CN114716933A - High-temperature-resistant adhesive tape and preparation method thereof - Google Patents

High-temperature-resistant adhesive tape and preparation method thereof Download PDF

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Publication number
CN114716933A
CN114716933A CN202210442775.9A CN202210442775A CN114716933A CN 114716933 A CN114716933 A CN 114716933A CN 202210442775 A CN202210442775 A CN 202210442775A CN 114716933 A CN114716933 A CN 114716933A
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silica gel
gel powder
adhesive tape
parts
modified
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张文
蒋顺江
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Shenzhen Jintian Electron Co ltd
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Shenzhen Jintian Electron Co ltd
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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
    • C09J7/20—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
    • C09J7/255—Polyesters
    • 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
    • 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
    • C09J11/08—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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/24—Homopolymers or copolymers of amides or imides
    • C09J133/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • 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
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/327—Aluminium phosphate
    • 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
    • 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
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils
    • 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
    • C09J2301/10—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
    • C09J2301/122—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 only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The invention discloses a high-temperature-resistant adhesive tape and a preparation method thereof, wherein the high-temperature-resistant adhesive tape comprises a substrate layer and an adhesive layer, wherein the adhesive layer is arranged on the substrate layer and is prepared from the following raw materials in parts by weight: butyl acrylate: 20-30 parts of a solvent; acrylic acid: 45-65 parts of a binder; methacrylamide: 15-25 parts; modified polytetrafluoroethylene fiber: 2-10 parts; n-methylpyrrolidone: 1-5 parts; sodium hexametaphosphate: 1-3 parts; initiator: 1-3 parts; silane coupling agent: 1-2 parts; the modified polytetrafluoroethylene fiber is prepared by modifying polytetrafluoroethylene fiber, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol; the mass ratio of the polytetrafluoroethylene fibers to the aluminum dihydrogen phosphate to the silica gel powder to the polyvinyl alcohol is (6-8): (5-7): (2-4): (1-2). The adhesive tape has the effect of improving the high-temperature resistance and the viscosity of the adhesive tape.

Description

High-temperature-resistant adhesive tape and preparation method thereof
Technical Field
The application relates to the field of adhesive tapes, in particular to a high-temperature-resistant adhesive tape and a preparation method thereof.
Background
With the rapid improvement of social economy and living standard of people, the adhesive tape is completely integrated into various industries and daily life of people.
At present, an adhesive tape is composed of a base material and an adhesive, two or more unconnected objects are connected together through adhesion, the base material is mostly a single-layer traditional material, the adhesive is mostly an acrylate adhesive, although the adhesive has excellent adhesion performance, the heat resistance is general, and the adhesion performance of the adhesive is poor at high temperature.
Disclosure of Invention
In order to improve the high-temperature-resistant constant viscosity of the adhesive tape, the application provides a high-temperature-resistant adhesive tape and a preparation method thereof.
In a first aspect, the application provides a high temperature resistant adhesive tape which adopts the following technical scheme:
the utility model provides a high temperature resistant adhesive tape, includes substrate layer and viscose layer, the viscose layer sets up on the substrate layer, the viscose layer is made by the raw materials that include following parts by weight:
butyl acrylate: 20-30 parts of a solvent;
acrylic acid: 45-65 parts of a binder;
methacrylamide: 15-25 parts;
modified polytetrafluoroethylene fiber: 2-10 parts;
n-methylpyrrolidone: 1-5 parts;
sodium hexametaphosphate: 1-3 parts;
initiator: 1-3 parts;
silane coupling agent: 1-2 parts;
the modified polytetrafluoroethylene fiber is prepared by modifying polytetrafluoroethylene fiber, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol; the mass ratio of the polytetrafluoroethylene fibers, the aluminum dihydrogen phosphate, the silica gel powder and the polyvinyl alcohol is (6-8): (5-7): (2-4): (1-2).
According to the technical scheme, butyl acrylate, acrylic acid and methacrylamide are used as raw materials for preparing the high-temperature-resistant adhesive, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol are used for modifying polytetrafluoroethylene fibers in the process of preparing the adhesive layer, the silica gel powder is added to fill gaps among the polytetrafluoroethylene fibers, the aluminum dihydrogen phosphate is viscous liquid, the aluminum dihydrogen phosphate can be adhered to the polytetrafluoroethylene fibers, the polytetrafluoroethylene and the silica gel powder can be well adhered together, meanwhile, the high-temperature resistance of the adhesive layer is greatly increased, the adhesion force of the high-temperature-resistant adhesive tape is improved, the polyvinyl alcohol is used as an adhesive, and the polytetrafluoroethylene fibers and the silica gel powder are further adhered together; the modified polytetrafluoroethylene fiber is added, and the fluorine-silicon element is added in the components, so that the high-temperature resistance of the adhesive tape is effectively improved; the N-methyl pyrrolidone is a good solvent, so that the modified polytetrafluoroethylene fiber is better mixed with butyl acrylate, acrylic acid and methacrylamide, and the high-temperature resistance of the modified polytetrafluoroethylene fiber is fully exerted; sodium hexametaphosphate is used as a dispersing agent, ions are formed in the components and adsorbed on the surfaces of the components, and various raw materials are promoted to be dispersed in the components; meanwhile, the modified polytetrafluoroethylene fibers, the N-methylpyrrolidone and the sodium hexametaphosphate are matched together, so that the high-temperature resistant permanent adhesion force of the adhesive layer can be improved, and the stripping force of the adhesive tape can also be improved; the silane coupling agent can effectively improve the crosslinking density, increase the cohesive force and improve the surface performance of the adhesive layer; the addition of the initiator promotes better bonding of butyl acrylate, acrylic acid and methacrylamide.
Preferably, the weight part ratio of the aluminum dihydrogen phosphate to the silica gel powder and the polyvinyl alcohol is (5-5.6): (4.2-4.8): 1.
by adopting the technical scheme, in the process of preparing the modified polytetrafluoroethylene fiber, when the aluminum dihydrogen phosphate, the silica gel powder and the polyvinyl alcohol are in a specific proportion by weight, the aluminum dihydrogen phosphate, the silica gel powder and the polyvinyl alcohol are matched together to act on the polytetrafluoroethylene fiber, so that the prepared modified polytetrafluoroethylene fiber has better high-temperature resistance, and the stripping force of the adhesive tape under the high-temperature condition is improved.
Preferably, the silica gel powder is modified silica gel powder, and the modified silica gel powder is prepared by modifying silica gel powder, glycerol, nano titanium dioxide and ethyl acetate; the mass ratio of the silica gel powder to the glycerol to the nano titanium dioxide to the ethyl acetate is (4-6): (1-2): (2-4): (1-3).
Through adopting above-mentioned technical scheme, this application uses glycerine, nanometer titanium dioxide and ethyl acetate to modify silica gel powder, adds nanometer titanium dioxide on silica gel powder, and nanometer titanium dioxide has good heat stability, and ethyl acetate and glycerine all have excellent solubility, promote the mixture of nanometer titanium dioxide and silica gel powder, and then make modified polytetrafluoroethylene fibre have good high temperature resistant and hold the viscous force.
Preferably, the particle size range of the modified silica gel powder is 30-100 meshes.
Through adopting above-mentioned technical scheme, this application has injectd the particle diameter scope of modified silica gel powder, makes the in-process of preparing modified polytetrafluoroethylene fibre, and modified silica gel powder fills the space between the polytetrafluoroethylene fibre more easily, and then improves modified polytetrafluoroethylene fibre's high temperature resistant and holds the viscous force.
Preferably, the weight part ratio of the modified polytetrafluoroethylene fiber, the N-methyl pyrrolidone and the sodium hexametaphosphate is (3.2-3.8): (1.6-2): 1.
by adopting the technical scheme, when the modified polytetrafluoroethylene fiber, the N-methyl pyrrolidone and the sodium hexametaphosphate are in a specific ratio, the sodium hexametaphosphate promotes the modified polytetrafluoroethylene fiber and the N-methyl pyrrolidone to be attached and dispersed on the high-temperature resistant adhesive, and the adhesive layer not only can obtain better high-temperature resistant adhesive force, but also can obtain better tensile strength.
Preferably, the initiator comprises one or more of ammonium persulfate, benzoyl peroxide and cyclohexanone peroxide. More preferably, the initiator is ammonium persulfate.
By adopting the technical scheme, the initiator is added into the components, so that the polymerization of butyl acrylate, acrylic acid and methacrylamide can be promoted, and the sodium persulfate can be used for accelerating the polymerization of monomers in the components.
Preferably, the length of the modified polytetrafluoroethylene fiber is 10-20 μm.
Through adopting above-mentioned technical scheme, control modified polytetrafluoroethylene fibre's length scope makes modified polytetrafluoroethylene fibre can distribute evenly in the viscose layer, the high temperature resistant holding power of improvement viscose layer that can be better when the viscose layer bonds.
In a second aspect, the present application provides a method for preparing a high temperature resistant adhesive tape, which adopts the following technical scheme:
a preparation method of a high-temperature-resistant adhesive tape comprises the following steps:
s1, heating and stirring butyl acrylate, acrylic acid and methacrylamide to obtain a premix;
s2, heating and mixing the modified polytetrafluoroethylene fibers, N-methyl pyrrolidone, sodium hexametaphosphate, an initiator and a silane coupling agent to obtain a mixture;
and S3, putting the premix into the mixture, heating and mixing uniformly, and cooling to room temperature to obtain the high-temperature-resistant glue.
By adopting the technical scheme, the raw materials of the butyl acrylate, the acrylic acid and the methacrylamide adhesive layer are mixed and stirred; and mixing the modified polytetrafluoroethylene fiber, the N-methyl pyrrolidone, the sodium hexametaphosphate and other additives together, and finally mixing the mixture with the raw materials of the adhesive layer to obtain the high-temperature-resistant adhesive of the adhesive layer.
Preferably, the preparation method of the modified polytetrafluoroethylene fiber comprises the following steps:
adding the polytetrafluoroethylene fiber into the aluminum dihydrogen phosphate solution, mixing and stirring, adding the modified silica gel powder while stirring, adding the polyvinyl alcohol, stirring uniformly, filtering and drying to obtain the modified polytetrafluoroethylene fiber.
By adopting the technical scheme, the polytetrafluoroethylene fiber is modified, so that the prepared high-temperature-resistant adhesive has high-temperature-resistant constant-adhesion force, and the stripping force of the high-temperature-resistant adhesive tape is also improved.
Preferably, the silica gel powder is modified silica gel powder, and the preparation method of the modified silica gel powder comprises the following steps:
mixing silica gel powder and glycerol, standing, performing ultrasonic treatment, filtering, drying, adding nano titanium dioxide and ethyl acetate, continuously stirring, filtering, and drying to obtain the modified silica gel powder.
Through adopting above-mentioned technical scheme, this application is modified to silica gel powder, and modified silica gel powder can improve the high temperature resistant holding power of modified polytetrafluoroethylene fibre to high temperature resistant glue when preparing modified polytetrafluoroethylene fibre.
In summary, the present application has the following technical effects:
1. in the process of preparing the adhesive layer, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol are used for modifying the polytetrafluoroethylene fibers, the silica gel powder is added to fill gaps among the polytetrafluoroethylene fibers, the aluminum dihydrogen phosphate is viscous liquid, the aluminum dihydrogen phosphate can be adhered to the polytetrafluoroethylene fibers, the polytetrafluoroethylene and the silica gel powder can be better adhered together, meanwhile, the high temperature resistance of the adhesive layer is greatly increased, the adhesion force of a high-temperature-resistant adhesive tape is improved, the polyvinyl alcohol is used as an adhesive, and the polytetrafluoroethylene fibers and the silica gel powder are further adhered together; the modified polytetrafluoroethylene fiber is added, and the fluorine-silicon element is added in the components, so that the high-temperature resistance of the adhesive tape is effectively improved; sodium hexametaphosphate is used as a dispersing agent, ions are formed in the components and adsorbed on the surfaces of the components, and various raw materials are promoted to be dispersed in the components; the modified polytetrafluoroethylene fiber, the N-methyl pyrrolidone and the sodium hexametaphosphate are matched together, so that the high-temperature resistant permanent adhesive force of the adhesive layer can be improved, and the stripping force of the adhesive tape can be improved;
2. according to the preparation method, the silica gel powder is modified by using glycerol, nano titanium dioxide and ethyl acetate, the nano titanium dioxide is added to the silica gel powder, the nano titanium dioxide has good thermal stability, the ethyl acetate and the glycerol both have excellent solubility, the mixing of the nano titanium dioxide and the silica gel powder is promoted, and the modified polytetrafluoroethylene fiber has good high-temperature-resistant permanent adhesion; 3. when the modified polytetrafluoroethylene fiber, the N-methylpyrrolidone and the sodium hexametaphosphate are in a specific ratio, the sodium hexametaphosphate promotes the modified polytetrafluoroethylene fiber and the N-methylpyrrolidone to be attached and dispersed on the high-temperature-resistant adhesive, and the adhesive layer can obtain better high-temperature-resistant permanent adhesive force and better tensile strength.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
The following preparation examples and examples are all commercially available as starting materials, and some of the starting materials are as shown in table 1:
TABLE 1
Figure BDA0003615272830000041
Preparation examples
Preparation example 1
A preparation method of modified silica gel powder comprises the following steps:
mixing 20kg of silica gel powder and 5kg of glycerol at the temperature of 30 ℃ and the rotation speed of 30rad/min, stirring for 30min, standing for 2h, performing ultrasonic treatment at the frequency of 30kHz for 30min, filtering, drying at the temperature of 70 ℃ for 1h, adding 10kg of nano titanium dioxide and 5kg of ethyl acetate, stirring for 30min at the temperature of 45 ℃ and the rotation speed of 60rad/min, filtering, drying at the temperature of 80 ℃ for 30min, and grinding to 30-100 meshes to obtain the modified silica gel powder.
Preparation example 2
A preparation method of modified silica gel powder comprises the following steps:
mixing 30kg of silica gel powder and 10kg of glycerol at the temperature of 30 ℃ and the rotation speed of 30rad/min, stirring for 30min, standing for 2h, performing ultrasonic treatment at the frequency of 30kHz for 30min, filtering, drying at the temperature of 70 ℃ for 1h, adding 20kg of nano titanium dioxide and 15kg of ethyl acetate, stirring for 30min at the temperature of 45 ℃ and the rotation speed of 60rad/min, filtering, drying at the temperature of 80 ℃ for 30min, and grinding to 30-100 meshes to obtain the modified silica gel powder.
Preparation example 3
A preparation method of modified silica gel powder comprises the following steps:
mixing 25kg of silica gel powder and 7.5kg of glycerol at 30 ℃ and 30rad/min of rotation speed, stirring for 30min, standing for 2h, carrying out ultrasonic treatment for 30min at 30kHz, filtering, drying for 1h at 70 ℃, adding 15kg of nano titanium dioxide and 10kg of ethyl acetate, stirring for 30min at 45 ℃ and 60rad/min of rotation speed, filtering, drying for 30min at 80 ℃, and grinding to 30-100 meshes to obtain the modified silica gel powder.
Preparation example 4
A preparation method of modified polytetrafluoroethylene fibers comprises the following steps:
putting 30kg of polytetrafluoroethylene fiber and 25kg of aluminum dihydrogen phosphate solution into a stirring kettle, stirring for 1h at the temperature of 30 ℃ and the rotating speed of 40rad/min, adding 10kg of silica gel powder while stirring, adding 5kg of polyvinyl alcohol, stirring for 30min at the temperature of 40 ℃ and the rotating speed of 50rad/min, filtering, and drying for 3h at the temperature of 90 ℃ to obtain the modified polytetrafluoroethylene fiber.
Preparation example 5
A preparation method of modified polytetrafluoroethylene fibers comprises the following steps:
30kg of polytetrafluoroethylene fiber and 25kg of aluminum dihydrogen phosphate solution are put into a stirring kettle, stirred for 1h at the temperature of 30 ℃ and the rotating speed of 40rad/min, 10kg of silica gel powder prepared in the preparation example 1 is added while stirring, 5kg of polyvinyl alcohol is added, stirred for 30min at the temperature of 40 ℃ and the rotating speed of 50rad/min, filtered and dried for 3h at the temperature of 90 ℃ to obtain the modified polytetrafluoroethylene fiber.
Preparation example 6
A preparation method of modified polytetrafluoroethylene fibers comprises the following steps:
40kg of polytetrafluoroethylene fiber and 35kg of aluminum dihydrogen phosphate solution are put into a stirring kettle, stirred for 1h at the temperature of 30 ℃ and the rotating speed of 40rad/min, 20kg of silica gel powder prepared in preparation example 2 is added while stirring, 10kg of polyvinyl alcohol is added, stirred for 30min at the temperature of 40 ℃ and the rotating speed of 50rad/min, and dried for 3h at the temperature of 90 ℃ after filtration, so that the modified polytetrafluoroethylene fiber is obtained.
Preparation example 7
A preparation method of modified polytetrafluoroethylene fibers comprises the following steps:
35kg of polytetrafluoroethylene fiber and 30kg of aluminum dihydrogen phosphate solution were put into a stirring kettle, stirred at 30 ℃ and 40rad/min for 1 hour, 15kg of the silica gel powder obtained in preparation example 3 was added while stirring, 7.5kg of polyvinyl alcohol was added, stirred at 40 ℃ and 50rad/min for 30 minutes, filtered and dried at 90 ℃ for 3 hours to obtain a modified polytetrafluoroethylene fiber.
Preparation example 8
A method for producing a modified polytetrafluoroethylene fiber, which is different from preparation example 7 in that the mass of aluminum dihydrogen phosphate is 30kg, the mass of modified silica gel powder is 25.2kg, and the mass of polyvinyl alcohol is 6 kg.
Preparation example 9
A method for producing a modified polytetrafluoroethylene fiber, which is different from production example 7 in that the mass of aluminum dihydrogen phosphate is 33.6kg, the mass of modified silica gel powder is 28.8kg, and the mass of polyvinyl alcohol is 6 kg.
Preparation example 10
A preparation method of modified polytetrafluoroethylene fibers is different from preparation example 7 in that the mass of aluminum dihydrogen phosphate is 32kg, the mass of modified silica gel powder is 27kg, and the mass of polyvinyl alcohol is 6 kg.
Example 1
The application discloses high temperature resistant adhesive tape, sticky tape include substrate layer and viscose layer, and the substrate layer is polyethylene terephthalate (PET) layer, substrate layer and viscose layer laminating, and the viscose layer adopts following method preparation:
s1, heating and stirring 20kg of butyl acrylate, 45kg of acrylic acid and 15kg of methacrylamide for 10min at the temperature of 70 ℃ and the rotating speed of 60rad/min to obtain a premix;
s2, heating and stirring 2kg of the polytetrafluoroethylene fiber prepared in preparation example 4, 1kg of N-methyl pyrrolidone, 1kg of sodium hexametaphosphate, 1kg of initiator and 1kg of silane coupling agent for 30min at the temperature of 90 ℃ and the rotating speed of 70rad/min,
obtaining a mixture; wherein the length of the polytetrafluoroethylene fiber is 10 μm;
s3, putting the premix into the mixture, heating and stirring for 20min under the conditions that the internal temperature of the mixture is 90 ℃ and the rotating speed is 70rad/min, and cooling to room temperature to obtain the high-temperature-resistant adhesive tape.
Example 2 to example 3
Examples 2 to 3 are different from example 1 in the difference of the type and amount of the materials of the high temperature resistant adhesive tape, and are specifically shown in table 2:
TABLE 2
Figure BDA0003615272830000071
Example 4
A high temperature resistant adhesive tape, which is different from example 3 in that the modified polytetrafluoroethylene fiber prepared in preparation example 5 was used.
Example 5
A high-temperature resistant adhesive tape, which is different from example 3 in that the modified polytetrafluoroethylene fiber prepared in preparation example 6 was used.
Example 6
A high-temperature resistant adhesive tape, which is different from example 3 in that the modified polytetrafluoroethylene fiber prepared in preparation example 7 was used.
Example 7
A high temperature resistant tape, which is different from example 6 in that the modified polytetrafluoroethylene fiber prepared in preparation example 8 was used.
Example 8
A high-temperature resistant adhesive tape, which is different from example 6 in that the modified polytetrafluoroethylene fiber prepared in preparation example 9 was used.
Example 9
A high-temperature resistant adhesive tape, which is different from example 6 in that the modified polytetrafluoroethylene fiber prepared in preparation example 10 was used.
Example 10
A high temperature resistant adhesive tape, which is different from that of example 9 in that the amount of modified polytetrafluoroethylene fibers added was 6.4kg, the amount of N-methylpyrrolidone added was 3.2kg, and the amount of sodium hexametaphosphate added was 2 kg.
Example 11
A high-temperature-resistant adhesive tape, which is different from that in example 9, was produced in such a manner that the amount of modified polytetrafluoroethylene fibers added was 7.6kg, the amount of N-methylpyrrolidone added was 4kg, and the amount of sodium hexametaphosphate added was 2 kg.
Example 12
A high temperature resistant adhesive tape, which is different from that of example 9 in that the amount of modified polytetrafluoroethylene fibers added was 7.2kg, the amount of N-methylpyrrolidone added was 3.6kg, and the amount of sodium hexametaphosphate added was 2 kg.
Example 13
A high temperature resistant tape, which is different from example 12 in that the length of the modified polytetrafluoroethylene is 20 μm.
Example 14
A high temperature resistant adhesive tape, which is different from example 12 in that the length of the modified polytetrafluoroethylene is 40 μm.
Comparative example 1
The difference between the high-temperature resistant adhesive tape and the high-temperature resistant adhesive tape in the embodiment 1 is that modified polytetrafluoroethylene fibers are equivalently replaced by polytetrafluoroethylene fibers.
Comparative example 2
A high temperature resistant adhesive tape is different from the adhesive tape in example 1 in that no modified polytetrafluoroethylene fiber is added.
Comparative example 3
A high temperature resistant adhesive tape, which is different from the adhesive tape of example 1 in that N-methylpyrrolidone is not added.
Comparative example 4
A high temperature resistant tape, different from example 1, was prepared without adding sodium hexametaphosphate.
Comparative example 5
A high temperature resistant adhesive tape, which is different from the adhesive tape of example 1 in that N-methylpyrrolidone and sodium hexametaphosphate are not added.
Performance test
For the high temperature resistant adhesive tapes provided in examples 1 to 14 and comparative examples 1 to 5 of the present application, the following performance tests were performed:
and (3) high-temperature permanent adhesion testing: the permanent tackiness of the adhesive tapes obtained in examples 1 to 14 and comparative examples 1 to 5 was determined by measuring the time for which the adhesive tapes were peeled off at 160 ℃ by using a permanent tackiness measuring instrument in the method described in GB/T4851-.
Tape peel force test: the tape high-temperature peel strength tester was used to perform the peel strength test, setting the test temperature at 25 ℃ and 160 ℃ respectively, to test the normal peel strength and the high-temperature peel strength of the high-temperature resistant tapes prepared in examples 1 to 14 and comparative examples 1 to 5.
Tensile strength: the maximum tensile force of the adhesive tapes obtained in examples 1 to 14 and comparative examples 1 to 5 was measured by cutting a sample having a length of 200mm and a width of 25mm, and stretching the sample at a rate of 300mm/min to break according to GB/T7753-1987 "method for testing tensile properties of pressure-sensitive adhesive tapes".
Specific results are shown in table 3:
TABLE 3
Figure BDA0003615272830000091
Figure BDA0003615272830000101
According to the comparison of the data of examples 1-3 and comparative examples 1-5 in table 3, the modified polytetrafluoroethylene fiber, N-methyl pyrrolidone and sodium hexametaphosphate added to the components of the adhesive layer can be cooperated together to improve the high temperature resistant permanent adhesion of the adhesive layer and the peeling force of the adhesive tape; this application is through modifying polytetrafluoroethylene fiber, fills the space between the polytetrafluoroethylene fiber with silica gel powder, and silica gel powder and polytetrafluoroethylene fiber closely laminate through aluminium dihydrogen phosphate and polyvinyl alcohol, and polytetrafluoroethylene fiber through the modification contains fluorine silicon element, can effectively improve holding the adhesion of high temperature resistant adhesive tape.
According to the comparison of the data of the embodiment 3 and the embodiments 4-6, the common silica gel powder is adopted in the embodiment 3, the silica gel powder is modified in the embodiments 4-6, the nano titanium dioxide is attached to the silica gel powder, and the prepared modified silica gel powder is used for modifying the polytetrafluoroethylene fiber, so that the modified polytetrafluoroethylene fiber has good high-temperature resistance, and the adhesive holding force of the adhesive tape is further improved.
According to the comparison of the data of the example 6 and the examples 7 to 9, when the modified polytetrafluoroethylene fiber is prepared, the weight parts of aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol are (5-5.6): (4.2-4.8): 1, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol are matched together to act on the polytetrafluoroethylene fiber, so that the prepared modified polytetrafluoroethylene fiber has better high-temperature resistance, and the stripping force of the adhesive tape under the high-temperature condition is improved.
Based on the comparison of the data of examples 9 to 12 and comparative examples 3 to 5, when the modified polytetrafluoroethylene fiber, N-methylpyrrolidone and sodium hexametaphosphate were in the range of (3.2 to 3.8): (1.6-2): 1, the sodium hexametaphosphate promotes the modified polytetrafluoroethylene fiber to be attached to the N-methyl pyrrolidone and dispersed on the high-temperature-resistant adhesive, and the adhesive layer can obtain better high-temperature-resistant permanent adhesion and better tensile strength.
According to the comparison of the data in examples 12-14, the length of the modified polytetrafluoroethylene fiber is limited, so that the modified polytetrafluoroethylene fiber can be uniformly distributed in the adhesive layer, and the high temperature resistant adhesive force of the adhesive layer can be better improved when the adhesive layer is bonded.
The specific embodiments are merely illustrative of the present application and are not restrictive of the present application, and those skilled in the art can make modifications of the embodiments as required without any inventive contribution thereto after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.

Claims (10)

1. A high temperature resistant adhesive tape is characterized in that: including substrate layer and viscose layer, the viscose layer sets up on the substrate layer, the viscose layer is made by the raw materials including following parts by weight:
butyl acrylate: 20-30 parts of a solvent;
acrylic acid: 45-65 parts of a stabilizer;
methacrylamide: 15-25 parts;
modified polytetrafluoroethylene fiber: 2-10 parts;
n-methylpyrrolidone: 1-5 parts;
sodium hexametaphosphate: 1-3 parts;
initiator: 1-3 parts;
silane coupling agent: 1-2 parts;
the modified polytetrafluoroethylene fiber is prepared by modifying polytetrafluoroethylene fiber, aluminum dihydrogen phosphate, silica gel powder and polyvinyl alcohol; the mass ratio of the polytetrafluoroethylene fibers, the aluminum dihydrogen phosphate, the silica gel powder and the polyvinyl alcohol is (6-8): (5-7): (2-4): (1-2).
2. The high temperature resistant adhesive tape of claim 1, wherein: the weight ratio of the aluminum dihydrogen phosphate to the silica gel powder to the polyvinyl alcohol is (5-5.6): (4.2-4.8): 1.
3. the high temperature resistant adhesive tape of claim 1, wherein: the silica gel powder is modified silica gel powder, and the modified silica gel powder is prepared by modifying silica gel powder, glycerol, nano titanium dioxide and ethyl acetate; the mass ratio of the silica gel powder to the glycerol to the nano titanium dioxide to the ethyl acetate is (4-6): (1-2): (2-4): (1-3).
4. The high temperature resistant adhesive tape of claim 3, wherein: the particle size range of the modified silica gel powder is 30-100 meshes.
5. The high temperature resistant adhesive tape of claim 1, wherein: the weight parts of the modified polytetrafluoroethylene, the N-methylpyrrolidone and the sodium hexametaphosphate are (3.2-3.8): (1.6-2): 1.
6. the high temperature resistant adhesive tape of claim 1, wherein: the initiator comprises one or more of ammonium persulfate, benzoyl peroxide and cyclohexanone peroxide.
7. The high temperature resistant adhesive tape of claim 1, wherein: the length of the modified polytetrafluoroethylene fiber is 10-20 μm.
8. A preparation method of a high-temperature-resistant adhesive tape is characterized by comprising the following steps: a high temperature resistant adhesive tape for preparing any one of claims 1-7, comprising the steps of:
s1, heating and stirring butyl acrylate, acrylic acid and methacrylamide to obtain a premix;
s2, heating and mixing the modified polytetrafluoroethylene fibers, N-methyl pyrrolidone, sodium hexametaphosphate, an initiator and a silane coupling agent to obtain a mixture;
s3, putting the premix into the mixture, heating and mixing uniformly, and cooling to room temperature to obtain the high-temperature-resistant glue.
9. The method for preparing the high temperature resistant adhesive tape according to claim 8, wherein the method comprises the following steps: the preparation method of the modified polytetrafluoroethylene fiber comprises the following steps:
adding the polytetrafluoroethylene fiber into the aluminum dihydrogen phosphate solution, mixing and stirring, adding the silica gel powder while stirring, adding the polyvinyl alcohol, stirring uniformly, filtering and drying to obtain the modified polytetrafluoroethylene fiber.
10. The method for preparing the high temperature resistant adhesive tape according to claim 9, wherein the method comprises the following steps: the silica gel powder is modified silica gel powder, and the preparation method of the modified silica gel powder comprises the following steps:
mixing silica gel powder and glycerol, standing, performing ultrasonic treatment, filtering, drying, adding nano titanium dioxide and ethyl acetate, continuously stirring, filtering, drying, and grinding to obtain the modified silica gel powder.
CN202210442775.9A 2022-04-26 2022-04-26 High-temperature-resistant adhesive tape and preparation method thereof Pending CN114716933A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368867A (en) * 2022-09-03 2022-11-22 柏仁新材料(广州)股份有限公司 Environment-friendly UV adhesive, preparation method thereof and application thereof in label paper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101024758A (en) * 2006-02-17 2007-08-29 琳得科株式会社 Pressure sensitive adhesive for sticking an electromagnetic wave-shielding film and an optically functional film, and a display panel filter element containing same
CN113072893A (en) * 2021-03-24 2021-07-06 东莞市美鑫工业胶带有限公司 High-temperature-resistant adhesive tape and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101024758A (en) * 2006-02-17 2007-08-29 琳得科株式会社 Pressure sensitive adhesive for sticking an electromagnetic wave-shielding film and an optically functional film, and a display panel filter element containing same
CN113072893A (en) * 2021-03-24 2021-07-06 东莞市美鑫工业胶带有限公司 High-temperature-resistant adhesive tape and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
资源强制回收产业技术创新战略联盟 等: "《2017年中国动力电池回收处理产业现状与发展报告》", 科学技术文献出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368867A (en) * 2022-09-03 2022-11-22 柏仁新材料(广州)股份有限公司 Environment-friendly UV adhesive, preparation method thereof and application thereof in label paper

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