CN110746834B - Negative ion coating and preparation method thereof - Google Patents

Negative ion coating and preparation method thereof Download PDF

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CN110746834B
CN110746834B CN201911201582.9A CN201911201582A CN110746834B CN 110746834 B CN110746834 B CN 110746834B CN 201911201582 A CN201911201582 A CN 201911201582A CN 110746834 B CN110746834 B CN 110746834B
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negative ion
coating
anion
ether
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CN110746834A (en
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向德轩
卜新祥
向柏霖
高彬彬
欧阳跃军
林红卫
舒友
张再兴
汤艳
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Niu Zhijie
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Huaihua University
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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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/325—Calcium, strontium or barium phosphate

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention relates to an anion paint and a preparation method thereof. The negative ion coating comprises the following raw materials in parts by weight: 500-600 parts of pure acrylic emulsion; 100-150 parts of titanium dioxide; 180-200 parts of a filler; 15-25 parts of a film-forming assistant; 5-20 parts of negative ion inducing source minerals; 0.5 to 5 portions of rosin; 3-8 parts of a dispersing agent; 1.5-5 parts of waterborne polyether modified siloxane; 5-10 parts of an anti-settling agent; 200 to 300 portions of water. On the basis of ensuring the anion induction amount of the coating, the invention emphasizes the research on the washing resistance of the anion coating, optimizes the raw materials and the proportion through a large number of experiments, researches and discovers that the raw materials of the induction source mineral, the rosin, the dispersant and the anti-settling agent have larger influence on the washing resistance of the anion coating, and finally optimizes the anion coating with excellent washing resistance.

Description

Negative ion coating and preparation method thereof
Technical Field
The invention relates to the technical field of coatings, in particular to an anion coating and a preparation method thereof.
Background
Neutral gas molecules in the air form negatively charged ions after capturing electrons, which are called air anions, but the capability of various gas molecules in the air for capturing electrons is strong or weak, wherein the capability of oxygen and carbon dioxide for capturing electrons is strong, and O is strong2The content of CO in air is more than 20 percent2The content of air is only 0.03%, and 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, settle suspended particles such as smoke, dust and the like, purify and refresh the air, degrade organic pollutants and the like, and in environmental evaluation, the air has the functions of purifying and refreshing the air, and degrading the organic pollutantsThe concentration of negative ions is listed as an important index for measuring the quality of air, and the content of the negative ions in the air is closely related to the cleanliness of the air. And 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 is more than or equal to that of positive ions, people can feel comfortable, and the concentration of negative ions in the air reaches 700/cm3The above-mentioned raw materials are good for human health, and when the concentration is up to 1 ten thousand/cm3The above-mentioned diseases can be cured, and has auxiliary therapeutic action for several diseases, so that it is known as "air vitamin" and "longevity element in atmosphere".
With the development of human civilization, particularly after the second industrial revolution, the industrialization and urbanization progress is accelerated, the problem of human living environment pollution is increasingly prominent, and especially with the common application of industrial decoration materials, a large amount of chemical decoration materials and chemical building materials enter the room, the use of household appliances, the tight closing of doors and windows and other problems cause rare indoor air negative ions, the air negative oxygen ions in the living environment of human are increasingly reduced, and the indoor pollution influences the human health. Therefore, the purposes of efficiently and durably purifying indoor air and maintaining a fresh and healthy environment are pursued by people.
The ecological negative ion coating is developed, the problems of formaldehyde and VOC in the traditional coating are solved, the living environment of people is improved, and the harm to human bodies is reduced. However, the existing ecological anion paint has poor washing resistance.
Disclosure of Invention
Therefore, it is necessary to provide an anion paint and a preparation method thereof to solve the problems of low anion induction amount and poor washing resistance of the existing ecological anion paint.
The negative ion coating comprises the following raw materials in parts by weight:
Figure BDA0002296016470000021
as a coating, the anion coating can be applied to various occasions, and certainly can face the tests of rain wash and artificial cleaning. The traditional negative ion coating is neglected in the aspect of washing and brushing resistance, and the poor washing and brushing resistance means that the negative ion release capacity of the coating is greatly weakened after the coating is washed for a long time, and the service life of the coating is greatly shortened.
On the basis of ensuring the anion induction amount of the coating, the invention emphasizes the research on the washing resistance of the anion coating, researches and discovers that the raw materials of the anion induction source mineral, the rosin, the dispersant and the anti-settling agent have larger influence on the washing resistance of the anion coating through a large amount of experiments to optimize and obtain the anion coating with excellent washing resistance.
In one embodiment, the negative ion coating comprises the following raw materials in parts by mass:
Figure BDA0002296016470000031
in one embodiment, the negative ion coating comprises the following raw materials in parts by mass:
Figure BDA0002296016470000032
Figure BDA0002296016470000041
in one embodiment, the negative ion inducing source mineral is at least one selected from quartz, feldspar, tourmaline, mica, monazite and zircon.
In one embodiment, the negative ion inducing source mineral is selected from at least two of quartz, feldspar, tourmaline, mica, monazite and zircon.
In one embodiment, the negative ion induction source minerals are tourmaline and monazite, and the mass ratio of the tourmaline to the monazite is (3-5): 1.
In one embodiment, the coalescing agent is selected from at least one of ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, and propylene glycol phenyl ether.
In one embodiment, the dispersant is selected from at least one of polyphosphate, sodium polyacrylate, and sodium dodecyl sulfate.
In one embodiment, the filler is kaolin or talc; the anti-settling agent is at least one selected from bentonite and polyolefin wax particles.
The invention also provides a preparation method of the negative ion coating, which comprises the following steps:
preparing raw materials of the negative ion coating according to any one of the above steps; and
mixing titanium dioxide, filler, film-forming assistant, anion-inducing source mineral, rosin, dispersant, anti-settling agent and part of water, ball-milling until the average particle size is less than 0.6 mu m, adding pure acrylic emulsion, water-based polyether modified siloxane and the rest water, and mixing uniformly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, which illustrate embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides an anion paint which comprises the following raw materials in parts by mass:
Figure BDA0002296016470000051
the negative ion inducing source mineral contains rich rare earth elements (such as Ce, La, Nd and the like) and also has a proper amount of natural primary radionuclides, the rare earth elements efficiently generate free radicals and are converted into negative ions under the conditions of ultraviolet light, visible light or trace natural radiation, and the natural primary radionuclides as background radiation sources of the natural mineral have the functions of ionizing air and generating negative ions. Therefore, although the negative ion inducing mineral has an excellent negative ion inducing effect, its own radioactivity has a certain limit to its use.
The pure acrylic emulsion has better water resistance, stain resistance and aging resistance, and is a basic raw material for preparing the coating; the titanium dioxide has the characteristics of good coloring and high covering power; the dispersant can uniformly disperse inorganic and organic solid particles which are difficult to dissolve in liquid, and can prevent the solid particles from settling and coagulating to form stable suspension; the water-based polyether modified siloxane has the functions of defoaming and leveling agent.
On the basis of ensuring the anion induction amount of the coating, the invention emphasizes the research on the washing resistance of the anion coating, optimizes the raw materials and the proportion through a large number of experiments, researches and discovers that the raw materials of the induction source mineral, the rosin, the dispersant and the anti-settling agent have larger influence on the washing resistance of the anion coating, and finally optimizes the anion coating with excellent washing resistance.
The invention controls the selection of the negative ion inducing source mineral and the accurate control of the dosage thereof, so that the radioactivity of the coating meets the requirements.
Further, the negative ion coating comprises the following raw materials in parts by mass:
Figure BDA0002296016470000061
Figure BDA0002296016470000071
in one embodiment, the negative ion coating comprises the following raw materials in parts by mass: 600 parts of pure acrylic emulsion; 120 parts of titanium dioxide; 180 parts of a filler; 20 parts of a film-forming assistant; 5 parts of negative ion inducing source minerals; 0.5 part of rosin; 5 parts of a dispersing agent; 3 parts of waterborne polyether modified siloxane; 8 parts of an anti-settling agent; 300 parts of water. The anion paint of the embodiment not only ensures the initial anion induction amount, but also has excellent sedimentation stability, weather resistance and washing resistance, and the radioactivity meets the requirements.
In one embodiment, the negative ion inducing source mineral is selected from at least one of quartz, feldspar, tourmaline, mica, monazite and zircon.
Further, the negative ion inducing source mineral is selected from at least two of quartz, feldspar, tourmaline, mica, monazite and zircon. When at least two kinds of negative ion inducing source minerals are used, the negative ion inducing amount of the coating is higher.
Preferably, the negative ion inducing source minerals are tourmaline and monazite, and the mass ratio of the tourmaline to the monazite is (3-5): 1. Researches find that the tourmaline and monazite are used in combination, the mass ratio of the tourmaline to the monazite is controlled, and the anion coating has the most excellent weather resistance and washing resistance.
In one embodiment, the coalescing agent is selected from at least one of ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, and propylene glycol phenyl ether. Preferably, the coalescent is dipropylene glycol monobutyl ether.
In one embodiment, the dispersant is selected from at least one of polyphosphate, sodium polyacrylate, and sodium dodecyl sulfate. Preferably, the dispersant is sodium polyacrylate.
In one embodiment, the filler is kaolin or talc
In one embodiment, the anti-settling agent is selected from at least one of bentonite and polyolefin wax microparticles. .
In one embodiment, the titanium dioxide is preferably rutile type titanium dioxide.
The invention also provides a preparation method of the negative ion coating, which comprises the following steps:
preparing raw materials of the negative ion coating according to any one of the above materials;
mixing titanium dioxide, filler, film-forming assistant, anion-inducing source mineral, rosin, dispersant, anti-settling agent and part of water, ball-milling until the average particle size is less than 0.6 mu m, adding pure acrylic emulsion, water-based polyether modified siloxane and the rest water, and mixing uniformly. Further, 100-150 parts of water can be mixed and ball-milled, and then the rest parts of water, the pure acrylic emulsion and the waterborne polyether modified siloxane are added and mixed uniformly.
According to the invention, a part of raw materials are subjected to ball milling, and all the raw materials are fully fused and then mixed with the pure acrylic emulsion, so that the anion release of the coating is facilitated, and the weather resistance and the washing resistance of the coating are improved.
The following are specific examples
The raw materials of the negative ion coating materials of examples 1 to 6 are shown in table 1:
TABLE 1
Figure BDA0002296016470000081
The preparation method of the negative ion coating of the embodiment 1-6 comprises the following steps: according to the formula shown in table 1, rutile titanium dioxide, kaolin, dipropylene glycol monobutyl ether, an anion-inducing mineral, rosin, sodium polyacrylate, waterborne polyether modified siloxane, bentonite and 150g of water are mixed, ground by a ball mill to the particle size shown in table 1, and then the rest raw materials are added and mixed uniformly to obtain the anion paint.
Comparative example 1
The preparation method of the negative ion paint of comparative example 1 is substantially the same as that of example 1 except that: the average particle size after ball milling was 0.65. mu.m.
Comparative example 2
The preparation method of the negative ion paint of the comparative example 2 is substantially the same as that of the example 6 except that: 20g of tourmaline and 5g of monazite.
Comparative example 3
The preparation method of the negative ion paint of the comparative example 3 is basically the same as that of the example 1 except that: no rosin was added.
Comparative example 4
The preparation method of the negative ion paint of the comparative example 4 is substantially the same as that of the example 1 except that: 2.5g of sodium polyacrylate and 4.5g of bentonite.
Comparative example 5
The preparation method of the negative ion paint of the comparative example 5 is substantially the same as that of the example 1 except that: the rosin was added after the ball milling step.
Paint settling stability test
And (3) standing the negative ion coating for 30 days at room temperature, and observing whether the bottom of the coating has precipitates, wherein the precipitates are unstable, and the precipitates are not stable.
Negative ion induction amount detection
The negative ion coatings prepared in examples 1-6 and comparative examples 1-6 are respectively coated on sample plates in the same amount, the sample plates are dried and then respectively placed in the same closed empty box (self-made according to JC/T1074), the air negative ion concentration in the empty box is tested after 3 days, the middle position of a sampling box body is tested, the testing time is 15min, the testing average value is taken as the air negative ion concentration in the box, and the negative ion induction amount is represented by subtracting the negative ion concentration in the blank box from the negative ion concentration in the testing box.
Weather resistance test
Xenon lamps using a daylight filter were performed according to GB/T1865-2009 "xenon arc radiation filtered by artificial weathering of paints and varnishes and artificial radiation exposure" [ method 1 (artificial weathering) ], the template wetting cycle was in the a mode with a continuous exposure time of 1000 h. (the retention rate of the anion concentration after weathering for 1000 hours is up to 90% and above, and the retention rate below 90% is off-specification)
Scrub resistance method reference: GB T9266 + 2009 building paint coating scrub resistance determination (scrub resistance times is 150 times, after scrub resistance, the retention rate of anion induction is 85% or more is qualified)
The test of radioactivity is performed with reference to GB 6566-.
The results of the above tests are shown in table 2.
TABLE 2
Figure BDA0002296016470000101
Figure BDA0002296016470000111
As can be seen from the data in Table 2, the negative ion coatings of examples 1-6 of the present invention all remained in a stable state after 30 days, and the initial negative ion induction amount was more than 3000/cm3And the anion induction amount meets the requirement after the paint is weathered for 1000 hours, most importantly, after the paint is washed and brushed for 150 times, the retention rate of the anion induction amount is over 85 percent, the paint has excellent washing and brushing resistance, and meets the requirement of radioactivity. The average particle size of the negative ion coating of the comparative example 1 is larger, the sedimentation stability and the washing resistance of the coating are poorer, and the negative ion induction amount is also greatly influenced; the anion paint of the comparative example 2 is added with more anion-inducing source minerals, the emulsion stability is poor due to the larger using amount, although the stability can be improved by further adding the dispersant, the film forming performance of the paint can be affected, and the scrubbing resistance is poor; the negative ion coating of comparative example 3, to which no rosin was added, resulted in poor washability of the coating; the negative ion coating of comparative example 4 has a small amount of the dispersant and bentonite, and the coating shows poor stability and poor washing resistance; also, the negative ion paint of comparative example 5, in which rosin was not fused with other raw materials through a ball milling process during the preparation, was inferior in stability, weather resistance and washing resistance due to the negative ion-inducing amount, although the average particle size of the paint was 0.49 μm.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (6)

1. The preparation method of the negative ion coating is characterized by comprising the following steps:
mixing titanium dioxide, filler, film-forming assistant, anion-inducing source mineral, rosin, dispersant, anti-settling agent and part of water, ball-milling until the average particle size is less than 0.6 mu m, adding and uniformly mixing pure acrylic emulsion, waterborne polyether modified siloxane and the rest water;
wherein the raw materials comprise the following components in parts by weight:
600 parts of pure acrylic emulsion;
120 parts of titanium dioxide;
180 parts of a filler;
20 parts of a film-forming assistant;
5 parts of negative ion inducing source minerals;
0.5 part of rosin;
5 parts of a dispersing agent;
3 parts of waterborne polyether modified siloxane;
8 parts of an anti-settling agent; and
300 parts of water;
wherein the negative ion inducing source minerals are tourmaline and monazite.
2. The method for preparing the negative ion coating according to claim 1, wherein the mass ratio of the tourmaline to the monazite is (3-5): 1.
3. The method of claim 1, wherein the film-forming additive is at least one selected from the group consisting of ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, and propylene glycol phenyl ether.
4. The method for preparing the negative ion coating according to claim 1, wherein the dispersant is at least one selected from the group consisting of polyphosphate, sodium polyacrylate and sodium dodecyl sulfate.
5. The method for preparing the negative ion coating according to any one of claims 1 to 4, wherein the filler is kaolin or talcum powder; the anti-settling agent is at least one selected from bentonite and polyolefin wax particles.
6. An anionic paint, characterized by being prepared by the preparation method of any one of claims 1 to 5.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001303755A (en) * 2000-04-21 2001-10-31 Gantan Beauty Ind Co Ltd Interior material for building, and method of excuting work for interiror structure for building having negative ion generating function
CN108410307A (en) * 2018-04-20 2018-08-17 佛山市康东照明科技有限公司 A kind of water-and acrylate nano controlled-release insecticidal and antibacterial coating
CN109914659A (en) * 2019-03-18 2019-06-21 广州市第四装修有限公司 Building glass curtain wall construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001303755A (en) * 2000-04-21 2001-10-31 Gantan Beauty Ind Co Ltd Interior material for building, and method of excuting work for interiror structure for building having negative ion generating function
CN108410307A (en) * 2018-04-20 2018-08-17 佛山市康东照明科技有限公司 A kind of water-and acrylate nano controlled-release insecticidal and antibacterial coating
CN109914659A (en) * 2019-03-18 2019-06-21 广州市第四装修有限公司 Building glass curtain wall construction method

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