CN113462348A - Online dispensing fast curing sealant and preparation method thereof - Google Patents
Online dispensing fast curing sealant and preparation method thereof Download PDFInfo
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- CN113462348A CN113462348A CN202110775150.XA CN202110775150A CN113462348A CN 113462348 A CN113462348 A CN 113462348A CN 202110775150 A CN202110775150 A CN 202110775150A CN 113462348 A CN113462348 A CN 113462348A
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- parts
- curing sealant
- fast curing
- silicone oil
- line dispensing
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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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses an on-line dispensing fast curing sealant and a preparation method thereof, wherein the on-line dispensing fast curing sealant comprises the following components: 100 parts of functional group-terminated polymethylsiloxane; 1-20 parts of alkaline earth metal compound and mixture thereof; 1-20 parts of modified silicone oil; 1-30 parts of fumed silica; 1-12 parts of a mixed crosslinking agent; 1-50 parts of high-temperature filler; 0.002-10 parts of catalyst; 0-10 parts of pigment. The on-line dispensing fast curing sealant disclosed by the invention has better sealing oil resistance, heat-resistant stability and solvent resistance.
Description
Technical Field
The application belongs to the technical field of sealing glue, and particularly relates to an online glue-dispensing fast-curing sealant and a preparation method thereof.
Background
The sealing waterproof material is very critical in industries such as security products, electric tools, water meters and electric meters, small kitchen appliances, outdoor illumination, electric equipment, new energy, car lamps, automobiles, industrial control equipment, communication and the like, and is related to the quality and the service life of the products. At present, in the industries, when the traditional compression molding sealing ring is used and equipment is assembled, workers are required to manually install the sealing ring on each product so as to achieve the aim of sealing and waterproofing.
However, since the seal ring is formed first and then mounted, there is inevitably an error in mounting the seal ring, and poor sealing such as water leakage is likely to occur. In addition, the sealing ring is formed firstly and then is installed, so that the assembling process is complex, the labor cost is high, and the production efficiency is not high.
Disclosure of Invention
The application aims to provide the on-line dispensing fast curing sealant and the preparation method thereof, so as to realize the automatic production of the sealing washer, save labor, improve the production efficiency and reduce the defective rate of production.
In order to achieve the purpose, the technical scheme of the application is as follows:
an on-line dispensing fast curing sealant comprises the following components:
100 parts of functional group-terminated polymethylsiloxane; 1-20 parts of alkaline earth metal compound and mixture thereof; 1-20 parts of modified silicone oil; 1-30 parts of fumed silica; 1-12 parts of a mixed crosslinking agent; 1-50 parts of high-temperature filler; 0.002-10 parts of catalyst; 0-10 parts of pigment.
Further, the alkaline earth metal compound and the mixture thereof are magnesium hydroxide or calcium carbonate.
Further, the mixed crosslinking agent is hydrogen-containing silicone oil or alkoxy siloxane.
Further, the high-temperature filler is iron oxide or cerium oxide.
Further, the catalyst is titanium or platinum.
Further, the pigment is titanium dioxide or carbon powder.
Further, the modified silicone oil is monoalkoxy terminated silicone oil or epoxy terminated silicone oil.
Further, the online dispensing fast curing sealant also comprises the following components:
0.1-2 parts of functional selectivity additive, wherein the functional selectivity additive is dimethyl silicone oil or phenyl silicone oil.
The application also provides a preparation method of the on-line dispensing fast curing sealant, which comprises the following steps:
respectively adding 100 parts of functional group-terminated polymethylsiloxane, 1-20 parts of alkaline earth metal compound and mixture thereof, 1-20 parts of modified silicone oil, 1-30 parts of fumed silica and 1-50 parts of high-temperature filler into a planetary stirrer, heating to 160-170 ℃, and vacuumizing and stirring for 2-4 hours to remove water;
cooling to room temperature, adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation and emptying, and preparing the on-line dispensing fast curing sealant.
Further, the preparation method of the on-line dispensing fast curing sealant further comprises the following steps:
adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation, adding 0.1-2 parts of functional selective assistant, and continuously stirring for 10-50min under vacuum isolation to prepare the on-line dispensing fast curing sealant.
According to the on-line dispensing fast curing sealant and the preparation method thereof, polysiloxane with a main chain functional group and polysiloxane with a side chain containing a functional group are mixed for use, so that a crosslinking point is improved, and the tearing strength of an elastomer is improved. The alkaline earth metal compound and the mixture thereof are added in the formula to improve the sealing oil resistance of the sealant in hot oil, the oxides such as ferric oxide, cerium oxide and the like and the mixture are added in the formula to improve the heat resistance stability of the sealant, and the solvent resistance of the sealant can be improved by adding the modified silicone oil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The general idea of the application is to provide a sealing glue which can be quickly cured and can be used for dispensing in the assembling process (also called on-line dispensing), industries such as security products, electric tools, water meter ammeters, small kitchen appliances, outdoor lighting, electric steam equipment, new energy, car lights, cars, industrial control equipment, communication and the like, and a traditional preformed silica gel and silicon rubber sealing ring waterproof scheme. The novel automatic waterproof sealing solution is provided for the problems that the traditional sealing ring needs manual assembly, neglected assembly, poor assembly and the like.
In one embodiment, an on-line dispensing fast curing sealant is provided, which comprises the following components:
100 parts of functional group-terminated polymethylsiloxane; 1-20 parts of alkaline earth metal compound and mixture thereof; 1-20 parts of modified silicone oil; 1-30 parts of fumed silica; 1-12 parts of a mixed crosslinking agent; 1-50 parts of high-temperature filler; 0.002-10 parts of catalyst; 0-10 parts of pigment.
In one example of the present application, the alkaline earth metal compound and the mixture thereof may be magnesium hydroxide or calcium carbonate, etc.
In one example of the present application, the hybrid crosslinking agent may be hydrogen-containing silicone oil or alkoxy siloxane, or the like.
In one example of the present application, the high temperature filler may be iron oxide or cerium oxide, etc.
As an example of the present application, the catalyst may be titanium or platinum, etc.
In an example of the present application, the pigment may be titanium dioxide, carbon powder, or the like.
In one example of the present application, the modified silicone oil is a monoalkoxy-terminated silicone oil, or an epoxy-terminated silicone oil, or the like. The functional group-terminated polymethylsiloxane is mixed with modified silicone oil for use, so that the polysiloxane with the main chain functional group is mixed with the polysiloxane with the side chain containing the functional group, and the crosslinking point is improved
In another embodiment of the present application, the fast curing sealant for online dispensing further comprises the following components:
0.1-2 parts of functional selectivity auxiliary agent.
In this embodiment, the functional selectivity promoter is dimethyl silicone oil or phenyl silicone oil. According to different flowing states required, adding a proper amount of functional selectivity auxiliary agent, adjusting the increased parts according to the flowing needs, wherein the more the addition, the larger the flowing.
The viscosity of the fast curing sealant is dispensed on line by the application, which is determined by the polymethyl siloxane terminated by functional groups with different viscosities, and the total viscosity of the prepared glue is close to that of the glue with different amounts of other materials, and the elasticity and the hardness are different.
The specific components of the in-line spot-on fast cure sealant of different viscosities are further illustrated by specific examples below.
In the case of example 1, the following examples,
comprises the following components: 100 parts of polymethyl siloxane with the mixed viscosity of 50000mpa.s and end capping of functional groups; 20 parts of alkaline earth metal compound and mixture thereof; 20 parts of modified silicone oil; 15 parts of fumed silica; 12 parts of a mixed crosslinking agent; 10 parts of high-temperature filler; 10 parts of a catalyst; 10 parts of pigment.
In the case of example 2, the following example was carried out,
comprises the following components: 100 parts of polymethyl siloxane with the mixed viscosity of 200000mpa.s and end capped by functional groups; 15 parts of alkaline earth metal compound and mixture thereof; 14 parts of modified silicone oil; 5 parts of fumed silica; 8 parts of a mixed crosslinking agent; 35 parts of high-temperature filler; 10 parts of a catalyst; 10 parts of pigment.
In another embodiment, a method for preparing an on-line dispensing fast curing sealant is provided, which comprises:
respectively adding 100 parts of functional group-terminated polymethylsiloxane, 1-20 parts of alkaline earth metal compound and mixture thereof, 1-20 parts of modified silicone oil, 1-30 parts of fumed silica and 1-50 parts of high-temperature filler into a planetary stirrer, heating to 160-170 ℃, and vacuumizing and stirring for 2-4 hours to remove water;
cooling to room temperature, adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation and emptying, and preparing the on-line dispensing fast curing sealant.
An example of the preparation method of the on-line dispensing fast curing sealant further comprises the following steps:
adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation, adding 0.1-2 parts of functional selective assistant, and continuously stirring for 10-50min under vacuum isolation to prepare the on-line dispensing fast curing sealant.
In practical application, the prepared on-line dispensing fast curing sealant is dispensed into a mould to be vulcanized into an O-shaped ring test piece with a certain standard, and the sealing performance is tested after the O-shaped ring test piece is vulcanized for 7 days at room temperature.
Experiments prove that the material has excellent operability, can meet the requirement of complicated product sealing and waterproof design through an automatic scheme, greatly reduces the man-hour of manually installing the sealing ring, and simultaneously reduces the bad ratio of manually installing the sealing ring. After the sealing material is cured, the sealing material has good weather resistance, can stably work in an environment range from-50 ℃ to +180 ℃. The acid and alkali resistance is good, and the coating can be suitable for various complex application environments. After the material is cured, the material is very easy to repair, only needs to be easily peeled by hands, and has no residue.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an online point is glued and is solidified sealed glue fast, which characterized in that, online point is glued and is solidified sealed glue fast, includes following component:
100 parts of functional group-terminated polymethylsiloxane; 1-20 parts of alkaline earth metal compound and mixture thereof; 1-20 parts of modified silicone oil; 1-30 parts of fumed silica; 1-12 parts of a mixed crosslinking agent; 1-50 parts of high-temperature filler; 0.002-10 parts of catalyst; 0-10 parts of pigment.
2. The in-line spot gluing rapid curing sealant of claim 1 wherein the alkaline earth metal compound and mixtures thereof is magnesium hydroxide or calcium carbonate.
3. The in-line dispensing fast curing sealant according to claim 1, wherein the hybrid cross-linking agent is hydrogen-containing silicone oil or alkoxy siloxane.
4. The in-line spot gluing rapid curing sealant as claimed in claim 1, wherein the high temperature filler is iron oxide or cerium oxide.
5. The in-line spot-gluing rapid curing sealant as claimed in claim 1, wherein the catalyst is titanium or platinum.
6. The on-line dispensing fast curing sealant as claimed in claim 1, wherein the pigment is titanium dioxide or carbon powder.
7. The sealant of claim 1, wherein the modified silicone oil is a mono-alkoxy terminated silicone oil or an epoxy terminated silicone oil.
8. The in-line dispensing fast curing sealant according to claim 1, further comprising the following components:
0.1-2 parts of functional selectivity additive, wherein the functional selectivity additive is dimethyl silicone oil or phenyl silicone oil.
9. The method for preparing the on-line dispensing fast curing sealant according to claim 1, wherein the method for preparing the on-line dispensing fast curing sealant comprises the following steps:
respectively adding 100 parts of functional group-terminated polymethylsiloxane, 1-20 parts of alkaline earth metal compound and mixture thereof, 1-20 parts of modified silicone oil, 1-30 parts of fumed silica and 1-50 parts of high-temperature filler into a planetary stirrer, heating to 160-170 ℃, and vacuumizing and stirring for 2-4 hours to remove water;
cooling to room temperature, adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation and emptying, and preparing the on-line dispensing fast curing sealant.
10. The method for preparing an on-line dispensing fast curing sealant according to claim 9, wherein the method for preparing an on-line dispensing fast curing sealant further comprises:
adding 1-12 parts of mixed cross-linking agent, 0.002-10 parts of catalyst and 0-10 parts of pigment, stirring for 10-50min under vacuum isolation, adding 0.1-2 parts of functional selective assistant, and continuously stirring for 10-50min under vacuum isolation to prepare the on-line dispensing fast curing sealant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110775150.XA CN113462348A (en) | 2021-07-07 | 2021-07-07 | Online dispensing fast curing sealant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110775150.XA CN113462348A (en) | 2021-07-07 | 2021-07-07 | Online dispensing fast curing sealant and preparation method thereof |
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| CN113462348A true CN113462348A (en) | 2021-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115197670A (en) * | 2022-08-29 | 2022-10-18 | 烟台市福山义昌精细化工厂 | Special sealant for petroleum casing screw threads and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139022A (en) * | 2020-01-03 | 2020-05-12 | 深圳市富邦新材科技有限公司 | Special silicon-containing adhesive for sealing with temperature resistance, oil resistance and solvent resistance and preparation method thereof |
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2021
- 2021-07-07 CN CN202110775150.XA patent/CN113462348A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139022A (en) * | 2020-01-03 | 2020-05-12 | 深圳市富邦新材科技有限公司 | Special silicon-containing adhesive for sealing with temperature resistance, oil resistance and solvent resistance and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115197670A (en) * | 2022-08-29 | 2022-10-18 | 烟台市福山义昌精细化工厂 | Special sealant for petroleum casing screw threads and preparation method thereof |
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