CN1478828A - Negalive ion paint additive - Google Patents
Negalive ion paint additive Download PDFInfo
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- CN1478828A CN1478828A CNA031531164A CN03153116A CN1478828A CN 1478828 A CN1478828 A CN 1478828A CN A031531164 A CNA031531164 A CN A031531164A CN 03153116 A CN03153116 A CN 03153116A CN 1478828 A CN1478828 A CN 1478828A
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Abstract
A negative ion additive for paint contains the electronic beam activated superfine tourmalinite powder, photocatalytic TiO2 nanoparticles, superfine topaz powder, and superfine TiO2 and/or SiO2 powder. Its advantages are high power to generate negative ions, high effect to remove formaldehyde, ammonia, benzene, VOC and other pernicious gases, and high safety.
Description
Technical Field
The invention relates to the field of coatings, in particular to an anionic coating additive.
Background
The effect of negative air ions on human healthhas been demonstrated by the scientific community since the last century. In the 20 th century, particularly in recent 20 years, air pollution is increasing day by day, with the development of modern cities, negative ions from the sky and the underground are rapidly reduced in high-rise buildings and asphalt cement roads, and in addition, various chemical substances are polluted, particularly, a large amount of harmful substances are released from indoor decoration materials, bacteria and mold are bred due to indoor air conditioners, electromagnetic waves are fully distributed everywhere, so that the concentration of the harmful substances in the air, particularly the indoor air, is increased, the concentration of the negative ions is reduced, and the medical community reminds that most of the existing indoor air quality is in a marginal state of inducing diseases. For this reason, a glow discharge anion generator is used to increase the concentration of anions in a room, but ozone, nitrogen oxides and electromagnetic radiation harmful to human health are generated while generating anions. Various air purifiers are also used, but harmful substances can be only partially removed, but the problem of lack of negative ions cannot be solved.
In the 80 s of the 20 th century, natural negative ion generating materials, i.e., a class of crystals having spontaneous polarization characteristics, among which tourmaline (tourmaline) of the contemporary genus is most drawing attention, were found; in addition, minerals containing radioactive elements and rare earth elements can also generate negative ions. At present, the technology of adding tourmaline or minerals containing radioactive elements and rare earth elements into the coating is reported at home and abroad. There are a number of disadvantages:
one proposal is that only tourmaline micropowder, such as CN1307077A and CN1379066A, is added into the paint, so that although the painthas certain effect, the effect is to be improved because the anion generating capacity is too low. The other proposal is that the tourmaline micropowder is added, and simultaneously, the mineral micropowder containing rare earth elements is added to activate the tourmaline, such as CN1386550A, so a certain effect can be obtained, but because the rare earth element minerals contain a certain amount of radioactive elements, the radioactive indexes are strictly controlled when in use, and in this case, although the generating capacity of negative ions is improved, a large amount of positive ions are generated at the same time.
In addition, CN1386550A added nano TiO2A photocatalysis material to improve the activity of the tourmaline. Guarantee nano TiO2Two key indicators of the effectiveness of photocatalytic materials are: the nanoparticles should have as small a particle size as possible and should be well dispersed in the carrier. This nano TiO2The cost of the photocatalytic material is high, and the photocatalytic material is not suitable for being used in large quantities. Therefore, the efficient multifunctional negative ion coating additive is a problem to be solved urgently in the coating industry, particularly in the architectural coating industry.
Disclosure of Invention
The invention aims to provide an efficient multifunctional negative ion coating additive without radioactive hazards.
The inventors have conducted intensive studies for this purpose, and as a result, have found that the ability of tourmaline to generate negative ions can be greatly improved by activating and strengthening tourmaline micropowder with an electron beam (particularly, a defocused electron beam). On the other hand, if a certain amount of topaz (topaz) powder is mixed into the composition containing tourmaline finepowder, the ability of tourmaline to generate negative ions can be remarkably improved. If these two technical measures are combined, the anion generating ability of the tourmaline-containing paint additive can be much higher than that of the prior art anion paint additive, and the present invention has been completed because of this research result.
The technical scheme of the invention is as follows:
(1) an anion paint additive is characterized by comprising the following components:
the weight of the particle size of the components
40-60 microns of tourmaline superfine powder with the diameter less than or equal to 1 mu m
Nano TiO 22The photocatalytic powder is less than or equal to 10nm and 0.5-5
The topaz ultra-fine powder is less than or equal to 3 mu m 2-35
The titanium dioxide and/or silicon dioxide superfine powder is less than or equal to 0.5 mu m, and the balance is up to 100%
Moreover, the tourmaline superfine powder is subjected to defocusing electron beam activation strengthening treatment in advance, and the treatment parameters are as follows:
electron beam acceleration voltage 10-50KV
Electron beam current 100-
The electron beam irradiation area is 2-10cm2
The thickness of the powder is 0.5-2cm
The longitudinal moving speed of the powder is 0.5-2 m/min.
(2) The negative ion paint additive as described in (1), which further contains BaTiO with a particle size of 1 μm or less30.5-5 wt% of the superfine powder.
(3) The negative ion paint additive according to (1) or (2), which further comprises an anionic dispersant, ethylene glycol and water, wherein when a mixture of all the components in the above (1) or (2) is used as the ultrafine mixed powder, the weight percentages of the components are as follows:
the weight of the ingredients
Mixed superfine powder 40-60
Anionic dispersant 0.2-1
Ethylene glycol 0.1-0.3
The balance of water (complement to 100%)
(4) The negative ion paint additive as described in (1) or (2), wherein the tourmaline is at least one selected from the group consisting of lithium tourmaline, magnesium tourmaline, and iron tourmaline.
(5) The anionic paint additive of (3), wherein the anionic dispersant is sodium polyacrylate.
(6) The negative ion paint additive as described in (4), wherein the tourmaline is lithium tourmaline.
The present invention is described in detail below.
The tourmaline selected in the invention is a gem crystal with spontaneous polarization characteristic, a plurality of similar allotrope bodies exist in the nature, common substances include iron tourmaline, lithium tourmaline, magnesium tourmaline, calcium magnesium tourmaline, lithium magnesium tourmaline and the like, but the crystal structure and the property are the same.
The chemical components of tourmaline are complicated and changeable and the crystal structure of tourmaline is specific, so that the centers of positive and negative charges of unit cell of tourmaline cannot coincide, and positive and negative electrodes are formed at two ends to form a permanent charged body and a permanent electrode. It is because the positive and negative charges have no symmetric center, i.e. the unit cell has inherent dipole moment, and the dipole moment is arranged along the same direction, so that the crystal is in a highly polarized state, and the polarized state exists when the external electric field is zero. When the external temperature or pressure has small change, the ion distance and bond angle of the crystal change to induce additional dipole moment, and the spontaneous polarization intensity changes to release part of bound charges bound on the crystal surface, so that the crystal is in a charged state or forms micro-current in a closed loop and forms 10 around the crystal4～107V/cm (when the crystal size is 3 μm), the electric field is spherical with a radius of tens of μm.
When the tourmaline is contacted with water molecules in the air, the tourmaline permanent electrode discharges instantly to electrolyze the water molecules:
due to H+Moving velocity ratio OH-The moving speed is high and is higher than that of other ions in the air, so H+Moving to the negative electrode of the permanent electrode, accepting an electron to generate H2Escape into the air:
and OH-Then combine with other water molecules in the air to generateHydroxyl-forming anions:
the above is the mechanism of the tourmaline to generate negative ions.
Because the tourmaline is a permanent electrode crystal with spontaneous polarization, namely has dipole moment, when molecules dothermal motion, the corresponding dipole moment changes, namely the thermal motion enables polar molecules to be excited to a higher energy level, when the polar molecules jump downwards, redundant energy is released in a far infrared mode, and far infrared radiation with the wavelength of 4-14 mu m and the emissivity of more than 90 percent is generated.
Under the action of micro-current, electric field and far infrared ray, tourmaline has antibacterial and bacteriostatic functions.
Due to the comprehensive effects of coating of negative ions, adsorption of positive and negative electrodes, decomposition of a micro-current electric field and the like, the tourmaline has the function of removing formaldehyde, ammonia, benzene, VOC and other odor and peculiar smell.
In addition, the size of the tourmaline particles has a great influence on the negative ion emission capability thereof. For example, when tourmaline with the same weight is ground into different particle sizes, the particle number of the tourmaline is greatly different. If one tourmaline powder particle having a particle size of 8 μm is pulverized to a particle size of 1 μm, more than 4000 powder particles are possible, that is, in order to provide as many permanent electrodes as possible with as few tourmaline as possible, it is necessary to pulverize it to as small a particle size as possible. However, since the tourmaline mineral has a high hardness and is crushed to a smaller particle size, the cost is significantly increased, and thus the particle size of tourmaline is limited to 1 μm or less.
In addition, the inventor also finds that the natural tourmaline has a certain limit on the capability of emitting negative ions, and even if the natural tourmaline is crushed to be less than or equal to 1 mu m, the negative ion emitting capability is still not ideal enough, so that thetourmaline is used in a large amount in the coating. After the intensive research of the inventor, the inventor discovers that the spontaneous polarization strength of a permanent electrode is increased and the pyroelectric coefficient is increased in order to further improve the negative ion generating capacity of the tourmaline, so that the inventor leads the tourmaline to be subjected to high-energy beam-electron beam activation strengthening treatment, the electron beam acceleration voltage is 10-50KV, the electron beam current is 100-200mA, the powder is treated by defocused electron beams to increase the ion distance and the bond angle of the permanent electrode, and when the external temperature and the external pressure have the same small change, the larger ion distance and the bond angle change can be caused, so that the spontaneous polarization strength and the pyroelectric coefficient are improved, and the negative ion emission capacity is improved. The experimental result shows that the performance of the tourmaline after being treated is obviously higher than that of natural tourmaline.
In addition, nano anatase type TiO2The photocatalytic material is the most ideal photoactive semiconductor material at present, has a forbidden bandwidth of 3.2ev, is excellent in photocatalytic performance and safe, and is widely applied to the fields of water purification, air purification and the like in Japan and other countries.
When TiO is present2Generates electrons e when irradiated by ultraviolet rays-Or a cavity h+。
Namely:
wherein: cavities of the wafer Has strong oxidizability, and can oxidize and degrade organic substances
Electronic device So as to decompose organic matters and have the antibacterial and bacteriostatic effects.
The test shows that: is simultaneously nano TiO2The particle size and dispersion of the photocatalytic material in the support have a significant effect on its photoactivity. Therefore, the nano anatase TiO with the grain diameter less than or equal to 10nm is selected in the formula of the invention2The photocatalytic material can enhance the degradation of formaldehyde, ammonia, benzene, etc. by the high-efficiency multifunctional negative ion additive,VOC and other odor and odor, and enhance the antibacterial and bacteriostatic effects.
In addition, the inventor also discovers through experimental research that the tourmaline ultrafine powder is a charged body of a permanent electrode, so the tourmaline ultrafine powder is easy to agglomerate and causes the contact short circuit neutralization of the anode and the cathode of adjacent particles, according to the probability principle, the probability of the short circuit neutralization of the pure tourmaline ultrafine powder is about 50 percent, so the pure tourmaline ultrafine powder needs to be well dispersed and separated, topaz is a common gem, the hardness is high, the resistivity is high, the tourmaline micropowder particles can be fully separated by adding a small amount of topaz micropowder, and the probability of the action of the tourmaline particles can be improved by adding the topaz micropowder into a coating.
In addition, the inventors have found that BaTiO3Also has spontaneous polarization characteristic like tourmaline, thus has the capability of generating negative ions, and has complementarity with tourmaline, and small amount of BaTiO is added3Can further enhance the effect of the tourmaline.
In addition, the titanium dioxide and silicon dioxide superfine powder (less than or equal to 0.5 mu m) can also play a certain role in dispersing and separating the tourmaline micropowder, but the separating effect of the tourmaline superfine powder is poorer than that of the topaz micropowder, and the tourmaline superfine powder can be used as a filler in an additive. In addition, the titanium dioxide micropowder also has the whitening effect and is more suitable for being used in white paint.
The anionic additive of the present invention may be prepared in the form of slurry, for example, the composition of the above-mentioned embodiment (3). The slurry type negative ion paint additive can be prepared by mixing the mixed superfine powder with an anionic dispersant, glycol and water according to a specified proportion. The additive in the form of a paste is more convenient to use and is particularly suitable for use in aqueous coatings such as latex paints.
Compared with the prior art, the invention has the following beneficial effects:
1. the anion generating capacity is stronger, so the dosage is less and the effect is high.
2. No radioactive hazard exists.
3. Can more effectively remove formaldehyde, ammonia, benzene, VOC and other gases with peculiar smell.
Detailed Description
The present invention is further explained below by way of examples.
Examples 1 to 5
In each of examples 1-5, lithium tourmaline was used, and the ingredients were mixed in the weight percentages listed in table 1 and mixed well.
TABLE 1 ingredient ratios of examples 1-5
Note: the data in the table are in% by weight
Then, 200g each of the negative ion coating additive powders obtained in examples 1 to 5 was uniformly spread out and placed in a volume of 0.5m3After 24 hours, the negative ion concentration in the can was measured using a model 1C-1000 air ion tester at room temperature of 25℃ and a relative humidity of 55%, and the results obtained are shown in table 2. It should be noted that for comparison, the tourmaline in examples 1 to 5 of Table 1 is divided into two cases of electron beam treatment and non-electron beam treatment, in which case defocused electron beam is used, and the parameters at the time of treatment are as follows:
electron beam acceleration voltage 30kV
Electron beam current 150mA
The electron beam irradiation area is 6cm2
The thickness of the powder is 1cm
Powder longitudinal moving speed 1 m/min
The results obtained with the electron beam treated and untreated tourmaline powders are shown together in table 2.
TABLE 2 measurement results of examples 1 to 5
| Whether or not tourmaline powder is treated by electron beam | Concentration of negative ions (per cm)3) | |
| Example 1 | Untreated | 800 |
| Treatment of | 1200 | |
| Example 2 | Untreated | 1100 |
| Treatment of | 1400 | |
| Example 3 | Untreated | 1200 |
| Treatment of | 1600 | |
| Example 4 | Untreated | 1400 |
| Treatment of | 1700 | |
| Example 5 | Untreated | 1600 |
| Treatment of | 2100 |
As can be seen from the results in tables 1 and 2, in examples 1 to 5, the tourmaline of the composition of the same composition ratio can achieve a better negative ion releasing effect after the electron beam treatment. It can also be seen that when BaTiO is used3Substituted TiO2Part of the micropowder (example 2) or topaz instead of TiO2Even a part of the fine powder (example 3) was found to exhibit a good effect. In addition, when the yellow jade and the BaTiO are used together3Substituted TiO2Part of the ultrafine powderWhen (example 4) is given, the better results are obtained, while topaz and BaTiO are used3Substituted TiO2The effect obtained was particularly good when the majority of the particles were ultrafine (example 5).
Example 6
The mixed ultrafine powder of example 4 was subjected to electron beam activation strengthening treatment using a defocused electron beam under the same conditions as those used in examples 1 to 5. Then, the mixed ultrafine powder subjected to electron beam treatment was mixed with sodium polyacrylate (as an anionic dispersant), ethylene glycol and deionized water in the proportions shown in table 3 to obtain an anionic coating additive slurry.
TABLE 3 slurry composition of anioniccoating additives
Note: the data in the table are in% by weight
Then, 2 wt% of the slurry of the negative ion coating additive of this example was added to a commercially available interior wall latex paint of Nippon brand to prepare a coating film having a size of 300X 300mm (coating amount of 150-2) And 6 blocks. In a 200-liter simulation chamber, the concentration of the negative ions in the simulation chamber is measured to be 480/cm in advance3. Then, 6 pieces of the coating film are put into the simulation chamber, the simulation chamber is sealed and placed for 24 hours, and then the concentration of negative ions in the simulation chamber is measured to be 1600/cm3。
Therefore, the negative ion paint additive can effectively generate negative ions when being practically applied to the interior wall paint.
Example 7
The removal rates of the three gases were determined by artificially poisoning formaldehyde, ammonia and benzene vapors in a 200-liter simulated chamber, measuring the contents of the three gases contained therein, adding 6 pieces of the negative ion additive-containing coating film sheet as in example 6, and hermetically leaving the film for 48 hours to measure the contents of the three gases. The results obtained are shown in Table 4.
TABLE 4Detoxification effect of anion additive
| Formaldehyde (I) | Ammonia | Benzene and its derivatives | |
| Content of membrane before placing | 0.43mg/m3 | 1.57mg/m3 | 0.32mg/m3 |
| Content of membrane after standing for 48 hours | 0.033mg/m3 | 0.10mg/m3 | 0.038mg/m3 |
| Removal rate of toxic gas | 93.4％ | 93.6％ | 88.2％ |
As can be seen from the results in Table 4, the coating material containing the anionic coating material additive of the present invention has a high ability to remove several toxic gases (formaldehyde, ammonia, benzene) which are generally common in the interior decoration of living rooms.
Claims (6)
1. An anion paint additive is characterized by comprising the following components:
the weight of the particle size of the components
40-60 microns of tourmaline superfine powder with the diameter less than or equal to 1 mu m
Nano TiO 22The photocatalytic powder is less than or equal to 10nm and 0.5-5
The topaz ultra-fine powder is less than or equal to 3 mu m 2-35
The titanium dioxide and/or silicon dioxide superfine powder is less than or equal to 0.5 mu m, and the balance is
Moreover, the tourmaline superfine powder is subjected to defocusing electron beam activation strengthening treatment in advance, and the treatment parameters are as follows:
electron beam acceleration voltage 10-50KV
Electron beam current 100-
The electron beam irradiation area is 2-10cm2
The thickness of the powder is 0.5-2cm
The longitudinal moving speed of the powder is 0.5-2 m/min.
2. The anionic coating material additive as claimed in claim 1,it is characterized in that the material also contains BaTiO with the grain diameter less than or equal to 1 mu m30.5-5 wt% of the superfine powder.
3. The negative ion paint additive according to claim 1 or 2, further comprising an anionic dispersant, ethylene glycol and water, wherein when a mixture of all the components in claim 1 or 2 is used as the ultrafine mixed powder, the weight percentages of the components are as follows:
the weight of the ingredients
Mixed superfine powder 40-60
Anionic dispersant 0.2-1
Ethylene glycol 0.1-0.3
The balance of water.
4. The negative ion paint additive as claimed in claim 1 or 2, wherein the tourmaline is at least one selected from the group consisting of lithium tourmaline, magnesium tourmaline, and iron tourmaline.
5. The anionic paint additive of claim 3 wherein the anionic dispersant is sodium polyacrylate.
6. The negative ion paint additive as claimed in claim 4, wherein the tourmaline is a lithium tourmaline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153116 CN1197920C (en) | 2003-08-07 | 2003-08-07 | Negalive ion paint additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153116 CN1197920C (en) | 2003-08-07 | 2003-08-07 | Negalive ion paint additive |
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| Publication Number | Publication Date |
|---|---|
| CN1478828A true CN1478828A (en) | 2004-03-03 |
| CN1197920C CN1197920C (en) | 2005-04-20 |
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|---|---|---|---|
| CN 03153116 Expired - Fee Related CN1197920C (en) | 2003-08-07 | 2003-08-07 | Negalive ion paint additive |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303177C (en) * | 2005-06-30 | 2007-03-07 | 周祖全 | Anionic powder and anionic environmental protection adhesive |
| CN1308069C (en) * | 2004-08-31 | 2007-04-04 | 中国建筑材料科学研究院 | High activity photo catalyzed air purifying powder material and its preparation method and application |
| CN100429276C (en) * | 2006-12-13 | 2008-10-29 | 上海三瑞化学有限公司 | Asphalt base ground material capable of purifying air |
| WO2011134209A1 (en) * | 2010-04-26 | 2011-11-03 | 华南再生资源（中山）有限公司 | Preparation method of power plastic masterbatch particles and plastic products therefrom |
| CN101508868B (en) * | 2009-03-24 | 2011-12-28 | 临汾铁环漆业有限公司 | Watersoluble closed methanal paint |
| CN102504662A (en) * | 2011-11-23 | 2012-06-20 | 杨震源 | Anion coating material and preparation method thereof |
| CN102618169A (en) * | 2011-01-31 | 2012-08-01 | 魏保利 | Natural coating composition |
| CN103586948A (en) * | 2013-10-25 | 2014-02-19 | 郴州四方立投资有限公司 | Anion air purification slurry for wood modification and preparation method thereof |
| CN104479440A (en) * | 2014-12-22 | 2015-04-01 | 东莞市罗曼罗兰电器科技有限公司 | Paint capable of releasing negative ions as well as preparation method and spraying technology thereof |
| CN110229590A (en) * | 2019-05-25 | 2019-09-13 | 新乡市永华塑粉有限公司 | A kind of powdery paints that can discharge anion |
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| CN117658612B (en) * | 2023-12-05 | 2024-07-16 | 宜兴市海王陶瓷研究所 | Super-induction functional material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1308069C (en) * | 2004-08-31 | 2007-04-04 | 中国建筑材料科学研究院 | High activity photo catalyzed air purifying powder material and its preparation method and application |
| CN1303177C (en) * | 2005-06-30 | 2007-03-07 | 周祖全 | Anionic powder and anionic environmental protection adhesive |
| CN100429276C (en) * | 2006-12-13 | 2008-10-29 | 上海三瑞化学有限公司 | Asphalt base ground material capable of purifying air |
| CN101508868B (en) * | 2009-03-24 | 2011-12-28 | 临汾铁环漆业有限公司 | Watersoluble closed methanal paint |
| WO2011134209A1 (en) * | 2010-04-26 | 2011-11-03 | 华南再生资源（中山）有限公司 | Preparation method of power plastic masterbatch particles and plastic products therefrom |
| US8927628B2 (en) | 2010-04-26 | 2015-01-06 | South China Reborn Resources (Zhongshan) Co., Ltd. | Method for fabricating energy plastic masterbatch and plastic product derived therefrom |
| CN102618169A (en) * | 2011-01-31 | 2012-08-01 | 魏保利 | Natural coating composition |
| CN102618169B (en) * | 2011-01-31 | 2014-07-09 | 山西亮龙涂料有限公司 | Natural coating composition |
| CN102504662B (en) * | 2011-11-23 | 2013-07-31 | 杨震源 | Anion coating material and preparation method thereof |
| CN102504662A (en) * | 2011-11-23 | 2012-06-20 | 杨震源 | Anion coating material and preparation method thereof |
| CN103586948A (en) * | 2013-10-25 | 2014-02-19 | 郴州四方立投资有限公司 | Anion air purification slurry for wood modification and preparation method thereof |
| CN104479440A (en) * | 2014-12-22 | 2015-04-01 | 东莞市罗曼罗兰电器科技有限公司 | Paint capable of releasing negative ions as well as preparation method and spraying technology thereof |
| CN110229590A (en) * | 2019-05-25 | 2019-09-13 | 新乡市永华塑粉有限公司 | A kind of powdery paints that can discharge anion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1197920C (en) | 2005-04-20 |
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