CN112521852A - Heat insulation coating and preparation method thereof - Google Patents
Heat insulation coating and preparation method thereof Download PDFInfo
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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
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Abstract
The invention discloses a heat insulation coating which is characterized by being prepared from the following raw materials in parts by weight: 8-10 parts of modified hole-sealing hollow nanoparticle-embedded foamy carbon, 3-5 parts of hydrophilic molecular sieve, 30-40 parts of amino-terminated hyperbranched polybenzimidazole, 10-20 parts of sulfonated polybenzimidazole, 30-40 parts of inorganic filler, 2-4 parts of defoaming agent, 1-3 parts of dispersing agent and 10-15 parts of solvent. The invention also provides a preparation method of the heat insulation coating. The heat insulation coating provided by the invention has the advantages of good comprehensive performance, better heat insulation effect, better performance stability and water resistance, stronger adhesion with a base material and longer service life.
Description
Technical Field
The invention relates to the technical field of functional coatings, in particular to a heat insulation coating and a preparation method thereof.
Background
In recent years, with the continuous acceleration of the urbanization construction process of China, various building projects are increased, which promotes the development of heat insulation materials to a certain extent, and various novel heat insulation materials with excellent performance are gradually appeared and are quickly accepted by the industry people. The use of heat-insulating materials is an important measure for keeping the indoor temperature constant, increasing the temperature difference between the indoor and the outdoor, creating a suitable indoor thermal environment and saving energy.
The building heat insulation coating in the building heat insulation material is more and more favored by people due to the advantages of convenient use, good heat insulation effect, economy, feasibility and the like. The material can not only realize the original functions of decoration, protection, mildew prevention and the like of the coating, but also play a role in heat insulation and heat preservation. The heat insulation and preservation coating in the prior art is formed by adopting acrylic resin, polyester resin, fluorosilicone resin, epoxy resin and the like as film forming substances and adding a heat insulation and preservation auxiliary agent, and although the coating has a certain heat insulation effect, the main film forming substance is single, and the comprehensive performance of the coating is not excellent enough; poor heat insulation performance and storage stability, inconvenient construction and single heat insulation mode, and is not suitable for the development of the building industry. In addition, the heat insulation coatings on the market also have the defects of poor waterproof performance and adhesion, easiness in cracking and dropping, poor storage stability, high price, inconvenience in construction and further improvement of weather resistance and heat insulation performance.
The Chinese invention patent with the application number of 201010230484.0 discloses a heat insulation coating, which belongs to the technical field of exterior wall coatings of buildings and is mainly technically characterized by being prepared from the following raw materials in parts by weight: 20 to 25 portions of emulsion, 10 to 15 portions of titanium dioxide, 10 to 15 portions of heavy calcium carbonate, 10 to 15 portions of wollastonite, 10 to 15 portions of kaolin, 0.6 to 0.8 portion of dispersant, 0.1 to 0.3 portion of wetting agent, 0.1 to 0.3 portion of cellulose, 0.2 to 0.3 portion of flatting agent, 0.6 to 0.8 portion of thickener, 0.1 to 0.2 portion of PH value regulator, 18 to 22 portions of filling particles and 10 to 20 portions of water. The thermal insulation coating has the function of reflection and heat insulation due to the adoption of the outer protective layer filled with the particles. The invention has the advantages of good heat insulation performance, convenient construction, short construction period, beautiful appearance, firmness and the like. However, the coating is to be further improved in weatherability, chemical resistance, durability and adhesion properties.
The field still needs a heat insulation coating with good comprehensive performance, better heat insulation effect, better performance stability and water resistance, stronger adhesion with a base material and longer service life.
Disclosure of Invention
The invention aims to provide a heat insulation coating which has the advantages of good comprehensive performance, better heat insulation effect, better performance stability and water resistance, stronger adhesive force with a base material and longer service life; meanwhile, the invention also provides a preparation method of the heat insulation coating, and the preparation method is simple, convenient to construct, low in labor intensity, good in labor environment, low in equipment investment, high in production efficiency and suitable for continuous industrial production.
In order to achieve the purpose, the invention adopts the technical scheme that the heat insulation coating is characterized by being prepared from the following raw materials in parts by weight: 8-10 parts of modified hole-sealing hollow nanoparticle-embedded foamy carbon, 3-5 parts of hydrophilic molecular sieve, 30-40 parts of amino-terminated hyperbranched polybenzimidazole, 10-20 parts of sulfonated polybenzimidazole, 30-40 parts of inorganic filler, 2-4 parts of defoaming agent, 1-3 parts of dispersing agent and 10-15 parts of solvent.
Preferably, the solvent is one or more of cyclohexanone, methyl isobutyl ketone, N-methyl pyrrolidone and propylene glycol methyl ether.
Preferably, the dispersant is sodium hexametaphosphate and/or sodium polycarboxylate; the antifoaming agent is one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088.
Preferably, the inorganic filler is at least one of double-flying powder, talcum powder, illite powder and diatomite.
Preferably, the particle size of the inorganic filler is 1000-1200 meshes.
Preferably, the sulfonated polybenzimidazole is sulfonated polybenzimidazole prepared according to the method of chinese patent application No. 201410015982.8, example 4.
Preferably, the amino-terminated hyperbranched polybenzimidazole is prepared by the method of the embodiment of the Chinese invention patent with the application number of 201010210204. X. In one embodiment of the present invention, the amino-terminated hyperbranched polybenzimidazole is a third generation product.
Preferably, the hydrophilic molecular sieve is prepared according to the method of chinese patent application No. 201410038851.5, example 1.
Preferably, the preparation method of the modified hole sealing hollow nanoparticle-embedded carbon foam comprises the following steps: dispersing the foamy carbon embedded with the hollow nano particles in an organic solvent, then adding vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trimethylol methacrylamide, glycidyl methacrylate, 1-allyl-3-vinyl imidazole chloride salt and an initiator into the organic solvent, stirring and reacting for 4-6 hours at 70-80 ℃ in an inert gas atmosphere, then sequentially centrifuging, washing with ethanol, drying, grinding and sieving with a sieve of 1200 meshes and 1500 meshes to obtain the foamy carbon embedded with the hollow nano particles in the modified hole sealing.
Preferably, the foam carbon with the embedded hollow nano particles, the organic solvent, the vinyltriethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate and the 1-allyl-3-vinyl imidazole chloride salt are mixed in a mass ratio of (3-5): 20-30): 0.2-0.3):0.3:0.3:0.2 (0.1-0.3): 0.01-0.02).
Preferably, the organic solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile; the inert gas is any one of nitrogen, helium, neon and argon.
Preferably, the carbon foam embedded with hollow nano-particles is carbon foam embedded with hollow nano-particles of ferric oxide, and the preparation method is described in example 1 of the chinese patent application No. 201510448651.1.
The invention also aims to provide a preparation method of the heat insulation coating, which is characterized by comprising the following steps: mixing the raw materials according to the parts by weight, dispersing for 25-35 minutes at the rotating speed of 1200-1500 rpm, grinding by a grinder until the fineness is below 30 mu m, post-curing for 2-4 days, sampling, inspecting, sieving and packaging after passing, thus obtaining the finished product.
The preparation method of the heat insulation coating provided by the invention is simple, convenient to construct, low in labor intensity, good in labor environment, low in equipment investment and high in production efficiency, and is suitable for continuous industrial production.
The heat insulation coating provided by the invention overcomes the defects that the heat insulation coating in the prior art is mainly formed by adopting acrylic resin, polyester resin, fluorosilicone resin, epoxy resin and the like as film-forming substances and adding a heat insulation auxiliary agent, and although the coating has a certain heat insulation effect, the main film-forming substance is single, and the comprehensive performance of the coating is not excellent enough; poor heat insulation performance and storage stability, inconvenient construction and single heat insulation mode, and is not suitable for the development of the building industry; in addition, the heat insulation coating on the market also has the defects of poor waterproof performance and adhesion, easy cracking and falling, poor storage stability, high price, inconvenient construction and further improved weather resistance and heat insulation performance; through the synergistic effect of the components, the prepared coating has the advantages of good comprehensive performance, better heat insulation and preservation effects, better performance stability and water resistance, stronger adhesive force with a base material and longer service life.
According to the thermal insulation coating provided by the invention, the added modified hole sealing foam carbon with embedded hollow nano particles combines the radiation thermal insulation of metal oxide and the barrier thermal insulation of a hollow structure and a foam structure, and the synergistic effect of various thermal insulation modes enables the thermal insulation effect to be obviously improved. Through surface modification, hole sealing is realized, convection is not formed, air with low heat conductivity is effectively sealed, and the heat insulation performance is further improved; and the coating and the hydrophilic molecular sieve have synergistic effect, so that the mechanical strength of the coating is improved, and the heat insulation effect is better.
According to the heat insulation coating provided by the invention, the surface of the foam carbon with the hollow nano particles embedded in the added modified hole sealing is modified with a polymer formed by copolymerization of vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trihydroxymethyl acrylamide, glycidyl methacrylate and 1-allyl-3-vinyl imidazole chloride, and the molecular chain of the polymer contains more active hydroxyl groups and ionic salt groups, so that the film forming performance and the adhesion performance with a base material can be effectively improved; the epoxy group on the epoxy resin can generate ring-opening reaction with the amino group on the amino-terminated hyperbranched polybenzimidazole in the curing stage; the imidazolium salt group is easily connected with the sulfonic group on the sulfonated polybenzimidazole through ion exchange, so that each component forms a three-dimensional network structure, the comprehensive performance of the coating is effectively improved, the water resistance of the coating is better, and the heat insulation effect is better. The introduced imidazole salt structure can improve the antistatic and antibacterial properties.
The heat-insulating and heat-preserving coating provided by the invention takes amino-terminated hyperbranched polybenzimidazole and sulfonated polybenzimidazole as film forming substances, has good weather resistance and good flame-retardant and fireproof performances, and improves the adhesion performance and the compatibility with other components due to the introduction of a hyperbranched structure and a sulfonated structure; in addition, the toughness of the coating can be enhanced, so that the comprehensive performance of the coating is better. The amino-terminated hyperbranched polybenzimidazole and the sulfonated polybenzimidazole both contain polybenzimidazole structures, have good compatibility and are not easy to crack or fall off.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The heat insulation coating is characterized by being prepared from the following raw materials in parts by weight: 8-10 parts of modified hole-sealing hollow nanoparticle-embedded foamy carbon, 3-5 parts of hydrophilic molecular sieve, 30-40 parts of amino-terminated hyperbranched polybenzimidazole, 10-20 parts of sulfonated polybenzimidazole, 30-40 parts of inorganic filler, 2-4 parts of defoaming agent, 1-3 parts of dispersing agent and 10-15 parts of solvent.
The solvent is one or more of cyclohexanone, methyl isobutyl ketone, N-methyl pyrrolidone and propylene glycol methyl ether.
The dispersing agent is sodium hexametaphosphate and/or sodium polycarboxylate; the antifoaming agent is one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088.
The inorganic filler is at least one of double-flying powder, talcum powder, illite powder and diatomite.
The particle size of the inorganic filler is 1000-1200 meshes.
The sulfonated polybenzimidazole is sulfonated polybenzimidazole prepared according to the method of the chinese invention patent example 4 with the application number of 201410015982.8.
The amino-terminated hyperbranched polybenzimidazole is prepared by the method of the embodiment of the Chinese invention patent with the application number of 201010210204. X. In one embodiment of the present invention, the amino-terminated hyperbranched polybenzimidazole is a third generation product.
The hydrophilic molecular sieve is prepared according to the method of Chinese patent application No. 201410038851.5, patent example 1.
The preparation method of the modified hole sealing foam carbon with the embedded hollow nano particles comprises the following steps: dispersing the foamy carbon embedded with the hollow nano particles in an organic solvent, then adding vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trimethylol methacrylamide, glycidyl methacrylate, 1-allyl-3-vinyl imidazole chloride salt and an initiator into the organic solvent, stirring and reacting for 4-6 hours at 70-80 ℃ in an inert gas atmosphere, then sequentially centrifuging, washing with ethanol, drying, grinding and sieving with a sieve of 1200 meshes and 1500 meshes to obtain the foamy carbon embedded with the hollow nano particles in the modified hole sealing.
The foam carbon with embedded hollow nano-particles, an organic solvent, vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trimethylol methacrylamide, glycidyl methacrylate, 1-allyl-3-vinyl imidazole chloride salt and an initiator are mixed according to the mass ratio of (3-5): 20-30): 0.2-0.3):0.3:0.3:0.2: (0.1-0.3): 0.01-0.02.
The organic solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile; the inert gas is any one of nitrogen, helium, neon and argon.
The foam carbon embedded with the hollow nano-particles is the foam carbon embedded with the hollow nano-particles of ferric oxide, and the preparation method is shown in the patent example 1 of Chinese invention with the application number of 201510448651.1.
The invention also aims to provide a preparation method of the heat insulation coating, which is characterized by comprising the following steps: mixing the raw materials according to the parts by weight, dispersing for 25-35 minutes at the rotating speed of 1200-1500 rpm, grinding by a grinder until the fineness is below 30 mu m, post-curing for 2-4 days, sampling, inspecting, sieving and packaging after passing, thus obtaining the finished product.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the preparation method of the heat insulation coating provided by the invention is simple, convenient to construct, low in labor intensity, good in labor environment, low in equipment investment and high in production efficiency, and is suitable for continuous industrial production.
(2) The heat insulation coating provided by the invention overcomes the defects that the heat insulation coating in the prior art is mainly formed by adopting acrylic resin, polyester resin, fluorosilicone resin, epoxy resin and the like as film-forming substances and adding a heat insulation auxiliary agent, and although the coating has a certain heat insulation effect, the main film-forming substance is single, and the comprehensive performance of the coating is not excellent enough; poor heat insulation performance and storage stability, inconvenient construction and single heat insulation mode, and is not suitable for the development of the building industry; in addition, the heat insulation coating on the market also has the defects of poor waterproof performance and adhesion, easy cracking and falling, poor storage stability, high price, inconvenient construction and further improved weather resistance and heat insulation performance; through the synergistic effect of the components, the prepared coating has the advantages of good comprehensive performance, better heat insulation and preservation effects, better performance stability and water resistance, stronger adhesive force with a base material and longer service life.
(3) According to the thermal insulation coating provided by the invention, the added modified hole sealing foam carbon with embedded hollow nano particles combines the radiation thermal insulation of metal oxide and the barrier thermal insulation of a hollow structure and a foam structure, and the synergistic effect of various thermal insulation modes enables the thermal insulation effect to be obviously improved. Through surface modification, hole sealing is realized, convection is not formed, air with low heat conductivity is effectively sealed, and the heat insulation performance is further improved; and the coating and the hydrophilic molecular sieve have synergistic effect, so that the mechanical strength of the coating is improved, and the heat insulation effect is better.
(4) According to the heat insulation coating provided by the invention, the surface of the foam carbon with the hollow nano particles embedded in the added modified hole sealing is modified with a polymer formed by copolymerization of vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trihydroxymethyl acrylamide, glycidyl methacrylate and 1-allyl-3-vinyl imidazole chloride, and the molecular chain of the polymer contains more active hydroxyl groups and ionic salt groups, so that the film forming performance and the adhesion performance with a base material can be effectively improved; the epoxy group on the epoxy resin can generate ring-opening reaction with the amino group on the amino-terminated hyperbranched polybenzimidazole in the curing stage; the imidazolium salt group is easily connected with the sulfonic group on the sulfonated polybenzimidazole through ion exchange, so that each component forms a three-dimensional network structure, the comprehensive performance of the coating is effectively improved, the water resistance of the coating is better, and the heat insulation effect is better. The introduced imidazole salt structure can improve the antistatic and antibacterial properties.
(5) The heat-insulating and heat-preserving coating provided by the invention takes amino-terminated hyperbranched polybenzimidazole and sulfonated polybenzimidazole as film forming substances, has good weather resistance and good flame-retardant and fireproof performances, and improves the adhesion performance and the compatibility with other components due to the introduction of a hyperbranched structure and a sulfonated structure; in addition, the toughness of the coating can be enhanced, so that the comprehensive performance of the coating is better. The amino-terminated hyperbranched polybenzimidazole and the sulfonated polybenzimidazole both contain polybenzimidazole structures, have good compatibility and are not easy to crack or fall off.
Example 1
Embodiment 1 provides a thermal insulation coating, which is characterized by being prepared from the following raw materials in parts by weight: 8 parts of modified hole sealing hollow nanoparticle-embedded foam carbon, 3 parts of hydrophilic molecular sieve, 30 parts of amino-terminated hyperbranched polybenzimidazole, 10 parts of sulfonated polybenzimidazole, 30 parts of inorganic filler, 2 parts of defoaming agent, 1 part of dispersant and 10 parts of solvent.
The solvent is cyclohexanone; the dispersant is sodium hexametaphosphate; the defoaming agent is tributyl phosphate; the inorganic filler is double flying powder; the particle size of the inorganic filler is 1000 meshes; the amino-terminated hyperbranched polybenzimidazole is a third-generation product.
The preparation method of the modified hole sealing foam carbon with the embedded hollow nano particles comprises the following steps: dispersing the foam carbon embedded with the hollow nano-particles in an organic solvent, adding vinyltriethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trimethylolpropane methacrylamide, glycidyl methacrylate, 1-allyl-3-vinyl imidazole chloride salt and an initiator into the organic solvent, stirring and reacting for 4 hours at 70 ℃ in an inert gas atmosphere, then sequentially centrifuging, washing with ethanol, drying, grinding and sieving with a 1200-mesh sieve to obtain the modified hole-sealing foam carbon embedded with the hollow nano-particles.
The mass ratio of the foam carbon embedded with the hollow nano particles, the organic solvent, the vinyl triethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is 3:20:0.2:0.3:0.3:0.2:0.1: 0.01; the organic solvent is dimethyl sulfoxide; the initiator is azobisisobutyronitrile; the inert gas is nitrogen.
The preparation method of the heat insulation coating is characterized by comprising the following steps: mixing the raw materials according to parts by weight, dispersing for 25 minutes at the rotating speed of 1200 r/min, grinding by a grinder until the fineness is below 30 mu m, aging for 2 days, sampling, inspecting, sieving and packaging after being qualified to obtain the finished product.
Example 2
Embodiment 2 provides a heat insulation coating, which has the same formula and preparation method as those of embodiment 1, except that the coating is prepared from the following raw materials in parts by weight: 8.5 parts of modified hole sealing hollow nanoparticle-embedded foamy carbon, 3.5 parts of hydrophilic molecular sieve, 33 parts of amino-terminated hyperbranched polybenzimidazole, 12 parts of sulfonated polybenzimidazole, 33 parts of inorganic filler, 2.5 parts of defoaming agent, 1.5 parts of dispersing agent and 11 parts of solvent; the mass ratio of the foam carbon embedded with the hollow nano particles, the organic solvent, the vinyl triethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is 3.5:23:0.23:0.3:0.3:0.2:0.15: 0.012.
Example 3
Embodiment 3 provides a heat insulation coating, which has the same formula and preparation method as those of embodiment 1, except that the coating is prepared from the following raw materials in parts by weight: 9 parts of modified hole sealing hollow nanoparticle-embedded foamy carbon, 4 parts of hydrophilic molecular sieve, 35 parts of amino-terminated hyperbranched polybenzimidazole, 15 parts of sulfonated polybenzimidazole, 35 parts of inorganic filler, 3 parts of defoaming agent, 2 parts of dispersing agent and 13 parts of solvent; the mass ratio of the foam carbon embedded with the hollow nano particles, the organic solvent, the vinyl triethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is 4:25:0.25:0.3:0.3:0.2:0.2: 0.015.
Example 4
Embodiment 4 provides a heat insulation coating, which has the same formula and preparation method as those of embodiment 1, except that the coating is prepared from the following raw materials in parts by weight: 9.5 parts of modified hole sealing hollow nanoparticle-embedded foamy carbon, 4.5 parts of hydrophilic molecular sieve, 38 parts of amino-terminated hyperbranched polybenzimidazole, 18 parts of sulfonated polybenzimidazole, 38 parts of inorganic filler, 3.5 parts of defoaming agent, 2.5 parts of dispersing agent and 14 parts of solvent; the mass ratio of the foam carbon embedded with the hollow nano particles, the organic solvent, the vinyl triethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is 4.5:28:0.28:0.3:0.3:0.2:0.27: 0.018.
Example 5
Embodiment 5 provides a heat insulation coating, which has the same formula and preparation method as those of embodiment 1, except that the coating is prepared from the following raw materials in parts by weight: 10 parts of modified hole sealing hollow nanoparticle-embedded foam carbon, 5 parts of hydrophilic molecular sieve, 40 parts of amino-terminated hyperbranched polybenzimidazole, 20 parts of sulfonated polybenzimidazole, 40 parts of inorganic filler, 4 parts of defoaming agent, 3 parts of dispersant and 15 parts of solvent; the mass ratio of the foam carbon embedded with the hollow nano particles, the organic solvent, the vinyl triethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is 5:30:0.3:0.3:0.3:0.2:0.3: 0.02.
Comparative example 1
Comparative example 1 provides a thermal insulation coating, the formulation and preparation method of which are substantially the same as those of example 1, except that the modified hole-sealing carbon foam with embedded hollow nano-particles is not added.
Comparative example 2
Comparative example 2 provides a thermal insulating coating, whose formulation and preparation method are substantially the same as those of example 1, except that a hydrophilic molecular sieve is not added.
Comparative example 3
Comparative example 3 provides a thermal insulating coating, the formulation and preparation method of which are substantially the same as those of example 1, except that sulfonated polybenzimidazole is not added.
Comparative example 4
Comparative example 4 provides a thermal insulating coating, the formulation and preparation method of which are substantially the same as those of example 1, except that the modified carbon foam with embedded hollow nanoparticles in the pores is replaced with the carbon foam with embedded hollow nanoparticles in the pores.
The samples of the thermal insulating coating described in examples 1 to 5 and comparative examples 1 to 4 were subjected to performance tests, and the test results and test methods are shown in Table 1.
TABLE 1
As can be seen from Table 1, compared with the comparative example, the heat-insulating coating disclosed by the embodiment of the invention has the advantages of more remarkable heat-insulating effect, larger adhesive force and better water resistance, which is the result of synergistic effect of the components.
The above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (9)
1. The heat insulation coating is characterized by being prepared from the following raw materials in parts by weight: 8-10 parts of modified hole-sealing hollow nanoparticle-embedded foamy carbon, 3-5 parts of hydrophilic molecular sieve, 30-40 parts of amino-terminated hyperbranched polybenzimidazole, 10-20 parts of sulfonated polybenzimidazole, 30-40 parts of inorganic filler, 2-4 parts of defoaming agent, 1-3 parts of dispersing agent and 10-15 parts of solvent.
2. A heat insulation coating according to claim 1, wherein the solvent is one or more of cyclohexanone, methyl isobutyl ketone, N-methyl pyrrolidone and propylene glycol methyl ether.
3. The heat-insulating and heat-preserving coating as claimed in claim 1, wherein the dispersant is sodium hexametaphosphate and/or sodium polycarboxylate; the antifoaming agent is one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088.
4. The heat insulation coating as claimed in claim 1, wherein the inorganic filler is at least one of heavy calcium carbonate, talcum powder, illite powder and diatomite; the particle size of the inorganic filler is 1000-1200 meshes.
5. The thermal insulation coating of claim 1, wherein the amino-terminated hyperbranched polybenzimidazole is a third-generation amino-terminated hyperbranched polybenzimidazole.
6. The thermal insulation coating as claimed in claim 1, wherein the preparation method of the modified hole sealing hollow nanoparticle-embedded carbon foam comprises the following steps: dispersing the foamy carbon embedded with the hollow nano particles in an organic solvent, then adding vinyl triethoxysilane, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, N-trimethylol methacrylamide, glycidyl methacrylate, 1-allyl-3-vinyl imidazole chloride salt and an initiator into the organic solvent, stirring and reacting for 4-6 hours at 70-80 ℃ in an inert gas atmosphere, then sequentially centrifuging, washing with ethanol, drying, grinding and sieving with a sieve of 1200 meshes and 1500 meshes to obtain the foamy carbon embedded with the hollow nano particles in the modified hole sealing.
7. The thermal insulation coating of claim 6, wherein the mass ratio of the carbon foam embedded with the hollow nano-particles, the organic solvent, the vinyltriethoxysilane, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the N-trimethylol methacrylamide, the glycidyl methacrylate, the 1-allyl-3-vinyl imidazole chloride salt and the initiator is (3-5): 20-30): 0.2-0.3):0.3:0.3:0.2 (0.1-0.3): 0.01-0.02).
8. The thermal insulation coating according to claim 6, wherein the organic solvent is at least one of dimethylsulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile; the inert gas is any one of nitrogen, helium, neon and argon.
9. A method for preparing a thermal insulation coating according to any one of claims 1 to 8, characterized by comprising the steps of: mixing the raw materials according to the parts by weight, dispersing for 25-35 minutes at the rotating speed of 1200-1500 rpm, grinding by a grinder until the fineness is below 30 mu m, post-curing for 2-4 days, sampling, inspecting, sieving and packaging after passing, thus obtaining the finished product.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773759A (en) * | 2021-09-08 | 2021-12-10 | 宁波捷傲创益新材料有限公司 | Strong sound absorption fixing adhesive tape for automobile and preparation method thereof |
| CN116005074A (en) * | 2023-01-30 | 2023-04-25 | 宁波市鄞州鑫旺热镀锌有限公司 | Hot dip galvanized steel sheet and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557860A (en) * | 2004-01-19 | 2004-12-29 | 上海交通大学 | Sulphonated polybenzimidazole and process for preparing the same |
| CN101879331A (en) * | 2010-06-26 | 2010-11-10 | 上海交通大学 | Preparation method of amino-terminated hyperbranched polybenzimidazole composite film |
| CN103787351A (en) * | 2014-01-27 | 2014-05-14 | 华东师范大学 | Preparation method of microporous zeolite molecular sieves with different topological structures |
| CN105110314A (en) * | 2015-07-28 | 2015-12-02 | 大连理工大学 | Metal oxide hollow nanometer particle-embedded nitrogen-doped nanometer foamy carbon synthesis method |
-
2020
- 2020-11-04 CN CN202011215075.3A patent/CN112521852A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557860A (en) * | 2004-01-19 | 2004-12-29 | 上海交通大学 | Sulphonated polybenzimidazole and process for preparing the same |
| CN101879331A (en) * | 2010-06-26 | 2010-11-10 | 上海交通大学 | Preparation method of amino-terminated hyperbranched polybenzimidazole composite film |
| CN103787351A (en) * | 2014-01-27 | 2014-05-14 | 华东师范大学 | Preparation method of microporous zeolite molecular sieves with different topological structures |
| CN105110314A (en) * | 2015-07-28 | 2015-12-02 | 大连理工大学 | Metal oxide hollow nanometer particle-embedded nitrogen-doped nanometer foamy carbon synthesis method |
Non-Patent Citations (5)
| Title |
|---|
| （日）大井健太著，刘红铌等译: "《无机离子交换材料 选择性分离性能的解析和应用》", 30 June 2015, 上海科学技术出版社 * |
| 刘尚乐等: "《环氧胶粘剂》", 30 November 1978 * |
| 王英等: "烷基醇酰胺聚甘油醚的合成及性能", 《化学工程》 * |
| 王锡娇: "《涂料与颜料标准应用手册 上》", 30 April 2005, 军事谊文出版社 * |
| 贺曼罗: "《环氧树脂胶粘剂》", 30 April 2004, 中国石化出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773759A (en) * | 2021-09-08 | 2021-12-10 | 宁波捷傲创益新材料有限公司 | Strong sound absorption fixing adhesive tape for automobile and preparation method thereof |
| CN113773759B (en) * | 2021-09-08 | 2022-11-22 | 宁波捷傲创益新材料有限公司 | Strong sound absorption fixing adhesive tape for automobile and preparation method thereof |
| CN116005074A (en) * | 2023-01-30 | 2023-04-25 | 宁波市鄞州鑫旺热镀锌有限公司 | Hot dip galvanized steel sheet and preparation method thereof |
| CN116005074B (en) * | 2023-01-30 | 2023-06-16 | 宁波市鄞州鑫旺热镀锌有限公司 | Hot dip galvanized steel sheet and preparation method thereof |
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