CN109852108A - A kind of silica-gel coating film and preparation method thereof - Google Patents
A kind of silica-gel coating film and preparation method thereof Download PDFInfo
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- CN109852108A CN109852108A CN201811630271.XA CN201811630271A CN109852108A CN 109852108 A CN109852108 A CN 109852108A CN 201811630271 A CN201811630271 A CN 201811630271A CN 109852108 A CN109852108 A CN 109852108A
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Abstract
The invention discloses a kind of silica-gel coating films, including substrate and setting silica-gel coating on base material, the silica-gel coating to be made of silica gel, adhesive and thickener.Correspondingly, the invention also discloses a kind of preparation methods of silica-gel coating film.Silica-gel coating of the invention can be adhered directly on substrate, therefore can form thicker silica-gel coating by silica gel, the mutual cooperation of adhesive and thickener, interaction so that silica-gel coating carries adhesion performance, and then improve the hygroscopicity of film.In addition, preparation method of the invention is simple, it is possible to reduce production technology and time.
Description
Technical field
The present invention relates to coated film technical fields more particularly to a kind of silica-gel coating film and preparation method thereof.
Background technique
With the continuous improvement of China's expanding economy and living standards of the people, the requirement to ambient air quality is also continuous
It improves, a kind of energy-saving air exchange system is developing and using, and by now, runner and adsorbent material have had evolved to the 4th for development
In generation, can be run, especially in low temperature and low humidity using advanced solid absorption technology with the air humidity adjusting of continuous-stable, big load
- 70 DEG C of ultralow air dew point can be achieved under operating condition.Air solid adsorbing separation mainly uses rotating disc type metal adsorption body at present,
In dehumidification process, vacuum chuck turntable slowly rotates under driving device drive, when vacuum chuck turntable adsorbs water in processing air section
After molecule reaches saturation state, desorption and regeneration is carried out by high temperature air into regeneration zone, this in cycles, is dried in the process
Continuous temperature regulated rear be sent into of air formulates space, reaches high-precision Temperature and Humidity Control.Aluminium foil is because it is with excellent
Heat dissipation performance is usually used in temperature transition medium and is widely used in rotary wheel device, and silica gel has good absorption property, and
Molecular sieve usually uses the selective absorption of moisture as desiccant, but aluminium foil and silica gel or molecular sieve how
It has enough been firmly combined together at compeling problem to be solved.
The patent of Publication No. CN102580692A discloses a kind of preparation of silica gel aluminium foil for air treatment system
Method, this method first coat the crosslinked resin of one layer of 0.5-2 μ m-thick in the aluminium foil surface of 0.03-0.25mm thickness, then carry out high
Temperature drying, then coats the silica gel of one layer of 0.02-0.04mm thickness on crosslinked resin, then carries out high temperature drying.This method needs
It carries out coating twice and dries twice, complex steps take time and effort.In addition, the silica gel of 0.02-0.04mm thickness is coated in 0.5-
The crosslinked resin of 2 μ m-thicks, the thickness of silica-gel coating are far longer than the thickness of crosslinked resin coating, and crosslinked resin can only bonding portion
Silica gel.Further, due to the limited adhesion capacity of resin, to limit the thickness of silica-gel coating, and then silicon is affected
The water absorbing properties and heating conduction of glue aluminium foil.
Further, since silica gel aluminium foil is mainly used on air interchanger.Specifically, multilayer silica gel aluminium foil is overlapped,
Silica gel aluminium sheet is formed, then silica gel aluminium sheet is punched out, forms different through-hole, more air is allowed to carry out convection current.
Since existing silica gel aluminium foil stretching resistance is lower, aluminium foil is easy to tear when punching press, reduces the yield of product.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of silica-gel coating film, structure is simple, good water absorption.
Technical problem to be solved by the present invention lies in provide a kind of silica-gel coating film, tensile property is good.
The present invention also technical problems to be solved are that provide a kind of preparation method of silica-gel coating film, method is simple,
High production efficiency.
In order to solve the above-mentioned technical problems, the present invention provides a kind of silica-gel coating films, comprising:
Substrate；
Silica-gel coating on base material is set, and the silica-gel coating is made of silica gel, adhesive and thickener, wherein
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g；
The thickener is polyacrylate, methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl first
One or more of base cellulose, the viscosity of the thickener are 1000-1800mm2/s；
Described adhesive is one or more of crosslinked resin, water-based acrylic resin, modified acrylic ester as binder.
As an improvement of the above scheme, the silica-gel coating is composed of the following raw materials by weight:
80-150 parts of silica gel
1.6-3 parts of adhesive
0.08-0.15 parts of thickener.
As an improvement of the above scheme, the modified acrylic ester as binder is composed of the following raw materials by weight:
As an improvement of the above scheme, the thickener is polyacrylate, and the viscosity of the thickener is 1200-
1500mm2/s。
As an improvement of the above scheme, the thickener is methylcellulose, and the viscosity of the thickener is 1300-
1600mm2/s。
As an improvement of the above scheme, the substrate be aluminium foil or copper foil, the substrate with a thickness of 0.03-0.07mm.
As an improvement of the above scheme, the silica-gel coating with a thickness of 30-40 μm.
As an improvement of the above scheme, the one or both sides of substrate are arranged in the silica-gel coating.
Correspondingly, the present invention also provides a kind of preparation methods of silica-gel coating film, comprising:
Substrate is provided；
80-150 parts of silica gel, 1.6-3 parts of adhesives, 0.08-0.15 parts of thickeners and water are uniformly mixed, silica gel painting is obtained
Layer mixing, the viscosity of the silica-gel coating mixing are 40-60mm2/s；
Silica-gel coating mixing is uniformly coated on substrate；
It will be coated with the substrate part drying of silica-gel coating, temperature is 150-300 DEG C.
As an improvement of the above scheme, the viscosity of the silica-gel coating mixing is 45-55mm2/s。
The invention has the following beneficial effects:
1, silica-gel coating of the invention is by silica gel, the mutual cooperation of adhesive and thickener, interaction, so that silica gel
Coating carries adhesion performance, can be adhered directly on substrate, therefore can form thicker silica-gel coating, and then improves film
Hygroscopicity.In addition, silica-gel coating film of the invention can be adhered directly to substrate compared with existing silica-gel coating film
On, coating twice and solidification are needed not move through, production technology and time are reduced.
2, the present invention is by the mutual cooperation of acrylate, crosslinking agent, function monomer, emulsifier and initiator, interaction,
Partial size small (nanoscale) has been made and has been evenly distributed, film forming is good, the modification acrylate bonding of good mechanical property, not only
It can be improved the adhesive force of silica-gel coating, also will not influence the water absorbing properties of silica gel.In addition, modification acrylate of the invention is viscous
Mixture can also enhance the stretching resistance of silica-gel coating film.
3, the present invention increases the viscosity of silica-gel coating mixing by addition thickener, further increases the attached of silica-gel coating
Put forth effort.Specifically, the viscosity-adjusting agent of silica-gel coating mixing is 40-60mm by the present invention2/ s can not only be such that mixing equably applies
Cloth can also improve the efficiency of coating on substrate.
4, the present invention passes through the type and viscosity for limiting thickener, so that silica-gel coating mixing of the invention reaches preset
Viscosity, and the water absorbing properties of silica gel are not influenced.
Detailed description of the invention
Fig. 1 is the schematic diagram of silica-gel coating film of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
Referring to Fig. 1, a kind of silica-gel coating film provided by the invention, including substrate 1, and the silicon being arranged on substrate 1
Gel coating 2, the silica-gel coating 2 are made of silica gel, adhesive and thickener.
Specifically, the silica-gel coating is composed of the following raw materials by weight:
80-150 parts of silica gel
1.6-3 parts of adhesive
0.08-0.15 parts of thickener.
Silica gel aluminium foil in process of production, in order to which silica gel material to be adhered on aluminium foil, needs first to coat one on aluminium foil
Then silica gel material is coated on resin and solidifies by layer resin.Due to the limited adhesion capacity of resin, to limit silicon
The thickness of gel coating, and then affect the water absorbing properties and heating conduction of silica gel aluminium foil.
Silica-gel coating of the invention carries adhesion performance, can be adhered directly on substrate, therefore can form thicker silicon
Gel coating.Preferably, the silica-gel coating with a thickness of 30-40 μm.If it is thin to influence silica gel less than 30 μm for the thickness of silica-gel coating
The water absorbing properties of film；If the thickness of silica-gel coating is higher than 40 μm, the absorbent properties of silica-gel coating have reached steady state, then increase
Add the thickness of coating, only will cause waste.More preferably, the silica-gel coating with a thickness of 35 μm.
It should be noted that the silica-gel coating can be set in the one or both sides of substrate according to the demand of client.
Since silica gel of the invention needs to be mixed to form silica-gel coating mixing, adhesive and thickening with adhesive and thickener
Agent is easily accessible the micropore of silica gel, and in order to guarantee the water absorbing properties of silica-gel coating, the present invention has done specifically the feature of silica gel
It limits, specifically, the average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g.Preferably, the average pitch-row of the silica gel is 2.50-2.70nm, surface area 690-710m2/ g, Kong Rongwei
0.36-0.38ml/g.If the present invention does not use the silica gel of above-mentioned specification, the hygroscopic capacity of silica-gel coating can decline 20-40%.
Adhesive is blended in silica gel by the present invention, is made the included viscous viscosity energy of silica gel, can be adhered directly on substrate, no
Need in addition to coat one layer of adhesive layer on substrate.Specifically, described adhesive is crosslinked resin, water-based acrylic resin, changes
One or more of property acrylic ester adhesive.
Since adhesive to be blended in silica gel, it will affect the water absorbing properties of silica gel, therefore adhesive of the invention is preferred
For modified acrylic ester as binder.Modified acrylic ester as binder of the invention can not only improve the adhesive force of silica-gel coating,
It also will not influence the water absorbing properties of silica gel.In addition, can also to enhance silica-gel coating thin for modified acrylic ester as binder of the invention
The stretching resistance of film.
Specifically, the modified acrylic ester as binder is composed of the following raw materials by weight:
The preparation method of the modified acrylic ester as binder, comprising:
(1) raw material is provided by formula；
(2) by methylpropionic acid methyl esters, butyl acrylate, acrylic acid, acrylonitrile, phenylacetic acid, N- hydroxyacrylamide, initiation
The emulsifier and water for the 60-70% that agent and metering are calculated are added to the container and are heated, and are warming up to 70-80 DEG C, keep the temperature 2 after reacting 3h
Hour, it is filtered after cooling room temperature, obtains mixed liquor, and the pH value of mixed liquor is adjusted to 7.0；
(3) it is added in a reservoir with remaining emulsifier and water in step (2), warming while stirring is to 70-80 DEG C；
(4) mixed liquor of step (2) is added drop-wise in the emulsifier of step (3), time 3-3.5h is kept the temperature after dripping
2-2.5h is filtered after cooling down room temperature, filtrate pH is adjusted to 7.0, obtains modified acrylic ester as binder.
The present invention makes the mutual cooperation of acrylate, crosslinking agent, function monomer, emulsifier and initiator, interaction
It obtained partial size small (nanoscale) and was evenly distributed, film forming is good, the adhesive of good mechanical property.
It should be noted that initiator of the invention is persulfate, emulsifier includes dodecyl sodium sulfate, allyl oxygen
Base Nonyl pheno (10) ether ammonium sulfate (DNS-86) and nonylphenol polyoxyethylene ether.
Emulsifier is the important factor in order in polymerization reaction, the stability and lotion average grain diameter of it and polymerization system
Size have inseparable relationship.The present invention selects 3 kinds of emulsifiers compound, not only has good stability of emulsion and list
Body conversion ratio, light transmittance are also greatly improved.Specifically, DNS-86 is a kind of reactive emulsifier, this emulsifier
The existing group that can participate in reaction has emulsification group again in molecular structure.In polymerization system, it can form micella or increasing
Colloidal sol beam, stable emulsion, and can directly participate in reacting.It is fixed after film forming between reactive emulsifier and polymer with chemical bond
Together, flowing difficulty is big, so that emulsifier is not easy to move to latex film surface, so obtained microemulsion water-resistance property of coating
It is improved significantly, and then the stability enhancing of microemulsion.
The present invention increases the viscosity of silica-gel coating mixing by addition thickener, further increases the attachment of silica-gel coating
Power.Specifically, the viscosity-adjusting agent of silica-gel coating mixing is 40-60mm by the present invention2/ s can not only be such that mixing is equably coated with
On substrate, the efficiency of coating can also be improved.If the viscosity of silica-gel coating mixing is lower than 40mm2/ s, then silica-gel coating is attached
Put forth effort to reduce, and reduce the thickness of single application silica-gel coating, increases the time of coating, and influence the tension of silica-gel coating film
Power；If the viscosity of silica-gel coating mixing is higher than 60mm2/ s then increases the thickness of single application silica-gel coating, makes silica-gel coating
Thickness exceeds preset range, increases cost.Preferably, the viscosity of the silica-gel coating mixing is 45-55mm2/s。
In order to make silica-gel coating mixing reach preset viscosity, and the water absorbing properties of silica gel are not influenced, the present invention is to silica gel
The thickener that coating is selected has done specific restriction.The thickener be polyacrylate, methylcellulose, carboxymethyl cellulose,
One or more of hydroxyethyl cellulose, hydroxypropyl methyl cellulose, further, the viscosity of the thickener are 1000-
1800mm2/s.The present invention uses viscosity for 1000-1800mm2The above-mentioned thickener of/s, can rapidly and accurately mix silica-gel coating
The viscosity-adjusting agent of material is to preset range.Since above-mentioned thickener is with good stability, do not occur with silica gel and adhesive anti-
It answers, and does not influence the water absorbing properties of silica gel.Specifically, cellulose thickener passes through hydrogen by hydrophobic main chain and surrounding water molecules
Key association, improves the fluid volume of polymer itself, reduces the movable space of Particle free, to improve system viscosity.
Further, the thickening efficiency of cellulose thickener is high, and dosage is few.
Based on existing silica-gel coating film production process and environmental requirement, the thickener is methylcellulose, the increasing
Thick dose of viscosity is 1300-1600mm2/s。
In addition, polyacrylate is by the same sex electrostatic repulsion of hydroxy acid radical ion, strand be stretched to by helical form it is rodlike,
To improve the viscosity of water phase.Further, polyacrylate can also build bridge between silica gel and form reticular structure, increase
The stretching resistance of silica-gel coating.
More preferably, the thickener is polyacrylate, and the viscosity of the thickener is 1200-1500mm2/s。
It should be noted that the substrate 1 be aluminium foil or copper foil, but not limited to this.Preferably, the substrate with a thickness of
0.03-0.07mm.Specifically, the thickness of the substrate can be 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm.If
The thickness of substrate is lower than 0.03mm, then base material thickness is too thin, and substrate is easy to tear when coating silica-gel coating mixing, and is formed
Silica-gel coating film stretching resistance it is low, in subsequent punching course, be also easy to tear.Since silica-gel coating of the present invention is by silicon
Glue, adhesive and thickener composition, by the interaction of these three substances, enhance the stretching resistance of silica-gel coating, therefore can
The thickness control of substrate within the scope of 0.03-0.07mm, is not needed too thick substrate, to reduce cost.
Correspondingly, the present invention also provides a kind of preparation methods of silica-gel coating film, comprising:
Substrate is provided；
80-150 parts of silica gel, 1.6-3 parts of adhesives, 0.08-0.15 parts of thickeners and water are uniformly mixed, silica gel painting is obtained
Layer mixing, the viscosity of the silica-gel coating mixing are 40-60mm2/s；
Silica-gel coating mixing is uniformly coated on substrate；
It will be coated with the substrate part drying of silica-gel coating, temperature is 150-300 DEG C.
The viscosity-adjusting agent of silica-gel coating mixing is 40-60mm by the present invention2/ s can not only be such that mixing is uniformly coated to
On substrate, the efficiency of coating can also be improved.If the viscosity of silica-gel coating mixing is lower than 40mm2/ s, the then attachment of silica-gel coating
Power reduces, and reduces the thickness of single application silica-gel coating, increases the time of coating, and influence the tension of silica-gel coating film
Power；If the viscosity of silica-gel coating mixing is higher than 60mm2/ s then increases the thickness of single application silica-gel coating, makes silica-gel coating
Thickness exceeds preset range, increases cost.Preferably, the viscosity of the silica-gel coating mixing is 45-55mm2/s。
Below the present invention will be illustrated with specific embodiment
Embodiment 1
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
80 parts of silica gel
1.6 parts of adhesive
0.08 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are carboxymethyl cellulose 1000mm2/ s, described adhesive are crosslinked resin.
Embodiment 2
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
90 parts of silica gel
1.8 parts of adhesive
0.09 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are hydroxyethyl cellulose, and the viscosity of the thickener is 1100mm2/ s, described adhesive are water
Property acrylic resin.
Embodiment 3
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
100 parts of silica gel
2 parts of adhesive
0.1 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are hydroxypropyl methyl cellulose, and the viscosity of the thickener is 1200mm2/ s, described adhesive
For crosslinked resin and water-based acrylic resin.
Embodiment 4
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
110 parts of silica gel
2.2 parts of adhesive
0.11 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are polyacrylate, and the viscosity of the thickener is 1400mm2/ s, described adhesive are to be modified
Acrylic ester adhesive.
Embodiment 5
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
120 parts of silica gel
2.4 parts of adhesive
0.12 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are methylcellulose, and the viscosity of the thickener is 1600mm2/ s, described adhesive are to be modified
Acrylic ester adhesive.
Embodiment 6
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
130 parts of silica gel
2.6 parts of adhesive
0.13 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are polyacrylate and methylcellulose, and the viscosity of the thickener is 1500mm2/ s, it is described
Adhesive is modified acrylic ester as binder.
Embodiment 7
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
140 parts of silica gel
2.8 parts of adhesive
0.14 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener are methylcellulose, carboxymethyl cellulose and hydroxyethyl cellulose, and the viscosity of the thickener is
1700mm2/ s, described adhesive are modified acrylic ester as binder.
Embodiment 8
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil；
The silica-gel coating is composed of the following raw materials by weight:
150 parts of silica gel
3 parts of adhesive
0.15 part of thickener；
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-
0.38ml/g, the thickener be methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose,
The viscosity of the thickener is 1800mm2/ s, described adhesive are water-based acrylic resin and modified acrylic ester as binder.
Comparative example 1
A kind of silica-gel coating film including aluminium foil, is arranged in the crosslinked resin of aluminium foil and is arranged on crosslinked resin
Silica gel.
Comparative example 2
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil, the silica-gel coating is by silica gel
It is made with crosslinked resin.
Comparative example 3
A kind of silica-gel coating film, including aluminium foil and the silica-gel coating being arranged on aluminium foil, the silica-gel coating is by silica gel
It is made with water-based acrylic resin.
The silica-gel coating film of embodiment 1-8 and comparative example 1-3 are tested, as a result as follows:
| Project | Hygroscopic capacity (g/m2) | Stretching resistance (Mpa) | Elongation percentage (%) | Adhesive force (grade) |
| Embodiment 1 | 12 | 170 | 5 | ≥3 |
| Embodiment 2 | 12 | 175 | 6 | ≥3 |
| Embodiment 3 | 13 | 170 | 5 | ≥3 |
| Embodiment 4 | 13 | 180 | 6 | ≥3.5 |
| Embodiment 5 | 14 | 180 | 6 | ≥3.5 |
| Embodiment 6 | 15 | 180 | 7 | ≥3.5 |
| Embodiment 7 | 15 | 180 | 7 | ≥3.5 |
| Embodiment 8 | 15 | 180 | 7 | ≥3.5 |
| Comparative example 1 | 6 | 125 | 2 | ≥2.5 |
| Comparative example 2 | 6 | 130 | 2 | ≥2 |
| Comparative example 3 | 6 | 130 | 2 | ≥2.5 |
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (10)
1. a kind of silica-gel coating film characterized by comprising
Substrate；
Silica-gel coating on base material is set, and the silica-gel coating is made of silica gel, adhesive and thickener, wherein
The average pitch-row of the silica gel is 2.45-2.85nm, surface area 680-720m2/ g, Kong Rongwei 0.36-0.38ml/g；
The thickener is polyacrylate, methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl fibre
One or more of element is tieed up, the viscosity of the thickener is 1000-1800mm2/s；
Described adhesive is one or more of crosslinked resin, water-based acrylic resin, modified acrylic ester as binder.
2. silica-gel coating film as described in claim 1, which is characterized in that the silica-gel coating is by following raw material group
At:
80-150 parts of silica gel
1.6-3 parts of adhesive
0.08-0.15 parts of thickener.
3. silica-gel coating film as claimed in claim 2, which is characterized in that the modified acrylic ester as binder is by following heavy
Measure part raw material composition:
4. silica-gel coating film as described in claim 1, which is characterized in that the thickener is polyacrylate, the increasing
Thick dose of viscosity is 1200-1500mm2/s。
5. silica-gel coating film as described in claim 1, which is characterized in that the thickener is methylcellulose, the increasing
Thick dose of viscosity is 1300-1600mm2/s。
6. silica-gel coating film as described in claim 1, which is characterized in that the substrate is aluminium foil or copper foil, the substrate
With a thickness of 0.03-0.07mm.
7. silica-gel coating film as claimed in claim 6, which is characterized in that the silica-gel coating with a thickness of 30-40 μm.
8. silica-gel coating film as claimed in claim 7, which is characterized in that the silica-gel coating be arranged in substrate side or
Two sides.
9. a kind of preparation method of silica-gel coating film characterized by comprising
Substrate is provided；
80-150 parts of silica gel, 1.6-3 parts of adhesives, 0.08-0.15 parts of thickeners and water are uniformly mixed, it is mixed to obtain silica-gel coating
Material, the viscosity of the silica-gel coating mixing are 40-60mm2/s；
Silica-gel coating mixing is uniformly coated on substrate；
It will be coated with the substrate part drying of silica-gel coating, temperature is 150-300 DEG C.
10. the preparation method of silica-gel coating film as claimed in claim 9, which is characterized in that the silica-gel coating mixing
Viscosity is 45-55mm2/s。
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| CN201811630271.XA CN109852108B (en) | 2018-12-29 | 2018-12-29 | Silica gel coating film and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166511A (en) * | 2010-12-31 | 2011-08-31 | 广州慧谷化学有限公司 | Corrosion-resistant hygroscopic coat and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166511A (en) * | 2010-12-31 | 2011-08-31 | 广州慧谷化学有限公司 | Corrosion-resistant hygroscopic coat and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵希鹏: "大孔容高比表面积硅胶的制备", 《中国优秀硕士学位论文全文数据库 工程科技Ι辑》 * |
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