CN109810211A - Resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof, aeroge wind deflector and preparation method thereof and air conditioner - Google Patents
Resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof, aeroge wind deflector and preparation method thereof and air conditioner Download PDFInfo
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- CN109810211A CN109810211A CN201811544221.XA CN201811544221A CN109810211A CN 109810211 A CN109810211 A CN 109810211A CN 201811544221 A CN201811544221 A CN 201811544221A CN 109810211 A CN109810211 A CN 109810211A
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Abstract
This application involves field of material technology, in particular to a kind of resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof, aeroge wind deflector and preparation method thereof and air conditioner.Composite particles preparation method is sufficiently mixed the following steps are included: monomer and initiator are added in organic solution, is uniformly dispersed, is obtained the first solution system；By SiO2Aeroge is added in organic solvent and is sufficiently mixed, uniform by ultrasonic disperse, obtains the second solution system；First solution system and the second solution system are uniformly mixed, microwave heating, initiated polymerization are passed through；Washing, drying, are made composite particles.Since aeroge aperture is small, porosity is high, so that it is very good that aeroge wind deflector heat insulation effect is prepared, thermal coefficient is small, heat-proof quality is excellent, wind-guiding plate surface condensation problem can be effectively solved, while because aeroge has three-dimensional netted pore structure abundant, sound wave rubs by Shi Huiyu hole wall, sound can be weakened severely, lower noise.
Description
Technical field
This application involves field of material technology, in particular to a kind of resin nucleocapsid/SiO2Aeroge composite particles and
Preparation method, aeroge wind deflector and preparation method thereof and air conditioner.
Background technique
In general, air conditioner indoor unit includes the panel body for surrounding air conditioner side, top, the back casing at rear portion, and
Positioned at front and with back casing and the close-connected front panel of panel body, the lower part of front panel is provided with air outlet, wind deflector peace
To open and close air outlet mounted in front panel or on panel body.
Air conditioner is to make that room is nice and cool, warm or air cleaning using aerial cooler, heater or air purifier
Equipment to keep internal environment preferably.In the prior art the wind deflector of air conditioner be all by single plastic cement or metal production and
At, such wind deflector heat insulation effect is bad, and heat transfer is fast, when the air after heat exchange flows through air outlet, heat insulation effect difference
Such wind deflector will lead to the non-uniform temperature of air outlet, and local temperature difference is larger, and due to the control of wind deflector multi-angle, various dimensions
Air-supply forms condensation, and be not easy to be attached on wind deflector so all angles on wind deflector are easy to produce condensed water, when out
When air port blows out wind, water droplet ejection is had.
Summary of the invention
In order to solve the above-mentioned technical problem, i.e., the condensation as caused by wind deflector material in the prior art how is solved the problems, such as
Problem provides a kind of resin nucleocapsid/SiO2The preparation method of aeroge composite particles, the resin being prepared using this method
Nucleocapsid/SiO2Aeroge composite particles, a kind of preparation method of aeroge wind deflector, the aeroge being prepared using this method
Wind deflector additionally provides a kind of air conditioner for being equipped with the aeroge wind deflector.
To achieve the goals above, according to the first aspect of the technical program, the technical program provide resin nucleocapsid/
SiO2The preparation method of aeroge composite particles.
According to the resin of the embodiment of the present application nucleocapsid/SiO2The preparation method of aeroge composite particles comprising following step
It is rapid:
It by dispersing agent, is used for the monomer of synthetic resin and initiator is added in organic solution and mixes, is uniformly dispersed, obtains the
One solution system；
By SiO2Aeroge is added in organic solvent and is sufficiently mixed, uniform by ultrasonic disperse after addition dispersing agent, obtains
Second solution system；
First solution system and the second solution system are uniformly mixed, heated while stirring, is caused between monomer
Polymerization reaction；
To be washed, dried to reaction product after reaction, resin nucleocapsid/SiO is made2Aeroge composite particles.
Further, during the second solution system is prepared, dispersed by ultrasound, the first solution system and
Second solution system after mixing, is heated by microwave.
Further, the resin nucleocapsid is PS, PP, ABS or PVC.
Further, the monomer is styrene, propylene, acrylonitrile, butadiene, vinyl chloride, methyl methacrylate, first
One of base ethyl acrylate, n-BMA, Isobutyl methacrylate, methyl acrylate, acrylic acid or one
Kind or more mixture
Further, the monomer is styrene, and the initiator is AIBN, dispersing agent PVP-K30, and organic solvent is
Volume ratio of alcohol to water example is the ethanol water of 9:1.
Further, the SiO2The mass ratio of aeroge and the styrene monomer is 1:20, PVP-K30 and SiO2Gas
The mass ratio of gel is 1:1.
Further, in the second solution system preparation process, the power of ultrasonic disperse is 500W, ultrasonic disperse time
For 15-20min.
Further, during microwave heating, mixing speed 450r/min, microwave heating power is 500W, is added
Hot temperature is 75 DEG C, heating time 100min.
To achieve the goals above, according to the second aspect of the technical program, the technical program additionally provides a kind of tree
Rouge nucleocapsid/SiO2Aeroge composite particles.
According to the resin of the embodiment of the present application nucleocapsid/SiO2Aeroge composite particles, by provided by the present application above-mentioned
Resin nucleocapsid/SiO2The preparation method of aeroge composite particles is made.
To achieve the goals above, in terms of according to the third of the technical program, the technical program additionally provides a kind of gas
The preparation method of gel wind deflector.
According to the preparation method of the aeroge wind deflector of the embodiment of the present application comprising following steps:
Pass through above-mentioned resin nucleocapsid/SiO provided by the present application2Resin is prepared in the preparation method of aeroge composite particles
Nucleocapsid/SiO2Aeroge composite particles；
By the resin nucleocapsid/SiO2It is punched after aeroge composite particles injection molding, aeroge wind deflector is made.
To achieve the goals above, according to the 4th of the technical program the aspect, the technical program additionally provides a kind of gas
Gel wind deflector.
According to the aeroge wind deflector of the embodiment of the present application, pass through the system of above-mentioned aeroge wind deflector provided by the present application
Preparation Method is made.
Further, the aeroge wind deflector density is 0.2-0.25g/cm3, thermal coefficient 0.01-0.05W
(m·K)-1。
Further, the length of the aeroge wind deflector is 600-800mm.
To achieve the goals above, according to the 5th of the technical program the aspect, the technical program additionally provides a kind of sky
Adjust device.
According to the air conditioner of the embodiment of the present application, wind deflector used in the air conditioner is above-mentioned airsetting provided by the present application
Glue wind deflector.
Resin nucleocapsid/SiO provided herein2The wind deflector of aeroge composite particles preparation, due to due to aeroge
Aperture is small, porosity is high, so that being prepared, aeroge wind deflector heat insulation effect is very good, and thermal coefficient is small, and heat-proof quality is excellent
It is good, wind-guiding plate surface condensation problem can be effectively solved, while because aeroge has three-dimensional netted pore structure abundant, when sound wave passes through
It can rub with hole wall, sound can be weakened severely, lower noise.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is according to resin nucleocapsid/SiO provided by the invention2The preparation method flow chart of aeroge composite particles；
Fig. 2 is according to PS nucleocapsid/SiO provided by the invention2The preparation method flow chart of aeroge composite particles；
Fig. 3 is the preparation method flow chart according to aeroge wind deflector provided by the invention；
Fig. 4 is the macrostructure schematic diagram according to aeroge wind deflector provided by the invention；
Fig. 5 is the microstructure schematic diagram according to aeroge wind deflector provided by the invention；And Fig. 6 is according to the present invention
Resin nucleocapsid/SiO of offer2The structural schematic diagram of aeroge composite particles.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "inner", " in ", "outside", the orientation of the instructions such as "front", "rear" or position close
System is to be based on the orientation or positional relationship shown in the drawings.These terms are primarily to better describe the application and its implementation
Example, is not intended to limit indicated device, element or component must have particular orientation, or carries out structure with particular orientation
It makes and operates.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " setting ", " connection ", " fixation " shall be understood in a broad sense.For example, " connection " may be a fixed connection,
It is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or pass through centre
Medium is indirectly connected, or is two connections internal between device, element or component.For ordinary skill
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Hereinafter, the embodiment suitable to the present invention is described in detail.
1st embodiment: resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof
As shown in fig. 6, resin nucleocapsid/SiO of the 1st embodiment of the invention2Aeroge composite particles include resinous wood
The nucleocapsid 1 of matter and the SiO being wrapped in nucleocapsid 12Aeroge 2, wherein the resin material of nucleocapsid 1 is preferably thermoplastic material, can
With the shape or structure being processed as by injection molding needed for other.
As shown in Figure 1, above-mentioned resin nucleocapsid/SiO2The preparation methods of aeroge composite particles the following steps are included:
(1) by dispersing agent, be used for the monomer of synthetic resin and initiator is added in organic solution and is sufficiently mixed, dispersion is equal
It is even, obtain the first solution system.
(2) by SiO2Aeroge is added in organic solvent and is sufficiently mixed, uniform by ultrasonic disperse after addition dispersing agent, obtains
To the second solution system；
(3) first solution system and the second solution system are uniformly mixed, while stirring by microwave heating, are caused
Polymerization reaction between monomer；
(4) to be washed, dried to reaction product after reaction, resin nucleocapsid/SiO is made2Aeroge compound
Grain.
Wherein, the material of resin nucleocapsid includes but is not limited to PS, PP, ABS and PVC, and the monomer for synthetic resin can be with
Just for styrene, propylene, acrylonitrile, butadiene, vinyl chloride, methyl methacrylate, ethyl methacrylate, methacrylic acid
One of butyl ester, Isobutyl methacrylate, methyl acrylate, acrylic acid or more than one mixture, with specific reference to need
Obtained nucleocapsid material is selected, such as when the material of resin nucleocapsid is selected as PS, then corresponding monomer just selects
For styrene；When the material of resin nucleocapsid is selected as ABS, then corresponding monomer is just selected as styrene, butadiene and third
The mixture of alkene nitrile；When the material of resin nucleocapsid is selected as PP, corresponding monomer is just selected as propylene；When the material of resin nucleocapsid
When matter is selected as PVC, corresponding monomer is just selected as vinyl chloride.
Wherein, initiator is also selected with specific reference to needing obtained nucleocapsid material and reaction monomers, this field skill
Art personnel can need to carry out appropriate adjustment according to the prior art and the application.
Wherein dispersing agent is used to prevent the particle in system from settling and agglomerating, and forms stable suspension.
2nd embodiment: aeroge wind deflector and preparation method thereof
As shown in figure 4, the aeroge wind deflector of the 2nd embodiment of the invention includes plate body 3 and is provided on plate body 3
Several ventilation openings 4.Microstructure inside plate body 3 is as shown in figure 5, it contains the resin that several 1st embodiments provide
Nucleocapsid/SiO2Aeroge composite particles.
As shown in figure 3, the preparation method of above-mentioned aeroge wind deflector the following steps are included:
(1) resin nucleocapsid/SiO is prepared2Aeroge composite particles；
(2) by resin nucleocapsid/SiO2It is punched after aeroge composite particles injection molding, aeroge wind deflector is made.It is compound
It is SiO in core-shell structure after core-shell structure melting during particle injection molding2Aeroge, fail temperature are much high
In injection temperature, the SiO wrapped up inside core-shell structure will not be destroyed in injection molding2Aeroge after injection molding, can still be protected
Hold the good characteristic of itself.
Wherein, resin nucleocapsid/SiO2Aeroge composite particles pass through resin nucleocapsid/SiO that the 1st embodiment provides2Airsetting
The preparation method of glue composite particles is prepared.
The application is described in detail below in conjunction with preferably embodiment.
Embodiment 1
As shown in Fig. 2, giving a kind of resin PS nucleocapsid/SiO2The preparation method of aeroge composite particles.
Certain weight phenylethylene is weighed, is washed with mass fraction 5%NaOH, a period of time is stood, the liquid of falling sub-cloud, repeatedly 3
It is secondary, then be washed with deionized 2 times, dispersing agent PVP-K30 is then added, it is 9:1's that alcohol water ratio, which is added, in above-mentioned each ingredient
In ethanol water, it is eventually adding initiator A IBN, is uniformly mixed and obtains the first solution system, AIBN is in the first solution system
Concentration be 0.006g/mL；
Dispersing agent PVP-K30 is dissolved in into alcohol water than being formulated in the ethanol water for 9:1, a certain amount of SiO is added2Airsetting
Glue, wherein SiO2Aeroge and styrene monomer mass ratio are 1:20, the total dosage of dispersing agent and SiO2Aeroge mass ratio is 1:
1, it is ultrasonically treated 15min at ultrasonic power 500W, is uniformly mixed, obtains the second solution system；
First solution system and the second solution system are uniformly mixed, are added in 500mL container, control mixing speed is
450rpm adjusts microwave parameters, under the conditions of microwave heating power 500W, 75 DEG C of microwave heating temperature, microwave heating 100min,
Cause the polymerization reaction between styrene monomer, generates PS nucleocapsid；
To wash, dry after reaction, PS nucleocapsid/SiO is made2Aeroge composite particles.
Embodiment 2
As shown in Fig. 2, giving a kind of resin PS nucleocapsid/SiO2The preparation method of aeroge composite particles.
Certain weight phenylethylene is weighed, is washed with mass fraction 5%NaOH, a period of time is stood, the liquid of falling sub-cloud, repeatedly 4
It is secondary, then be washed with deionized 3 times, dispersing agent PVP-K30 is then added, it is 8:1's that alcohol water ratio, which is added, in above-mentioned each ingredient
In ethanol water, it is eventually adding initiator A IBN, is uniformly mixed and obtains the first solution system, AIBN is in the first solution system
Concentration be 0.005g/mL；
Dispersing agent PVP-K30 is dissolved in into alcohol water than being formulated in the ethanol water for 8:1, a certain amount of SiO is added2Airsetting
Glue, wherein SiO2Aeroge and styrene monomer mass ratio are 1:20, the total dosage of dispersing agent and SiO2Aeroge mass ratio is 1:
1, it is ultrasonically treated 20min at ultrasonic power 450W, is uniformly mixed, obtains the second solution system；
It is uniformly mixed, is added in 500mL container through the first solution system and the second solution system, control mixing speed is
400rpm adjusts microwave parameters, under the conditions of microwave heating power 450W, 75 DEG C of microwave heating temperature, microwave heating 120min,
Cause the polymerization reaction between styrene monomer, generates PS nucleocapsid；
To wash, dry after reaction, PS nucleocapsid/SiO is made2Aeroge composite particles.
Embodiment 3
As shown in Fig. 2, giving a kind of resin PS nucleocapsid/SiO2The preparation method of aeroge composite particles.
Certain weight phenylethylene is weighed, is washed with mass fraction 5%NaOH, a period of time is stood, the liquid of falling sub-cloud, repeatedly 3
It is secondary, then be washed with deionized 3 times, dispersing agent PVP-K30 is then added, it is 10:1's that alcohol water ratio, which is added, in above-mentioned each ingredient
In ethanol water, it is eventually adding initiator A IBN, is uniformly mixed and obtains the first solution system, AIBN is in the first solution system
Concentration be 0.007g/mL；
Dispersing agent PVP-K30 is dissolved in into alcohol water than being formulated in the ethanol water for 9:1, a certain amount of SiO is added2Airsetting
Glue, wherein SiO2Aeroge and styrene monomer mass ratio are 1:20, the total dosage of dispersing agent and SiO2Aeroge mass ratio is 1:
1, it is ultrasonically treated 18min at ultrasonic power 550W, is uniformly mixed, obtains the second solution system；
It is uniformly mixed, is added in 500mL container through the first solution system and the second solution system, control mixing speed is
500rpm adjusts microwave parameters, under the conditions of microwave heating power 600W, 75 DEG C of microwave heating temperature, microwave heating 110min,
Cause the polymerization reaction between styrene monomer, generates PS nucleocapsid；
To wash, dry after reaction, PS nucleocapsid/SiO is made2Aeroge composite particles.
Embodiment 4
The present embodiment provides a kind of aeroge wind deflectors, including plate body and several ventilation openings being provided on plate body.Plate body
It inside include PS nucleocapsid/SiO that several embodiment 1-3 are prepared2Aeroge composite particles.
The preparation method of the aeroge wind deflector is the following steps are included: PS nucleocapsid/SiO is prepared in the method for embodiment 12
Aeroge composite particles；Then by PS nucleocapsid/SiO2It is punched after aeroge composite particles injection molding, aeroge wind-guiding is made
The length of plate, the aeroge wind deflector of injection molding can be processed as 600-800mm.
The multiple aeroge wind deflectors being prepared by using above-mentioned method are tested, aeroge wind deflector
Density Distribution is in 0.2-0.25g/cm3Between, the thermal coefficient of aeroge wind deflector is distributed in 0.01-0.05W (mK)-1It
Between.
Embodiment 5
A kind of air conditioner is equipped with the aeroge wind deflector of the offer of the embodiment of the present application 3 on the indoor unit of the air conditioner, i.e.,
PS nucleocapsid/SiO that the aeroge wind deflector is prepared by the method that embodiment provides2After aeroge composite particles injection molding
Punching is made.The single plastic material of tradition is replaced using aeroge/PS composite material, passes through dispersion copolymerization method and microwave heating skill
Art production perforation wind deflector, the aeroge wind deflector thermal coefficient of the air conditioner is low, and good heat-insulation effect, porosity is big, sound absorption effect
Fruit is obvious, can effectively solve wind deflector condensation problem, while substantially reducing noise at air outlet.
According to the air conditioner of above-described embodiment can also include housing unit, electric machine assembly, evaporator, condenser etc. other
Necessary component or structure, and corresponding position and connection relationship can refer to air conditioner in the prior art, it is each not described
And connection relationship, operation and the working principle of structure be for those of ordinary skill in the art it is known, herein no longer
Detailed description.
Section Example is described in a progressive manner in this specification, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above is only a specific embodiment of the invention, is made skilled artisans appreciate that or realizing this hair
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and applied principle and features of novelty phase one herein
The widest scope of cause.
Claims (14)
1. a kind of resin nucleocapsid/SiO2The preparation method of aeroge composite particles, which comprises the following steps:
It by dispersing agent, is used in the monomer and initiator addition organic solution of synthetic resin mix, is uniformly dispersed, it is molten to obtain first
Liquid system；
By SiO2Aeroge is added in organic solvent and is sufficiently mixed, uniform by ultrasonic disperse after addition dispersing agent, and it is molten to obtain second
Liquid system；
First solution system and the second solution system are uniformly mixed, heated while stirring, the polymerization between monomer is caused
Reaction；
To be washed, dried to reaction product after reaction, resin nucleocapsid/SiO is made2Aeroge composite particles.
2. resin nucleocapsid/SiO according to claim 12The preparation method of aeroge composite particles, which is characterized in that preparation
During obtaining the second solution system, dispersed by ultrasound, the first solution system and the second solution system are uniformly mixed
Afterwards, it is heated by microwave.
3. resin nucleocapsid/SiO according to claim 12The preparation method of aeroge composite particles, which is characterized in that described
Resin nucleocapsid is PS, PP, ABS or PVC.
4. resin nucleocapsid/SiO according to claim 12The preparation method of aeroge composite particles, which is characterized in that described
Monomer is styrene, propylene, acrylonitrile, butadiene, vinyl chloride, methyl methacrylate, ethyl methacrylate, metering system
One of sour N-butyl, Isobutyl methacrylate, methyl acrylate, acrylic acid or more than one mixture.
5. resin nucleocapsid/SiO according to claim 22The preparation method of aeroge composite particles, which is characterized in that described
Monomer is styrene, and the initiator is AIBN, and dispersing agent PVP-K30, organic solvent is the second that volume ratio of alcohol to water example is 9:1
Alcohol solution.
6. resin nucleocapsid/SiO according to claim 52The preparation method of aeroge composite particles, which is characterized in that described
SiO2The mass ratio of aeroge and the styrene monomer is 1:20, PVP-K30 and SiO2The mass ratio of aeroge is 1:1.
7. resin nucleocapsid/SiO according to claim 62The preparation method of aeroge composite particles, which is characterized in that described
In second solution system preparation process, the power of ultrasonic disperse is 500W, and the ultrasonic disperse time is 15-20min.
8. resin nucleocapsid/SiO according to claim 62The preparation method of aeroge composite particles, which is characterized in that micro-
During Wave heating, mixing speed 450r/min, microwave heating power is 500W, and heating temperature is 75 DEG C, heating time
For 100min.
9. the resin nucleocapsid/SiO being prepared by preparation method according to any one of claims 1 to 82Aeroge composite particles.
10. a kind of preparation method of aeroge wind deflector, which comprises the following steps:
Pass through the described in any item resin nucleocapsid/SiO of claim 1-82Tree is prepared in the preparation method of aeroge composite particles
Rouge nucleocapsid/SiO2Aeroge composite particles；
By the resin nucleocapsid/SiO2It is punched after aeroge composite particles injection molding, aeroge wind deflector is made.
11. the aeroge wind deflector being prepared by preparation method described in any one of claim 10.
12. aeroge wind deflector according to claim 11, which is characterized in that the aeroge wind deflector density is 0.2-
0.25g/cm3, thermal coefficient is 0.01-0.05W (mK)-1。
13. aeroge wind deflector according to claim 11, which is characterized in that the length of aeroge wind deflector is 600-
800mm。
14. a kind of air conditioner, which is characterized in that including the described in any item aeroge wind deflectors of claim 11-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544221.XA CN109810211A (en) | 2018-12-17 | 2018-12-17 | Resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof, aeroge wind deflector and preparation method thereof and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544221.XA CN109810211A (en) | 2018-12-17 | 2018-12-17 | Resin nucleocapsid/SiO2Aeroge composite particles and preparation method thereof, aeroge wind deflector and preparation method thereof and air conditioner |
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| CN109810211A true CN109810211A (en) | 2019-05-28 |
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| CN114890718A (en) * | 2022-04-19 | 2022-08-12 | 北京华阳众信建材有限公司 | Fireproof heat-insulation slurry and preparation method thereof |
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Application publication date: 20190528 |