CN111393966A - Solvent-free silane-terminated modified polyether three-proofing paint and preparation method thereof - Google Patents
Solvent-free silane-terminated modified polyether three-proofing paint and preparation method thereof Download PDFInfo
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- CN111393966A CN111393966A CN202010347542.1A CN202010347542A CN111393966A CN 111393966 A CN111393966 A CN 111393966A CN 202010347542 A CN202010347542 A CN 202010347542A CN 111393966 A CN111393966 A CN 111393966A
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention provides a solvent-free silyl-terminated modified polyether three-proofing paint which comprises, by mass, 50-65 parts of α -silyl-terminated modified polyether resin, 30-40 parts of gamma-silyl-terminated modified polyether resin, 2-5 parts of a plasticizer, 1-2 parts of a moisture scavenger, 1-5 parts of a cross-linking agent, 0.5-1 part of a heat-resistant stabilizer, 1-3 parts of an adhesion promoter and 0.5-1 part of an ultraviolet absorbent.
Description
Technical Field
The invention relates to the technical field of materials, in particular to a solvent-free silane-terminated modified polyether three-proofing paint and a preparation method thereof.
Background
Along with the development of science and technology, automobile control, 3C products and intelligent household appliances are continuously updated, wherein the safety and stability of electronic and electrical equipment are very important, a layer of material is usually required to be coated on the surface of an electronic circuit board, and a layer of transparent protective film is formed on the surface of the circuit board after the electronic circuit board is used, so that the functions of water resistance, insulation, salt mist resistance, mold resistance, corrosion resistance and the like are achieved. Such coating materials are generally called three-proofing paints, and are generally classified into acrylate type, polyurethane type, silicone type, according to the kind of resin; the solvent can be classified into a non-solvent type, a water-based type and an organic solvent type according to the types of the solvents; the polyurethane type is brittle after being cured, a reaction group is isocyanate (-NCO), the polyurethane type is harmful to human contact, the waterborne polyurethane meets the requirement of environmental protection, the waterborne polyurethane takes effect by drying with water after being coated, and the performance of the electronic equipment can be reduced due to residual trace water; the types of the organic silicon and the acrylic ester are generally solution type, and the proportion of the organic solvent is large, thus causing harm to the health of construction workers.
Currently, the more types of three-proofing paints used mainly comprise organic silicon, polyurethane and acrylate. The organic silicon type three-proofing paint has good flexibility and high temperature resistance, and because the viscosity of matrix resin is high, the surface drying time is slow, a large amount of organic solvent is usually added, and the volatility is strong, discomfort can be caused in the operation process of workers, and the body health of the serious people is influenced; the polyurethane type comprises a water-based type, a solvent type and a solvent-free type, the strength is higher after film forming, but the polyurethane system mainly takes effect after the reaction of isocyanate groups and moisture, the silane modified polyurethane without the isocyanate groups has better effect and has the problem of short storage stability; the acrylate three-proofing paint contains a large amount of solvent or moisture, and the bonding strength to a base material is not high.
The prior art CN201911065005.1 discloses a polyurethane-acrylic acid type three-proofing paint, which does not contain organic solvent, solves the problem of difficult curing in dark places through UV-moisture dual curing, has better hardness, flexibility, water resistance and acid and alkali resistance, and has potential human hazard due to long-term contact because isocyanate groups are reserved at one end of a molecular chain in the moisture curing.
Therefore, it is necessary to provide a three-proofing paint with low viscosity, high strength and good toughness, which is harmless to human body.
Disclosure of Invention
In view of the above, the technical problem to be solved by the invention is to provide a solvent-free silane-terminated modified polyether three-proofing paint, which has the advantages of solvent-free property, high tensile strength, good toughness, and good water resistance and salt spray resistance.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises the following raw materials:
preferably, the α -terminated silane group-modified polyether resin is selected from Wacker resin
XT50、
STP-E10 or
STP-E30；
The gamma-terminated silane modified polyether resin is selected from Wacker resin
STP-E35 or Wake resin
STP-E15。
Preferably, the plasticizer is selected from one or more of polyether polyol PPG2000, o-benzene plasticizer DIDP, DINP and hydrophobic plasticizer Mesamoll;
the moisture scavenger is selected from one or more of vinyl trimethoxy silane and TI;
the cross-linking agent is tetraethyl orthosilicate.
Preferably, the heat stabilizer is a hindered phenol heat stabilizer;
the adhesion promoter is selected from a bisamino silane coupling agent A-1120 or A-1146;
the ultraviolet absorbent is benzotriazole ultraviolet absorbent.
Preferably, comprises
Preferably, comprises
The invention provides a preparation method of the solvent-free silane-terminated modified polyether three-proofing paint, which comprises the following steps:
A) α -silyl-terminated modified polyether resin, gamma-silyl-terminated modified polyether resin, a plasticizer and a moisture scavenger are mixed and dispersed to obtain a dispersed component;
B) and mixing and stirring the dispersed component with a cross-linking agent, a heat-resistant stabilizer, an adhesion promoter and an ultraviolet absorbent, and defoaming in vacuum to obtain the solvent-free silane-terminated modified polyether tri-proof paint.
Preferably, the dispersing time is 10-15 min.
Preferably, the stirring time in the step B) is 20-30 min.
Preferably, the defoaming vacuum degree in the step B) is more than 0.1 Mpa; the defoaming time is 10-15 min.
Compared with the prior art, the invention provides a solvent-free silyl-terminated modified polyether three-proofing paint which comprises, by mass, 50-65 parts of α -silyl-terminated modified polyether resin, 30-40 parts of gamma-silyl-terminated modified polyether resin, 2-5 parts of plasticizer, 1-2 parts of moisture scavenger, 1-5 parts of cross-linking agent, 0.5-1 part of heat-resistant stabilizer, 1-3 parts of adhesion promoter and 0.5-1 part of ultraviolet absorber.
Detailed Description
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint and a preparation method thereof, and a person skilled in the art can use the content of the paint for reference and appropriately improve the process parameters to realize the solvent-free silane-terminated modified polyether three-proofing paint. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises the following raw materials:
the invention provides a solvent-free silyl-terminated modified polyether three-proofing paint which is prepared from α -silyl-terminated modified polyether resin 50-65 parts by mass, preferably 50-63 parts by mass, more preferably 50-60 parts by mass, most preferably 50-58 parts by mass, specifically 50 parts by mass, 51 parts by mass, 52 parts by mass, 53 parts by mass, 54 parts by mass, 55 parts by mass, 56 parts by mass, 57 parts by mass or 58 parts by mass, and the content of any two of the above components can be further calculated.
The α -terminated silane group-modified polyether resin of the present invention is preferably selected from Wacker resins
XT50、
STP-E10 or
STP-E30; the present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which is prepared from 30-40 parts by mass of gamma-silane-terminated modified polyether resin; preferably, the modified polyether resin comprises 32-38 parts by mass of gamma-terminated silane group modified polyether resin; more preferably, the resin composition comprises 33-37 parts by mass of gamma-terminated silane modified polyether resin; specifically, it may be 33 parts by mass, 34 parts by mass, 35 parts by mass, 36 parts by mass, 37 parts by mass or 38 parts by mass. Point values between any of the two are also possible.
The gamma-terminated silane modified polyether resin is selected from Wake resin
STP-E35 or Wake resin
STP-E15. The present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The α -silyl-terminated modified polyether resin and the gamma-silyl-terminated modified polyether resin are compounded to serve as matrix resin, so that the adhesive force, the flexibility and the like of the base material can be improved.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises 2-5 parts by mass of a plasticizer; may be 2 parts by mass, 3 parts by mass, 4 parts by mass or 5 parts by mass; preferably, the amount of the surfactant is 3 to 4.5 parts by mass. Point values between any of the two are also possible.
The plasticizer is preferably selected from one or more of polyether polyol PPG2000, o-benzene plasticizers DIDP, DINP and hydrophobic plasticizers Mesamoll; the present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises 1-2 parts by mass of a moisture scavenger; may be 1 part by mass, 1.5 parts by mass, or 2 parts by mass; but also a point value between the two.
The moisture scavenger of the present invention is preferably selected from one or more of vinyltrimethoxysilane and TI. The present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises 1-5 parts by mass of a cross-linking agent; preferably 2 to 5 parts by mass; more preferably 3 to 5 parts by mass; specifically, it may be 1 part by mass, 2 parts by mass, 3 parts by mass, 4 parts by mass or 5 parts by mass, or a point value therebetween.
The cross-linking agent is tetraethyl orthosilicate. The present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises the following raw materials of 0.5-1 part by mass of a heat-resistant stabilizer; preferably 0.5 to 0.9 parts by mass; more preferably 0.5 to 0.8 parts by mass; the heat-resistant stabilizer is a hindered phenol heat stabilizer; the present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art. Commercially available brands may be 245, 1010.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises 1-3 parts by mass of an adhesion promoter; specifically, the amount of the organic solvent may be 1 part by mass, 2 parts by mass or 3 parts by mass. Point values between any of the two are also possible.
The adhesion promoter is selected from a bisamino silane coupling agent A-1120 or A-1146; the present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art.
The invention provides a solvent-free silane-terminated modified polyether three-proofing paint which comprises 0.5-1 parts by mass of an ultraviolet absorbent; preferably 0.5 to 0.9 parts by mass; more preferably 0.5 to 0.8 parts by mass; the ultraviolet absorbent is a benzotriazole ultraviolet absorbent; the present invention is not limited to the source thereof, and may be commercially available as is well known to those skilled in the art. Commercially available brands may be UV-326, UV-329.
In some of the preferred embodiments of the present invention, include
In some of the preferred embodiments of the present invention, include
The solvent-free silane-terminated modified polyether type three-proofing paint synthesized by the invention overcomes the defects of the existing different types of three-proofing paints, selects silane-terminated modified polyether as matrix resin, compounds a cross-linking agent, an adhesion promoter, a moisture scavenger and various types of stabilizers, does not contain isocyanate groups, does not contain a metal ion catalyst, does not contain a solvent, has low viscosity, is suitable for brushing and spraying, has good adhesive force to a base material, and has good flexibility.
The performance of the silyl-terminated modified polyether resin is between that of organic silicon and that of polyurethane, the silyl-terminated modified polyether resin integrates the performances of the organic silicon and the polyurethane, free isocyanate groups are not contained, the silyl-terminated modified polyether resin takes effect through moisture curing and crosslinking of siloxane at normal temperature, heating is not needed, and a cured adhesive film is high in tensile strength, good in flexibility and excellent in low-temperature resistance.
The invention provides a preparation method of the solvent-free silane-terminated modified polyether three-proofing paint, which comprises the following steps:
A) α -silyl-terminated modified polyether resin, gamma-silyl-terminated modified polyether resin, a plasticizer and a moisture scavenger are mixed and dispersed to obtain a dispersed component;
B) and mixing and stirring the dispersed component with a cross-linking agent, a heat-resistant stabilizer, an adhesion promoter and an ultraviolet absorbent, and defoaming in vacuum to obtain the solvent-free silane-terminated modified polyether tri-proof paint.
The preparation method of the solvent-free silane-terminated modified polyether three-proofing paint provided by the invention comprises the steps of mixing α -silane-terminated modified polyether resin, gamma-silane-terminated modified polyether resin, a plasticizer and a moisture scavenger.
The mixing equipment of the present invention is not limited and may be in a planetary tank as is well known to those skilled in the art.
Dispersing at high speed after mixing; the dispersion speed is preferably 1500-2000 rpm; the preferable dispersing time is 10-15 min.
And mixing and stirring the dispersed component with a cross-linking agent, a heat-resistant stabilizer, an adhesion promoter and an ultraviolet absorbent.
Preferably, the cross-linking agent, the heat-resistant stabilizer, the adhesion promoter and the ultraviolet absorbent are continuously added into the mixed planet kettle for mixing and stirring; the stirring time is 20-30 min; preferably 22-28 min.
Stirring and vacuum defoaming to obtain the solvent-free silane-terminated modified polyether three-proofing paint.
Specifically, after stirring, opening vacuum, keeping the vacuum degree to be more than 0.1MPa, defoaming for 10-15 min, and discharging.
The three-proofing paint prepared by the invention has the advantages of no solvent, no isocyanate group, no metal ion catalyst, low viscosity, higher tensile strength, good toughness, and excellent water resistance and salt spray resistance. The preparation method has simple process and short production period.
The invention provides a solvent-free silyl-terminated modified polyether three-proofing paint which comprises, by mass, 50-65 parts of α -silyl-terminated modified polyether resin, 30-40 parts of gamma-silyl-terminated modified polyether resin, 2-5 parts of a plasticizer, 1-2 parts of a moisture scavenger, 1-5 parts of a cross-linking agent, 0.5-1 part of a heat-resistant stabilizer, 1-3 parts of an adhesion promoter and 0.5-1 part of an ultraviolet absorbent.
In order to further illustrate the invention, the solvent-free silane-terminated modified polyether three-proofing paint and the preparation method thereof provided by the invention are described in detail in the following with reference to the examples.
Example 1
Mixing 55 parts by mass of wacker resin
XT 50, 35 parts by mass of Wake resin
STP-E35, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger are added into a planetary kettle to be dispersed for 10min at high speed, 3 parts by mass of tetraethyl orthosilicate, 0.5 part by mass of heat-resistant stabilizer 1010, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326 are added, the mixture is continuously stirred for 30min, the vacuum degree is opened, the vacuum degree is kept to be more than 0.1MPa, and the material is discharged after defoaming for 10 min.
Example 2
Mixing 55 parts by mass of wacker resin
STP-E10, 35 parts by mass of wacker resin
STP-E35, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger are added into a planetary kettle to be dispersed for 10min at high speed, 3 parts by mass of tetraethyl orthosilicate, 0.5 part by mass of heat-resistant stabilizer 1010, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326 are added, the mixture is continuously stirred for 30min, the vacuum degree is opened, the vacuum degree is kept to be more than 0.1MPa, and the material is discharged after defoaming for 10 min.
Comparative example 1
52 parts by mass of a Wake resin
XT 50, 35 parts by mass of Wake resin
STP-E35, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger are added into a planetary kettle to be dispersed for 10min at high speed, 6 parts by mass of tetraethyl orthosilicate, 0.5 part by mass of heat-resistant stabilizer 245, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326 are added, the mixture is continuously stirred for 30min, the vacuum degree is opened, the vacuum degree is kept to be more than 0.1MPa, and the material is discharged after defoaming for 10 min.
Comparative example 2
Mixing 58 parts by mass of wacker resin
XT 50, 35 parts by mass of Wake resin
STP-E35, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger are added into a planetary kettle to be dispersed for 10min at a high speed, 0.5 part by mass of heat-resistant stabilizer 245, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326 are added, the mixture is continuously stirred for 30min, the vacuum is opened, the vacuum degree is kept to be more than 0.1MPa, and the material is discharged after being defoamed for 10 min.
Comparative example 3
Mixing 35 parts by mass of wacker resin
XT 50, 55 parts by mass of Wake resin
STP-E35, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger are added into a planetary kettle to be dispersed for 10min at high speed, 3 parts by mass of tetraethyl orthosilicate, 0.5 part by mass of heat-resistant stabilizer 245, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326 are added, the mixture is continuously stirred for 30min, the vacuum degree is opened, the vacuum degree is kept to be more than 0.1MPa, and the material is discharged after defoaming for 10 min.
Comparative example 4
Adding 55 parts by mass of conventional high-strength silyl-terminated polyether resin SAT400, 35 parts by mass of conventional high-elasticity silyl-terminated polyether resin SAT303, 3 parts by mass of hydrophobic plasticizer Mesamoll and 1 part by mass of moisture scavenger into a planetary kettle, dispersing at high speed for 10min, adding 3 parts by mass of tetraethyl orthosilicate, 0.5 part by mass of heat-resistant stabilizer 1010, 2 parts by mass of adhesion promoter A-1120 and 0.5 part by mass of ultraviolet absorbent 326, continuously stirring for 30min, opening the vacuum, keeping the vacuum degree to be more than 0.1MPa, defoaming for 10min, and discharging.
Example 3
The performances of examples 1 to 2 of the present invention and comparative examples 1 to 4 were measured, wherein:
detecting the surface dry time according to GB/T13477;
the tensile strength and the elongation at break are detected according to GB/T528;
the viscosity test was according to the rotational test method in GBT 22235-2008;
the hardness was tested according to HG T2368-;
the volume resistivity is tested according to GB/T1410-2006;
the dielectric strength was tested according to GB/T1695-2005;
water resistance was tested according to GB/T1733-1993;
the salt spray resistance was tested according to GB/T2423.17-2008.
The results are shown in Table 1.
TABLE 1
The invention discloses a solvent-free silyl-terminated modified polyether three-proofing paint, which has the performance meeting the following requirements that the solvent-free silyl-terminated modified polyether three-proofing paint does not contain a metal catalyst, the surface drying time is less than or equal to 40min, the viscosity is less than 1000MPa & s, the tensile strength is more than 5MPa, the hardness is more than 65A, the elongation at break is more than 200%, the excessively high viscosity is not suitable for a spraying process, the tensile strength is high, the flexibility is good, and no abnormality exists after long-term water resistance and salt spray resistance tests.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The solvent-free silane-terminated modified polyether three-proofing paint is characterized by comprising the following raw materials:
2. the solventless silane-terminated modified polyether co-lacquer of claim 1 wherein the α -terminated silane-modified polyether resin is selected from the group consisting of Wacker resins
XT 50、
STP-E10 or
STP-E30；
The gamma-terminated silane modified polyether resin is selected from Wacker resin
STP-E35 or Wake resin
STP-E15。
3. The solvent-free silane-terminated modified polyether tri-proof paint as claimed in claim 1, wherein the plasticizer is one or more selected from the group consisting of polyether polyol PPG2000, o-benzene plasticizer DIDP, DINP and hydrophobic plasticizer Mesamoll;
the moisture scavenger is selected from one or more of vinyl trimethoxy silane and TI;
the cross-linking agent is tetraethyl orthosilicate.
4. The solvent-free silane-terminated modified polyether tri-proof paint as claimed in claim 1, wherein the heat stabilizer is a hindered phenol heat stabilizer;
the adhesion promoter is selected from a bisamino silane coupling agent A-1120 or A-1146;
the ultraviolet absorbent is benzotriazole ultraviolet absorbent.
5. The solvent-free silane-terminated modified polyether tri-proof coating of claim 1, comprising
6. The solvent-free silane-terminated modified polyether tri-proof coating of claim 5, comprising
7. The preparation method of the solvent-free silane-terminated modified polyether tri-proof paint as defined in any one of claims 1 to 6, which is characterized by comprising the following steps:
A) α -silyl-terminated modified polyether resin, gamma-silyl-terminated modified polyether resin, a plasticizer and a moisture scavenger are mixed and dispersed to obtain a dispersed component;
B) and mixing and stirring the dispersed component with a cross-linking agent, a heat-resistant stabilizer, an adhesion promoter and an ultraviolet absorbent, and defoaming in vacuum to obtain the solvent-free silane-terminated modified polyether tri-proof paint.
8. The method according to claim 7, wherein the dispersion time is 10 to 15 min.
9. The preparation method according to claim 7, wherein the stirring time in the step B) is 20-30 min.
10. The method according to claim 7, wherein the degree of vacuum in the defoaming in the step B) is 0.1MPa or more; the defoaming time is 10-15 min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113604139A (en) * | 2021-07-30 | 2021-11-05 | 杭州埃比森新材料有限公司 | Transparent organic silicon coating and preparation method thereof |
| CN115093779A (en) * | 2022-06-24 | 2022-09-23 | 广州集泰化工股份有限公司 | Solvent-free transparent waterproof coating and preparation method thereof |
| CN116574433A (en) * | 2023-05-31 | 2023-08-11 | 尚德环保科技有限公司 | Preparation method of silane modified polyether waterproof coating |
| CN117363296A (en) * | 2023-10-13 | 2024-01-09 | 广东高士高科实业有限公司 | High-strength equal-proportion type double-component silane modified adhesive and preparation method thereof |
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| CN117363296A (en) * | 2023-10-13 | 2024-01-09 | 广东高士高科实业有限公司 | High-strength equal-proportion type double-component silane modified adhesive and preparation method thereof |
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