CN113861900A - High-strength flame-retardant adhesive tape and preparation method thereof - Google Patents

High-strength flame-retardant adhesive tape and preparation method thereof Download PDF

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Publication number
CN113861900A
CN113861900A CN202111299402.2A CN202111299402A CN113861900A CN 113861900 A CN113861900 A CN 113861900A CN 202111299402 A CN202111299402 A CN 202111299402A CN 113861900 A CN113861900 A CN 113861900A
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China
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parts
adhesive tape
flame retardant
flame
acrylate
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CN202111299402.2A
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Chinese (zh)
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孙孝辉
王唯
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Pinghu Banchun Adhesive Technology Co ltd
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Pinghu Banchun Adhesive Technology Co ltd
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Priority to CN202111299402.2A priority Critical patent/CN113861900A/en
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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
    • 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
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/062—Copolymers with monomers not covered by C09J133/06
    • C09J133/064—Copolymers with monomers not covered by C09J133/06 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K2003/322—Ammonium phosphate
    • C08K2003/323—Ammonium polyphosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention belongs to the technical field of industrial adhesive tapes, and provides a high-strength flame-retardant adhesive tape and a preparation method thereof. According to the high-strength flame-retardant adhesive tape, the peel strength of the high-strength flame-retardant adhesive tape is improved by combining acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate and methyl acrylate; meanwhile, the expanded graphite serving as a flame retardant can be rapidly expanded at high temperature, so that the flame retardant effect is achieved; moreover, the expanded graphite can promote the carbon formation and improve the flame retardant effect; the flame retardant ammonium polyphosphate, the melamine cyanurate and the aluminum hydroxide are used together, so that the flame retardance of the adhesive tape is improved.

Description

High-strength flame-retardant adhesive tape and preparation method thereof
Technical Field
The invention relates to the technical field of industrial adhesive tapes, in particular to a high-strength flame-retardant adhesive tape and a preparation method thereof.
Background
The industrial adhesive tape is widely applied to various fields such as engineering machinery, electronic products, new energy batteries and the like according to specific functions. Industrial tapes are mainly classified into heat conductive tapes, electric conductive tapes, and flame retardant tapes according to their functions. The flame-retardant adhesive tape is prepared from a resin matrix and a flame retardant additive. Such as: chinese patent CN 106281070 a discloses a flame retardant adhesive tape, which comprises the following components in parts by weight: 1-6 parts of flame retardant, 0.3-0.5 part of heat stabilizer, 3-10 parts of butyl rubber, 1-4 parts of polyethylene glycol, 0.4-0.6 part of tackifier, 3-7 parts of acrylate rubber, 3-5 parts of calcium carbonate, 6-10 parts of diatomite, 4-7 parts of platelet talc and 1-4 parts of titanium dioxide. Chinese patent publication No. CN 108034375A discloses an ultrathin flame retardant adhesive tape, which comprises a base material and an adhesive layer, wherein the adhesive layer is coated on the base material, and the adhesive layer comprises the following components in parts by weight: 52-62 parts of polyamide resin, 3-5 parts of polyethylene, 4-6 parts of epoxy resin, 6-12 parts of halogen-free flame retardant, 5-15 parts of polyvinyl chloride, 1-3 parts of dispersing agent, 2-4 parts of coupling agent and 0.5-1.2 parts of auxiliary agent. The tensile strength of the test tape was 28 MPa. However, the thickness of the flame retardant tape is only 0.02 to 0.03mm, and the peeling strength of the tape becomes weak due to the increase in the thickness of the flame retardant tape.
Disclosure of Invention
In view of the above, the present invention aims to provide a high-strength flame retardant adhesive tape and a preparation method thereof. The high-strength flame-retardant adhesive tape provided by the invention still has excellent peel strength under the condition of thicker thickness.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a high-strength flame-retardant adhesive tape which comprises the following components in parts by weight:
1-20 parts of acrylic acid, 40-90 parts of isooctyl acrylate, 40-90 parts of butyl acrylate, 10-30 parts of isobornyl acrylate, 5-35 parts of methyl acrylate, 1-20 parts of N, N-dimethylacrylamide and 0.1-3 parts of ultraviolet initiator;
the weight of the flame retardant is 20 to 400 percent of the total weight of acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide;
the flame retardant comprises ammonium polyphosphate, melamine cyanurate, aluminum hydroxide and expanded graphite.
Preferably, the flame retardant comprises the following components in parts by weight based on the parts by weight of acrylic acid: 5-330 parts of ammonium polyphosphate, 5-210 parts of melamine polyphosphate, 1-85 parts of melamine cyanurate, 5-220 parts of aluminum hydroxide and 5-230 parts of expanded graphite.
Preferably, the flame retardant further comprises pentaerythritol.
Preferably, the pentaerythritol is 1-53 parts by weight based on the parts by weight of acrylic acid.
Preferably, the flame retardant further comprises antimony trioxide and a bromine-containing flame retardant.
Preferably, the weight portion of the antimony trioxide is 1-30 parts and the weight portion of the bromine-containing flame retardant is 1-50 parts based on the weight portion of the acrylic acid.
Preferably, the bromine-containing flame retardant comprises hexabromocyclododecane and decabromodiphenyl ether; the mass ratio of hexabromocyclododecane to decabromodiphenyl ether in the bromine-containing flame retardant is 1: 1-1: 2.
Preferably, the particle size of the aluminum hydroxide is 3-25 μm; the particle size of the expanded graphite is 60-400 meshes.
Preferably, the uv initiator comprises one or more of benzophenone, BDK, and 184.
The invention also provides a preparation method of the high-strength flame-retardant adhesive tape, which comprises the following steps:
mixing acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate, N-dimethylacrylamide and an ultraviolet initiator, and performing prepolymerization under the irradiation of ultraviolet light to obtain a prepolymerization system;
and mixing the prepolymerization system and a flame retardant, and polymerizing under ultraviolet irradiation to obtain the high-strength flame-retardant adhesive tape.
The invention provides a high-strength flame-retardant adhesive tape which comprises the following components in parts by weight: 1-20 parts of acrylic acid, 40-90 parts of isooctyl acrylate, 40-90 parts of butyl acrylate, 10-30 parts of isobornyl acrylate, 5-35 parts of methyl acrylate, 1-20 parts of N, N-dimethylacrylamide and 0.1-3 parts of ultraviolet initiator, wherein the weight of the flame retardant is 20-400% of the total weight of acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide; the flame retardant comprises ammonium polyphosphate, melamine cyanurate, aluminum hydroxide and expanded graphite. According to the high-strength flame-retardant adhesive tape, the peel strength of the high-strength flame-retardant adhesive tape is improved by combining acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate and methyl acrylate; meanwhile, the expanded graphite serving as a flame retardant can be rapidly expanded at high temperature, so that the flame retardant effect is achieved; moreover, the expanded graphite can promote the carbon formation and improve the flame retardant effect; the flame retardant ammonium polyphosphate, the melamine cyanurate and the aluminum hydroxide are used together, so that the flame retardance of the adhesive tape is improved. In addition, the use of the monomers isooctyl acrylate and butyl acrylate endows the adhesive tape with pressure sensitivity, can pre-fix an adherend and has simpler application conditions.
Furthermore, the flame retardance of the adhesive tape is further improved by the cooperation of pentaerythritol, ammonium polyphosphate, melamine cyanurate, aluminum hydroxide and expanded graphite.
Furthermore, the flame retardant antimony trioxide and the bromine-containing flame retardant are added, so that the flame retardance of the adhesive tape is improved to the maximum extent.
The invention also provides a preparation method of the high-strength flame-retardant adhesive tape, which comprises the following steps: mixing acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate, N-dimethylacrylamide and an ultraviolet initiator, and performing prepolymerization under the irradiation of ultraviolet light to obtain a prepolymerization system; and mixing the prepolymerization system and a flame retardant, and polymerizing under ultraviolet irradiation to obtain the high-strength flame-retardant adhesive tape. The preparation method provided by the invention is simple to operate and suitable for industrial development.
Detailed Description
The invention provides a high-strength flame-retardant adhesive tape which comprises the following components in parts by weight:
1-20 parts of acrylic acid, 40-90 parts of isooctyl acrylate, 40-90 parts of butyl acrylate, 10-30 parts of isobornyl acrylate, 5-35 parts of methyl acrylate, 1-20 parts of N, N-dimethylacrylamide and 0.1-3 parts of ultraviolet initiator;
the weight of the flame retardant is 20 to 400 percent of the total weight of acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide;
the flame retardant comprises ammonium polyphosphate (APP), melamine polyphosphate (MPP), Melamine Cyanurate (MCA), aluminum hydroxide (ATH) and expanded graphite.
In the present invention, the starting materials used in the present invention are preferably commercially available products, as specifically described.
The high-strength flame-retardant adhesive tape provided by the invention comprises 1-20 parts by weight of acrylic acid, preferably 3-18 parts by weight, more preferably 5-15 parts by weight, and further preferably 10 parts by weight. In the invention, the acrylic acid is used as a functional monomer, so that the strength and the adhesive force performance of the adhesive tape can be improved.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 40-90 parts of isooctyl acrylate, preferably 50-80 parts, and further preferably 60-70 parts. In the invention, the isooctyl acrylate is used as an adhesive monomer, so that the adhesiveness and the pressure-sensitive performance of the adhesive tape can be improved.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 40-90 parts of butyl acrylate, preferably 50-80 parts, further preferably 55-65 parts, and more preferably 50 parts. In the invention, the butyl acrylate is used as an adhesive monomer, so that the adhesive property and the pressure-sensitive property of the adhesive tape can be improved.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 10-30 parts of isobornyl acrylate, preferably 15-25 parts, and further preferably 20 parts. In the invention, the isobornyl acrylate is used as a functional monomer, so that the hardness and the adhesive force performance of the adhesive tape can be improved.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 5-35 parts by weight of methyl acrylate, preferably 10-30 parts by weight, more preferably 15-25 parts by weight, and more preferably 20 parts by weight. In the invention, the methyl acrylate is used as a functional monomer, so that the viscosity of the adhesive tape and the adhesive force performance of a special base material can be improved.
The functional monomers (acrylic acid, isobornyl acrylate and methyl acrylate) and the adhesive monomers (isooctyl acrylate and butyl acrylate) are matched with each other, so that the adhesive tape is endowed with better viscosity and pressure sensitivity; due to the existence of the copolymerization chain between the functional monomer and the viscous monomer, the peel strength of the high-strength flame-retardant adhesive tape is also improved.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 1-20 parts of N, N-dimethylacrylamide, preferably 3-18 parts, more preferably 5-15 parts, and even more preferably 10 parts.
Based on the weight part of acrylic acid, the high-strength flame-retardant adhesive tape provided by the invention comprises 0.1-3 parts of ultraviolet initiator by weight, preferably 0.5-2.5 parts, more preferably 1.0-2.0 parts, and even more preferably 1.5 parts. In the present invention, the uv initiator preferably comprises one or more of benzophenone, BDK, and 184.
The high-strength flame-retardant adhesive tape provided by the invention comprises a flame retardant; the weight of the flame retardant is 20-400%, preferably 50-300%, and more preferably 80-260% of the total weight of acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide.
In the present invention, the flame retardant includes ammonium polyphosphate, melamine cyanurate, aluminum hydroxide, and expanded graphite.
Based on the weight part of acrylic acid, the flame retardant in the high-strength flame-retardant adhesive tape provided by the invention comprises 5-330 parts by weight of ammonium polyphosphate (APP), preferably 150-320 parts by weight, more preferably 170-280 parts by weight, and more preferably 200-220 parts by weight.
Based on the weight part of acrylic acid, the flame retardant in the high-strength flame-retardant adhesive tape provided by the invention comprises 5-210 parts of melamine polyphosphate (MPP), preferably 10-50 parts, more preferably 20-40 parts, and even more preferably 30 parts.
Based on the weight part of acrylic acid, the flame retardant in the high-strength flame-retardant adhesive tape provided by the invention comprises 1-85 parts of Melamine Cyanurate (MCA), preferably 1-65 parts, more preferably 5-30 parts, and even more preferably 20-25 parts.
Based on the weight part of acrylic acid, the flame retardant in the high-strength flame-retardant adhesive tape provided by the invention comprises 5-220 parts of aluminum hydroxide, preferably 10-230 parts of aluminum hydroxide, more preferably 15-100 parts of aluminum hydroxide, and even more preferably 20-80 parts of aluminum hydroxide. In the present invention, the particle size of the aluminum hydroxide is preferably 3 to 25 μm.
Based on the weight part of acrylic acid, the flame retardant in the high-strength flame-retardant adhesive tape provided by the invention comprises 5-230 parts by weight of expanded graphite, preferably 10-150 parts by weight, more preferably 20-100 parts by weight, and more preferably 30-90 parts by weight. In the present invention, the particle size of the expanded graphite is preferably 60 to 400 mesh.
In the invention, the fire retardant ammonium polyphosphate can expand (carbonize), isolate (air), insulate heat (reduce ignition point) when meeting heat, and has the function of flame retardance; the phosphorus and nitrogen contained in the melamine polyphosphate plays a role in carbonizing and isolating air, and the flame retardance is given to the adhesive tape; the melamine cyanurate releases inert gas when burning, so that the flammability of the adhesive tape can be reduced, and the flame retardance of the adhesive tape can be improved; the aluminum hydroxide can release water contained in the aluminum hydroxide at high temperature, so that the ignition point is reduced, and the flame retardance of the adhesive tape is improved; the expanded graphite can be rapidly expanded at high temperature, and can promote carbonization, prevent further combustion, and endow the adhesive tape with flame retardancy.
The flame retardant in the high-strength flame-retardant adhesive tape provided by the invention preferably further comprises pentaerythritol; the pentaerythritol is preferably 1 to 53 parts by weight, and more preferably 2 to 30 parts by weight based on the parts by weight of acrylic acid.
In the invention, pentaerythritol can react with ammonium polyphosphate, melamine polyphosphate and melamine cyanurate to further improve the flame-retardant network and improve the flame retardance of the adhesive tape.
The flame retardant in the high-strength flame-retardant adhesive tape preferably further comprises antimony trioxide and a bromine-containing flame retardant; the antimony trioxide is preferably 1 to 30 parts by weight, more preferably 1 to 10 parts by weight based on the acrylic acid. In the present invention, the particle size of the antimony trioxide is preferably 3 to 30 μm. The bromine-containing flame retardant is preferably 1 to 50 parts by weight, more preferably 1 to 20 parts by weight based on the parts by weight of acrylic acid. In the present invention, the bromine-containing flame retardant preferably includes hexabromocyclododecane and decabromodiphenyl ether; the mass ratio of hexabromocyclododecane to decabromodiphenyl ether in the bromine-containing flame retardant is preferably 1: 1-1: 2.
In the invention, the bromine-containing flame retardant and the antimony trioxide can generate synergistic action with the flame retardant, so that the flame retardant of the adhesive tape is further improved.
The invention also provides a preparation method of the high-strength flame-retardant adhesive tape, which comprises the following steps:
mixing acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate, N-dimethylacrylamide and an ultraviolet initiator, and performing prepolymerization under the irradiation of ultraviolet light to obtain a prepolymerization system;
and mixing the prepolymerization system and a flame retardant, and polymerizing under ultraviolet irradiation to obtain the high-strength flame-retardant adhesive tape.
Acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate, N-dimethylacrylamide and an ultraviolet initiator are mixed, and prepolymerization is carried out under the irradiation of ultraviolet light to obtain a prepolymerization system.
In the present invention, the viscosity of the prepolymerization system is preferably 2000 to 8000cPs, and more preferably 5000 cPs.
In the present invention, the mixing is preferably performed under an atmosphere of nitrogen. In the present invention, the temperature of the prepolymerization is preferably room temperature. In the present invention, both the mixing and the prepolymerization are preferably carried out under stirring. The prepolymerization time is not particularly limited in the present invention, as long as the viscosity of the prepolymerization system can meet the above requirements.
After a prepolymerization system is obtained, the prepolymerization system and a flame retardant are mixed, and polymerization is carried out under ultraviolet irradiation, so as to obtain the high-strength flame-retardant adhesive tape.
In the present invention, the mixing of the prepolymerization system and the flame retardant is preferably carried out under stirring.
In the invention, the intensity of the ultraviolet irradiation is preferably 20-1500 mW. In the present invention, the polymerization time is preferably 3 to 15 min.
The preparation method provided by the invention is simple to operate.
The high-strength flame-retardant adhesive tape and the method for preparing the same according to the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Example 1
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 3 parts of acrylic acid, 40 parts of isooctyl acrylate, 60 parts of butyl acrylate, 20 parts of isobornyl acrylate, 30 parts of methyl acrylate, 10 parts of N, N-dimethylacrylamide, 2 parts of benzophenone, 155 parts of ammonium polyphosphate (APP), 30 parts of melamine polyphosphate (MPP), 20 parts of Melamine Cyanurate (MCA), 20 parts of aluminum hydroxide (with the particle size of 10 mu m) and 50 parts of expanded graphite (with the particle size of 100 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet initiator after introducing nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet irradiation (intensity of 15mW), and stopping when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system;
adding APP, MPP, MCA, aluminum hydroxide and expanded graphite into the obtained prepolymerization system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1.0mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 2
The high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 8 parts of isooctyl acrylate, 80 parts of butyl acrylate, 15 parts of isobornyl acrylate, 20 parts of methyl acrylate, 10 parts of N, N-dimethylacrylamide, 2 parts of benzophenone, 180 parts of ammonium polyphosphate, 35 parts of melamine polyphosphate, 30 parts of melamine cyanurate, 45 parts of aluminum hydroxide (with the particle size of 8 mu m), 2 parts of pentaerythritol and 70 parts of expanded graphite (with the particle size of 150 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet light initiator benzophenone after introducing the nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet light irradiation (the intensity is 15mW), and stopping reaction when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system.
Adding APP, MPP, MCA, aluminum hydroxide, pentaerythritol and expanded graphite into the prepolymer system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1.0mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 3
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 1 part of acrylic acid, 90 parts of isooctyl acrylate, 40 parts of butyl acrylate, 10 parts of isobornyl acrylate, 5 parts of methyl acrylate, 20 parts of N, N-dimethylacrylamide, 3 parts of benzophenone, 220 parts of ammonium polyphosphate (APP), 15 parts of melamine polyphosphate (MPP), 25 parts of Melamine Cyanurate (MCA), 70 parts of aluminum hydroxide (with the particle size of 8 mu m), 1 part of Hexabromocyclododecane (HBCD), 1 part of decabromodiphenyl ether, 1 part of antimony trioxide (with the particle size of 5 mu m) and 30 parts of expanded graphite (with the particle size of 200 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet light initiator benzophenone after introducing the nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet light irradiation (the intensity is 15mW), and stopping reaction when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system.
Adding APP, MPP, MCA, aluminum hydroxide, Hexabromocyclododecane (HBCD), decabromodiphenyl ether, antimony trioxide and expanded graphite into the prepolymer system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 4
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 10 parts of acrylic acid, 90 parts of isooctyl acrylate, 90 parts of butyl acrylate, 20 parts of isobornyl acrylate, 5 parts of methyl acrylate, 5 parts of N, N-dimethylacrylamide, 3 parts of benzophenone, 280 parts of ammonium polyphosphate (APP), 40 parts of melamine polyphosphate (MPP), 65 parts of Melamine Cyanurate (MCA), 80 parts of aluminum hydroxide (with the particle size of 5 mu m) and 90 parts of expanded graphite (with the particle size of 150 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet initiator after introducing nitrogen gas for 15min, performing prepolymerization at room temperature under ultraviolet irradiation (intensity of 15mW), and stopping when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system;
adding APP, MPP, MCA, aluminum hydroxide and expanded graphite into the obtained prepolymerization system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 5
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 1 part of acrylic acid, 40 parts of isooctyl acrylate, 50 parts of butyl acrylate, 10 parts of isobornyl acrylate, 35 parts of methyl acrylate, 10 parts of N, N-dimethylacrylamide, 3 parts of benzophenone, 215 parts of ammonium polyphosphate, 33 parts of melamine polyphosphate, 1 part of melamine cyanurate, 40 parts of aluminum hydroxide (with the particle size of 10 mu m), 2 parts of pentaerythritol and 30 parts of expanded graphite (with the particle size of 120 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet light initiator benzophenone after introducing the nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet light irradiation (the intensity is 15mW), and stopping reaction when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system.
Adding APP, MPP, MCA, aluminum hydroxide, pentaerythritol and expanded graphite into the prepolymer system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 6
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 8 parts of acrylic acid, 57 parts of isooctyl acrylate, 60 parts of butyl acrylate, 15 parts of isobornyl acrylate, 20 parts of methyl acrylate, 15 parts of N, N-dimethylacrylamide, 3 parts of benzophenone, 320 parts of ammonium polyphosphate (APP), 30 parts of melamine polyphosphate (MPP), 5 parts of Melamine Cyanurate (MCA), 15 parts of aluminum hydroxide (with the particle size of 7 mu m), 6 parts of Hexabromocyclododecane (HBCD), 12 parts of decabromodiphenyl ether, 6 parts of antimony trioxide (with the particle size of 10 mu m) and 80 parts of expanded graphite (with the particle size of 150 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet light initiator benzophenone after introducing the nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet light irradiation (the intensity is 15mW), and stopping reaction when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system.
Adding APP, MPP, MCA, aluminum hydroxide, Hexabromocyclododecane (HBCD), decabromodiphenyl ether, antimony trioxide and expanded graphite into the prepolymer system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Example 7
A high-strength flame-retardant adhesive tape comprises the following components in parts by weight: 8 parts of acrylic acid, 85 parts of isooctyl acrylate, 80 parts of butyl acrylate, 15 parts of isobornyl acrylate, 20 parts of methyl acrylate, 10 parts of N, N-dimethylacrylamide, 2 parts of benzophenone, 90 parts of ammonium polyphosphate, 17.5 parts of melamine polyphosphate, 15 parts of melamine cyanurate, 22.5 parts of aluminum hydroxide (with the particle size of 8 mu m), 1 part of pentaerythritol and 35 parts of expanded graphite (with the particle size of 150 meshes).
The preparation method comprises the following steps:
adding acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide into a round-bottom flask, stirring, introducing nitrogen gas, adding an ultraviolet initiator after introducing nitrogen gas for 15min, performing prepolymerization at normal temperature under ultraviolet irradiation (intensity of 15mW), and stopping when the viscosity of the system reaches 5000cPs to obtain a prepolymerization system;
adding APP, MPP, MCA, aluminum hydroxide and expanded graphite into the obtained prepolymerization system, uniformly stirring, pouring the prepared mixture between an upper transparent film and a lower transparent film to form a colloid layer with the thickness of 1.0mm, and irradiating the colloid layer for 10min by ultraviolet light with the intensity of 15mW to obtain the high-intensity flame-retardant adhesive tape.
Comparative example 1
The differences from example 1 are: no ammonium polyphosphate was added.
Comparative example 2
The differences from example 1 are: no aluminum hydroxide was added.
Comparative example 3
The differences from example 1 are: no expanded graphite was added.
The adhesive tapes obtained in examples 1 to 7 and comparative examples 1 to 3 were subjected to performance tests, and the results are shown in Table 1.
TABLE 1 results of performance test of the adhesive tapes obtained in examples 1 to 7 and comparative examples 1 to 3
Figure BDA0003337702190000111
As can be seen from table 1: the flame-retardant adhesive tape disclosed by the invention has better performances in the aspects of flame retardance, bonding strength, initial adhesion and expansion rate of products, and far exceeds the existing products in various indexes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A high-strength flame-retardant adhesive tape comprises the following components in parts by weight:
1-20 parts of acrylic acid, 40-90 parts of isooctyl acrylate, 40-90 parts of butyl acrylate, 10-30 parts of isobornyl acrylate, 5-35 parts of methyl acrylate, 1-20 parts of N, N-dimethylacrylamide and 0.1-3 parts of ultraviolet initiator;
the weight of the flame retardant is 20 to 400 percent of the total weight of acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate and N, N-dimethylacrylamide;
the flame retardant comprises ammonium polyphosphate, melamine cyanurate, aluminum hydroxide and expanded graphite.
2. The high-strength flame-retardant adhesive tape according to claim 1, wherein the flame retardant comprises the following components in parts by weight based on acrylic acid: 5-330 parts of ammonium polyphosphate, 5-210 parts of melamine polyphosphate, 1-85 parts of melamine cyanurate, 5-220 parts of aluminum hydroxide and 5-230 parts of expanded graphite.
3. The high strength flame retardant tape according to claim 1 or 2, wherein the flame retardant further comprises pentaerythritol.
4. The high-strength flame-retardant adhesive tape according to claim 3, wherein the pentaerythritol is 1 to 53 parts by weight based on the acrylic acid.
5. The high strength flame retardant tape according to claim 1 or 2, wherein the flame retardant further comprises antimony trioxide and a bromine-containing flame retardant.
6. The tape of claim 5, wherein the antimony trioxide is in an amount of 1 to 30 parts by weight and the bromine-containing flame retardant is in an amount of 1 to 50 parts by weight, based on the acrylic acid.
7. The high strength flame retardant adhesive tape of claim 6 wherein the bromine containing flame retardant comprises hexabromocyclododecane and decabromodiphenyl ether; the mass ratio of hexabromocyclododecane to decabromodiphenyl ether in the bromine-containing flame retardant is 1: 1-1: 2.
8. The high-strength flame-retardant adhesive tape according to claim 1, wherein the particle size of the aluminum hydroxide is 3 to 25 μm; the particle size of the expanded graphite is 60-400 meshes.
9. The high strength flame retardant tape of claim 1 wherein the uv initiator comprises one or more of benzophenone, BDK, and 184.
10. The method for preparing a high strength flame retardant adhesive tape according to any one of claims 1 to 9, comprising the steps of:
mixing acrylic acid, isooctyl acrylate, butyl acrylate, isobornyl acrylate, methyl acrylate, N-dimethylacrylamide and an ultraviolet initiator, and performing prepolymerization under the irradiation of ultraviolet light to obtain a prepolymerization system;
and mixing the prepolymerization system and a flame retardant, and polymerizing under ultraviolet irradiation to obtain the high-strength flame-retardant adhesive tape.
CN202111299402.2A 2021-11-04 2021-11-04 High-strength flame-retardant adhesive tape and preparation method thereof Pending CN113861900A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040234753A1 (en) * 2003-03-18 2004-11-25 Tesa Aktiengesellschaft Flame-retardant pressure-sensitive adhesive, processes for preparing it, and its use for producing a pressure-sensitive adhesive tape
WO2009006168A1 (en) * 2007-06-29 2009-01-08 3M Innovative Properties Company Flame-resistant acrylic resin composition and pressure-sensitive adhesive sheet using same
CN113528030A (en) * 2020-04-17 2021-10-22 华南理工大学 Flame-retardant UV (ultraviolet) photocuring acrylate pressure-sensitive adhesive as well as preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040234753A1 (en) * 2003-03-18 2004-11-25 Tesa Aktiengesellschaft Flame-retardant pressure-sensitive adhesive, processes for preparing it, and its use for producing a pressure-sensitive adhesive tape
WO2009006168A1 (en) * 2007-06-29 2009-01-08 3M Innovative Properties Company Flame-resistant acrylic resin composition and pressure-sensitive adhesive sheet using same
CN113528030A (en) * 2020-04-17 2021-10-22 华南理工大学 Flame-retardant UV (ultraviolet) photocuring acrylate pressure-sensitive adhesive as well as preparation method and application thereof

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Application publication date: 20211231