CN110577784A - Rare earth modified acrylic acid copolymer waterborne alkyd resin coating - Google Patents
Rare earth modified acrylic acid copolymer waterborne alkyd resin coating Download PDFInfo
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Abstract
The invention relates to a rare earth modified acrylic acid copolymer waterborne alkyd resin coating which comprises the following components in parts by weight: 40.0-65.0 parts of rare earth modified acrylic acid copolymerized water-based alkyd resin, 10.0-20.0 parts of acrylic acid modified water-based alkyd resin, 0-30.0 parts of filler, 3.0-8.0 parts of nano bimetallic oxide, 0-15 parts of colorant, 3.0-7.0 parts of film-forming additive, 0.2-0.5 part of flatting agent, 0.1-1.2 parts of dispersing agent, 0.2-0.6 part of wetting agent, 0.1-0.5 part of defoaming agent, 0.2-1.0 part of thickening anti-settling agent, 0.2-1.0 part of pH regulator and 10.0-30.0 parts of deionized water; the rare earth modified acrylic acid copolymer waterborne alkyd resin coating prepared by the invention combines the characteristics of acrylic acid copolymer waterborne alkyd resin and rare earth ions, has good adhesive force and water resistance, does not need an additional anticorrosive agent and a luminescent agent, and has good anticorrosive property and luminescence property.
Description
Technical Field
The invention relates to a water-based paint, in particular to a rare earth modified acrylic acid copolymerized water-based alkyd resin paint, belonging to the technical field of water-based functional paints.
Background
The water paint is a novel paint with low pollution, energy and resource conservation developed in the 60 s of the 20 th century. The water paint has less environmental pollution because the organic solvent is replaced with water completely or mostly. With the enhancement of environmental awareness and the rising of the cost of organic solvents, water-based coatings are increasingly paid attention to and widely researched and popularized.
The water-based alkyd resin coating takes vegetable oil fatty acid as a main raw material and water as a solvent, has very good wettability with a substrate, and is widely applied to various fields. However, the molecular structure of the alkyd resin contains more ester groups, and the ester bonds in the main chain of the alkyd resin are easy to hydrolyze and have poor storage stability, so that the viscosity of a coating product is inevitably reduced, the water resistance is poor, and the comprehensive performance of a coating film is poor. Therefore, improvement in performance is required to satisfy the functional requirements. The alkyd resin coating modified by the acrylic resin has the advantages of both the acrylic resin and the alkyd resin, and the hardness and the water resistance of a paint film are greatly improved. But it is difficult to meet the requirements of special fields.
Chinese patent CN104403530A discloses a coating with acrylic modified alkyd resin. The weight ratio of the components is as follows: 15-17% of wax ester, 10-16% of epoxy resin, 20-30% of acrylic acid modified alkyd resin, 12-16% of palm olein ester, 5-8% of methacrylic resin, 1-3% of semi-matte acrylic pigment, 3-6% of photoinitiator, 5-10% of polyvinyl butyral, 2-4% of polyether modified organic silicon defoamer, 2-4% of dispersant and the balance of thinner; chinese patent CN105602388A discloses an alkyd resin modified acrylic acid anticorrosive paint with a core-shell structure and a preparation method thereof. The anticorrosive paint is prepared from the following components in parts by weight: 40-50 parts of water-based alkyd resin, 45-63 parts of reaction monomer, 15-20 parts of pigment, 64-131 parts of deionized water, 1-2 parts of defoaming agent and 0.12-0.38 part of initiator. Said invention has a certain limitation, and its radiation-proof, corrosion-resisting and hydrolysis-resisting properties are poor.
Chinese patent CN109337536A discloses a water-based acrylic acid-alkyd paint and a preparation method thereof, wherein the paint comprises the following components in parts by weight: 30.0-40.0 parts of water-based alkyd resin, 0.5-0.8 part of dispersing agent, 0.1-0.3 part of bentonite, 6.0-10.0 parts of iron oxide red, 3.5-5.5 parts of talcum powder, 7.5-12.5 parts of precipitated barium sulfate, 5.0-10.0 parts of cosolvent, 1.2-1.5 parts of ammonia water, 1.0-1.3 parts of drier, 0.1-0.3 part of defoaming agent, 0.1-0.2 part of flatting agent, 18-22 parts of acrylic emulsion, 5-10 parts of deionized water and 3-6 parts of thickening agent. The alkyd emulsion integrates the advantages of high gloss and good permeability to wood and other substrates of the alkyd emulsion and the advantages of quick drying, good gloss retention and color retention of the acrylic emulsion, and overcomes the defects of slow drying of the alkyd emulsion and the like. However, the aqueous alkyd resin has the problems of compatibility and the like with acrylic emulsion, and has poor storage stability.
therefore, it is very important to develop a multifunctional modified acrylic acid copolymerized waterborne alkyd resin coating with good performance.
Disclosure of Invention
The invention overcomes the defects of an additional preservative, a luminescent material and the like, adopts the rare earth modified acrylic acid copolymerized waterborne alkyd resin as a main base material, has no small molecular emulsifier in the rare earth modified acrylic acid copolymerized waterborne alkyd resin, has good water resistance, and simultaneously has good corrosion resistance and luminescent property.
The invention aims to provide a rare earth modified acrylic acid copolymer waterborne alkyd resin coating.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention relates to a rare earth modified acrylic acid copolymer waterborne alkyd resin coating which comprises the following components in parts by weight: 40.0-65.0 parts of rare earth modified acrylic acid copolymerized water-based alkyd resin, 10.0-20.0 parts of acrylic acid modified water-based alkyd resin, 0-30.0 parts of filler, 3.0-8.0 parts of nano bimetallic oxide, 0-15 parts of colorant, 3.0-7.0 parts of film-forming additive, 0.2-0.5 part of flatting agent, 0.1-1.2 parts of dispersing agent, 0.2-0.6 part of wetting agent, 0.1-0.5 part of defoaming agent, 0.2-1.0 part of thickening anti-settling agent, 0.2-1.0 part of pH regulator and 10.0-30.0 parts of deionized water.
wherein, the filler is one or a combination of more of dolomite powder, fibrous talcum powder, white carbon black, barium sulfate, calcium carbonate, wollastonite, nano graphite and diatomite.
The colorant is one or a combination of more of titanium dioxide, pearlescent pigment, multi-angle effect pigment and water-based color paste.
The leveling agent is one or a combination of a plurality of polyacrylate leveling agents and fluorine surfactants.
The dispersant is one or a combination of a plurality of polyacrylic acid derivatives, polycarboxylic acid derivatives, polyether derivatives, maleic anhydride-styrene copolymers and derivatives high molecular polymer dispersants.
The wetting agent is one or a combination of a plurality of polyoxyethylene alkyl ether and acetylene glycol polymers.
The defoaming agent is one or a combination of a plurality of polyether defoaming agent and mineral oil defoaming agent.
The thickening anti-settling agent is one or a combination of more of an associative polyurethane thickening agent, hydroxyethyl cellulose and polyvinyl polypyrrolidone.
the pH regulator is one or a combination of more of AMP-95, sodium carbonate, sodium bicarbonate and N, N-dimethylethanolamine.
The rare earth modified acrylic acid copolymer waterborne alkyd resin comprises the following components in parts by weight: 8.0-15.0 parts of acrylic acid soft monomer, 12.0-25.0 parts of acrylic acid hard monomer, 4.0-8.0 parts of cross-linking agent monomer, 2.5-5.0 parts of silane coupling agent, 4.5-8.0 parts of maleic anhydride, 8.5-20.0 parts of unsaturated vegetable oleic acid, 8.0-16.0 parts of organic anhydride, 10.0-30.0 parts of polyhydric alcohol, 3.0-8.0 parts of 1, 10-phenanthroline-5-formic acid, 0.8-2.0 parts of rare earth ethanol solution, 0.4-1.2 parts of sodium ethoxide ethanol solution, 6.0-12.0 parts of dimethylbenzene, 0.4-0.8 part of initiator, 3.0-5.0 parts of neutralizer and 60.0-120.0 parts of deionized water.
The unsaturated vegetable oleic acid is one or a combination of more of dehydrated erucic acid, dehydrated eleostearic acid and dehydrated castor oil.
The organic acid anhydride is one or a combination of more of acetic anhydride, maleic anhydride, adipic acid, succinic acid and sebacic acid.
The polyhydric alcohol is one or a combination of more of propylene glycol, 1, 4-butanediol, neopentyl glycol, dipropylene glycol, trimethylolpropane, glycerol and pentaerythritol.
The rare earth ethanol solution has the molar concentration of 0.1 mol.L-1The yttrium ethanol solution, the europium ethanol solution, the terbium ethanol solution and the holmium ethanol solution or a combination of a plurality of the yttrium ethanol solution, the europium ethanol solution, the terbium ethanol solution and the holmium ethanol solution.
The neutralizing agent is at least one of triethylamine, ammonia water and dimethylethanolamine.
The acrylic acid hard monomer is one or a combination of methyl methacrylate, isobornyl methacrylate and isobornyl methacrylate.
The acrylic acid soft monomer is one or a combination of more of butyl methacrylate, isooctyl methacrylate, cyclohexyl methacrylate, lauryl methacrylate and stearyl methacrylate.
The cross-linking agent monomer is one or a combination of hydroxyethyl methacrylate and hydroxypropyl methacrylate.
The initiator is one or a combination of more of ammonium persulfate, potassium persulfate or sodium persulfate.
The rare earth ethanol solution is prepared by the following steps:
Accurately weighing rare earth oxide according to the formula amount in a 100 mL beaker, adding a little distilled water and stirring, then slowly dropwise adding a certain amount of concentrated nitric acid under the condition of heating and stirring, and after the solid is completely dissolved, raising the temperature to 85 ℃ to evaporate residual nitric acidConcentrating nitric acid until the solution in the beaker is oily, adding appropriate amount of anhydrous ethanol, stirring at room temperature for 0.5h, transferring to 200 mL volumetric flask, and adding anhydrous ethanol to desired volume to obtain 0.1 mol.L-1the rare earth ethanol solution of (1).
The preparation method of the rare earth modified acrylic acid copolymerized waterborne alkyd resin comprises the following steps:
a) Adding unsaturated vegetable oleic acid, organic anhydride, polyalcohol and dimethylbenzene in a multifunctional reaction kettle according to the weight part of the formula in turn, and introducing N under the condition of low-speed stirring2Heating to 110-120 ℃ to remove free water in the raw materials, heating to 170-180 ℃, fully stirring until the materials are dissolved, stirring at a rotating speed of 300-400 r/min for heat preservation reaction for 1.5h, then heating to 190 ℃ at a speed of 20 ℃/h for heat preservation reaction for 1h, heating to 210-220 ℃ at a speed of 20 ℃/h for heat preservation reaction for 3.0-3.5 h, measuring the acid value until the acid value is consistent with the designed value, and separating water generated by the reaction by using a water separator;
b) Cooling to 180 ℃, adding maleic anhydride and 1, 10-phenanthroline-5-formic acid, stirring and reacting for 1.5-2.0 h, then heating to 205-210 ℃ at a speed of 20 ℃/h, preserving heat and reacting for 2.0-3.0 h, measuring an acid value every 15-30 min, cooling to 160 ℃ when the acid value reaches a theoretical design value, starting vacuum evaporation to remove a solvent xylene, cooling to below 50 ℃, adding a neutralizing agent, quickly stirring and uniformly dispersing, adding a proper amount of deionized water, and stirring and uniformly dispersing at a high speed to obtain a water-based alkyd resin intermediate;
c) Weighing the components according to a formula ratio, sequentially adding an acrylic acid soft monomer, an acrylic acid hard monomer, a silane coupling agent, a cross-linking agent monomer and an initiator into a metering tank G1, and uniformly stirring to obtain a mixed solution I;
d) Adding the aqueous alkyd resin intermediate into a reaction kettle, heating to 78-80 ℃ at a stirring speed of 200r/min, slowly and uniformly dripping the mixed solution I, controlling the dripping time to be 3.0-3.5 h, keeping the temperature at 80-82 ℃ for 2.0-2.5 h after finishing dripping, and obtaining the acrylic acid copolymerization aqueous alkyd resin intermediate after finishing reaction;
e) Adding the acrylic acid copolymerization waterborne alkyd resin intermediate into a reaction kettle, heating to 60-65 ℃, then dropwise adding a rare earth ethanol solution, stirring and reacting for 0.5h, slowly adjusting the pH value of the solution to 7.0-7.5 by using a sodium ethoxide ethanol solution, continuously reacting for 2.5-3.0 h, stopping the reaction, and filtering to obtain the rare earth modified acrylic acid copolymerization waterborne alkyd resin.
The rare earth modified acrylic acid copolymer waterborne alkyd resin coating prepared by the invention combines the characteristics of acrylic acid copolymer waterborne alkyd resin and rare earth ions, has good adhesive force and water resistance, does not need an additional anticorrosive agent and a luminescent agent, and has good anticorrosive property and luminescence property.
Detailed Description
the present invention 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.
Example 1
A rare earth modified acrylic acid copolymerization waterborne alkyd resin X comprises the following steps:
a) Adding 11.0 parts of dehydrated erucic acid, 7.0 parts of acetic anhydride, 5.5 parts of phthalic anhydride, 14.0 parts of 1, 4-butanediol, 13.0 parts of glycerol and 9.0 parts of dimethylbenzene into a multifunctional reaction kettle according to the weight parts of the formula in turn, and introducing N into the multifunctional reaction kettle while stirring at a low speed2heating to 110-120 ℃ to remove free water in the raw materials, heating to 170-180 ℃, fully stirring until the materials are dissolved, stirring at a rotating speed of 300-400 r/min for heat preservation reaction for 1.5h, then heating to 190 ℃ at a speed of 20 ℃/h for heat preservation reaction for 1h, heating to 210-220 ℃ at a speed of 20 ℃/h for heat preservation reaction for 3.0-3.5 h, measuring the acid value until the acid value is consistent with the designed value, and separating water generated by the reaction by using a water separator;
b) Cooling to 180 ℃, adding 4.5 parts of maleic anhydride and 8.0 parts of 1, 10-phenanthroline-5-formic acid, stirring and reacting for 1.5-2.0 h, heating to 205-210 ℃ at the speed of 20 ℃/h, preserving heat and reacting for 2.0-3.0 h, measuring the acid value every 15-30 min, cooling to 160 ℃ when the acid value reaches a theoretical design value, starting vacuum evaporation to remove a solvent xylene, cooling to below 50 ℃, adding 4.5 parts of triethylamine, quickly stirring and dispersing uniformly, adding 90.0 parts of a proper amount of deionized water, and stirring and dispersing uniformly at a high speed to obtain a water-based alkyd resin intermediate;
c) Weighing 16.0 parts of isobornyl methacrylate, 12.0 parts of lauryl methacrylate, 4.0 parts of silane coupling agent, 4.5 parts of hydroxypropyl methacrylate and 0.7 part of ammonium persulfate according to the proportion of the formula, sequentially adding into a metering tank G1, and uniformly stirring to obtain a mixed solution I;
d) Adding the aqueous alkyd resin intermediate into a reaction kettle, heating to 78-80 ℃ at a stirring speed of 200r/min, slowly and uniformly dripping the mixed solution I, controlling the dripping time to be 3.0-3.5 h, keeping the temperature at 80-82 ℃ for 2.0-2.5 h after finishing dripping, and obtaining the acrylic acid copolymerization aqueous alkyd resin intermediate after finishing reaction;
e) Adding the acrylic acid copolymerization waterborne alkyd resin intermediate into a reaction kettle, heating to 60-65 ℃, then dropwise adding 1.6 parts of terbium ethanol solution, stirring and reacting for 0.5h, slowly adjusting the pH value of the solution to 7.0-7.5 by using 0.8 part of sodium ethoxide ethanol solution, continuing to react for 2.5-3.0 h, stopping the reaction, and filtering to obtain the rare earth modified acrylic acid copolymerization waterborne alkyd resin X.
Example 2
a rare earth modified acrylic acid copolymerization waterborne alkyd resin Y comprises the following steps:
a) Adding 10.0 parts of dehydrated castor oil, 6.0 parts of succinic acid, 6.5 parts of phthalic anhydride, 10.0 parts of 1, 4-butanediol, 12.0 parts of pentaerythritol and 10.0 parts of dimethylbenzene into a multifunctional reaction kettle according to the weight parts of the formula in sequence, and introducing N under low-speed stirring2heating to 110-120 ℃ to remove free water in the raw materials, heating to 170-180 ℃, fully stirring until the materials are dissolved, stirring at a rotating speed of 300-400 r/min for heat preservation reaction for 1.5h, then heating to 190 ℃ at a speed of 20 ℃/h for heat preservation reaction for 1h, heating to 210-220 ℃ at a speed of 20 ℃/h for heat preservation reaction for 3.0-3.5 h, measuring the acid value until the acid value is consistent with the designed value, and separating water generated by the reaction by using a water separator;
b) Cooling to 180 ℃, adding 5.5 parts of maleic anhydride and 6.0 parts of 1, 10-phenanthroline-5-formic acid, stirring and reacting for 1.5-2.0 h, heating to 205-210 ℃ at the speed of 20 ℃/h, preserving heat and reacting for 2.0-3.0 h, measuring the acid value every 15-30 min, cooling to 160 ℃ when the acid value reaches a theoretical design value, starting vacuum evaporation to remove a solvent xylene, cooling to below 50 ℃, adding 4.8 parts of triethylamine, quickly stirring and dispersing uniformly, adding 92.0 parts of a proper amount of deionized water, and stirring and dispersing uniformly at a high speed to obtain a water-based alkyd resin intermediate;
c) Weighing 20.0 parts of isobornyl methacrylate, 13.0 parts of octadecyl methacrylate, 3.5 parts of silane coupling agent, 5.5 parts of hydroxypropyl methacrylate and 0.8 part of ammonium persulfate according to the proportion of the formula, sequentially adding into a metering tank G1, and uniformly stirring to obtain a mixed solution I;
d) Adding the aqueous alkyd resin intermediate into a reaction kettle, heating to 78-80 ℃ at a stirring speed of 200r/min, slowly and uniformly dripping the mixed solution I, controlling the dripping time to be 3.0-3.5 h, keeping the temperature at 80-82 ℃ for 2.0-2.5 h after finishing dripping, and obtaining the acrylic acid copolymerization aqueous alkyd resin intermediate after finishing reaction;
e) Adding the acrylic acid copolymerization waterborne alkyd resin intermediate into a reaction kettle, heating to 60-65 ℃, then dropwise adding 1.4 parts of holmium ethanol solution, stirring and reacting for 0.5h, slowly adjusting the pH value of the solution to 7.0-7.5 by using 0.7 part of sodium ethoxide ethanol solution, continuing to react for 2.5-3.0 h, stopping the reaction, and filtering to obtain the rare earth modified acrylic acid copolymerization waterborne alkyd resin Y.
Example 3
A rare earth modified acrylic acid copolymer waterborne alkyd resin coating comprises the following components in parts by weight: 45.0 parts of rare earth modified acrylic acid copolymer waterborne alkyd resin X, 10.0 parts of acrylic acid modified waterborne alkyd resin, 5.0 parts of dolomite powder, 10.5 parts of fibrous talcum powder, 1.0 part of nano graphite, 3.5 parts of nano bimetallic oxide, 6.0 parts of titanium dioxide, 4.0 parts of film-forming additive, 0.3 part of flatting agent, 0.8 part of dispersing agent, 0.5 part of wetting agent, 0.3 part of defoaming agent, 0.5 part of thickening anti-settling agent, 0.6 part of pH regulator and 12.0 parts of deionized water.
Example 4
a rare earth modified acrylic acid copolymer waterborne alkyd resin coating comprises the following components in parts by weight: 55.0 parts of rare earth modified acrylic acid copolymer waterborne alkyd resin Y, 20.0 parts of acrylic acid modified waterborne alkyd resin, 5.5 parts of nano bimetallic oxide, 5.5 parts of film-forming assistant, 0.3 part of flatting agent, 0.2 part of dispersing agent, 0.3 part of wetting agent, 0.2 part of defoaming agent, 0.2 part of thickening anti-settling agent, 0.3 part of pH regulator and 12.5 parts of deionized water.
According to relevant standards of water resistance (GB/T1733-1993), adhesion (GB/T9286-1998), neutral salt fog resistance (GB/T1771-2007), impact resistance (GB/T1732-1993), moist heat resistance (GB/T1740-2007), pencil hardness (GB/T6739-1996), acid resistance (GB/T1763-1979), alkali resistance (GB/1763-1979), filiform corrosion (GB/T13452.4-92) and the like, the rare earth modified acrylic acid copolymerization water-based alkyd resin coating prepared in the example and the acrylic acid modified water-based alkyd resin coating (comparative example) are compared and detected, and the technical indexes of the detection performance are shown in Table 1.
Table 1: performance technical indexes of embodiment and comparative example of the invention
| Detecting items | Example 3 | Example 4 | Comparative example |
| Hardness of pencil | 2H | 2H | HB |
| adhesion force | Level 0 | Level 0 | level 1 |
| Impact resistance | normal paint film | Normal paint film | film break |
| Resistance to salt fog | 12d normal paint film | 15d normal paint film | 5d normal paint film |
| Water resistance | 12d normal paint film | 15d normal paint film | 5d normal paint film |
| Alkali resistance (10% NaOH) | 12d normal paint film | 15d normal paint film | 5d normal paint film |
| Acid resistance (10% HCl) | 12d normal paint film | 15d normal paint film | 5d normal paint film |
| Moisture and heat resistance | Good effect | good effect | Is poor |
| Luminous performance (fluorometer detection) | Good effect | Good effect | Is free of |
| Filiform corrosion | Light and slight | Light and slight | Severe severity of disease |
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 (20)
1. A rare earth modified acrylic acid copolymer waterborne alkyd resin coating is characterized in that: the composition comprises the following components in parts by weight: 40.0-65.0 parts of rare earth modified acrylic acid copolymerized water-based alkyd resin, 10.0-20.0 parts of acrylic acid modified water-based alkyd resin, 0-30.0 parts of filler, 3.0-8.0 parts of nano bimetallic oxide, 0-15 parts of colorant, 3.0-7.0 parts of film-forming additive, 0.2-0.5 part of flatting agent, 0.1-1.2 parts of dispersing agent, 0.2-0.6 part of wetting agent, 0.1-0.5 part of defoaming agent, 0.2-1.0 part of thickening anti-settling agent, 0.2-1.0 part of pH regulator and 10.0-30.0 parts of deionized water;
The rare earth modified acrylic acid copolymerized water-based alkyd resin is prepared by reacting an acrylic acid soft monomer, an acrylic acid hard monomer, a cross-linking agent monomer, a silane coupling agent, maleic anhydride, unsaturated vegetable oleic acid, organic anhydride, polyhydric alcohol, 1, 10-phenanthroline-5-formic acid, a rare earth ethanol solution and a neutralizing agent.
2. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the filler is one or a combination of more of dolomite powder, fibrous talcum powder, white carbon black, barium sulfate, calcium carbonate, wollastonite, nano graphite and diatomite.
3. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the colorant is one or a combination of more of titanium dioxide, pearlescent pigment, multi-angle effect pigment and water-based color paste.
4. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the leveling agent is one or a combination of a plurality of polyacrylate leveling agents and fluorine surfactants.
5. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the dispersant is one or a combination of a plurality of polyacrylic acid derivatives, polycarboxylic acid derivatives, polyether derivatives, maleic anhydride-styrene copolymers and derivatives high molecular polymer dispersants.
6. the rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the wetting agent is one or a combination of a plurality of polyoxyethylene alkyl ether and acetylene glycol polymers.
7. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the defoaming agent is one or a combination of a plurality of polyether defoaming agent and mineral oil defoaming agent.
8. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the thickening anti-settling agent is one or a combination of more of an associative polyurethane thickening agent, hydroxyethyl cellulose and polyvinyl polypyrrolidone.
9. The rare earth modified acrylic acid copolymerized waterborne alkyd resin coating of claim 1, wherein: the pH regulator is one or a combination of more of AMP-95, sodium carbonate, sodium bicarbonate and N, N-dimethylethanolamine.
10. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the unsaturated vegetable oleic acid is one or a combination of more of dehydrated erucic acid, dehydrated eleostearic acid and dehydrated castor oil.
11. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the organic acid anhydride is one or a combination of more of acetic anhydride, maleic anhydride, adipic acid, succinic acid and sebacic acid.
12. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the polyhydric alcohol is one or a combination of more of propylene glycol, 1, 4-butanediol, neopentyl glycol, dipropylene glycol, trimethylolpropane, glycerol and pentaerythritol.
13. The rare earth modified acrylic acid copolymer of claim 1A waterborne alkyd resin, characterized in that: the rare earth ethanol solution has the molar concentration of 0.1 mol.L-1The yttrium ethanol solution, the europium ethanol solution, the terbium ethanol solution and the holmium ethanol solution or a combination of a plurality of the yttrium ethanol solution, the europium ethanol solution, the terbium ethanol solution and the holmium ethanol solution.
14. the rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the neutralizing agent is at least one of triethylamine, ammonia water and dimethylethanolamine.
15. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the acrylic acid hard monomer is one or a combination of methyl methacrylate, isobornyl methacrylate and isobornyl methacrylate.
16. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the acrylic acid soft monomer is one or a combination of more of butyl methacrylate, isooctyl methacrylate, cyclohexyl methacrylate, lauryl methacrylate and stearyl methacrylate.
17. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the cross-linking agent monomer is one or a combination of hydroxyethyl methacrylate and hydroxypropyl methacrylate.
18. the rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the initiator is one or a combination of more of ammonium persulfate, potassium persulfate or sodium persulfate.
19. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the preparation method of the rare earth ethanol solution comprises the following steps:
Accurately weighing rare earth oxide according to the formula amount into a 100 mL beaker, adding a little distilled water, stirring, slowly dropwise adding a certain amount of concentrated nitric acid under the condition of heating and stirring, heating to 85 ℃ after the solid is completely dissolved to remove the residual concentrated nitric acid by evaporation until the solution in the beaker is oily, adding a proper amount of absolute ethyl alcohol, continuing stirring for 0.5h under the condition of room temperature, transferring to a 200 mL volumetric flask, and fixing the volume with the absolute ethyl alcohol to obtain 0.1 mol.L-1The rare earth ethanol solution of (1).
20. The rare earth modified acrylic acid copolymerized waterborne alkyd resin of claim 1, wherein: the preparation steps are as follows:
a) adding unsaturated vegetable oleic acid, organic anhydride, polyalcohol and dimethylbenzene in a multifunctional reaction kettle according to the weight part of the formula in turn, and introducing N under the condition of low-speed stirring2Heating to 110-120 ℃ to remove free water in the raw materials, heating to 170-180 ℃, fully stirring until the materials are dissolved, stirring at a rotating speed of 300-400 r/min for heat preservation reaction for 1.5h, then heating to 190 ℃ at a speed of 20 ℃/h for heat preservation reaction for 1h, heating to 210-220 ℃ at a speed of 20 ℃/h for heat preservation reaction for 3.0-3.5 h, measuring the acid value until the acid value is consistent with the designed value, and separating water generated by the reaction by using a water separator;
b) Cooling to 180 ℃, adding maleic anhydride and 1, 10-phenanthroline-5-formic acid, stirring and reacting for 1.5-2.0 h, then heating to 205-210 ℃ at a speed of 20 ℃/h, preserving heat and reacting for 2.0-3.0 h, measuring an acid value every 15-30 min, cooling to 160 ℃ when the acid value reaches a theoretical design value, starting vacuum evaporation to remove a solvent xylene, cooling to below 50 ℃, adding a neutralizing agent, quickly stirring and uniformly dispersing, adding a proper amount of deionized water, and stirring and uniformly dispersing at a high speed to obtain a water-based alkyd resin intermediate;
c) Weighing the components according to a formula ratio, sequentially adding an acrylic acid soft monomer, an acrylic acid hard monomer, a silane coupling agent, a cross-linking agent monomer and an initiator into a metering tank G1, and uniformly stirring to obtain a mixed solution I;
d) Adding the aqueous alkyd resin intermediate into a reaction kettle, heating to 78-80 ℃ at a stirring speed of 200r/min, slowly and uniformly dripping the mixed solution I, controlling the dripping time to be 3.0-3.5 h, keeping the temperature at 80-82 ℃ for 2.0-2.5 h after finishing dripping, and obtaining the acrylic acid copolymerization aqueous alkyd resin intermediate after finishing reaction;
e) Adding the acrylic acid copolymerization waterborne alkyd resin intermediate into a reaction kettle, heating to 60-65 ℃, then dropwise adding a rare earth ethanol solution, stirring and reacting for 0.5h, slowly adjusting the pH value of the solution to 7.0-7.5 by using a sodium ethoxide ethanol solution, continuously reacting for 2.5-3.0 h, stopping the reaction, and filtering to obtain the rare earth modified acrylic acid copolymerization waterborne alkyd resin.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112625566A (en) * | 2020-12-18 | 2021-04-09 | 合众（佛山）化工有限公司 | Tripolyindenone derivative modified alkyd resin water-based paint |
| CN112960939A (en) * | 2021-02-07 | 2021-06-15 | 枣阳市锦烨节能建材有限公司 | Colored asphalt concrete and preparation method thereof |
| CN116856198A (en) * | 2023-09-04 | 2023-10-10 | 青州金昊新材料有限公司 | Paper molding waterproof agent and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112625566A (en) * | 2020-12-18 | 2021-04-09 | 合众（佛山）化工有限公司 | Tripolyindenone derivative modified alkyd resin water-based paint |
| CN112960939A (en) * | 2021-02-07 | 2021-06-15 | 枣阳市锦烨节能建材有限公司 | Colored asphalt concrete and preparation method thereof |
| CN116856198A (en) * | 2023-09-04 | 2023-10-10 | 青州金昊新材料有限公司 | Paper molding waterproof agent and preparation method and application thereof |
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Application publication date: 20191217 |