CN111057483A - Silica gel belt - Google Patents
Silica gel belt Download PDFInfo
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- CN111057483A CN111057483A CN201911288326.8A CN201911288326A CN111057483A CN 111057483 A CN111057483 A CN 111057483A CN 201911288326 A CN201911288326 A CN 201911288326A CN 111057483 A CN111057483 A CN 111057483A
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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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
- C08L83/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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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
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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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J2463/00—Presence of epoxy resin
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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
- C09J2483/00—Presence of polysiloxane
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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
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- C09J2483/00—Presence of polysiloxane
- C09J2483/006—Presence of polysiloxane in the substrate
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Abstract
The invention discloses a silica gel belt, and particularly relates to the technical field of concrete, wherein the used main materials comprise, by weight, 50-100 parts of a silicone rubber elastomer, 5-10 parts of a coupling agent, 5-10 parts of silicon carbide and 10-20 parts of aluminum powder. The invention adopts the silicon rubber elastomer raw material, so that the adhesive tape has the self-dissolving capacity at room temperature, the toughened filler silicon dioxide is added into the raw material, the elongation of the silica tape is 300-500%, the inner part of the silica tape is added with a layer of additional fiber glass substrate and a layer of self-dissolving silicon rubber coating, the mechanical protection effect can be realized under the high temperature condition, after the adhesive tape is placed for a plurality of hours at the ambient temperature, the surfaces of the adhesive tapes can be adhered together under the action of small pressure, the adhesive tape has good elasticity and environmental tolerance, the sealing effect is good after the adhesive tapes are mutually fused, and the installation and the use are convenient.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to a silica gel belt.
Background
The silicone rubber elastomer is used as a base material, and is added with an independently developed auxiliary material, and is subjected to high-temperature mixing and vulcanization, so that the silicone rubber elastomer is changed in performance and cannot be adhered to an article, but the modified silicone rubber is adhered to each other and gradually integrated (the integration time is positively correlated with the temperature), and the product is strong in inertia, can not react with most of oils and cleaning agent reagents, and can be used for filling, sealing, protection and the like.
In the current aircraft manufacturing process in China, the end of the pipeline is mostly sealed through gluing, the long-time sealing glue effect is poor, in an electric circuit, the tail filling, thickening and other protection of the connector are all felt products, the flame retardance is poor, the adsorption force is strong, and after the aircraft flies for a period of time, the part is easy to age and rot at an accelerated speed due to water vapor and salt fog absorbed by the felt, so that the flight safety and reliability of the aircraft are influenced.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a silica gel tape, which is prepared by using a raw material of a silicone rubber elastomer, so that the silica gel tape has an autolysis capability at room temperature, adding a toughening filler silica into the raw material, so that the elongation of the silica gel tape ranges from 300% to 500%, adding an additional fiber glass substrate and an autolysis silicone rubber coating into the silica gel tape, and thus, the silica gel tape can play a role in mechanical protection at high temperature, and after being placed at ambient temperature for several hours, the surfaces of the silica gel tape can be adhered together under a very small pressure, so that the silica gel tape has good elasticity and environmental tolerance, and once being fused, the silica gel tape has a good sealing effect and is convenient to install and use.
In order to achieve the purpose, the invention provides the following technical scheme: a silica gel belt comprises, by weight, 50-100 parts of a silicone rubber elastomer, 5-10 parts of a coupling agent, 5-10 parts of silicon carbide, 10-20 parts of aluminum powder, 5-15 parts of boron nitride, 30-50 parts of a fiber glass substrate, 1-5 parts of an autolyzed silicone rubber coating, 5-20 parts of epoxy resin, 2-10 parts of an acrylate monomer, 5-10 parts of a toughening filler, 1-5 parts of a dispersing agent and 15-30 parts of a release film.
In a preferred embodiment, the used main materials comprise, by weight, 60-90 parts of a silicone rubber elastomer, 6-9 parts of a coupling agent, 6-9 parts of silicon carbide, 12-18 parts of aluminum powder, 8-12 parts of boron nitride, 35-45 parts of a fiber glass substrate, 1-5 parts of an autolyzed silicone rubber coating, 10-15 parts of epoxy resin, 5-8 parts of an acrylate monomer, 6-8 parts of a toughening filler, 2-4 parts of a dispersing agent and 20-25 parts of a release film.
In a preferred embodiment, the coupling agent comprises isopropyl triisostearoyl titanate, isopropyl titanate, tetraoctyl titanate, tetratitanate, and titanium oxoacetate in a mixing ratio of 3: 1: 1.5: 2: 0.5.
In a preferred embodiment, the toughening filler is specifically silica, and the dispersant is polyethylene glycol and polyvinyl alcohol, wherein the ratio of polyethylene glycol to polyvinyl alcohol is 3: 1.
In a preferred embodiment, the method further comprises a preparation method of the silica gel strip;
the method specifically comprises the following operation steps:
the method comprises the following steps: preparing raw materials of a silicone rubber elastomer, a coupling agent, silicon carbide, aluminum powder, boron nitride and a fiber glass substrate, putting the silicone rubber elastomer and the fiber glass substrate into a heating container, continuously heating to melt the silicone rubber elastomer and the fiber glass substrate in the container, and then pouring the coupling agent, the silicon carbide, the aluminum powder and the boron nitride;
step two: pouring the melted liquid into a stirrer to be stirred for 1-2h, setting the temperature in the stirrer to be 50-60 ℃, and fully mixing the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder, the boron nitride and the fiber glass substrate;
step three: pouring the stirred solution out, respectively adding a proper amount of toughening filler and dispersant into the solution, stirring for 20-40min by manpower, and then putting the solution into a refrigerating chamber for 5-8h until the solution is cooled and solidified into colloid;
step four: taking out the mixture colloid, putting the mixture colloid into a tabletting machine for tabletting treatment to form a substrate, and then cutting the substrate into strips through cutting equipment;
step five: placing the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer into a stirrer for stirring, and taking out the mixed mucus after the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer are fully mixed;
step six: putting the mixed mucilage and the substrate into a coating machine, uniformly coating the mixed mucilage on two sides of the substrate by the coating machine, then adhering release films on two sides of the coated substrate, protecting the substrate, and finally rolling and storing the substrate;
step seven: when the adhesive tape is used, the release films on the two sides of the substrate are torn, and the substrate is placed at the connecting part for connection.
In a preferred embodiment, the weight ratio of the silicone rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder and the boron nitride to the fiber glass substrate in the first step is 10: 1: 2: 4.
In a preferred embodiment, the rotation speed of the stirrer in the second step is 100-120r/min, and the weight ratio of the toughening filler to the dispersant in the third step is 3: 1.
In a preferred embodiment, the temperature of the refrigerating chamber in the third step is 0-5 ℃, the thickness of the substrate in the fourth step is 1-2cm, and the ratio of the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer in the fifth step is 4: 2: 1.
In a preferred embodiment, the rotating speed of the stirrer in the fifth step is 80-100r/min, the thickness of the mixed mucus coating in the sixth step is 0.1-0.2cm, and the thickness of the release film in the sixth step is 0.2-0.4 cm.
The invention has the technical effects and advantages that:
the invention adopts the silicon rubber elastomer raw material, so that the adhesive tape has the self-dissolving capacity at room temperature, the toughened filler silicon dioxide is added into the raw material, the elongation of the silica tape is 300-500%, the inner part of the silica tape is added with a layer of additional fiber glass substrate and a layer of self-dissolving silicon rubber coating, the mechanical protection effect can be realized under the high temperature condition, after the adhesive tape is placed for a plurality of hours at the ambient temperature, the surfaces of the adhesive tapes can be adhered together under the action of small pressure, the adhesive tape has good elasticity and environmental tolerance, the sealing effect is good after the adhesive tapes are mutually fused, and the installation and the use are convenient.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a silica gel belt, which uses main materials comprising, by weight, 50 parts of a silicone rubber elastomer, 5 parts of a coupling agent, 5 parts of silicon carbide, 10 parts of aluminum powder, 5 parts of boron nitride, 30 parts of a fiber glass substrate, 1 part of an autolyzed silicone rubber coating, 5 parts of epoxy resin, 2 parts of an acrylate monomer, 5 parts of a toughening filler, 1 part of a dispersant and 15 parts of a release film.
The coupling agent comprises triisostearoyl isopropyl titanate, tetraoctyl titanate, tetraester titanate and titanium oxoacetate, and the mixing ratio of the triisostearoyl isopropyl titanate, the tetraester titanate and the titanium oxoacetate is 3: 1: 1.5: 2: 0.5.
The toughening filler is specifically silicon dioxide, the dispersant is polyethylene glycol and polyvinyl alcohol, and the ratio of the polyethylene glycol to the polyvinyl alcohol is 3: 1.
In a preferred embodiment, the method further comprises a preparation method of the silica gel strip;
the method specifically comprises the following operation steps:
the method comprises the following steps: preparing raw materials of a silicone rubber elastomer, a coupling agent, silicon carbide, aluminum powder, boron nitride and a fiber glass substrate, putting the silicone rubber elastomer and the fiber glass substrate into a heating container, continuously heating to melt the silicone rubber elastomer and the fiber glass substrate in the container, and then pouring the coupling agent, the silicon carbide, the aluminum powder and the boron nitride;
step two: pouring the melted liquid into a stirrer to be stirred for 2 hours, setting the temperature in the stirrer to be 50 ℃, and fully mixing the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder, the boron nitride and the fiber glass substrate;
step three: pouring the stirred solution out, respectively adding a proper amount of toughening filler and dispersant into the solution, stirring for 20min by manpower, and then putting the solution into a refrigerating chamber for 5h until the solution is cooled and solidified into colloid;
step four: taking out the mixture colloid, putting the mixture colloid into a tabletting machine for tabletting treatment to form a substrate, and then cutting the substrate into strips through cutting equipment;
step five: placing the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer into a stirrer for stirring, and taking out the mixed mucus after the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer are fully mixed;
step six: putting the mixed mucilage and the substrate into a coating machine, uniformly coating the mixed mucilage on two sides of the substrate by the coating machine, then adhering release films on two sides of the coated substrate, protecting the substrate, and finally rolling and storing the substrate;
step seven: when the adhesive tape is used, the release films on the two sides of the substrate are torn, and the substrate is placed at the connecting part for connection.
The weight ratio of the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder and the boron nitride to the fiber glass substrate in the step one is 10: 1: 2: 4.
The rotating speed of the stirrer in the second step is 100r/min, and the weight ratio of the toughening filler to the dispersing agent in the third step is 3: 1.
The temperature of the refrigerating chamber in the third step is 0 ℃, the thickness of the substrate in the fourth step is 1cm, and the ratio of the self-dissolving silicon rubber coating, the epoxy resin and the acrylate monomer in the fifth step is 4: 2: 1.
The rotating speed of the stirrer in the fifth step is 80r/min, the thickness of the mixed mucus in the sixth step is 0.1cm, and the thickness of the release film in the sixth step is 0.2 cm.
Example 2:
the invention provides a silica gel belt, which uses main materials comprising, by weight, 80 parts of a silicone rubber elastomer, 8 parts of a coupling agent, 8 parts of silicon carbide, 12 parts of aluminum powder, 10 parts of boron nitride, 40 parts of a fiber glass substrate, 3 parts of an autolyzed silicone rubber coating, 10 parts of epoxy resin, 5 parts of an acrylate monomer, 8 parts of a toughening filler, 3 parts of a dispersant and 20 parts of a release film.
The coupling agent comprises triisostearoyl isopropyl titanate, tetraoctyl titanate, tetraester titanate and titanium oxoacetate, and the mixing ratio of the triisostearoyl isopropyl titanate, the tetraester titanate and the titanium oxoacetate is 3: 1: 1.5: 2: 0.5.
The toughening filler is specifically silicon dioxide, the dispersant is polyethylene glycol and polyvinyl alcohol, and the ratio of the polyethylene glycol to the polyvinyl alcohol is 3: 1.
In a preferred embodiment, the method further comprises a preparation method of the silica gel strip;
the method specifically comprises the following operation steps:
the method comprises the following steps: preparing raw materials of a silicone rubber elastomer, a coupling agent, silicon carbide, aluminum powder, boron nitride and a fiber glass substrate, putting the silicone rubber elastomer and the fiber glass substrate into a heating container, continuously heating to melt the silicone rubber elastomer and the fiber glass substrate in the container, and then pouring the coupling agent, the silicon carbide, the aluminum powder and the boron nitride;
step two: pouring the melted liquid into a stirrer to be stirred for 2 hours, setting the temperature in the stirrer to be 50 ℃, and fully mixing the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder, the boron nitride and the fiber glass substrate;
step three: pouring the stirred solution out, respectively adding a proper amount of toughening filler and dispersant into the solution, stirring for 30min by manpower, and then putting the solution into a refrigerating chamber for 5h until the solution is cooled and solidified into colloid;
step four: taking out the mixture colloid, putting the mixture colloid into a tabletting machine for tabletting treatment to form a substrate, and then cutting the substrate into strips through cutting equipment;
step five: placing the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer into a stirrer for stirring, and taking out the mixed mucus after the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer are fully mixed;
step six: putting the mixed mucilage and the substrate into a coating machine, uniformly coating the mixed mucilage on two sides of the substrate by the coating machine, then adhering release films on two sides of the coated substrate, protecting the substrate, and finally rolling and storing the substrate;
step seven: when the adhesive tape is used, the release films on the two sides of the substrate are torn, and the substrate is placed at the connecting part for connection.
The weight ratio of the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder and the boron nitride to the fiber glass substrate in the step one is 10: 1: 2: 4.
The rotating speed of the stirrer in the second step is 110r/min, and the weight ratio of the toughening filler to the dispersing agent in the third step is 3: 1.
The temperature of the refrigerating chamber in the third step is 2 ℃, the thickness of the substrate in the fourth step is 2cm, and the ratio of the self-dissolving silicon rubber coating to the epoxy resin to the acrylate monomer in the fifth step is 4: 2: 1.
The rotating speed of the stirrer in the fifth step is 90r/min, the thickness of the mixed mucus in the sixth step is 0.1cm, and the thickness of the release film in the sixth step is 0.2 cm.
Example 3:
the invention provides a silica gel belt, which uses main materials comprising, by weight, 100 parts of a silicone rubber elastomer, 10 parts of a coupling agent, 10 parts of silicon carbide, 20 parts of aluminum powder, 15 parts of boron nitride, 50 parts of a fiber glass substrate, 5 parts of an autolyzed silicone rubber coating, 20 parts of epoxy resin, 10 parts of an acrylate monomer, 10 parts of a toughening filler, 5 parts of a dispersant and 30 parts of a release film.
The coupling agent comprises triisostearoyl isopropyl titanate, tetraoctyl titanate, tetraester titanate and titanium oxoacetate, and the mixing ratio of the triisostearoyl isopropyl titanate, the tetraester titanate and the titanium oxoacetate is 3: 1: 1.5: 2: 0.5.
The toughening filler is specifically silicon dioxide, the dispersant is polyethylene glycol and polyvinyl alcohol, and the ratio of the polyethylene glycol to the polyvinyl alcohol is 3: 1.
In a preferred embodiment, the method further comprises a preparation method of the silica gel strip;
the method specifically comprises the following operation steps:
the method comprises the following steps: preparing raw materials of a silicone rubber elastomer, a coupling agent, silicon carbide, aluminum powder, boron nitride and a fiber glass substrate, putting the silicone rubber elastomer and the fiber glass substrate into a heating container, continuously heating to melt the silicone rubber elastomer and the fiber glass substrate in the container, and then pouring the coupling agent, the silicon carbide, the aluminum powder and the boron nitride;
step two: pouring the melted liquid into a stirrer to be stirred for 2 hours, setting the temperature in the stirrer to be 50 ℃, and fully mixing the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder, the boron nitride and the fiber glass substrate;
step three: pouring the stirred solution out, respectively adding a proper amount of toughening filler and dispersant into the solution, stirring for 40min by manpower, and then putting the solution into a refrigerating chamber for 5h until the solution is cooled and solidified into colloid;
step four: taking out the mixture colloid, putting the mixture colloid into a tabletting machine for tabletting treatment to form a substrate, and then cutting the substrate into strips through cutting equipment;
step five: placing the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer into a stirrer for stirring, and taking out the mixed mucus after the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer are fully mixed;
step six: putting the mixed mucilage and the substrate into a coating machine, uniformly coating the mixed mucilage on two sides of the substrate by the coating machine, then adhering release films on two sides of the coated substrate, protecting the substrate, and finally rolling and storing the substrate;
step seven: when the adhesive tape is used, the release films on the two sides of the substrate are torn, and the substrate is placed at the connecting part for connection.
The weight ratio of the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder and the boron nitride to the fiber glass substrate in the step one is 10: 1: 2: 4.
The rotating speed of the stirrer in the second step is 120r/min, and the weight ratio of the toughening filler to the dispersing agent in the third step is 3: 1.
The temperature of the refrigerating chamber in the third step is 5 ℃, the thickness of the substrate in the fourth step is 2cm, and the ratio of the self-dissolving silicon rubber coating to the epoxy resin to the acrylate monomer in the fifth step is 4: 2: 1.
The rotating speed of the stirrer in the fifth step is 80r/min, the thickness of the mixed mucus in the sixth step is 0.1cm, and the thickness of the release film in the sixth step is 0.2 cm.
Example 4:
the silica gel tape finished product samples prepared in the above examples 1 to 3 were respectively numbered digitally, and various properties of the samples were tested to obtain the following data:
as can be seen from the table above, the raw material matching proportion is moderate in the embodiment 3, the toughness of the silica gel band is strong, the silica gel band can be stretched to five times of the length of the silica gel band, and the silica gel band has strong high temperature resistance and pressure resistance, can be suitable for different severe environments, and prolongs the service life of concrete.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A silica gel area which characterized in that: the used main materials comprise, by weight, 50-100 parts of a silicone rubber elastomer, 5-10 parts of a coupling agent, 5-10 parts of silicon carbide, 10-20 parts of aluminum powder, 5-15 parts of boron nitride, 30-50 parts of a fiber glass substrate, 1-5 parts of an autolyzed silicone rubber coating, 5-20 parts of epoxy resin, 2-10 parts of an acrylate monomer, 5-10 parts of a toughening filler, 1-5 parts of a dispersing agent and 15-30 parts of a release film.
2. The silicone strip according to claim 1, wherein: the used main materials comprise, by weight, 60-90 parts of a silicone rubber elastomer, 6-9 parts of a coupling agent, 6-9 parts of silicon carbide, 12-18 parts of aluminum powder, 8-12 parts of boron nitride, 35-45 parts of a fiber glass substrate, 1-5 parts of an autolyzed silicone rubber coating, 10-15 parts of epoxy resin, 5-8 parts of an acrylate monomer, 6-8 parts of a toughening filler, 2-4 parts of a dispersing agent and 20-25 parts of a release film.
3. The silicone strip according to claim 1, wherein: the coupling agent comprises triisostearoyl isopropyl titanate, tetraoctyl titanate, tetraester titanate and titanium oxoacetate, and the mixing ratio of the triisostearoyl isopropyl titanate, the tetraester titanate and the titanium oxoacetate is 3: 1: 1.5: 2: 0.5.
4. The silicone strip according to claim 1, wherein: the toughening filler is specifically silicon dioxide, the dispersant is polyethylene glycol and polyvinyl alcohol, and the ratio of the polyethylene glycol to the polyvinyl alcohol is 3: 1.
5. A silicone strip according to any one of claims 1 to 4, characterised in that: also comprises a preparation method of the silica gel belt;
the method specifically comprises the following operation steps:
the method comprises the following steps: preparing raw materials of a silicone rubber elastomer, a coupling agent, silicon carbide, aluminum powder, boron nitride and a fiber glass substrate, putting the silicone rubber elastomer and the fiber glass substrate into a heating container, continuously heating to melt the silicone rubber elastomer and the fiber glass substrate in the container, and then pouring the coupling agent, the silicon carbide, the aluminum powder and the boron nitride;
step two: pouring the melted liquid into a stirrer to be stirred for 1-2h, setting the temperature in the stirrer to be 50-60 ℃, and fully mixing the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder, the boron nitride and the fiber glass substrate;
step three: pouring the stirred solution out, respectively adding a proper amount of toughening filler and dispersant into the solution, stirring for 20-40min by manpower, and then putting the solution into a refrigerating chamber for 5-8h until the solution is cooled and solidified into colloid;
step four: taking out the mixture colloid, putting the mixture colloid into a tabletting machine for tabletting treatment to form a substrate, and then cutting the substrate into strips through cutting equipment;
step five: placing the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer into a stirrer for stirring, and taking out the mixed mucus after the self-dissolving silicone rubber coating, the epoxy resin and the acrylate monomer are fully mixed;
step six: putting the mixed mucilage and the substrate into a coating machine, uniformly coating the mixed mucilage on two sides of the substrate by the coating machine, then adhering release films on two sides of the coated substrate, protecting the substrate, and finally rolling and storing the substrate;
step seven: when the adhesive tape is used, the release films on the two sides of the substrate are torn, and the substrate is placed at the connecting part for connection.
6. The preparation method of the silica gel strip according to claim 5, characterized in that: the weight ratio of the silicon rubber elastomer, the coupling agent, the silicon carbide, the aluminum powder and the boron nitride to the fiber glass substrate in the step one is 10: 1: 2: 4.
7. The preparation method of the silica gel strip according to claim 5, characterized in that: the rotating speed of the stirrer in the second step is 100-120r/min, and the weight ratio of the toughening filler to the dispersant in the third step is 3: 1.
8. The preparation method of the silica gel strip according to claim 5, characterized in that: the temperature of the refrigerating chamber in the third step is 0-5 ℃, the thickness of the substrate in the fourth step is 1-2cm, and the ratio of the self-dissolving silicon rubber coating, the epoxy resin and the acrylate monomer in the fifth step is 4: 2: 1.
9. The preparation method of the silica gel strip according to claim 5, characterized in that: the rotating speed of the stirrer in the fifth step is 80-100r/min, the thickness of the mixed mucus coated in the sixth step is 0.1-0.2cm, and the thickness of the release film in the sixth step is 0.2-0.4 cm.
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| CN201911288326.8A CN111057483A (en) | 2019-12-09 | 2019-12-09 | Silica gel belt |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568402A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Heat-conductive silica gel sheet with glass fiber and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568402A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Heat-conductive silica gel sheet with glass fiber and preparation method thereof |
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