CN111394032A - Two-component silicone hollow glass elastic sealant - Google Patents
Two-component silicone hollow glass elastic sealant Download PDFInfo
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- CN111394032A CN111394032A CN202010355409.0A CN202010355409A CN111394032A CN 111394032 A CN111394032 A CN 111394032A CN 202010355409 A CN202010355409 A CN 202010355409A CN 111394032 A CN111394032 A CN 111394032A
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- hollow glass
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/04—Epoxynovolacs
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a two-component silicone hollow glass elastic sealant. The sealant comprises a component A and a component B, wherein the component A is prepared from epoxy resin, silicone, nano calcium powder, nano microspheres and coarse whiting powder, and the component B comprises 40-50 parts of silicone, a toughening agent, a coupling agent, a waterproof agent and dibutyltin dilaurate silicate. The silicone hollow glass sealant solves the problems of low viscosity and poor sealing and heat insulation effects of the existing silicone hollow glass sealant, and provides the silicone hollow glass sealant with high viscosity and good sealing and heat insulation effects.
Description
Technical Field
The invention relates to a two-component silicone hollow glass elastic sealant, and belongs to the field of hollow glass sealants.
Background
Insulating glass is always exposed to external moisture penetration and temperature changes over its lifetime, requiring that the insulating glass paste must first prevent the ingress of external moisture into the air layer of the insulating glass. The hollow glass system must adopt double-channel sealing, prevent the invasion of steam with the first sealant, keep the stability of structure with the second sealant. When selecting the hollow glass glue, the properties of the glue, the convenience of using the glue, the influence of the glue on human health, safety, environment and the like are comprehensively considered.
Silicone is commonly called silicone oil or dimethicone, and the molecular formula is (CH)3)3SiO(CH3)2SiOnSi(CH3)3Is tied withThe polymer of the organic silicon oxide is a series of polydimethylsiloxanes with different molecular weights, and the viscosity increases along with the increase of the molecular weight. The product has stable chemical properties, strong hydrophobicity, and no water solubility, and can be dissolved in nonpolar solvents such as gasoline and toluene.
Patent 201410543078.8 discloses a silicone sealant and its preparation method, wherein the sealant comprises hydroxy-terminated polydimethylsiloxane, nano calcium carbonate, fumed silica, coupling agent, tackifier, mildew preventive and catalyst, and long-chain liquid silicone resin is added as plasticizer to improve certain viscosity, but the heat insulation effect of the sealant as hollow glass sealant is poor.
Patent 201810936193.x provides a high-strength double-component polyurethane hollow glass sealant which is prepared from a component A and a component B, wherein the component A uses end-capped polyether, a plasticizer, a filler and a coupling agent, the component B uses polyether polyol, a pigment, a curing agent and a catalyst, and the patent takes the end-capped polyether and the polyether polyol as main raw materials.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the two-component silicone hollow glass elastic sealant. The silicone hollow glass sealant solves the problems of low viscosity and poor sealing and heat insulation effects of the existing silicone hollow glass sealant, and provides the silicone hollow glass sealant with high viscosity and good sealing and heat insulation effects.
A two-component silicone hollow glass elastic sealant comprises a component A and a component B;
the weight ratio of the component A to the component B is (2-3): 1;
the component A comprises the following raw materials in parts by weight: 20-30 parts of epoxy resin, 10-15 parts of silicone, 25-35 parts of nano calcium powder, 0.5-1.5 parts of nano microspheres and 35-45 parts of coarse whiting powder;
the component B comprises the following raw materials in parts by weight: 40-50 parts of silicone, 10-20 parts of a toughening agent, 5-15 parts of a coupling agent, 20-30 parts of a waterproof agent and 0.3-1.4 parts of dibutyltin dilaurate.
Further, the epoxy resin is one or more of novolac epoxy resin, o-cresol novolac epoxy resin, triglycidyl-p-aminophenol, tetraphenolethane tetraglycidyl ether and dicyclopentyl oxide.
Furthermore, the particle size of the nano calcium powder is 1500-2000 meshes.
Further, the toughening agent is dibutyl phthalate.
Furthermore, the coupling agent is an organosilane coupling agent, and the organosilane coupling agent is one of vinyltrichlorosilane, methyltrimethoxysilane and tetramethoxysilane.
Further, the water repellent agent is propyl methoxy polysiloxane.
Further, the preparation method of the two-component silicone hollow glass elastic sealant comprises the following steps:
(1) weighing the raw materials according to the weight parts;
(2) adding epoxy resin, silicone, nano calcium powder, nano microspheres and coarse whiting powder into a reaction kettle, heating to melt, and uniformly stirring to obtain a component A;
(3) heating and melting silicone, a toughening agent, a coupling agent and a waterproof agent, stirring and mixing, and adding dibutyltin dilaurate for continuous stirring to obtain a component B;
(4) and uniformly mixing the prepared component A and the component B according to a ratio, and vacuumizing to obtain the two-component silicone hollow glass elastic sealant.
Has the advantages that:
(1) the two-component silicone hollow glass elastic sealant has the advantages of high impact resistance, strong toughness, strong binding power, high stability and good heat insulation effect.
(2) The invention can be cured quickly and is convenient to use.
Detailed Description
In order to make the technical solutions in the present application better understood, the present invention is further described below with reference to examples, which are only a part of examples of the present application, but not all examples, and the present invention is not limited by the following examples.
Example 1
Preparing equipment: the equipment required by the technical scheme comprises a reaction kettle provided with a stirrer, a heating temperature controller and a vacuum-pumping system.
30 parts of novolac epoxy resin, 15 parts of silicone, 25 parts of nano calcium powder, 1 part of nano microspheres and 40 parts of heavy calcium powder, and stirring at the temperature of 150 ℃ for 1 hour to obtain a component A mixed solution;
41 parts of silicone, 12 parts of dibutyl phthalate, 14 parts of vinyl trichlorosilane, 25 parts of propyl methoxy polysiloxane and 1 part of dibutyltin dilaurate are mixed and stirred, the stirring temperature is 150 ℃, the stirring time is 30min, and a component B mixture is obtained after stirring is finished;
and finally, mixing and stirring the component A mixed solution and the component B mixture according to the mass ratio of 2:1 to obtain the two-component silicone hollow glass elastic sealant, wherein the stirring temperature is room temperature, and the stirring time is 30 min.
Example 2
Preparing equipment: the equipment required by the technical scheme comprises a reaction kettle provided with a stirrer, a heating temperature controller and a vacuum-pumping system.
28 parts of o-cresol formaldehyde epoxy resin, 12 parts of silicone, 27 parts of nano calcium powder, 1 part of nano microspheres and 40 parts of heavy calcium powder, and stirring at the temperature of 150 ℃ for 1 hour to obtain a component A mixed solution;
43 parts of silicone, 12 parts of dibutyl phthalate, 10 parts of methyltrimethoxysilane, 25 parts of propyl methoxy polysiloxane and 1 part of dibutyltin dilaurate are mixed and stirred, the stirring temperature is 150 ℃, the stirring time is 30min, and a component B mixture is obtained after stirring is finished;
and finally, mixing and stirring the component A mixed solution and the component B mixture according to the mass ratio of 2.5:1 to obtain the double-component silicone hollow glass elastic sealant, wherein the stirring temperature is room temperature, and the stirring time is 30 min.
Example 3
Preparing equipment: the equipment required by the technical scheme comprises a reaction kettle provided with a stirrer, a heating temperature controller and a vacuum-pumping system.
29 parts of dicyclopentyl oxide, 14 parts of silicone, 26 parts of nano calcium powder, 1 part of nano microspheres and 40 parts of heavy calcium powder, and stirring at the temperature of 150 ℃ for 1 hour to obtain a component A mixed solution;
42 parts of silicone, 15 parts of dibutyl phthalate, 12 parts of methyltrimethoxysilane, 23 parts of propyl methoxy polysiloxane and 1 part of dibutyltin dilaurate are mixed and stirred, the stirring temperature is 150 ℃, the stirring time is 30min, and a component B mixture is obtained after stirring is finished;
and finally, mixing and stirring the component A mixed solution and the component B mixture according to the mass ratio of 3:1 to obtain the double-component silicone hollow glass elastic sealant, wherein the stirring temperature is room temperature, and the stirring time is 30 min.
Comparative example 1
The modified silicone hollow glass sealant mainly comprises 40 parts of silicone, 5 parts of nitrile rubber, 5 parts of silicone oil, 2 parts of a grafting agent, 3 parts of nano copper powder, 2 parts of diethyl ether, 75 parts of polyethylene terephthalate, 34 parts of polyacrylate, 18 parts of polymethacrylate, 34 parts of plant cellulose, 48 parts of sodium chloride, 32 parts of coal tar, 42 parts of vinyl acetate, 4 parts of urea, 58 parts of starch, 50 parts of glycol dimethacrylate and 6 parts of high-molecular polyvinyl alcohol. Adding silicone, a grafting agent, nano copper powder and diethyl ether into a reaction kettle, heating and melting to prepare modified silicone, mixing and melting nitrile rubber, polyethylene terephthalate, polyacrylate, polymethacrylate, plant cellulose, vinyl acetate, glycol dimethacrylate and high-molecular polyvinyl alcohol, adding sodium chloride and urea, continuously stirring, beating silicon oil, starch and coal tar at a high speed, adding the modified silicone, and stirring.
Comparative example 2
The existing silicone hollow glass cement is available on the market.
The resin casting body performance test of the special resin with high strength, high toughness and impact resistance obtained in the above examples and comparative examples is shown in the attached table 1:
TABLE 1 Performance test indexes
| Test items | Unit of | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Thickness of expansion at 210 DEG C | Micron meter | 5.5 | 5.2 | 5.3 | 6.5 | 8.9 |
| Elongation percentage | ％ | 61 | 63 | 60 | 64 | 61 |
| Adhesion force | N/25mm | 6.3 | 6.4 | 6.4 | 6.5 | 6.1 |
| Water vapor transmission rate | ％ | 8.5 | 8 | 10 | 9 | 12 |
Claims (8)
1. A two-component silicone hollow glass elastic sealant is characterized by comprising a component A and a component B;
the weight ratio of the component A to the component B is (2-3): 1;
the component A comprises the following raw materials in parts by weight: 20-30 parts of epoxy resin, 10-15 parts of silicone, 25-35 parts of nano calcium powder, 0.5-1.5 parts of nano microspheres and 35-45 parts of coarse whiting powder;
the component B comprises the following raw materials in parts by weight: 40-50 parts of silicone, 10-20 parts of a toughening agent, 5-15 parts of a coupling agent, 20-30 parts of a waterproof agent and 0.3-1.4 parts of dibutyltin dilaurate.
2. The elastic sealant for hollow glass according to claim 1, wherein the epoxy resin is one or more of novolac epoxy resin, o-cresol novolac epoxy resin, triglycidyl-p-aminophenol, tetraphenolethane tetraglycidyl ether, dicyclopentyl oxide.
3. The hollow glass elastic sealant as claimed in claim 1, wherein the nano calcium powder has a particle size of 1500-2000 mesh.
4. The hollow glass elastomeric sealant according to claim 1 wherein the toughening agent is dibutyl phthalate.
5. An elastic sealant for hollow glass according to claim 1 wherein said coupling agent is an organosilane coupling agent.
6. The elastic sealant for hollow glass according to claim 5, wherein said organosilane coupling agent is one of vinyltrichlorosilane, methyltrimethoxysilane and tetramethoxysilane.
7. The elastic sealant for hollow glass according to claim 1, wherein the water repellent agent is propyl methoxy polysiloxane.
8. The process for preparing an elastic sealant for hollow glass according to any one of claims 1 to 7, which comprises the steps of:
(1) weighing the raw materials according to the weight part of claim 1;
(2) adding epoxy resin, silicone, nano calcium powder, nano microspheres and coarse whiting powder into a reaction kettle, heating to melt, and uniformly stirring to obtain a component A;
(3) heating and melting silicone, a toughening agent, a coupling agent and a waterproof agent, stirring and mixing, and adding dibutyltin dilaurate for continuous stirring to obtain a component B;
(4) and uniformly mixing the prepared component A and the component B according to a ratio, and vacuumizing to obtain the two-component silicone hollow glass elastic sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355409.0A CN111394032A (en) | 2020-04-29 | 2020-04-29 | Two-component silicone hollow glass elastic sealant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355409.0A CN111394032A (en) | 2020-04-29 | 2020-04-29 | Two-component silicone hollow glass elastic sealant |
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| CN111394032A true CN111394032A (en) | 2020-07-10 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005281631A (en) * | 2004-03-31 | 2005-10-13 | Aica Kogyo Co Ltd | Adhesive composition |
| JP2007099806A (en) * | 2005-09-30 | 2007-04-19 | Aica Kogyo Co Ltd | Adhesive |
| CN101831271A (en) * | 2010-03-18 | 2010-09-15 | 常熟市恒信粘胶有限公司 | Hollow glass bi-component organosilicone sealant and preparation method and application thereof |
| CN102352214A (en) * | 2011-08-05 | 2012-02-15 | 曾庆铭 | Double-component silicone structural sealant |
| CN107163888A (en) * | 2017-07-07 | 2017-09-15 | 东莞市德聚胶接技术有限公司 | Epoxy resin embedding adhesive and preparation method thereof |
| CN109810670A (en) * | 2019-01-30 | 2019-05-28 | 温州包鹿新材料有限公司 | A kind of bi-component fire prevention silicone sealant and preparation method thereof |
| CN109880569A (en) * | 2019-02-28 | 2019-06-14 | 迪马新材料科技（苏州）有限公司 | A kind of MS sealant of epoxy resin modification |
| CN110205084A (en) * | 2019-06-13 | 2019-09-06 | 罗青菊 | A kind of expediting setting type organosilicon sealant |
| CN110564347A (en) * | 2019-09-09 | 2019-12-13 | 上海汉司实业有限公司 | One-component epoxy structure adhesive for waterproof sealing and preparation method thereof |
-
2020
- 2020-04-29 CN CN202010355409.0A patent/CN111394032A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005281631A (en) * | 2004-03-31 | 2005-10-13 | Aica Kogyo Co Ltd | Adhesive composition |
| JP2007099806A (en) * | 2005-09-30 | 2007-04-19 | Aica Kogyo Co Ltd | Adhesive |
| CN101831271A (en) * | 2010-03-18 | 2010-09-15 | 常熟市恒信粘胶有限公司 | Hollow glass bi-component organosilicone sealant and preparation method and application thereof |
| CN102352214A (en) * | 2011-08-05 | 2012-02-15 | 曾庆铭 | Double-component silicone structural sealant |
| CN107163888A (en) * | 2017-07-07 | 2017-09-15 | 东莞市德聚胶接技术有限公司 | Epoxy resin embedding adhesive and preparation method thereof |
| CN109810670A (en) * | 2019-01-30 | 2019-05-28 | 温州包鹿新材料有限公司 | A kind of bi-component fire prevention silicone sealant and preparation method thereof |
| CN109880569A (en) * | 2019-02-28 | 2019-06-14 | 迪马新材料科技（苏州）有限公司 | A kind of MS sealant of epoxy resin modification |
| CN110205084A (en) * | 2019-06-13 | 2019-09-06 | 罗青菊 | A kind of expediting setting type organosilicon sealant |
| CN110564347A (en) * | 2019-09-09 | 2019-12-13 | 上海汉司实业有限公司 | One-component epoxy structure adhesive for waterproof sealing and preparation method thereof |
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Application publication date: 20200710 |