |
| Water (W) | Deionized water | 10 |
| Multifunctional auxiliary agent | AMP-95 | 0.3 |
| Aqueous resin | Sample resins | 89.0 |
| Thickening and leveling agent | SN-612 | 0.3 |
| Defoaming agent | NXZ | 0.2 |
| Wetting agent | Pe100 | 0.2 |
The prepared coating is tested for performance indexes according to relevant standards, and the test results are shown in table 2.
Wherein, filiform corrosion: detecting according to the regulation of (GB/T13452.4-92);
adhesion force: the test was carried out using the cross-cut method, as specified in GB/T1720-1988;
hardness: detecting according to the regulation of GB/T6739-2006;
water resistance: detecting according to the regulation of GB/T1733-93;
salt spray resistance: detecting according to the regulation of GB/T1771-1991;
and (3) antibacterial property: the detection is carried out according to the regulation of HG/T3950-2007 antimicrobial paint.
Table 2: performance specification of coating
It can be seen from table 2 that the adhesion, salt spray resistance, filiform corrosion resistance, water resistance and the like of the samples of examples 1, 2 and 3 are better than those of the conventional waterborne alkyd resin, and the antibacterial property of the coating of the samples of examples of the invention is more than 99.5%, while the antibacterial property of the conventional waterborne alkyd resin is only 32.52%, which shows that the triptycene derivative modified waterborne alkyd resin of the invention has good antibacterial property.
And (3) testing the adsorption performance:
for 2 newly-decorated experimental houses with the same size, each house is 50m2Initially measured formaldehyde concentration was 2.38mg/m3The concentration of benzene was 1.68mg/m3The concentration of carbon monoxide is 42.6mg/m3The concentration of ammonia is 1.02mg/m3Coating 1 of the present invention (for example) and a commercially available coating were applied separately, and air quality inspection was performed after sealing for 48 hours:
experimental house coated with inventive sample coating 1 (example):
the concentration of formaldehyde is 0.02mg/m3The concentration of benzene was 0.03mg/m3The concentration of carbon monoxide is 5.21mg/m3The concentration of ammonia was 0.04mg/m3。
Experimental house coated with commercial coating:
the concentration of formaldehyde is 0.98mg/m3The concentration of benzene was 0.92mg/m3The concentration of carbon monoxide is 17.2mg/m3The concentration of ammonia is 0.45mg/m3。
Although the present invention has been described in detail and with reference to exemplary embodiments thereof, it will be apparent to one skilled in the art that various changes, modifications and variations can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A triptycene derivative modified waterborne alkyd resin is characterized in that: the composition comprises the following components in parts by weight: 100.0-200.0 parts of vegetable oleic acid, 20.0-45.0 parts of triptycene derivative, 15.0-35.0 parts of carboxylated polyvinyl alcohol, 80.0-175.0 parts of polybasic acid, 100.0-220.0 parts of polyalcohol, 5.0-20.0 parts of tartaric acid, 40.0-100.0 parts of xylene, 25.0-75.0 parts of 2-hydroxy chalcone, 10.0-25.0 parts of benzoic acid, 12.0-30.0 parts of dimethylolpropionic acid, 24.0-56.0 parts of mixed solution, 18.0-40.0 parts of neutralizing agent and 450.0-1000.0 parts of deionized water;
wherein the triptycene derivative is prepared by reacting 2,6, 14-triaminotriptycene with hydroxycitronellal.
2. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the vegetable oil acid is one or a combination of more of refined linseed oil, refined castor oil, soybean oil, coconut oil, cottonseed oil and tall oil.
3. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the polybasic acid is one or a combination of more of phthalic anhydride, hexahydrophthalic anhydride, acetic anhydride, maleic anhydride, sebacic acid, terephthalic acid, isophthalic acid, cyclopentane-1, 2-dicarboxylic acid, adipic acid and azelaic acid.
4. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the mixed solution is the combination of propylene glycol butyl ether and propylene glycol methyl ether acetate; preferably, the mass ratio is 1: 1.
5. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the polyhydric alcohol is one or a combination of more of sorbitol, neopentyl glycol, propylene glycol, diethylene glycol, trimethylolpropane, glycerol and pentaerythritol.
6. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the neutralizing agent is at least one of triethylamine, ammonia water and dimethylethanolamine.
7. The triptycene derivative-modified waterborne alkyd resin of claim 1, wherein: the preparation method comprises the following steps:
a) adding vegetable oleic acid and polyalcohol into a reactor according to the weight part of the formula, heating and vacuum dehydrating;
b) adding polybasic acid, dimethylolpropionic acid, tartaric acid, 2-hydroxy chalcone, carboxylated polyvinyl alcohol, triptycene derivative and xylene, and heating for dissolving;
c) introducing nitrogen for protection after stirring at low speed, wherein the introduction flow of the nitrogen needs to be moderate, and removing free water and oxygen in the reactor;
d) heating to 166-172 ℃, carrying out heat preservation stirring reaction for 2.0h, adding benzoic acid to carry out partial end capping and molecular weight control, heating to 180 ℃, carrying out heat preservation reaction for 2.0h, heating to 210-225 ℃ at the speed of 24 ℃/h, carrying out heat preservation reaction for 2.0h, measuring the acid value every 20min, and when the acid value reaches the design value (water generated in the reaction generation process at the stage is timely separated out by a water separator);
e) stopping reaction, cooling, removing dimethylbenzene in vacuum, recovering dimethylbenzene, adding the mixed solution, stirring and dispersing uniformly, reducing viscosity, cooling, adding a neutralizing agent, dispersing uniformly, adding deionized water with the formula amount, continuously stirring and dispersing uniformly, and filtering to obtain the triptycene derivative modified waterborne alkyd resin.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113999380A (en) * | 2021-11-23 | 2022-02-01 | 合众（佛山）化工有限公司 | Hydrogenated terpineol modified waterborne alkyd resin and preparation method thereof |
| CN114044887A (en) * | 2021-12-09 | 2022-02-15 | 合众（佛山）化工有限公司 | Hyperbranched hydroxypropyl distarch phosphate modified waterborne alkyd resin and preparation method thereof |
| CN114163624A (en) * | 2021-12-02 | 2022-03-11 | 合众（佛山）化工有限公司 | Hydroxyl porphyrin derivative-containing modified waterborne alkyd resin and preparation method thereof |
| CN114181597A (en) * | 2021-12-02 | 2022-03-15 | 合众（佛山）化工有限公司 | Self-antibacterial alkyd resin water-based anticorrosive paint |
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| CN113999380A (en) * | 2021-11-23 | 2022-02-01 | 合众（佛山）化工有限公司 | Hydrogenated terpineol modified waterborne alkyd resin and preparation method thereof |
| CN114163624A (en) * | 2021-12-02 | 2022-03-11 | 合众（佛山）化工有限公司 | Hydroxyl porphyrin derivative-containing modified waterborne alkyd resin and preparation method thereof |
| CN114181597A (en) * | 2021-12-02 | 2022-03-15 | 合众（佛山）化工有限公司 | Self-antibacterial alkyd resin water-based anticorrosive paint |
| CN114044887A (en) * | 2021-12-09 | 2022-02-15 | 合众（佛山）化工有限公司 | Hyperbranched hydroxypropyl distarch phosphate modified waterborne alkyd resin and preparation method thereof |
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