CN113943520B - Carbon nanotube modified polysiloxane coating and preparation method thereof - Google Patents
Carbon nanotube modified polysiloxane coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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Abstract
The invention discloses a carbon nanotube modified polysiloxane coating and a preparation method thereof, wherein the coating comprises a main agent and a curing agent, and the mass ratio of the main agent to the curing agent is (10-15): (3-5); the main agent comprises the following components in parts by weight: 30-45 parts of epoxy resin, 0.2-0.5 part of dispersing agent, 10-20 parts of main agent solvent, 0.3-0.8 part of thixotropic agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of carbon nano tube, 18-35 parts of flaky filler, 10-20 parts of corrosion-resistant filler and 10-15 parts of pigment; the curing agent comprises the following components in parts by weight: 85-95 parts of amino polysiloxane resin and 5-15 parts of curing agent solvent. The polysiloxane can modify the carbon nano tube, effectively improve the dispersion performance of the carbon nano tube, thereby forming an excellent and stable conductive network without blind spots on the surface of the coating, having stable antistatic performance, extremely low addition of the carbon nano tube, lighter color of the coating and convenient inspection and cleaning; the main film forming material is an organic-inorganic hybrid structure of epoxy resin and silicon resin, so that the coating has excellent physical and mechanical properties and medium resistance.
Description
Technical Field
The invention relates to the technical field of coating paint, in particular to a carbon nano tube modified polysiloxane paint and a preparation method thereof.
Background
The existing protective and static conductive coating for oil storage tanks generally adopts a common epoxy system and an inorganic zinc-rich coating system.
Wherein, the common epoxy system has low solid content, the film-forming resin has low functionality, the cross-linking density of the coating is low, and the strong polar micromolecule solvent is easy to permeate into the coating to cause the swelling, softening, bubbling and cracking of the coating, thereby further damaging the storage tank, particularly the glass fiber reinforced plastic lining storage tank, and the storage tank is often swelled and fallen by about 5 a to cause pollution to the storage tank.
The construction of the inorganic zinc-rich primer has strict requirements on humidity and film thickness, and the improper process control is easy to cause the defect of a paint film. Inorganic zinc-rich paint films are less resistant to acidic environments. In the using process, moisture reacts with sulfur-containing compound impurities and is deposited at the bottom of the tank, a corrosion environment with strong acidity is formed after a long time, and the corrosion to the zinc-rich coating is very serious. The acidic environment can cause the accelerated consumption of cathodic protection effect of the zinc-rich coating, and the corrosion speed is greatly accelerated.
In addition, although the conventional static conductive coating uses an antistatic filler such as conductive mica or carbon black to realize the static conductive function of the coating, the antistatic performance of the antistatic filler is deteriorated with the passage of time, and the coating is also easily affected by the weather. In addition, the antistatic filler has dark color, is inconvenient to check and clean, and has high addition amount, thereby affecting the cost.
Therefore, it is necessary to develop a novel protective and electrostatic conductive coating having excellent properties.
Disclosure of Invention
The invention aims to provide a carbon nano tube modified polysiloxane coating and a preparation method thereof, and aims to solve the technical problems that a common epoxy system adopting antistatic fillers such as conductive mica or carbon black and the like and a protective static conductive coating adopting an inorganic zinc-rich coating system in the prior art have poor protective effect, the antistatic performance of the coating is reduced along with the time lapse and the coating is easily influenced by weather.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a carbon nanotube modified polysiloxane coating, which comprises a main agent and a curing agent, wherein the mass ratio of the main agent to the curing agent is (10-15): (3-5); the main agent comprises the following components in parts by weight: 30-45 parts of epoxy resin, 0.2-0.5 part of dispersing agent, 10-20 parts of main agent solvent, 0.3-0.8 part of thixotropic agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of carbon nano tube, 18-35 parts of flaky filler, 10-20 parts of corrosion-resistant filler and 10-15 parts of pigment; the curing agent comprises the following components in parts by weight: 85-95 parts of amino polysiloxane resin and 5-15 parts of curing agent solvent.
On the basis of the technical scheme, the invention can be further improved as follows:
further, the epoxy resin is novolac epoxy resin.
Further, the thixotropic agent is one or a combination of more of polyamide wax powder, bentonite and gas silicon.
Further, the carbon nanotube is a single-walled carbon nanotube.
By adopting the scheme, the single-walled carbon nanotube has more excellent antistatic performance.
Further, the flaky filler comprises the following components in parts by weight: 10-15 parts of mica powder, 5-15 parts of feldspar powder and 3-5 parts of mica iron oxide.
By adopting the scheme, the flaky filler mica powder, the feldspar powder and the mica iron oxide with shielding property are adopted, so that the coating film has excellent corrosion resistance and chemical medium resistance, and the cracking resistance of the coating film under thermal shock can be improved.
Further, the corrosion-resistant filler is glass flakes.
By adopting the scheme, the glass flakes have excellent corrosion resistance, and the corrosion resistance of the coating can be effectively improved.
Further, the main solvent is one or more of ortho-xylene, meta-xylene and para-xylene, and the curing agent solvent is one or more of ortho-xylene, meta-xylene and para-xylene.
Further, the pigment is titanium dioxide.
The second aspect of the present invention provides a method for preparing the carbon nanotube modified polysiloxane coating, which comprises the following steps:
(1) a step of preparing a main agent: adding epoxy resin into a reaction kettle, sequentially adding a main agent solvent, a dispersing agent and a defoaming agent under constant-speed stirring, uniformly dispersing at a high speed, keeping constant-speed stirring, adding the carbon nano tubes, dispersing at a high speed for 20-40min, sequentially adding a flaky filler, an anti-corrosion filler and a pigment, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent;
(2) a step of preparing a curing agent: adding amino polysiloxane resin and a curing agent solvent into a reactor, uniformly mixing the materials, and filtering to obtain a curing agent;
(3) and (3) mixing the main agent prepared in the step (1) and the curing agent prepared in the step (2) to obtain the curing agent.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the carbon nano tube is added into the main agent, and the amino polysiloxane resin is added into the curing agent, so that on one hand, the carbon nano tube has extremely high length-diameter ratio and larger surface energy, and is easy to agglomerate under the action of van der Waals force between the tubes, and uniform dispersion in a solution and a polymer matrix cannot be realized; on the other hand, the surface of the carbon nano tube is very smooth, almost has no any dangling bond and presents surface inertia, so the interface interaction with the matrix is very poor; through the organic combination of the amino polysiloxane resin and the carbon nano tube, the polysiloxane resin can modify the carbon nano tube, and the dispersion performance of the carbon nano tube is effectively improved, so that a good and stable conductive network without blind spots is formed on the surface of the coating, and meanwhile, the addition amount of the carbon nano tube is extremely low. In addition, a main film forming material formed by matching the amino polysiloxane resin and the novolac epoxy resin is an organic-inorganic hybrid structure of the epoxy resin and the silicon resin, so that the coating has excellent physical and mechanical properties and good medium resistance.
Detailed Description
The following describes embodiments of the present invention in detail. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Some of the reagent types in the following examples of the invention are as follows:
phenolic epoxy resin: south asia (Nanya) 638S novolac epoxy resin;
dispersing agent: TEGO 655 with a diheight;
defoaming agent: BYK-052N;
single-walled carbon nanotubes: 10% TUBALL1 single-walled carbon nanotubes (SWCNTs) prepolymer with the designation TUBALL 208;
amino polysiloxane resin: wake chemical HP-2000.
Example 1:
the embodiment provides a carbon nanotube modified polysiloxane coating, which comprises a main agent and a curing agent, wherein the weight ratio of the main agent to the curing agent is 10: 3, the preparation method comprises the following steps:
1. preparing a main agent: adding 30 parts by weight of phenolic epoxy resin into a reaction kettle, sequentially adding 10 parts by weight of o-xylene, 0.2 part by weight of dispersant and 0.2 part by weight of defoaming agent under uniform stirring, uniformly dispersing at a high speed, keeping constant stirring, adding 0.2 part by weight of single-walled carbon nano tube, dispersing at a high speed for 20min, sequentially adding 15 parts by weight of mica powder, 5 parts by weight of feldspar powder, 3 parts by weight of mica iron oxide, 10 parts by weight of glass flakes and 10 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent, wherein the mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black purple flaky crystalline powder mica iron oxide, the glass flakes are 300-mesh glass flakes, and the titanium dioxide is a coloring pigment rutile type titanium dioxide;
2. preparing a curing agent: adding 85 parts by weight of amino polysiloxane resin and 15 parts by weight of m-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the carbon nano tube modified polysiloxane coating.
Example 2:
the embodiment provides a carbon nanotube modified polysiloxane coating, which comprises a main agent and a curing agent, wherein the weight ratio of the main agent to the curing agent is 3: 1, preparing by adopting the following steps:
1. preparing a main agent: adding 45 parts by weight of phenolic epoxy resin into a reaction kettle, sequentially adding 15 parts by weight of m-xylene, 0.3 part by weight of dispersant and 0.4 part by weight of defoamer under uniform stirring, uniformly dispersing at a high speed, keeping stirring at a constant speed, adding 0.3 part by weight of single-walled carbon nanotube, dispersing at a high speed for 30min, then sequentially adding 10 parts by weight of mica powder, 15 parts by weight of feldspar powder, 5 parts by weight of mica iron oxide, 20 parts by weight of glass flakes and 15 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent, wherein the flake mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black flaky purple crystalline powder mica iron oxide, the glass is 300-mesh glass flakes, and the titanium dioxide is coloring pigment rutile titanium dioxide;
2. preparing a curing agent: and adding 95 parts by weight of amino polysiloxane resin and 5 parts by weight of p-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the carbon nano tube modified polysiloxane coating.
Example 3:
the embodiment provides a carbon nanotube modified polysiloxane coating, which comprises a main agent and a curing agent, wherein the weight ratio of the main agent to the curing agent is 2: 1, the preparation method comprises the following steps:
1. preparing a main agent: adding 40 parts by weight of phenolic epoxy resin into a reaction kettle, sequentially adding 15 parts by weight of o-xylene, 0.5 part by weight of dispersant and 0.5 part by weight of defoaming agent under uniform stirring, uniformly dispersing at a high speed, keeping constant stirring, adding 0.4 part by weight of single-walled carbon nano tube, dispersing at a high speed for 40min, sequentially adding 12 parts by weight of mica powder, 10 parts by weight of feldspar powder, 4 parts by weight of mica iron oxide, 15 parts by weight of glass flakes and 12 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent, wherein the mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black flaky purple crystalline mica iron oxide, the glass is 300-mesh glass flakes, and the titanium dioxide is coloring pigment rutile titanium dioxide;
2. preparing a curing agent: and adding 90 parts by weight of amino polysiloxane resin and 10 parts by weight of o-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the carbon nano tube modified polysiloxane coating.
Adding amino polysiloxane resin and a curing agent solvent into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
Comparative example 1:
the comparative example provides a coating comprising a host and a curing agent in a weight ratio of 10: 3, the preparation method comprises the following steps:
1. preparing a main agent: adding 30 parts by weight of phenolic epoxy resin into a reaction kettle, sequentially adding 10 parts by weight of o-xylene, 0.2 part by weight of dispersant and 0.2 part by weight of defoaming agent under uniform stirring, uniformly dispersing at a high speed, keeping constant stirring, adding 0.2 part by weight of single-walled carbon nano tube, dispersing at a high speed for 20min, sequentially adding 15 parts by weight of mica powder, 5 parts by weight of feldspar powder, 3 parts by weight of mica iron oxide, 10 parts by weight of glass flakes and 10 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent, wherein the mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black purple flaky crystalline powder mica iron oxide, the glass flakes are 300-mesh glass flakes, and the titanium dioxide is a coloring pigment rutile type titanium dioxide;
2. preparing a curing agent: adding 85 parts by weight of polyamide and 15 parts by weight of m-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the coating.
Comparative example 2:
the comparative example provides a coating comprising a host and a curing agent in a weight ratio of 10: 3, the preparation method comprises the following steps:
1. preparing a main agent: adding 30 parts by weight of novolac epoxy resin into a reaction kettle, sequentially adding 10 parts by weight of o-xylene, 0.2 part by weight of dispersant and 0.2 part by weight of defoaming agent under uniform stirring, uniformly dispersing at a high speed, keeping constant stirring, adding 0.2 part by weight of conductive mica, dispersing at a high speed for 20min, sequentially adding 15 parts by weight of mica powder, 5 parts by weight of feldspar powder, 3 parts by weight of mica iron oxide, 10 parts by weight of glass flakes and 10 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60 mu m, filtering, packaging and discharging to obtain a main agent, wherein the mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black flaky purple crystalline mica iron oxide, the glass is 300-mesh glass flakes, and the titanium dioxide is coloring pigment rutile titanium dioxide;
2. preparing a curing agent: adding 85 parts by weight of polyamide and 15 parts by weight of m-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the coating.
Comparative example 3:
the comparative example provides a coating comprising a host and a curing agent in a weight ratio of 10: 3, the preparation method comprises the following steps:
1. preparing a main agent: adding 30 parts by weight of novolac epoxy resin into a reaction kettle, sequentially adding 10 parts by weight of o-xylene, 0.2 part by weight of dispersant and 0.2 part by weight of defoaming agent under uniform stirring, uniformly dispersing at a high speed, keeping stirring at a constant speed, adding 5 parts by weight of conductive mica, dispersing at a high speed for 20min, sequentially adding 15 parts by weight of mica powder, 5 parts by weight of feldspar powder, 3 parts by weight of mica iron oxide, 10 parts by weight of glass flakes and 10 parts by weight of titanium dioxide, dispersing at a high speed until the fineness is less than or equal to 60um, filtering, packaging and discharging to obtain a main agent, wherein the mica powder is 600-mesh wet-process mica powder, the feldspar powder is 325-mesh feldspar powder, the mica iron oxide is 325-mesh black purple flaky crystalline powder mica iron oxide, the glass flakes are 300-mesh glass flakes, and the titanium dioxide is a coloring pigment rutile titanium dioxide;
2. preparing a curing agent: adding 85 parts by weight of polyamide and 15 parts by weight of m-xylene into a reactor, uniformly mixing the materials, and filtering to obtain the curing agent.
During construction, the main agent and the curing agent are uniformly stirred to obtain the coating.
Example of effects:
the following test results were obtained by performing experimental tests on the carbon nanotube-modified polysiloxane coatings of examples 1, 2, and 3:
the detection results show that the surface resistance of the coatings of the embodiments 1 to 3 is 107 to 108, the coatings have good antistatic capability, and the coatings have excellent corrosion resistance and mechanical properties.
Antistatic performance analysis was performed on the coatings of example 1 and comparative examples 1 to 3 by first measuring the surface resistance of the coating layer in an initial state, then leaving the coating layer to stand at 0 ℃ and 60% humidity for 24 hours, and then measuring the surface resistance of the coating layer to obtain the following data:
from the data, the coating of the embodiment can still maintain stable antistatic performance under high humidity and low temperature conditions, the coating of the comparative example 1 does not adopt amino polysiloxane resin as a curing agent, and carbon nanotubes cannot be uniformly dispersed in the coating to form a conductive network, so that the surface resistance of the coating is high, and the antistatic effect cannot be formed; comparative example 2 adopts conductive mica as an antistatic agent, the amount of the conductive mica adopts the same standard as that of the carbon nano tube, and the conductive mica with the same amount cannot form a finished conductive network, so that the surface resistance of the coating is higher, and the antistatic effect cannot be formed; comparative example 3 increased the amount of conductive mica, and the coating had better antistatic property in the initial state, but after treatment in low temperature and high humidity environment, the antistatic property was decreased and unstable.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (8)
1. The carbon nanotube modified polysiloxane coating is characterized by comprising a main agent and a curing agent, wherein the mass ratio of the main agent to the curing agent is (10-15): (3-5); the main agent comprises the following components in parts by weight: 30-45 parts of epoxy resin, 0.2-0.5 part of dispersant, 10-20 parts of main solvent, 0.3-0.8 part of thixotropic agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of single-walled carbon nanotube, 18-35 parts of flaky filler, 10-20 parts of corrosion-resistant filler and 10-15 parts of pigment; the curing agent comprises the following components in parts by weight: 85-95 parts of amino polysiloxane resin and 5-15 parts of curing agent solvent.
2. The carbon nanotube-modified polysiloxane coating of claim 1, wherein the epoxy resin is a novolac epoxy resin.
3. The carbon nanotube-modified polysiloxane coating according to claim 1, wherein the thixotropic agent is one or more of polyamide wax powder, bentonite, and fumed silica.
4. The carbon nanotube modified polysiloxane coating of claim 1, wherein the plate-like filler comprises the following components in parts by weight: 10-15 parts of mica powder, 5-15 parts of feldspar powder and 3-5 parts of mica iron oxide.
5. The carbon nanotube-modified polysiloxane coating of claim 1, wherein the corrosion-resistant filler is glass flakes.
6. The carbon nanotube-modified polysiloxane coating of claim 1, wherein the host solvent is one or more of ortho-xylene, meta-xylene, and para-xylene, and the curing agent solvent is one or more of ortho-xylene, meta-xylene, and para-xylene.
7. The carbon nanotube-modified polysiloxane coating of claim 1, wherein the pigment is titanium dioxide.
8. The method for preparing the carbon nanotube-modified polysiloxane coating material according to any one of claims 1 to 7, comprising the steps of:
(1) a step of preparing a main agent: adding epoxy resin into a reaction kettle, sequentially adding a main agent solvent, a dispersing agent and a defoaming agent under constant-speed stirring, uniformly dispersing at a high speed, keeping constant-speed stirring, adding the single-walled carbon nanotube, dispersing at a high speed for 20-40min, sequentially adding a flaky filler, an anti-corrosion filler and a pigment, dispersing at a high speed until the fineness is less than or equal to 60 micrometers, filtering, packaging and discharging to obtain a main agent;
(2) a step of preparing a curing agent: adding amino polysiloxane resin and a curing agent solvent into a reactor, uniformly mixing the materials, and filtering to obtain a curing agent;
(3) and (3) mixing the main agent prepared in the step (1) and the curing agent prepared in the step (2) to obtain the curing agent.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050148752A1 (en) * | 2002-05-03 | 2005-07-07 | Klaassens Lars I. | Amino-functional polysiloxanes and their use in coatings |
| CN102295741A (en) * | 2011-06-29 | 2011-12-28 | 中科院广州化学有限公司 | Polyamine organosilicon curing agent for epoxy floor coating, and preparation method thereof |
| CN103031039A (en) * | 2012-12-26 | 2013-04-10 | 湖南威尔斯化学工业有限公司 | Carbon nanotube epoxy resin static conductive coating material and fabrication method thereof |
| WO2015082409A2 (en) * | 2013-12-03 | 2015-06-11 | Akzo Nobel Coatings International B.V. | Coating method for surfaces in chemical installations |
| CN106750185A (en) * | 2017-03-06 | 2017-05-31 | 山东清硕环境科技有限公司 | A kind of Amino End Group Carbonsilane dendrimer curing agent and the chimney anticorrosion special-purpose nanometer hybridized polymer prepared based on the curing agent |
| CN112094571A (en) * | 2020-09-15 | 2020-12-18 | 湖北吉人水性汽车涂料有限公司 | Wear-resistant static-conducting floor coating added with carbon nanotube material and preparation method thereof |
| CN113088159A (en) * | 2021-03-30 | 2021-07-09 | 湖北铁神新材料有限公司 | Dew point corrosion prevention coating and preparation method thereof |
-
2021
- 2021-11-09 CN CN202111321250.1A patent/CN113943520B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050148752A1 (en) * | 2002-05-03 | 2005-07-07 | Klaassens Lars I. | Amino-functional polysiloxanes and their use in coatings |
| CN102295741A (en) * | 2011-06-29 | 2011-12-28 | 中科院广州化学有限公司 | Polyamine organosilicon curing agent for epoxy floor coating, and preparation method thereof |
| CN103031039A (en) * | 2012-12-26 | 2013-04-10 | 湖南威尔斯化学工业有限公司 | Carbon nanotube epoxy resin static conductive coating material and fabrication method thereof |
| WO2015082409A2 (en) * | 2013-12-03 | 2015-06-11 | Akzo Nobel Coatings International B.V. | Coating method for surfaces in chemical installations |
| CN106750185A (en) * | 2017-03-06 | 2017-05-31 | 山东清硕环境科技有限公司 | A kind of Amino End Group Carbonsilane dendrimer curing agent and the chimney anticorrosion special-purpose nanometer hybridized polymer prepared based on the curing agent |
| CN112094571A (en) * | 2020-09-15 | 2020-12-18 | 湖北吉人水性汽车涂料有限公司 | Wear-resistant static-conducting floor coating added with carbon nanotube material and preparation method thereof |
| CN113088159A (en) * | 2021-03-30 | 2021-07-09 | 湖北铁神新材料有限公司 | Dew point corrosion prevention coating and preparation method thereof |
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