CN114736591A - Solvent-free base coat for assembly type building sealant, preparation method and application - Google Patents
Solvent-free base coat for assembly type building sealant, preparation method and application Download PDFInfo
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- CN114736591A CN114736591A CN202210375725.3A CN202210375725A CN114736591A CN 114736591 A CN114736591 A CN 114736591A CN 202210375725 A CN202210375725 A CN 202210375725A CN 114736591 A CN114736591 A CN 114736591A
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- silane
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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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D5/002—Priming paints
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a solvent-free base coat for an assembly type building sealant, a preparation method and application thereof, wherein the base coat comprises the following components in parts by weight: 70-90 parts of silane end-capped polymer; 3-15 parts of a viscosity promoter; 5-15 parts of a crosslinking agent; and 0.1-5 parts of a catalyst; the silane-terminated polymer is prepared by reacting isocyanate silane and polyether polyol; the adhesion promoter is selected from at least one of epoxy silane and amino silane; the cross-linking agent is selected from at least one of tetramethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, tetraethoxysilane, methyltriethoxysilane and propyltriethoxysilane; the catalyst is selected from at least one of titanate, zirconate and aluminate. The solvent-free base coat for the assembly type building sealant provided by the invention has excellent bonding matching performance on the surface of a cement base material under two tests of normal temperature and water immersion, and is odorless, environment-friendly and convenient for on-line workers to use.
Description
Technical Field
The invention belongs to the technical field of high polymer sealing materials, and particularly relates to a solvent-free base coat for an assembly type building sealant, a preparation method and application.
Background
With the development of the existing building technology, the house industrialization has become a necessary trend of the house technology development because of the advantages of shortening the construction period, improving the safety, saving energy, protecting environment, saving cost, stabilizing the building quality, reducing labor cost and the like. The member used in the house industrialization is a prefabricated concrete member which can be processed in a factory, and the manufacturing process of the member comprises template manufacturing and installation, concrete preparation and transportation, member pouring and vibrating and curing, demoulding and stacking and the like. The surface treating agent and the release agent are often used in the processing process of the component, the release agent is prepared by taking mineral oil as a main raw material and adding wax and the like, the mineral oil can be subjected to saponification reaction with alkali in cement concrete to generate alkaline soap, and the alkaline soap is remained in concrete gaps so as to influence the adhesiveness of the sealant; meanwhile, in the process of manufacturing the prefabricated panels, a surface treatment agent is often coated to protect the surfaces of the prefabricated panels, which may cause difficulty in adhering the prefabricated sealant. In addition, since the cement member is a porous material, after soaking in water, water slowly permeates into the bonding surface of the assembly sealant and damages the surface layer, thereby deteriorating the bonding effect of the assembly sealant after soaking in water.
In order to improve the normal temperature and water immersion bonding result of the assembly type sealant on the surface of a cement substrate, the surface of the substrate is generally required to be treated by using a primer. The Chinese invention patent CN104559758A reports a base coating liquid for an assembly type sealing polyether sealant, and the solvent content of the base coating liquid is more than 50%. Chinese invention patent CN108047923A discloses a primer for a modified silicone sealant for an assembly type building, wherein the solvent content of the primer is 49-68%.
Common solvents in the existing bottom coat are toluene, xylene, acetone, ethyl acetate, butanone, butyl acetate and cyclohexanone; because the cement base material has a porous structure, the permeability of the primer is good, the using amount of the primer is large, and the solvent is seriously volatilized. The volatilization of a large amount of solvents, particularly benzene solvents, has a strong carcinogenic risk and seriously affects the human health, so that the development of the solvent-free base coat has important significance for protecting the health of operators and the environment.
Disclosure of Invention
The first purpose of the invention is to provide a solvent-free base coat for a fabricated building sealant, aiming at the defects in the prior art.
Therefore, the above purpose of the invention is realized by the following technical scheme:
a solvent-free base coat for an assembly type building sealant comprises the following components in parts by weight:
70-90 parts of silane end-capped polymer;
3-15 parts of a viscosity promoter;
5-15 parts of a crosslinking agent; and
0.1-5 parts of a catalyst;
the silane-terminated polymer is prepared by reacting isocyanate silane and polyether polyol;
the adhesion promoter is selected from at least one of epoxy silane and amino silane;
the cross-linking agent is selected from at least one of tetramethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, tetraethoxysilane, methyltriethoxysilane and propyltriethoxysilane;
the catalyst is selected from at least one of titanate, zirconate and aluminate.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention: the mass ratio of the polyol hydroxyl groups in the polyether polyol to the isocyanate groups in the isocyanate silane is 1: 0.5 to 1.
As a preferred technical scheme of the invention: the isocyanate silane is at least one selected from 3-isocyanate propyl triethoxysilane, 3-isocyanate propyl trimethoxysilane and 3-isocyanate propyl methyl dimethoxysilane.
As a preferred technical scheme of the invention: the polyether polyol is at least one selected from polyether polyols with molecular weight of 400-6000 g/mol and functionality of 2-3.
As a preferred technical scheme of the invention: the epoxy silane is selected from at least one of gamma-glycidoxypropyltrimethoxysilane, 3- (2, 3-glycidoxy) propylmethyldiethoxysilane, 3- (2, 3-glycidoxy) propylmethyldimethoxysilane, gamma-glycidoxypropyltriethoxysilane, beta- (3, 4-epoxycyclohexyl) -ethyltriethoxysilane and beta- (3, 4-epoxycyclohexyl) -ethyltrimethoxysilane;
and/or the presence of a gas in the atmosphere,
the aminosilane is selected from gamma-aminopropyltriethoxysilane, gamma-aminopropyltrimethoxysilane, gamma-aminopropylmethyldiethoxysilane, gamma-aminopropylmethyldimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N-diethyl-3-aminopropyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (N-butyl) -gamma-aminopropyltrimethoxysilane, N-cyclohexyl-gamma-aminopropylmethyldimethoxysilane, bis (3-trimethoxysilylpropyl) amine, bis- (gamma-trimethoxysilylpropyl) amine, bis (3-triethoxysilylpropyl) amine, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (N-butyl) -gamma-aminopropyltrimethoxysilane, N-cyclohexyl-gamma-aminopropylmethyldimethoxysilane, bis (3-trimethoxysilylpropyl) amine, bis (gamma-trimethoxysilylpropyl) amine, bis (3-triethoxysilylpropyl) amine, N-beta-aminopropyltriethoxysilane, N-beta-aminopropyl-methyldimethoxysilane, N-beta-aminopropyl-trimethoxysilane, N-methyldimethoxysilane, N-propyltrimethoxysilane, N-aminopropyl) amine, N-bis (3-trimethylsilylpropyl) amine, N-ethoxysilane, N-aminoethoxysilane, N-ethoxysilane, N-aminoethyltrimethoxysilane, N-ethoxysilane, N-amino-N, At least one of N-phenyl-gamma-aminopropyl trimethoxy silane.
As a preferred technical scheme of the invention: the titanate is selected from at least one of isopropyl titanate, n-butyl titanate, polybutyl titanate, tetraisooctyl titanate, tetraethoxy titanium, tetra (2-ethylhexanol) titanium, n-propyl titanate, propyldioleate acyloxy (dioctylphosphate) titanate, isopropyltri (dioctylphosphate) titanate, isopropyltrioleate acyloxy titanate, isopropyltri (dodecylbenzene sulfonic acid) titanate, isopropyltri (dioctylphosphate) ethylene titanate, tetraisopropyldi (dioctylphosphite) titanate;
and/or the presence of a gas in the atmosphere,
the zirconate is selected from at least one of n-butyl zirconate and isobutyl zirconate;
and/or the presence of a gas in the gas,
the aluminate is at least one selected from diisopropyl di (ethyl acetoacetate) aluminate, isopropyl aluminate and diisopropyl di (acetylacetone) aluminate.
As a preferred technical scheme of the invention: the viscosity of the solvent-free base coat for the fabricated building sealant is less than 1000 mPa.s.
The second purpose of the invention is to provide a preparation method of the solvent-free base coat for the assembly type building sealant, aiming at the defects in the prior art.
Therefore, the above purpose of the invention is realized by the following technical scheme:
the preparation method of the solvent-free base coat for the assembly type building sealant comprises the following steps:
1) dehydrating polyether polyol at 90-150 ℃ for 1-3 h, cooling to 20-70 ℃, adding isocyanate silane, mixing, reacting for 1-4 h, and cooling to below 40 ℃ to obtain a silane-terminated polymer;
2) stirring and reacting the silane-terminated polymer, the adhesion promoter, the cross-linking agent and the catalyst for 1-2 hours at the temperature of 20-40 ℃; and obtaining the primer for the assembly type sealant.
It is a further object of the present invention to address the deficiencies in the prior art by providing the use of a solventless primer for a fabricated building sealant as described above.
Therefore, the above purpose of the invention is realized by the following technical scheme:
the use of a solventless primer for a fabricated building sealant as hereinbefore described for bonding a fabricated sealant to a cementitious substrate surface.
The solvent-free base coat for the assembly type building sealant has excellent bonding matching performance on a cement substrate surface under two tests of normal temperature and water immersion, and is odorless, environment-friendly and convenient for on-line workers to use.
Detailed Description
The present invention is described in further detail with reference to specific examples.
Example 1
Preparation of silane-terminated polymers:
850g of polyether polyol (molecular weight 2000) is dehydrated for 2h at 120 ℃, then the temperature is reduced to 40 ℃, 150g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 70 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
stirring 800g of silane terminated polymer, 70g of adhesive promoting agent KH560, 50g of adhesive promoting agent KH550, 60g of tetramethoxy silane crosslinking agent and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at the temperature of 40 ℃; and obtaining the primer for the assembly type sealant.
Comparative example 1
Preparation of silane-terminated polymers:
850g of polyether polyol (molecular weight 2000) is dehydrated for 2h at 120 ℃, then the temperature is reduced to 40 ℃, 150g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 70 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
stirring 800g of silane-terminated polymer, 180g of tetramethoxysilane cross-linking agent and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at 40 ℃; and obtaining the primer for the assembly type sealant.
Comparative example 2
Preparation of silane-terminated polymers:
850g of polyether polyol (molecular weight 2000) is dehydrated for 2h at 120 ℃, then the temperature is reduced to 40 ℃, 150g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 70 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
stirring 800g of silane-terminated polymer, 100g of adhesive promoting agent KH560, 80g of adhesive promoting agent KH550 and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at the temperature of 40 ℃; and obtaining the primer for the assembly type sealant.
Comparative example 3
Preparation of silane-terminated polymers:
920g of polyether polyol (molecular weight 2000) is dehydrated for 2h at 120 ℃, then the temperature is reduced to 40 ℃, 80g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 70 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
stirring 800g of silane terminated polymer, 70g of adhesive promoting agent KH560, 50g of adhesive promoting agent KH550, 60g of tetramethoxy silane crosslinking agent and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at the temperature of 40 ℃; and obtaining the primer for the assembly type sealant.
Comparative example 4
Preparation of silane-terminated polymers:
960g polyether polyol (molecular weight 8000) is dehydrated for 2h at 120 ℃, then the temperature is reduced to 40 ℃, 40g 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 70 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane end-capped polymer.
Preparation of solvent-free base coat:
stirring 800g of silane terminated polymer, 70g of adhesive promoting agent KH560, 50g of adhesive promoting agent KH550, 60g of tetramethoxy silane crosslinking agent and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at the temperature of 40 ℃; and obtaining the primer for the assembly type sealant.
Example 2
Preparation of silane-terminated polymers:
840g polyether polyol (molecular weight 2000) is dehydrated for 2h at 120 ℃, then cooled to 40 ℃, added with 160g 3-isocyanate propyl triethoxy silane, reacted for 2h at 70 ℃, and cooled to below 40 ℃ to obtain the silane end-capped polymer.
Preparation of solvent-free base coat:
stirring 800g of silane terminated polymer, 70g of adhesive promoting agent KH560, 50g of adhesive promoting agent KH550, 60g of tetramethoxy silane crosslinking agent and 20g of tetrabutyl titanate catalyst for reaction for 2 hours at the temperature of 40 ℃; and obtaining the primer for the assembly type sealant.
Example 3
Preparation of silane-terminated polymers:
750g of polyether polyol (molecular weight is 1000) is dehydrated for 2h at 110 ℃, then the temperature is reduced to 30 ℃, 250g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out for 2h at 65 ℃, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
850g of silane-terminated polymer, 100g of adhesive promoting agent KH560, 40g of methyltrimethoxysilane crosslinking agent and 10g of tetrabutyl titanate catalyst are stirred and reacted for 2 hours at the temperature of 30 ℃; and obtaining the primer for the assembly type sealant.
Example 4
Preparation of silane-terminated polymers:
800g of polyether polyol (molecular weight 1000) is dehydrated at 120 ℃ for 2h, then the temperature is reduced to 40 ℃, 200g of 3-isocyanate propyl trimethoxy silane is added, the reaction is carried out at 70 ℃ for 2h, and the temperature is reduced to below 40 ℃, thus obtaining the silane-terminated polymer.
Preparation of solvent-free base coat:
850g of silane-terminated polymer, 100g of adhesive promoting agent KH550, 30g of propyl trimethoxy silane crosslinking agent and 20g of tetraisooctyl titanate catalyst are stirred and reacted for 2 hours at the temperature of 25 ℃; and obtaining the primer for the assembly type sealant.
Investigation of adhesion performance of primer:
according to the detection method of the surface adhesiveness of the cement base material, JOJIANG fabricated modules made of JS-902LM low-modulus MS sealant are adopted to verify the adhesive performance of the base coats of the examples 1-4 and the comparative examples 1-4 in a matched manner. The bonding module is maintained at normal temperature for 28 days, and the bonding property is inspected after the module is maintained in a soaking way at 40 ℃ for 7 days.
The adhesive performance under normal temperature and water immersion conditions is shown in table 1 by performing a normal temperature adhesion test and a water immersion adhesion test on the base coats of examples 1 to 4 and comparative examples 1 to 4 of the present invention used in combination with the assembly type sealant.
TABLE 1
| viscosity/mPa.s | Adhesion at ordinary temperature | Adhesiveness in water | |
| Example 1 | 180 | 100% cohesive failure | 100% cohesive failure |
| Comparative example 1 | 160 | 20% cohesive failure | Peeling off |
| Comparative example 2 | 190 | 90% cohesive failure | 20% cohesive failure |
| Comparative example 3 | 150 | 50% cohesive failure | Peeling off |
| Comparative example 4 | 1460 | 60% cohesive failure | Peeling off |
| Example 2 | 190 | 100% cohesive failure | 90% cohesive failure |
| Example 3 | 230 | 100% cohesive failure | 90% cohesive failure |
| Example 4 | 250 | 90% cohesive failure | 90% cohesive failure |
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (9)
1. The solvent-free base coat for the assembly type building sealant is characterized by comprising the following components in percentage by weight: the solvent-free base coat for the fabricated building sealant comprises the following components in parts by weight:
70-90 parts of a silane end-capped polymer;
3-15 parts of adhesion promoter;
5-15 parts of a crosslinking agent; and
0.1-5 parts of a catalyst;
the silane-terminated polymer is prepared by reacting isocyanate silane and polyether polyol;
the adhesion promoter is selected from at least one of epoxy silane and amino silane;
the cross-linking agent is selected from at least one of tetramethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, tetraethoxysilane, methyltriethoxysilane and propyltriethoxysilane;
the catalyst is selected from at least one of titanate, zirconate and aluminate.
2. The solventless basecoat of an assembly building sealant according to claim 1 wherein: the mass ratio of the polyol hydroxyl groups in the polyether polyol to the isocyanate groups in the isocyanate silane is 1: 0.5 to 1.
3. The solventless primer for an assembly type building sealant according to claim 1 or 2, characterized in that: the isocyanate silane is at least one selected from 3-isocyanate propyl triethoxysilane, 3-isocyanate propyl trimethoxysilane and 3-isocyanate propyl methyl dimethoxysilane.
4. The solventless primer for an assembly type building sealant according to claim 1 or 2, characterized in that: the polyether polyol is at least one selected from polyether polyols with molecular weights of 400-6000 g/mol and functionalities of 2-3.
5. The solventless primer for an assembly type building sealant according to claim 1, wherein: the epoxy silane is selected from at least one of gamma-glycidoxypropyltrimethoxysilane, 3- (2, 3-glycidoxy) propylmethyldiethoxysilane, 3- (2, 3-glycidoxy) propylmethyldimethoxysilane, gamma-glycidoxypropyltriethoxysilane, beta- (3, 4-epoxycyclohexyl) -ethyltriethoxysilane and beta- (3, 4-epoxycyclohexyl) -ethyltrimethoxysilane;
and/or the presence of a gas in the atmosphere,
the aminosilane is selected from gamma-aminopropyltriethoxysilane, gamma-aminopropyltrimethoxysilane, gamma-aminopropylmethyldiethoxysilane, gamma-aminopropylmethyldimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N-diethyl-3-aminopropyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (N-butyl) -gamma-aminopropyltrimethoxysilane, N-cyclohexyl-gamma-aminopropylmethyldimethoxysilane, bis (3-trimethoxysilylpropyl) amine, bis- (gamma-trimethoxysilylpropyl) amine, bis (3-triethoxysilylpropyl) amine, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (N-butyl) -gamma-aminopropyltrimethoxysilane, N-cyclohexyl-gamma-aminopropylmethyldimethoxysilane, bis (3-trimethoxysilylpropyl) amine, bis (gamma-trimethoxysilylpropyl) amine, bis (3-triethoxysilylpropyl) amine, N-beta-aminopropyltriethoxysilane, N-beta-aminopropyl-methyldimethoxysilane, N-beta-aminopropyl-trimethoxysilane, N-methyldimethoxysilane, N-propyltrimethoxysilane, N-aminopropyl) amine, N-bis (3-trimethylsilylpropyl) amine, N-ethoxysilane, N-aminoethoxysilane, N-ethoxysilane, N-aminoethyltrimethoxysilane, N-ethoxysilane, N-amino-N, At least one of N-phenyl-gamma-aminopropyl trimethoxy silane.
6. The solventless primer for an assembly type building sealant according to claim 1, wherein: the titanate is selected from at least one of isopropyl titanate, n-butyl titanate, polybutyl titanate, tetraisooctyl titanate, tetraethoxy titanium, tetra (2-ethylhexanol) titanium, n-propyl titanate, propyldioleate acyloxy (dioctylphosphate) titanate, isopropyltri (dioctylphosphate) titanate, isopropyltrioleate acyloxy titanate, isopropyltri (dodecylbenzene sulfonic acid) titanate, isopropyltri (dioctylphosphate) ethylene titanate, tetraisopropyldi (dioctylphosphite) titanate;
and/or the presence of a gas in the atmosphere,
the zirconate is selected from at least one of n-butyl zirconate and isobutyl zirconate;
and/or the presence of a gas in the atmosphere,
the aluminate is at least one selected from diisopropyl di (ethyl acetoacetate) aluminate, isopropyl aluminate and diisopropyl di (acetylacetone) aluminate.
7. The solventless basecoat of an assembly building sealant according to claim 1 wherein: the viscosity of the solvent-free base coat for the fabricated building sealant is less than 1000 mPa.s.
8. The method of preparing a solventless primer for an assembly type building sealant according to claim 1, wherein the method comprises the following steps: the preparation method of the solvent-free base coat for the fabricated building sealant comprises the following steps:
1) dehydrating the polyether polyol at the temperature of 90-150 ℃ for 1-3 h, then cooling to 20-70 ℃, adding isocyanate silane, mixing, reacting for 1-4 h, and cooling to below 40 ℃ to obtain a silane-terminated polymer;
2) stirring and reacting the silane-terminated polymer, the adhesion promoter, the cross-linking agent and the catalyst for 1-2 hours at the temperature of 20-40 ℃; and obtaining the primer for the assembly type sealant.
9. The use of a solventless primer for a fabricated building sealant according to claim 1 to bond a fabricated sealant to a cement substrate surface.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014148552A1 (en) * | 2013-03-21 | 2014-09-25 | 横浜ゴム株式会社 | Primer |
| CN104559758A (en) * | 2014-12-26 | 2015-04-29 | 广州市白云化工实业有限公司 | Bottom coating liquid for silane modified polyether sealant and preparation method thereof |
| CN111675961A (en) * | 2020-07-17 | 2020-09-18 | 广东普赛达密封粘胶有限公司 | Photocurable polyurethane primer and preparation method thereof |
| US20200339729A1 (en) * | 2017-12-22 | 2020-10-29 | Covestro Deutschland Ag | Method for preparing mixed silane-terminated polymers |
| CN112341922A (en) * | 2020-11-26 | 2021-02-09 | 四川蜀羊防水材料有限公司 | Zero-solvent high-environmental-protection-performance silane modified polymer waterproof coating and preparation method thereof |
-
2022
- 2022-04-11 CN CN202210375725.3A patent/CN114736591B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014148552A1 (en) * | 2013-03-21 | 2014-09-25 | 横浜ゴム株式会社 | Primer |
| CN104559758A (en) * | 2014-12-26 | 2015-04-29 | 广州市白云化工实业有限公司 | Bottom coating liquid for silane modified polyether sealant and preparation method thereof |
| US20200339729A1 (en) * | 2017-12-22 | 2020-10-29 | Covestro Deutschland Ag | Method for preparing mixed silane-terminated polymers |
| CN111675961A (en) * | 2020-07-17 | 2020-09-18 | 广东普赛达密封粘胶有限公司 | Photocurable polyurethane primer and preparation method thereof |
| CN112341922A (en) * | 2020-11-26 | 2021-02-09 | 四川蜀羊防水材料有限公司 | Zero-solvent high-environmental-protection-performance silane modified polymer waterproof coating and preparation method thereof |
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