CN111675935A - Water-based negative ion auxiliary agent and water-based negative ion UV paint - Google Patents

Water-based negative ion auxiliary agent and water-based negative ion UV paint Download PDF

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CN111675935A
CN111675935A CN202010727147.6A CN202010727147A CN111675935A CN 111675935 A CN111675935 A CN 111675935A CN 202010727147 A CN202010727147 A CN 202010727147A CN 111675935 A CN111675935 A CN 111675935A
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water
negative ion
paint
auxiliary agent
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吴晨伟
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
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    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/0834Compounds having one or more O-Si linkage
    • C07F7/0836Compounds with one or more Si-OH or Si-O-metal linkage
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K

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Abstract

The invention belongs to the field of coatings. The invention relates to a water-based negative ion auxiliary agent and a water-based negative ion UV paint, wherein the preparation method of the water-based negative ion auxiliary agent comprises the steps of taking a silane coupling agent (A) and tourmaline (B) as raw materials, reacting to obtain a water-based negative ion auxiliary agent material and preparing the water-based negative ion UV paint, solving the defect that the existing water-based UV paint is endowed with special functions and needs to be added with corresponding functional auxiliary agents respectively to cause complex formula, and having the characteristics of high wear resistance, high hardness, antibiosis, formaldehyde removal and the like.

Description

Water-based negative ion auxiliary agent and water-based negative ion UV paint
Technical Field
The invention relates to a water-based negative ion auxiliary agent and a water-based negative ion UV paint. The invention belongs to the field of coatings.
Background
Neutral gas molecules in the air form negatively charged ions after capturing electrons, which are called air negative ions, wherein most of free electrons generated by air ionization are O2Thus, the air anions are also called air oxygen anions. Research shows that the negative oxygen ions in the air can effectively promote the growth of animals and plants, optimize the microcirculation of organisms, inhibit the growth of bacteria, and settle suspended particles such as smoke, dust and the like, thereby purifying and refreshing the air, degrading organic pollutants and the like. The research of medical scientists shows that the health care effect and the auxiliary curative effect of the air negative ions on human bodies are related to the concentration of the air negative ions. When the concentration of negative ions in the air reaches 700/cm3The health care wine is beneficial to human health, has adjuvant therapy effect on various diseases, and is known as 'air vitamin'.
However, as the living standard of human beings is improved, higher requirements are made on the quality of the living environment. The research of an anion induction technology is urgently needed, the content of negative ions in air in a space is increased through anion induction, the indoor air quality is improved, the living quality of people is improved, and the anion induction technology has great social benefits.
The tourmaline has good pyroelectricity and piezoelectricity, and releases negative ions, far infrared rays and other properties, so the tourmaline has great application prospects in the aspects of environmental protection, medical care, acoustoelectric functional materials and the like. The application of the existing tourmaline powder has the defects of strong polarity, serious agglomeration phenomenon, poor dispersibility in polymers and the like, and restricts the application range of the tourmaline powder.
In view of the above situation, for researchers, the water-based negative ion UV paint has the advantages of being simple and convenient to construct, safe, environment-friendly and strong in applicability. Meanwhile, the problems that the tourmaline has dispersibility in the polymer and the water-based UV paint has multiple functions and the formula is complex are also solved.
Disclosure of Invention
The invention aims to overcome the defect that the conventional water-based UV paint has special functions and needs to be added with corresponding functional additives respectively to cause complex formula, and provides a water-based anion additive and a water-based anion UV paint.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the water-based anion auxiliary agent is characterized by having a structural formula as follows:
Figure BDA0002602195000000011
wherein, -R1is-CH3or-H; -R3is-CH3or-OH; m is tourmaline surface metal ions; n is 0 or 3.
A preparation method of a water-based anion auxiliary agent is characterized by comprising the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 0.7-1.5g of silane coupling agent into a constant-pressure dropping funnel, and dropping dropwise after 15 min; adjusting pH to 3.5-4.5 with hydrochloric acid, stirring at 65-75 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion auxiliary agent, and grinding.
Preferably, the ethanol solution is ethanol and water in a mass ratio of 1: 0.4-5.
Preferably, the silane coupling agent is acryloxypropyltrimethoxysilane, methacryloxypropylmethyldimethoxysilane, methacryloxypropyltriethoxysilane, methacryloxypropylmethyldiethoxysilane or acryloxytriisopropylsilane.
An aqueous negative ion UV paint is characterized in that: comprises the following raw materials in parts by weight:
50-70 parts of waterborne polyurethane acrylate;
10-15 parts of functional monomer;
0.5-1 part of a dispersant;
1-2 parts of a water-based negative ion auxiliary agent;
1-3 parts of a photoinitiator;
3-5 parts of a film-forming assistant;
deionized water: 10-15 parts.
Preferably, the functional monomer is one or more of emulsified EOEOEA, PO3-TMPTA and EO 3-TMPTA.
Preferably, the photoinitiator is 1173 or 2959.
Preferably, the film-forming aid is formed by mixing dipropylene glycol butyl ether and propylene glycol monobutyl ether in a mass ratio of 1: 0.5-2.
Preferably, the preparation method of the water-based negative ion UV paint comprises the following steps:
pouring 50-70 parts of waterborne polyurethane dispersoid and 10-15 parts of functional monomer into a dispersion kettle, stirring, premixing 3-5 parts of film-forming assistant, 0.5-1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 1-2 parts of waterborne negative ion assistant, dispersing, uniformly stirring, slowly adding 1-3 parts of waterborne photoinitiator after the fineness is qualified and no oil shrinkage is detected, dispersing at medium speed, adding 5-10 parts of water and waterborne negative ion UV paint after the fineness is qualified and no oil shrinkage is detected.
The preparation process of the water-based anion auxiliary agent provided by the invention comprises the following steps:
Figure BDA0002602195000000031
the invention has the beneficial effects that:
(1) the invention provides a water-based anion auxiliary agent, which is prepared by adopting a silane coupling agent (A) and tourmaline (B) as raw materials, relieves the current situation that the negative ion tourmaline powder is difficult to disperse in a polymer at present, and has the advantages of wide raw material source, simple reaction steps and easy operation.
(2) The invention provides a water-based negative ion auxiliary agent and a water-based negative ion UV paint. The low surface tension of silicon atoms promotes the tourmaline to migrate to the surface, which is beneficial to leveling the coating film and simultaneously migrates the tourmaline to the surface of the coating film, thereby greatly playing the effect.
(3) The invention provides a water-based negative ion auxiliary agent and a water-based negative ion UV paint. The UV curing agent is connected with a system in a chemical bond mode in the UV curing process, has no migration, and forms a stable structure.
(4) The invention provides a water-based negative ion UV paint which is endowed with the characteristics of high wear resistance, high hardness, antibiosis, formaldehyde removal and the like through formula design. It is expected that the material will meet wide market prospect, especially in the fields of indoor decorative paint, medical treatment and the like.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to examples. It is to be understood, however, that the following examples are illustrative of embodiments of the present invention and are not to be construed as limiting the scope of the invention.
Example 1
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water in a mass ratio of 1:3) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 0.9g of acryloyloxypropyl trimethoxysilane into a constant-pressure dropping funnel, and dropping dropwise for 15 min; adjusting pH to 4 with hydrochloric acid, stirring at 70 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3425cm-1: -OH is present; 1253cm-1: B-O exists; 1066cm-1: -Si-O-is present; 1750cm-1: -C ═ O is present; 1632cm-1、811cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
461970 parts of waterborne polyurethane acrylate Urosin;
10 parts of functional monomer EO 3-TMPTA;
1 part of dispersing agent PVA;
2 parts of a water-based negative ion auxiliary agent;
29591 parts of a photoinitiator;
5 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 15 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 70 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 5 parts of film-forming assistant, 1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 2 parts of waterborne negative ion assistant, dispersing, after uniformly stirring, checking that the fineness is qualified and no shrinkage exists, slowly adding 1 part of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 10 parts of water and waterborne negative ion UV paint.
Example 2
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water are in a mass ratio of 1:4) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 0.7g of acryloyloxy triisopropyl silane into a constant-pressure dropping funnel, and dropwise adding for 15 min; adjusting pH to 3.5 with hydrochloric acid, stirring at 75 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3427cm-1: -OH is present; 1251cm-1: B-O exists; 1065cm-1: -Si-O-is present; 1750cm-1: -C ═ O is present; 1632cm-1、810cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
463250 parts of waterborne polyurethane acrylate Urosin;
15 parts of a functional monomer PO 3-TMPTA;
1 part of dispersing agent PVA;
2 parts of a water-based negative ion auxiliary agent;
11733 parts of a photoinitiator;
3 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 2;
deionized water: 10 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 50 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 3 parts of film-forming assistant, 1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 2 parts of waterborne anion assistant, dispersing, after stirring uniformly, checking that the fineness is qualified and no shrinkage exists, slowly adding 3 parts of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 5 parts of water and waterborne anion UV paint.
Example 3
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water in a mass ratio of 1:0.4) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 1.5g of methacryloxypropyltriethoxysilane into a constant-pressure dropping funnel, and dropwise adding for 15 min; adjusting pH to 4.5 with hydrochloric acid, stirring at 65 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3426cm-1: -OH is present; 1251cm-1: B-O exists; 1065cm-1: -Si-O-is present; 1750cm-1: -C ═ O is present; 1635cm-1、812cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
469960 parts of waterborne polyurethane acrylate Urosin;
12 parts of functional monomer EOEOEA;
1 part of dispersing agent PVA;
2 parts of a water-based negative ion auxiliary agent;
29592 parts of a photoinitiator;
4 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 1;
deionized water: 12 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
firstly, 60 parts of waterborne polyurethane dispersoid and 12 parts of functional monomer are poured into a dispersion kettle, stirred, then 4 parts of film-forming assistant, 1 part of dispersant and 5 parts of deionized water are premixed uniformly and slowly added under the stirring state, then 2 parts of waterborne anion assistant are slowly added, the mixture is dispersed, after the uniform stirring, the fineness is qualified after the inspection and no shrinkage is caused, then 3 parts of waterborne photoinitiator are slowly added, the mixture is dispersed at medium speed, and after the fineness is qualified and no shrinkage is caused, 7 parts of water and waterborne anion UV paint are added.
Example 4
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water in a mass ratio of 1:2) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 1g of methacryloxypropyl methyldimethoxysilane into a constant-pressure dropping funnel, and dropping dropwise for 15 min; adjusting pH to 4 with hydrochloric acid, stirring at 70 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3429cm-1: -OH is present; 1251cm-1: B-O exists; 1066cm-1: -Si-O-is present; 1750cm-1: -C ═ O is present; 1632cm-1、811cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
463260 parts of waterborne polyurethane acrylate Urosin;
the mass ratio of the functional monomer EO3-TMPTA to the EOEOEA is 1: 112;
0.5 part of dispersing agent PVA;
1 part of water-based negative ion auxiliary agent;
29592 parts of a photoinitiator;
4 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 13 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
firstly, 60 parts of waterborne polyurethane dispersoid and 12 parts of functional monomer are poured into a dispersion kettle, stirred, then 4 parts of film-forming assistant, 0.5 part of dispersant and 5 parts of deionized water are premixed uniformly and slowly added under the stirring state, then 1 part of waterborne anion assistant is slowly added, the mixture is dispersed, after the mixture is uniformly stirred and the fineness is qualified and no shrinkage is detected, then 2 parts of waterborne photoinitiator is slowly added, the mixture is dispersed at medium speed, and after the fineness is qualified and no shrinkage is detected, 8 parts of water and waterborne anion UV paint are added.
Example 5
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water in a mass ratio of 1:1) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 1.3g of methacryloxypropyl methyldiethoxysilane into a constant-pressure dropping funnel, and dropwise adding for 15 min; adjusting pH to 4 with hydrochloric acid, stirring at 65 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3431cm-1: -OH is present; 1251cm-1: B-O exists; 1069cm-1: -Si-O-is present; 1750cm-1: -C ═ O is present; 1632cm-1、811cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
469950 parts of waterborne polyurethane acrylate Urosin;
the weight ratio of the functional monomer PO3-TMPTA to EOEOEOEA is 1: 115;
0.5 part of dispersing agent PVA;
1 part of water-based negative ion auxiliary agent;
11733 parts of a photoinitiator;
3 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 10 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
firstly pouring 50 parts of waterborne polyurethane dispersoid and 15 parts of functional monomer into a dispersion kettle, stirring, premixing 3 parts of film-forming assistant, 0.5 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 1 part of waterborne anion assistant, dispersing, after stirring uniformly, checking that the fineness is qualified and no shrinkage exists, slowly adding 3 parts of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 5 parts of water and waterborne anion UV paint.
Example 6
A preparation method of the water-based anion auxiliary agent comprises the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution (ethanol and water are in a mass ratio of 1:5) into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 0.7g of acryloyloxy triisopropyl silane into a constant-pressure dropping funnel, and dropwise adding for 15 min; adjusting pH to 4 with hydrochloric acid, stirring at 70 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion adjuvant, and grinding.
The infrared data are as follows: IR (KBr, cm)-1):3430cm-1: -OH is present; 1251cm-1: B-O exists; 1065cm-1: -Si-O-is present; 1751cm-1: -C ═ O is present; 1632cm-1、811cm-1: -C ═ C-is present.
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
461970 parts of waterborne polyurethane acrylate Urosin;
functional monomers EO3-TMPTA, PO3-TMPTA and EOEOEA in a mass ratio of 1:1: 110;
0.5 part of dispersing agent PVA;
1 part of water-based negative ion auxiliary agent;
11731 parts of a photoinitiator;
5 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 1;
deionized water: 15 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 70 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 5 parts of film-forming aid, 0.5 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 1 part of waterborne anion aid, dispersing, after uniformly stirring and checking that the fineness is qualified and no shrinkage exists, slowly adding 1 part of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 10 parts of water and waterborne anion UV paint.
Comparative examples 1-3 are all compared to the negative ion UV paint of specific example 1.
Comparative example 1
The water-based UV paint comprises the following raw materials in parts by weight:
461970 parts of waterborne polyurethane acrylate Urosin;
10 parts of functional monomer EO 3-TMPTA;
1 part of dispersing agent PVA;
29591 parts of a photoinitiator;
5 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 15 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 70 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 5 parts of film-forming aid, 1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the mixture under a stirring state, stirring uniformly, inspecting qualified fineness and avoiding oil shrinkage, slowly adding 1 part of waterborne photoinitiator, dispersing at medium speed, inspecting qualified fineness and avoiding oil shrinkage, and adding 10 parts of water and waterborne UV paint.
Comparative example 2
The water-based negative ion UV paint comprises the following raw materials in parts by weight:
461970 parts of waterborne polyurethane acrylate Urosin;
10 parts of functional monomer EO 3-TMPTA;
1 part of dispersing agent PVA;
2 parts of untreated tourmaline powder;
29591 parts of a photoinitiator;
5 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 15 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 70 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 5 parts of film-forming aid, 1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 2 parts of untreated tourmaline powder, dispersing, after stirring uniformly, checking that the fineness is qualified and no shrinkage exists, slowly adding 1 part of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 10 parts of water and waterborne negative ion UV paint.
Comparative example 3
The water-based UV paint comprises the following raw materials in parts by weight:
461970 parts of waterborne polyurethane acrylate Urosin;
10 parts of functional monomer EO 3-TMPTA;
1 part of dispersing agent PVA;
2 parts of nano aluminum oxide dispersion;
29591 parts of a photoinitiator;
5 parts of dipropylene glycol butyl ether and propylene glycol monobutyl ether which are film-forming aids are mixed according to the mass ratio of 1: 0.5;
deionized water: 15 parts.
A preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 70 parts of waterborne polyurethane dispersion and 10 parts of functional monomer into a dispersion kettle, stirring, premixing 5 parts of film-forming auxiliary agent, 1 part of dispersing agent and 5 parts of deionized water uniformly, slowly adding under stirring, slowly adding 2 parts of nano-alumina dispersion, dispersing, after stirring uniformly, checking that the fineness is qualified and no shrinkage exists, slowly adding 1 part of waterborne photoinitiator, dispersing at medium speed, checking that the fineness is qualified and no shrinkage exists, and adding 10 parts of water and waterborne UV paint.
The above specific examples 1 to 5 and comparative examples 1 to 3 were applied according to the following processes: (1) and adjusting spraying construction, spraying the water-based UV coating on a substrate, leveling for 2.2min, drying the coating for 6min by utilizing hot air at 58 ℃, and finally placing the coating on an ultraviolet lamp for curing to form a film.
Physical properties including gloss, adhesion, impact, pencil hardness, negative ion emission amount, formaldehyde emission amount, and antibacterial property of the negative ion UV paints prepared in examples 1 to 5 of the present invention and comparative examples 1 to 3 were measured, respectively, and the results are shown in table 1.
Table 1 physical test properties of the examples
Figure BDA0002602195000000091
Firstly, as can be seen from table 1, compared with the common water-based UV paint, the water-based negative ion UV paint of the present invention has the original excellent performance, and simultaneously has higher hardness, better wear resistance and gloss;
secondly, compared with the existing common water-based UV paint, the water-based anion paint has higher anion release property, formaldehyde purification property and antibacterial property;
thirdly, the aqueous anion auxiliary agent of the invention effectively improves the dispersibility of tourmaline powder in polymer, so that the comprehensive performance of the prepared aqueous anion UV paint is effectively improved.
In summary, compared with the existing water-based anion paint, the water-based anion paint of the invention enriches the tourmaline on the surface of the paint film due to the low surface tension of the silicon element, and meanwhile, the silicon element has a certain leveling effect. Therefore, on the premise of maintaining the mechanical property, the material has high hardness, high wear resistance, high negative ion release, antibacterial property and the like. It is expected that the material will meet wide market prospect, especially in the fields of indoor decorative paint, medical treatment and the like.
The test method comprises the following steps:
(1) gloss: pencil hardness was measured according to GB/T9754-2007 standard.
(2) Adhesion force: the adhesion of the coating was tested by cross-hatch according to GB/T9286-1998.
(3) Impact: the test was carried out according to the GB/T1732-93 standard.
(4) Pencil hardness: pencil hardness was measured according to GB/T6739-2006 standard.
(5) Wear resistance: the weight was 1kg, and the test was carried out using a 0000# steel wool abrasion tester.
(6) The release amount of negative ions is as follows: the test was performed as described for HG/T4109.
(7) Formaldehyde emission: the test was carried out as described with reference to JC/T1074.
(8) And (3) antibacterial property: the test was carried out as described for HG/T3950.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (9)

1. The water-based anion auxiliary agent is characterized by having a structural formula as follows:
Figure FDA0002602194990000011
wherein, -R1is-CH3or-H; -R3is-CH3or-OH; m is tourmaline surface metal ions; n is 0 or 3.
2. A preparation method of a water-based anion auxiliary agent is characterized by comprising the following steps:
adding 10g of tourmaline powder and 50mL of ethanol solution into a four-neck flask, condensing at 60 ℃, ultrasonically stirring for 20min, adding 0.7-1.5g of silane coupling agent into a constant-pressure dropping funnel, and dropping dropwise after 15 min; adjusting pH to 3.5-4.5 with hydrochloric acid, stirring at 65-75 deg.C for 60min, cooling to room temperature, vacuum filtering, washing with distilled water and anhydrous ethanol for 3 times to obtain aqueous anion auxiliary agent, and grinding.
3. The method for preparing the aqueous anion auxiliary agent according to claim 2, wherein the method comprises the following steps: the ethanol solution is prepared by mixing ethanol and water according to the mass ratio of 1: 0.4-5.
4. The method for preparing the aqueous anion auxiliary agent according to claim 2, wherein the method comprises the following steps: the silane coupling agent is acryloxypropyltrimethoxysilane, methacryloxypropylmethyldimethoxysilane, methacryloxypropyltriethoxysilane, methacryloxypropylmethyldiethoxysilane or acryloxytriisopropylsilane.
5. An aqueous negative ion UV paint is characterized in that: comprises the following raw materials in parts by weight:
50-70 parts of waterborne polyurethane acrylate;
10-15 parts of functional monomer;
0.5-1 part of a dispersant;
1-2 parts of a water-based negative ion auxiliary agent;
1-3 parts of a photoinitiator;
3-5 parts of a film-forming assistant;
deionized water: 10-15 parts.
6. The aqueous negative ion UV paint according to claim 5, characterized in that: the functional monomer is one or more of emulsified EOEOEA, PO3-TMPTA and EO 3-TMPTA.
7. The aqueous negative ion UV paint according to claim 5, characterized in that: the photoinitiator is 1173 or 2959.
8. The aqueous negative ion UV paint according to claim 5, characterized in that: the film-forming assistant is formed by mixing dipropylene glycol butyl ether and propylene glycol monobutyl ether in a mass ratio of 1: 0.5-2.
9. The aqueous negative ion UV paint according to claim 5, characterized in that: a preparation method of an aqueous negative ion UV paint comprises the following steps:
pouring 50-70 parts of waterborne polyurethane dispersoid and 10-15 parts of functional monomer into a dispersion kettle, stirring, premixing 3-5 parts of film-forming assistant, 0.5-1 part of dispersant and 5 parts of deionized water uniformly, slowly adding the premixed materials under stirring, slowly adding 1-2 parts of waterborne negative ion assistant, dispersing, uniformly stirring, slowly adding 1-3 parts of waterborne photoinitiator after the fineness is qualified and no oil shrinkage is detected, dispersing at medium speed, adding 5-10 parts of water and waterborne negative ion UV paint after the fineness is qualified and no oil shrinkage is detected.
CN202010727147.6A 2020-07-26 2020-07-26 Water-based negative ion auxiliary agent and water-based negative ion UV paint Pending CN111675935A (en)

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