CN104028409B - A kind of method utilizing nano-calcium carbonate absorption coating cloud - Google Patents
A kind of method utilizing nano-calcium carbonate absorption coating cloud Download PDFInfo
- Publication number
- CN104028409B CN104028409B CN201410255427.6A CN201410255427A CN104028409B CN 104028409 B CN104028409 B CN 104028409B CN 201410255427 A CN201410255427 A CN 201410255427A CN 104028409 B CN104028409 B CN 104028409B
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- nano
- coating cloud
- formed body
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
Abstract
A kind of method utilizing nano-calcium carbonate absorption coating cloud, first prepares into required nano-calcium carbonate formed body by nano-calcium carbonate；Then it is positioned in coating cloud environment after nano-calcium carbonate formed body being closed, densitometer is also positioned in coating cloud environment simultaneously, measures the initial concentration of coating cloud；The formed body of closing is opened, is opening period, observing the reading of densitometer, judge nano-calcium carbonate is to whether the absorption of spraying has reached capacity and whether changed nano-calcium carbonate formed body according to the reading of densitometer；The present invention makes full use of the absorbability of the huge specific surface area of nano-calcium carbonate and excellence and coating cloud is carried out seizure process；Nano-calcium carbonate after absorption spraying simultaneously can as, in additive application to coating, greatly having saved cost after reprocessing；And nano-calcium carbonate shows good long duration, when providing use with the form of formed body, its shape is easily worked, and is suitable for large-scale production and application。
Description
Technical field
The present invention relates to a kind of method adsorbing coating cloud, be specifically related to a kind of method utilizing nano-calcium carbonate absorption coating cloud。
Background technology
In vehicle spray painting field, adopt wet coating techniques that the coating cloud produced after vehicle spray painting is processed traditionally, this technology mainly utilizes liquid substance (Ru Shui, oil, organic solution or inorganic solution) that coating cloud is caught, and processes after being dissolved in liquid again。But utilizing the method to need to consume substantial amounts of energy, operating cost is high, and working area is seriously polluted, it is impossible to meet environmental requirement simultaneously。And the method is poor to the disposal ability of coating cloud, its coating cloud is captured after dissolving and is also required to reprocess, its complex process and be difficult to recycle。
Current a lot of auto production lines start with dry type spraying technology and unnecessary coating cloud are recycled。Dry type lacquering technologies mainly utilizes limestone that coating cloud is filtered absorption, and some meetings add one coating cloud filter cotton before utilizing limestone absorption, to improve the Filtration Adsorption ability to coating cloud。But find in application process, limestone make consumption very big, the limestone after its absorption coating cloud also reduces as the value of construction material simultaneously, it is impossible to recycling。
Along with the development of nanotechnology, utilize nano level material that coating cloud recycles the attention starting to be subject to people in dry type spraying technology。Current existing people utilizes activated carbon that coating cloud is recycled。But the service life of activated carbon is limited, it is necessary to frequently change to keep it to effective absorbability of spraying, drastically increase cost。
Summary of the invention
In order to solve above-mentioned prior art Problems existing, it is an object of the invention to provide a kind of method utilizing nano-calcium carbonate absorption coating cloud, make full use of nano-calcium carbonate huge specific surface area and coating cloud is carried out seizure process so that it is there is good absorption property。Nano-calcium carbonate after absorption spraying simultaneously can as, in additive application to coating, greatly having saved cost after reprocessing。And nano-calcium carbonate shows good long duration, when providing use with the form of formed body, its shape is easily worked, and is suitable for large-scale production and application。
In order to achieve the above object, the present invention adopts the following technical scheme that
A kind of method utilizing nano-calcium carbonate absorption coating cloud, comprises the steps:
Step 1: nano-calcium carbonate is prepared into required nano-calcium carbonate formed body, described nano-calcium carbonate formed body utilizes carrier formed or do not utilize carrier to be formed；
Step 2: be positioned in coating cloud environment after nano-calcium carbonate formed body is closed, densitometer be also positioned in coating cloud environment simultaneously, measure the initial concentration of coating cloud；
Step 3: opened by the formed body of closing, is opening period, is observing the reading of densitometer,
If the reading of densitometer is not up to 0, but the reading of densitometer is held essentially constant, then now the absorption of spraying is reached capacity by nano-calcium carbonate, if desired continues absorption coating cloud and then changes other nano-calcium carbonate formed body；
If the reading Rapid Variable Design of densitometer reaches 0, then the coating cloud in coating cloud environment has been adsorbed, but the absorption that nano-calcium carbonate is to spraying is not up to saturated, additionally it is possible to reuse；
If the reading of densitometer is slowly varying reaches 0, then the coating cloud in coating cloud environment has been adsorbed, and the absorption of spraying is also basically reached saturated by nano-calcium carbonate。
If described nano-calcium carbonate formed body utilizes carrier to be formed, then carrier is the cellular of through-hole structure, and the surface that nano-calcium carbonate is attached to honeycomb texture is fabricated to a kind of formed body nano-calcium carbonate net。
If described nano-calcium carbonate formed body does not utilize carrier to be formed, then formed body be shaped as spherical, elliposoidal or irregularly shaped。
In described nano-calcium carbonate formed body, the saturated extent of adsorption of spraying is by the nano-calcium carbonate of unit mass:
AQ=(Σ (Ci1-Ci2))*V/M
Wherein: Ci1、Ci2The initial concentration respectively sprayed in i & lt adsorption process and adsorption equilibrium concentration, V is the volume of coating cloud environment, and M is the nano-calcium carbonate quality in nano-calcium carbonate formed body。
The particle diameter of described nano-calcium carbonate is 10nm～100nm。
Compared to the prior art, the invention have the advantages that
(1) making full use of the huge specific surface area of nano-calcium carbonate, drastically increase its absorbability to spraying, what greatly reduce nano-calcium carbonate makes consumption, thus effectively having saved cost。
(2) nano-calcium carbonate after absorption spraying be can be recycled, meet the demand to environmental protection day by day improved。
(3) nano-calcium carbonate has good long duration, when providing use with the form of formed body, it is not necessary to frequently change。
(4) the formed body shape that nano-calcium carbonate makes can arbitrarily be processed, it is easy to makes the shape of various complexity, is suitable for large-scale production and application。
(5) particle diameter of nano-calcium carbonate can be regulated in the scope of 10nm～100nm by formula, is suitable for the coating cloud to producing under different condition and carries out adsorption treatment。
Accompanying drawing explanation
Fig. 1 is the microstructure schematic diagram of nano-calcium carbonate in the present invention。
Fig. 2 is the schematic diagram of nano-calcium carbonate calcium powder in the present invention。
Fig. 3 is the schematic diagram of a kind of formed body nano-calcium carbonate net according to present invention design。
Fig. 4 is very according to the change curve of spray concentration in front four adsorption processes of a kind of formed body nano-calcium carbonate net of present invention design。
Detailed description of the invention
First principles of the invention and work process are done as described below:
Nano-calcium carbonate is a kind of nano level porous material, and it has highly developed hole structure, and its concrete microstructure schematic diagram is as shown in Figure 1。Due to the super-refinement of calcium carbonate particle, its crystal structure and Electronic Structure change, and create ordinary calcium carbonate, quantum size effect, small-size effect, skin effect and the macroscopic quantum effect that namely limestone does not have。The loose structure of nano-calcium carbonate makes it have huge specific surface area simultaneously, when adsorbing utilizing it that coating cloud is filtered, can make to be fully contacted between nano-calcium carbonate and coating cloud, thus improving the nano-calcium carbonate absorption property to coating cloud。And the aperture of nano-calcium carbonate can be passed through formula and be adjusted between 10nm～100nm, therefore can the coating cloud that produce under different condition be effectively treated。
It is illustrated in figure 2 the schematic diagram of nano-calcium carbonate calcium powder, is made into required formed body, be then placed in coating cloud environment, when coating cloud is through nano-calcium carbonate, can by the duct naturally sucking nano-calcium carbonate。This be due to molecule between attractive interaction just as magnetic force, coating cloud can be produced powerful captivation by a large amount of molecules on the wall of nano-calcium carbonate duct, thus reaching the purpose being drawn in aperture by coating cloud。
Evaluating the nano-calcium carbonate most important index of absorbability to spraying is the saturated extent of adsorption of nano-calcium carbonate。Its experimental calculation process is as follows: put into the M gram of nano-calcium carbonate closed in the experimental cabin that volume is V liter, then to spray injection in experimental cabin, sampling obtains the initial concentration C of spraying1。Open wide the nano-calcium carbonate absorption spraying closed, after certain time, find out the nano-calcium carbonate equilibrium concentration C to spraying absorption2。It is repeatedly injected spraying i time, opens wide nano-calcium carbonate i time。Wherein during i & lt absorption, the concentration of spraying is held essentially constant, and namely thinks that the absorption of spraying is reached capacity by nano-calcium carbonate。Then the saturated extent of adsorption of spraying is by the nano-calcium carbonate of unit mass:
AQ=(Σ (Ci1-Ci2))*V/M
Wherein Ci1、Ci2The initial concentration respectively sprayed in i & lt adsorption process and adsorption equilibrium concentration。
Under below in conjunction with the drawings and specific embodiments, the present invention is described in further detail。
As it is shown on figure 3, a kind of method utilizing nano-calcium carbonate absorption coating cloud of the present embodiment, the honeycomb adopting through-hole structure is carrier, and the surface that nano-calcium carbonate is attached to honeycomb texture is fabricated to a kind of formed body nano-calcium carbonate net。The nano-calcium carbonate net so made has the advantages that bulk density is little, adsorption efficiency is high。Nano-calcium carbonate net is placed in coating cloud environment, when coating cloud is by honeycomb texture, will be fully contacted with the nano-calcium carbonate being attached on honeycomb texture, the huge captivation utilizing the molecule on the wall of nano-calcium carbonate duct that coating cloud is produced, coating cloud is sucked in aperture。Due to the specific surface area that nano-calcium carbonate is huge so that it is coating cloud to be had good Filtration Adsorption effect。
It is illustrated in figure 4 spray concentration (mg/m in front four adsorption processes3) change curve。In first time adsorption process, owing to initial spray concentration is relatively low, nano-calcium carbonate almost can reach the absorption completely to spraying。Considering that nano-calcium carbonate had be carried out first time absorption, in second and third adsorption process, though being not reaching to spraying is adsorbed completely, but spray concentration also has and obviously reduces。And in the 4th adsorption process, spray concentration is kept essentially constant, i.e. the adsorbance it is believed that nano-calcium carbonate has reached capacity, can obtain its value according to the computing formula of saturated extent of adsorption is 623ug/g。
Above-mentioned is only with formed body nano-calcium carbonate net for specific embodiment; it is pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be protection scope of the present invention。
Claims (5)
1. the method utilizing nano-calcium carbonate absorption coating cloud, it is characterised in that: comprise the steps:
Step 1: nano-calcium carbonate is prepared into required nano-calcium carbonate formed body, described nano-calcium carbonate formed body utilizes carrier formed or do not utilize carrier to be formed；
Step 2: be positioned in coating cloud environment after nano-calcium carbonate formed body is closed, densitometer be also positioned in coating cloud environment simultaneously, measure the initial concentration of coating cloud；
Step 3: opened by the formed body of closing, is opening period, is observing the reading of densitometer,
If the reading of densitometer is not up to 0, but the reading of densitometer remains unchanged, then now the absorption of spraying is reached capacity by nano-calcium carbonate, if desired continues absorption coating cloud and then changes other nano-calcium carbonate formed body；
If the reading Rapid Variable Design of densitometer reaches 0, then the coating cloud in coating cloud environment has been adsorbed, but the absorption that nano-calcium carbonate is to spraying is not up to saturated, additionally it is possible to reuse；
If the reading of densitometer is slowly varying reaches 0, then the coating cloud in coating cloud environment has been adsorbed, and the absorption of spraying is also reached capacity by nano-calcium carbonate。
2. a kind of method utilizing nano-calcium carbonate absorption coating cloud according to claim 1, it is characterized in that: if described nano-calcium carbonate formed body utilizes carrier to be formed, then carrier is the cellular of through-hole structure, and the surface that nano-calcium carbonate is attached to honeycomb texture is fabricated to nano-calcium carbonate net。
3. according to claim 1 a kind of utilize nano-calcium carbonate absorption coating cloud method, it is characterised in that: if described nano-calcium carbonate formed body does not utilize carrier to be formed, then formed body be shaped as spherical, elliposoidal or irregularly shaped。
4. a kind of method utilizing nano-calcium carbonate absorption coating cloud according to claim 1, it is characterised in that: in described nano-calcium carbonate formed body, the saturated extent of adsorption of spraying is by the nano-calcium carbonate of unit mass:
AQ=(Σ (Ci1-Ci2))*V/M
Wherein: Ci1、Ci2The initial concentration respectively sprayed in i & lt adsorption process and adsorption equilibrium concentration, V is the volume of coating cloud environment, and M is the nano-calcium carbonate quality in nano-calcium carbonate formed body。
5. a kind of method utilizing nano-calcium carbonate absorption coating cloud according to claim 1, it is characterised in that: the particle diameter of described nano-calcium carbonate is 10nm～100nm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255427.6A CN104028409B (en) | 2014-06-10 | 2014-06-10 | A kind of method utilizing nano-calcium carbonate absorption coating cloud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255427.6A CN104028409B (en) | 2014-06-10 | 2014-06-10 | A kind of method utilizing nano-calcium carbonate absorption coating cloud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104028409A CN104028409A (en) | 2014-09-10 |
| CN104028409B true CN104028409B (en) | 2016-06-22 |
Family
ID=51459542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410255427.6A Active CN104028409B (en) | 2014-06-10 | 2014-06-10 | A kind of method utilizing nano-calcium carbonate absorption coating cloud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104028409B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200040C (en) * | 2003-06-19 | 2005-05-04 | 杭州鸿雁电器公司 | Active organic-inorganic nano calcium carbonate mixture and its prepn process |
| DE102005013711B4 (en) * | 2005-03-24 | 2022-07-28 | Dürr Systems Ag | Plant for painting objects |
| CN102443305A (en) * | 2011-10-18 | 2012-05-09 | 池州市正宇新能源科技开发有限公司 | Environment-friendly high-temperature resistant glue powder |
| CN103756467B (en) * | 2014-01-10 | 2016-01-20 | 大连工业大学 | Photochemical catalysis and chemical oxidation carry out the preparation method of the environment protection interior wall finish paint of catalyzed degradation formaldehyde in air simultaneously |
-
2014
- 2014-06-10 CN CN201410255427.6A patent/CN104028409B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104028409A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhou et al. | Preparation of CuWO4@ Cu2O film on copper mesh by anodization for oil/water separation and aqueous pollutant degradation | |
| CN108423776B (en) | Method for removing heavy metals and organic matters through capacitive deionization coupling electrocatalysis cooperation | |
| CN105645408A (en) | Process using date pits to prepare nitrogen-doped porous carbon material and preparation method of super-capacitor electrode | |
| CN104151600B (en) | Preparation method of super-hydrophobic magnetic sponge | |
| CN104436760A (en) | Magnetic response type high-efficiency oil-water separation fiber membrane and preparation method thereof | |
| CN101492254A (en) | Method for producing high-surface reinforced Raman scattering active single-layer silver nanoparticle film | |
| CN103127914A (en) | Magnetic chitosan microsphere treatment agent and preparation method thereof | |
| Ma et al. | High specific area activated carbon derived from chitosan hydrogel coated tea saponin: One-step preparation and efficient removal of methylene blue | |
| CN108198696B (en) | The preparation method and applications of porous carbon materials | |
| CN104383900B (en) | The preparation method of the corn cob compound adsorbent that polypyrrole is modified | |
| CN202538514U (en) | Composite filter material containing nano silver | |
| Niu et al. | Preparation and characterization of magnetic modified bone charcoal for removing Cu2+ ions from industrial and mining wastewater | |
| CN105597667A (en) | Preparation method of spherical suspending attapulgite adsorbent and application thereof for treating heavy metals in industrial wastewater | |
| Xie et al. | Freestanding MoS2@ carbonized cellulose aerogel derived from waste cotton for sustainable and highly efficient particulate matter capturing | |
| CN106902742A (en) | A kind of porous activated carbon supported magnesium oxide composite and its preparation method and application | |
| Wang et al. | Graphitic carbon nitride/metal-organic framework composite functionalized cotton for efficient oil-water separation and dye degradation | |
| Fu et al. | Study on the effect of oxidation-ultrasound treatment on the electrochemical properties of activated carbon materials | |
| CN113697859A (en) | Cladding hollow copper ferrite nanosphere material and preparation method and application thereof | |
| CN105536688A (en) | Magnetic core nanoparticle coated by copper hydroxide, and preparation and application thereof | |
| Jiang et al. | Corrosion-resistant porous hydrophobic PVDF-CBC foam for the treatment of oil-water separation | |
| CN104028409B (en) | A kind of method utilizing nano-calcium carbonate absorption coating cloud | |
| Yang et al. | One-dimensional electrospinning nanomaterials toward capacitive deionization: fundamentals, development, and perspectives | |
| Dang et al. | Bi-etched MIL-125 promotes visible-light-driven photocatalytic performance based on the surface plasmon resonance and spatial confinement effects | |
| Ye et al. | Surface migration of Pb (II) from water and soil using an aerogel/graphite felt primary cell system | |
| Fu et al. | Solar enhanced uranium extraction from seawater with the efficient strategy of MXene loaded nano-porous polyamidoxime membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |