CN105478075A - Air-purifying modified nano-composite material for aqueous system - Google Patents
Air-purifying modified nano-composite material for aqueous system Download PDFInfo
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Abstract
The present invention relates to an air-purifying modified nano-composite material for aqueous system. The air-purifying modified nano-composite material is prepared by the following steps: 1. coupling agents are used to treat the surface of a nano-composite material, and the nano-composite material is a mixture of nano-palygorskite, nano-sepiolite powder and nano-negative ion powder; and 2. the nano-composite material is subjected to surface modification with maleic anhydride-styrene-polyether quaternary ammonium salt copolymer, thereby obtaining the air-purifying modified nano-composite material for aqueous system. The air-purifying modified nano-composite material is super strong in adsorption capacity, can continuously and effectively remove benzene, formaldehyde, ketone, ammonia and other harmful gases and peculiar smell volatilized from indoor decoration materials, also has ecological negative ions, can kill bacteria and molds, does not produce secondary pollution, and improves indoor air environment; the air-purifying modified nano-composite material has excellent dispersity and compatibility in the aqueous system, and is widely used in the aqueous interior and exterior wall paint, aqueous carpentry paint, aqueous industrial paint, aqueous ink, aqueous glue and other aqueous systems.
Description
Technical field
The present invention relates to the preparation method of a kind of water-based system with the modified nano composite material purified air, belong to nano-functional material and technical field of surface.
Background technology
All one's life of people, most time live and work was in indoor, the environmental pollution that interior decoration causes causes sick, residual, the dead phenomenon of people to become social concern, indoor environmental pollution is put into one of " ten large killers ", these dusty gas are very big to body effect, easily cause breathing problem, cancer, leukaemia, sacred disease, especially pregnant woman, children, old man are endangered seriously.
Usually, people get used to finishing rear venting two months, then move in.But indoor decoration pollution is the chemical pollutant such as formaldehyde, benzene, ammonia mainly, and this pollutant release period reaches 15 years most, within two months, just can deal with problems absolutely not, in full summer air-conditioning and severe winter heating installation closed room in, owing to lacking outdoor new wind, its harm is more serious! When you long period on newly-decorated new family or new office, hotel, meeting room, furniture design and making, building materials market and other places time, whether you have the symptoms such as headache, dim eyesight, cough, uncomfortable in chest, Nausea and vomiting, and these all indoor stealthy killer's air pollutants caused.The main pollution of room air is from the materials such as building, decoration and furniture, and comprise formaldehyde, benzene, ammonia etc., wherein the harm of formaldehyde pollution to health is maximum.
The method purified air in the market has: 1, bamboo charcoal, active carbon adsorption, but the adsorption capacity of bamboo charcoal, active carbon is very limited, only some are had to act on to benzene, the adsorption effect of PARA FORMALDEHYDE PRILLS(91,95) is also bad, and there is the saturated problem of absorption, when temperature is low, uptake is relatively large, and temperature raises and can discharge again.
2, formaldehyde scavenger or dissolve formaldehyde enzyme, these " remove " formaldehyde by the method for chemical reaction, the essence of this method target substance is reduced toxicity or is converted into innocuous substance, formaldehyde can be oxidized to formic acid, also methyl alcohol can be reduced to, the toxicity of these two kinds of materials still exists, and easily causes secondary pollution.As the formaldehyde scavenger of some strong oxidizing property, can oxidation of formaldehyde, but itself easily decomposes, be sprayed on and plank can damage timber do not say, and just lose usefulness within a few hours, can not realize " spray is escaped forever ".Moreover the scavenger spray of high concentration in atmosphere, and can produce new contamination hazard to people, other oxidant, reducing agent also all effectively can not remove formaldehyde, and can introduce similar secondary pollution.
3, catalysis material, refer to issue a raw photochemically reactive based semiconductor catalyst material in the effect of light, comprise many oxide, the sulfide semiconductors such as titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, cadmium sulfide, especially nano titanium oxide application at most; In theory, photocatalyst is a kind of top quality except formaldehyde products, and in fact photocatalyst will play a role, have ultraviolet to excite, photocatalyst in night and without visible ray without any effect, and ultraviolet in room, can not be there is always, especially in some drawers, the place that the Form aldehyde release such as the cupboard back side are the most serious, can not see light especially, which limits the effect of photocatalyst.Secondly, different types of photocatalyst effect is also different, is just the photocatalyst of one species, and granular size also determines actual effect, the better (nano-TiO of the less effect of particle in general
2average grain diameter just effective within 10nm).The particle of photocatalyst is very small in addition, is very easily suspended in air, cannot with the naked eye see just as dust, also cannot discover, easily cause secondary pollution, very likely damage human lung even if suck.Photocatalyst is also had to have the performance of decomposing organic matter matter, to any organism as real leather products, hair grass and high-grade clothes, skin have detrimental effect, and photocatalyst manufacturer avoids all mention of, also consumer is not informed, as long as even misguide the consumer, photocatalyst has light all right, behavior like this, should be scolded.In fact photocatalyst is to the dusty gas limited efficiency removed in air, and therefore developed country is few is at present used as civilian catalysis material by them.
CN102319446A discloses a kind of material purified air, it is characterized in that this material for air purification is Powdered, its fundamental component is the active carbon with strong absorption property, has four composition parts: the first component is be the mixture (antibacterial) containing nano-Ag particles and active carbon; Second component is containing the mixture (photocatalyst) of nanometer titanium dioxide (titanium dioxide) with active carbon; 3rd component is the mixture (far infrared) containing nano-ceramic powder and active carbon; 4th component is the mixture (catalyst) containing high rare earth and active carbon.And it is little to illustrate that this scavenging material has air drag, germicidal efficiency is high, dedusting, removing and harmful gas, except ultrafine dust good purification, can random molding, the advantages such as service life is longer, overcome over the secondary pollution environmental problem adopting chemical method process and electric installation process.But the scavenging material Nano Silver of this invention is easy to change, catalysis material exists technological deficiency, secondary pollution and rare earth high in cost of production shortcoming.
CN101348628A discloses a kind of thick coating material and compound method thereof of tool air-cleaning function, this coating ornament materials contains porous adsorbing material and composite photocatalyst material, porous adsorbing material is one or the combination of molecular sieve, sepiolite, attapulgite, diatomite and zeolite, and composite photocatalyst material is nanoscale TiO
2with the complex of polar material tourmaline, or nanoscale TiO
2with the complex of the natural micropore mineral materials such as sepiolite, molecular sieve, zeolite.This coating ornament materials can remove the pernicious gas such as formaldehyde in air, toluene, has Environmental Health function, and continuous and effective.But the coating ornament materials of this invention still exists catalysis material technological deficiency and secondary pollution, these sorbing materials are not nanoscales in addition, not through purifying, surface is untreated, thus there is limited sorption capacity, the shortcoming such as easily to reunite, compatibility is bad.
Summary of the invention
For the technical problem existed above, nano-attapulgite, Nano sepiolite powder and nanometer anion powder after the present invention selects purification obtain one by surface modification treatment and to purify air nano composite material.
Nano-attapulgite and Nano sepiolite powder are kind of porous ore deposit eutectic substances, and its microstructure has unique crystal regular texture, and a large amount of nanoscale hole in crystal, pore size is 2.7 ~ 9.8 Ethylmercurichlorendimides, and micropore surface band polarity.Because the venomous injurant such as benzene, dimethylbenzene, formaldehyde, carbon monoxide, sulfur dioxide, ammonia of nanoscale molecular diameter is optionally adsorbed in its nanoscale aperture, (molecular diameter of formaldehyde, ammonia, benzene,toluene,xylene is all between 0.4 ~ 0.62 nanometer, and these compounds are all polar molecules, be exactly nano level polar compound).Nano-attapulgite and Nano sepiolite powder aperture are at 3 ~ 5 Ethylmercurichlorendimides after treatment, have superpower absorption affinity and sustainable function.Nanometer anion powder has pyroelectricity and piezoelectricity, the water of air and oxygen molecule is made ionization to occur and be converted into negative oxygen ion, thus various pernicious gas and the peculiar smell such as benzene, formaldehyde, ketone, ammonia that the art work that elimination uses in interior decoration process evaporates.Nano composite material of the present invention has superpower adsorption capacity and removes pernicious gas function, and continuous and effective, do not produce secondary pollution.
Because nano composite material is very easily reunited (after reuniting, adsorption function and removal dusty gas activity almost lost efficacy), first carry out processing the nano-powder that vacuum activating obtains modification with coupling agent; Use maleic anhydride styrene polyethers ammonium salt copolymer (SMA-AEO ammonium salt copolymer) surface modification again, make the air purification nano-material obtained have excellent dispersiveness and compatibility, meet in water-based system the pernicious gas removed in air and reach the object purified air.
In order to solve technical problem recited above, the present invention takes following technical scheme: the present invention relates to a kind of water-based system modified nano composite material purified air, comprising:
Step 1, nano combined scavenging material surface treatment: it consists of: nano-attapulgite 25% ~ 40%, Nano sepiolite powder 25% ~ 40%, nanometer anion powder 5% ~ 20%, coupling agent 2% ~ 10%; Described coupling agent is the one of silane coupler, titanate coupling agent, zirconium ester coupling agent, silicon titanium composite coupler; Its preparation technology is as follows: put into baking oven by formulation weight than by nano-attapulgite, Nano sepiolite powder, nanometer anion powder, dry 4h under 50 ~ 60 DEG C of conditions, dried nano composite powder is added in the solution being dissolved with coupling agent/ethanol, ultrasonic disperse 1h, obtained pre-dispersed liquid, pre-dispersed liquid is added in the closed container with reflux condenser and agitator, then system is warmed up to 70 ~ 80 DEG C, moderate-speed mixer reaction 24h, discharging, filter, vacuum drying activation 2h at 80 ~ 90 DEG C, obtained surface-treated composite nano-powder;
Step 2, nano combined scavenging material surface modification: it consists of: surface-treated composite nano-powder 20% ~ 35%, maleic anhydride styrene polyethers ammonium salt copolymer 6% ~ 15%, propane diols 3% ~ 10%, pH adjusting agent 0.1% ~ 0.5%, deionized water 40% ~ 60%; Its preparation technology is as follows: in high speed dispersor, add deionized water, propane diols, maleic anhydride styrene polyethers ammonium salt copolymer by formulation weight ratio, stir, add surface-treated composite nano-powder, high speed dispersion 25 ~ 40min, open nanometer sand mill circular grinding 10 ~ 12h, through laser fineness gage test median D
50it is qualified to be between 15 ~ 40nm, and adjust pH is 6.5 ~ 7.5, filters and packages, i.e. obtained a kind of water-based system modified nano composite material purified air.
The modified nano composite material purified air that the present invention obtains, there is superpower adsorption capacity, continuously and effectively can remove various pernicious gas and the peculiar smell such as benzene, formaldehyde, ketone, ammonia that the art work that uses in interior decoration process evaporates, also there is anion ecological, kill bacteria mould simultaneously, do not produce secondary pollution, improve indoor air environment; There is excellent dispersiveness and compatibility in water-based system, be widely used in the various water-based systems such as water-based coating for internal and external wall, aqueous woodware paint, water-based industrial paint, water color ink and water-base cement.
Detailed description of the invention
Prepare material according to the component formula of table 1 to implement.
Table 1: three embodiment component formula mass parts
| Material name | Example 1 | Example 2 | Example 3 |
| Nano-attapulgite | 12 | 15 | 12 |
| Nano sepiolite powder | 12 | 9 | 12 |
| Nanometer anion powder | 6 | 6 | 8 |
| Silane coupler | 1.8 | - | - |
| Titanate coupling agent | - | 2.0 | - |
| Silicon titanium composite coupler | - | - | 2.0 |
| Deionized water | 50 | 48.8 | 45.8 |
| Propane diols | 6 | 6 | 6 |
| SMA-AEO ammonium salt copolymer | 12 | 12 | 14 |
| PH adjusting agent | 0.2 | 0.2 | 0.2 |
Embodiment 1:
Step 1, put into baking oven according to the formulation weight in table 1 example 1 than nano-attapulgite, Nano sepiolite powder, nanometer anion powder, dry 4h under 50 ~ 60 DEG C of conditions, dried nano composite powder is added in the solution being dissolved with coupling agent/ethanol, ultrasonic disperse 1h, obtained pre-dispersed liquid, pre-dispersed liquid is added in the closed container with reflux condenser and agitator, then system is warmed up to 70 ~ 80 DEG C, moderate-speed mixer reaction 24h, discharging, filter, vacuum drying activation 2h at 80 ~ 90 DEG C, obtained surface-treated composite nano-powder;
Step 2, add deionized water, propane diols, maleic anhydride styrene polyethers ammonium salt copolymer according to the formulation weight in table 1 example 1 than in high speed dispersor, stir, add the surface-treated composite nano-powder that step 1 is obtained, high speed dispersion 25 ~ 40min, open nanometer sand mill circular grinding 10 ~ 12h, through laser fineness gage test median D
50it is qualified to be between 15 ~ 40nm, and adjust pH is 7.5 ~ 8.0, filters and packages, and namely obtained a kind of solid content is the water-based system modified nano composite material purified air of 30%.
Embodiment 2, embodiment 3 preparation technology is with reference to embodiment 1.
Embodiment 1, embodiment 2 and embodiment 3 technical target of the product see the following form 2.
Table 2: three embodiment technical target of the product
| Technical indicator | Example 1 | Example 2 | Example 3 |
| Outward appearance | Light gray/white liquid | Light gray/white liquid | Light gray/white liquid |
| Solid content, % | 30±2 | 30±2 | 32±2 |
| PH value | 6.5～7.5 | 6.5～7.5 | 6.5～7.5 |
| Particle diameter, nm | 18～30 | 18～30 | 20～35 |
Comparison study, chooses that 30% nano TiO 2 dispersion liquid, 30% nano-negative ion dispersion liquid and example of the present invention on the market carry out removal formaldehyde, triphen, ammonia purification efficiency, clean-up effect persistence contrast.
The preparation of sample coatings: benzene emulsion 50%, scavenging material 10%, water 40%, scavenging material is the product in example 1, example 2, example 3, and 30% nano TiO 2 dispersion liquid, 30% nano-negative ion dispersion liquid; Detect according to JCT1074-2008 " function of purifying indoor air coating material purifying property " standard method, the test result of contrast test as shown in Table 3, 4.
Table 3: the test result (having fluorescent lamp to irradiate) of contrast test
Table 4: the test result (irradiating without fluorescent lamp) of contrast test
Known by table 3,4: what the present invention obtained purify air modified nano composite material removes purification efficiency to formaldehyde in indoor air, triphen, ammonia, clean-up effect persistence is better than nano TiO 2 dispersion liquid, nano-negative ion dispersion liquid, because have the ability of superpower adsorption fouling gas in scavenging material of the present invention containing nano-attapulgite and Nano sepiolite powder, removal efficiency is high and persistence is strong; Having the function not affecting its removal dusty gas of effect in light or unglazed situation in addition, and photocatalyst do not having the function almost not removing dusty gas under illumination.
Although the present invention has been explained in detail and has quoted embodiment as proof, for those of ordinary skill in the art, the various schemes obviously can made according to above-mentioned explanation, amendment and change, within the scope that all should be included in claim.
Claims (1)
1. the water-based system modified nano composite material purified air, is characterized in that: comprise the following steps: 1, nano combined scavenging material surface treatment: it consists of: nano-attapulgite 25% ~ 40%, Nano sepiolite powder 25% ~ 40%, nanometer anion powder 5% ~ 20%, coupling agent 2% ~ 10%; Described coupling agent is the one of silane coupler, titanate coupling agent, zirconium ester coupling agent, silicon titanium composite coupler; Described preparation technology: put into baking oven than by nano-attapulgite, Nano sepiolite powder, nanometer anion powder by formulation weight, dry 4h under 50 ~ 60 DEG C of conditions, dried nano composite powder is added in the solution being dissolved with coupling agent/ethanol, ultrasonic disperse 1h, obtained pre-dispersed liquid, pre-dispersed liquid is added in the closed container with reflux condenser and agitator, then system is warmed up to 70 ~ 80 DEG C, moderate-speed mixer reaction 24h, discharging, filter, vacuum drying activation 2h at 80 ~ 90 DEG C, obtained surface-treated composite nano-powder; 2, nano combined scavenging material surface modification: it consists of: surface-treated composite nano-powder 20% ~ 35%, maleic anhydride styrene polyethers ammonium salt copolymer 6% ~ 15%, propane diols 3% ~ 10%, pH adjusting agent 0.1% ~ 0.5%, deionized water 40% ~ 60%; Described preparation technology: add deionized water, propane diols, maleic anhydride styrene polyethers ammonium salt copolymer by formulation weight ratio in high speed dispersor, stir, add surface-treated composite nano-powder, high speed dispersion 25 ~ 40min, open nanometer sand mill circular grinding 10 ~ 12h, through laser fineness gage test median D
50it is qualified to be between 15 ~ 40nm, and adjust pH is 6.5 ~ 7.5, filters and packages, i.e. obtained a kind of water-based system modified nano composite material purified air.
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| CN107138059A (en) * | 2017-06-02 | 2017-09-08 | 合肥同佑电子科技有限公司 | A kind of fume treatment auxiliary dedusting film and preparation method |
| CN107185482A (en) * | 2017-07-07 | 2017-09-22 | 中国科学院青岛生物能源与过程研究所 | It is a kind of to be used to adsorb novel clay soil based composite adsorption material of styrene waste gases and preparation method thereof |
| CN107185419A (en) * | 2017-07-04 | 2017-09-22 | 合肥市大卓电力有限责任公司 | A kind of air purifier dedusting film and preparation method |
| CN109847544A (en) * | 2019-03-15 | 2019-06-07 | 成都新柯力化工科技有限公司 | A kind of material for air purification and preparation method of efficient release anion |
| CN112144277A (en) * | 2020-10-16 | 2020-12-29 | 高梵(浙江)信息技术有限公司 | Fabric antibacterial treatment fluid and preparation method thereof |
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| CN109847544A (en) * | 2019-03-15 | 2019-06-07 | 成都新柯力化工科技有限公司 | A kind of material for air purification and preparation method of efficient release anion |
| CN112144277A (en) * | 2020-10-16 | 2020-12-29 | 高梵(浙江)信息技术有限公司 | Fabric antibacterial treatment fluid and preparation method thereof |
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Effective date of registration: 20190220 Address after: 100107 Block 704, Building 1, Territory Building, 13 Beiyuan Road, Chaoyang District, Beijing Patentee after: Beijing Tianhengjian Technology Development Co., Ltd. Address before: 528000 fan Lake Economic Development Zone, Sanshui District, Foshan, Guangdong Co-patentee before: SHAOGUAN UNION CHEMICAL CO., LTD. Patentee before: UNION (FOSHAN) CHEMICAL CO., LTD. |