CN111019543A - High-strength foam adhesive tape and preparation method thereof - Google Patents

High-strength foam adhesive tape and preparation method thereof Download PDF

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Publication number
CN111019543A
CN111019543A CN201911351060.7A CN201911351060A CN111019543A CN 111019543 A CN111019543 A CN 111019543A CN 201911351060 A CN201911351060 A CN 201911351060A CN 111019543 A CN111019543 A CN 111019543A
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acrylic
layer
parts
glue
foam
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CN111019543B (en
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李晓旭
邹学良
陈洪野
吴小平
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Suzhou Cybrid Application Technology Co ltd
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Suzhou Cybrid Application Technology 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
    • C09J7/26—Porous or cellular plastics
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/28—Glass
    • 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
    • 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
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/22—Expandable microspheres, e.g. Expancel®
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • 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
    • C09J2301/124—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
    • 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
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/24—Presence of a foam
    • C09J2400/243—Presence of a foam in the substrate
    • 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
    • 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
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Adhesive Tapes (AREA)

Abstract

The invention provides a high-strength foam adhesive tape and a preparation method thereof. The high-strength foam adhesive tape comprises an acrylic adhesive layer A, an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked; the acrylic acid foam layer is prepared from the following raw materials in parts by weight: 90-110 parts of acrylate prepolymer, 0.01-1 part of cross-linking agent, 0.1-3 parts of initiator, 1-15 parts of foaming agent and 1-5 parts of filler. The high-strength foam adhesive tape solves the problem that a foam layer of a traditional foam adhesive tape is easy to separate when the traditional foam adhesive tape is bonded, greatly improves the shearing strength of the foam adhesive tape, has higher peeling strength for various base materials, can be formed at one time, and is low in manufacturing cost and simple in process.

Description

High-strength foam adhesive tape and preparation method thereof
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to a high-strength foam adhesive tape and a preparation method thereof.
Background
The traditional foam adhesive tape is manufactured by coating solvent type (or hot melt type) pressure sensitive adhesive on one surface or two surfaces of EVA (ethylene vinyl acetate), PU (polyurethane) or PE (polyethylene) foam as a base material and then compounding a release material, and is widely applied to insulation, pasting, sealing, antiskid and buffering shockproof packaging of electronic and electrical products, mechanical parts, various small household appliances, mobile phone accessories, industrial instruments, computers and peripheral equipment, automobile accessories, audio and video equipment, toys, cosmetics, handicraft gifts, medical instruments, electric tools, office stationery, shelf exhibition, home decoration, acrylic glass, ceramic products and transportation industry. Therefore, the foam adhesive tape is influenced by the foam base material during production, the foam base material needs to be coated and compounded for multiple times, the process is complex, and the adhesive strength of the adhesive tape is low. The traditional foam adhesive tape adopts a foam adhesive layer, the cohesiveness of the foam adhesive tape is very difficult, and particularly, special surface treatment is not carried out between the foam adhesive tape and the adhesive layer, so that the adhesive part has low cohesiveness, is very easy to peel and has poor sealing effect. Meanwhile, various solvents are added in the production process of the traditional foam adhesive tape, so that environmental pollution and energy waste are caused, especially a solvent recovery or combustion device is required in coating equipment, and serious environmental pollution is caused if the solvent is directly discharged; in addition, during the drying process, the safety risk factor increases due to the presence of solvents and high temperatures.
CN105462512A discloses an ultrathin waterproof foam adhesive tape, which takes a polyethylene foam sheet as a base material, and high-viscosity acrylic acid glue is covered on two surfaces of the polyethylene foam sheet; the foam adhesive tape and the release paper are arranged side by side to form a roll; the polyethylene foam material is a closed-cell electronic cross-linked polyethylene foam material. Although the ultrathin waterproof foam adhesive tape has good sealing and waterproof capabilities, the thicker film base material has stronger lasting tension on the bending surface, so that the edge of the adhesive tape taking the film as the base material is easy to warp, and the adhesive tape is easy to deform after long-term use.
CN110511693A discloses a foam adhesive tape and a preparation method thereof, wherein the foam adhesive tape comprises an acrylic foam adhesive layer, an acrylic adhesive layer and an inorganic base material, the acrylic foam adhesive layer is dual-cured two-component resin, the two-component resin comprises a curing agent component and a resin component, and the acrylic adhesive layer is coated on two opposite surfaces of the acrylic foam adhesive layer; the surface of the inorganic substrate is provided with a treating agent layer which is adhered with the acrylic adhesive layer on one side of the foam adhesive tape. The strength of the foam adhesive tape is improved, but the foam adhesive tape uses an inorganic material as a base material, is influenced by the foam base material during production, needs to be coated and compounded for multiple times, and has low bonding strength and high process cost.
Therefore, the development of a foam tape which can be formed at one time and has high structural strength is the focus of current research in the field.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a high-strength foam adhesive tape and a preparation method thereof. The high-strength foam adhesive tape solves the problem that a foam layer of a traditional foam adhesive tape is easy to separate when the traditional foam adhesive tape is bonded, so that the shear strength of the foam adhesive tape is greatly improved, the foam adhesive tape has high peel strength for various base materials, can be formed at one time, is low in manufacturing cost, and replaces the defects of multiple traditional coating, complex process and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a high-strength foam adhesive tape which comprises an acrylic adhesive layer A, an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked;
the acrylic acid foam layer is prepared from the following raw materials in parts by weight: 90-110 parts of acrylate prepolymer, 0.01-1 part of cross-linking agent, 0.1-3 parts of initiator, 1-15 parts of foaming agent and 1-5 parts of filler.
According to the invention, the acrylic glue layer A, the acrylic foam layer, the acrylic glue layer B and the double-sided release film layer which are sequentially stacked are arranged, the soft high-viscosity acrylic foam layer is used as a base material, the cushion property and the fitting effect are good, and the high bonding performance on various bases can be ensured, so that various materials are firmly bonded, and the adhesive force on the surface of a rough material is also good. The preparation raw materials of the acrylic acid foam layer comprise: the acrylic acid ester pre-polymerization liquid, the cross-linking agent, the initiator, the foaming agent and the filler are matched with each other at a specific ratio, so that the viscosity of the acrylic acid foam layer is increased, the sticking capacity of the acrylic acid foam layer to the acrylic acid adhesive layer A and the acrylic acid adhesive layer B is further improved, and the problem of foam layer separation during bonding is avoided.
In the invention, in the raw material for preparing the acrylic foam layer, the acrylic ester pre-polymerization solution is 90-110 parts by weight, for example, 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts, 98 parts, 99 parts, 100 parts, 101 parts, 102 parts, 103 parts, 104 parts, 105 parts, 106 parts, 107 parts, 108 parts, 109 parts and 110 parts.
In the present invention, the crosslinking agent is used in an amount of 0.01 to 1 part by weight, for example, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight, based on the raw material for producing the acrylic foam layer.
In the present invention, in the raw material for preparing the acrylic foam layer, the initiator may be present in an amount of 0.1 to 3 parts by weight, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2 parts, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts, and 3 parts.
In the present invention, the weight portion of the foaming agent in the raw material for preparing the acrylic foam layer is 1 to 15 parts, and may be, for example, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts.
In the present invention, in the raw material for preparing the acrylic foam layer, the weight part of the filler is 1 to 5 parts, and may be, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts.
Preferably, the preparation raw materials of the acrylic adhesive layer A comprise, by weight: 90-110 parts of acrylate pre-polymerization liquid, 0.01-1 part of cross-linking agent and 0.1-3 parts of initiator.
In the present invention, in the raw material for preparing the acrylic adhesive layer a, the weight parts of the acrylic acid ester prepolymer solution are 90 to 110 parts, and may be, for example, 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts, 98 parts, 99 parts, 100 parts, 101 parts, 102 parts, 103 parts, 104 parts, 105 parts, 106 parts, 107 parts, 108 parts, 109 parts, and 110 parts.
In the present invention, the raw material for preparing the acrylic adhesive layer a may contain 0.01 to 1 part by weight of the crosslinking agent, for example, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight.
In the present invention, in the raw material for preparing the acrylic adhesive layer a, the weight part of the initiator is 0.1 to 3 parts, and may be, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2 parts, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts, and 3 parts.
Preferably, the raw materials for preparing the acrylic adhesive layer B comprise, by weight: 90-110 parts of acrylate pre-polymerization liquid, 0.01-1 part of cross-linking agent and 0.1-3 parts of initiator.
In the present invention, in the raw material for preparing the acrylic adhesive layer B, the weight parts of the acrylic acid ester prepolymer solution are 90 to 110 parts, and may be, for example, 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts, 98 parts, 99 parts, 100 parts, 101 parts, 102 parts, 103 parts, 104 parts, 105 parts, 106 parts, 107 parts, 108 parts, 109 parts, and 110 parts.
In the present invention, the raw material for preparing the acrylic adhesive layer B may contain 0.01 to 1 part by weight of the crosslinking agent, for example, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, or 1 part by weight.
In the present invention, in the raw material for preparing the acrylic adhesive layer B, the initiator may be 0.1 to 3 parts by weight, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, 1.2 part, 1.4 part, 1.6 part, 1.8 part, 2 part, 2.2 part, 2.4 part, 2.6 part, 2.8 part, and 3 part.
Preferably, the double-sided release film layer is a PET double-sided release film.
Preferably, the preparation raw materials of the acrylate pre-polymerization liquid comprise, by weight: 90-110 parts of composite acrylic monomer and 0.05-0.1 part of initiator.
In the present invention, the weight parts of the composite acrylic monomer in the raw materials for preparing the acrylic ester prepolymer solution are 90 to 110 parts, and may be, for example, 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts, 98 parts, 99 parts, 100 parts, 101 parts, 102 parts, 103 parts, 104 parts, 105 parts, 106 parts, 107 parts, 108 parts, 109 parts, and 110 parts.
In the present invention, the weight part of the initiator in the raw materials for preparing the acrylic ester prepolymer solution is 0.05 to 0.1 part, and may be, for example, 0.05 part, 0.06 part, 0.07 part, 0.08 part, 0.09 part, or 0.1 part.
Preferably, the composite acrylic monomer is a mixture of at least two of acrylic acid, methacrylic acid, isooctyl acrylate, isobornyl acrylate, butyl acrylate, isobornyl methacrylate, hydroxybutyl acrylate or acryloyl morpholine.
Preferably, the initiator is any one of α -dimethoxy- α -phenylacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, 2-hydroxy-1- (4- (2-hydroxy-2-methylpropionylphenyl) benzyl) -2-methyl-1-propanone or a macromolecular thioxanthone initiator or a mixture of at least two thereof.
Preferably, the viscosity of the acrylate prepolymer liquid is 1000-.
Preferably, the preparation method of the acrylate pre-polymerization solution comprises the following steps: and (2) mixing and stirring the composite acrylic monomer and the initiator according to the formula amount, and then carrying out prepolymerization reaction by using ultraviolet irradiation to obtain the acrylic ester prepolymerization solution.
Preferably, the mixing and stirring time is 20-40 min.
Preferably, the mixing and stirring are carried out under the protection of nitrogen.
Preferably, the wavelength of the ultraviolet light is 320-400nm UVA band, more preferably 365nm and 395 nm.
Preferably, the energy of the ultraviolet light is 1000-2For example, it may be 1000mJ/cm2、1500mJ/cm2、2000mJ/cm2、2500mJ/cm2、3000mJ/cm2、3500mJ/cm2、4000mJ/cm2。
Preferably, the light source of the ultraviolet light is an LED ultraviolet lamp.
Preferably, the crosslinking agent comprises any one or a mixture of at least two of 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate or trimethylolpropane triacrylate;
preferably, the initiator comprises any one or a mixture of at least two of α -dimethoxy- α -phenylacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, 2-hydroxy-1- (4- (2-hydroxy-2-methylpropionylphenyl) benzyl) -2-methyl-1-propanone or a macromolecular thioxanthone initiator.
Preferably, the foaming agent comprises hollow glass microspheres and/or expanded plastic microspheres.
Preferably, the hollow glass beads are any one or a mixture of at least two of K1, K15, K20 or K25. (3M Co.)
Preferably, the foamed plastic microspheres are one or a mixture of at least two of FN-80SDE or F-30 DE. (Songba Co., Ltd.)
Preferably, the filler comprises any one or a mixture of at least two of fumed silica, calcium carbonate, titanium dioxide or aluminium hydroxide.
Preferably, the thickness ratio of the acrylic adhesive layer A to the acrylic foam layer to the acrylic adhesive layer B to the double-sided release film is (1-5) to (10-20) to (1-5) to (2.5-7.5), and the ratio may be, for example, 1:10:1:2.5, 1:15:1:2.5, 2:10:1:2.5, 2:15:1:2.5, 2:20:1:2.5, 2:10:3:2.5, 2:15:3:2.5, 2:20:3:2.5, 3:10:2:5, 3:15:2:5, 3:20:2:5, and 3:20:2: 5.
Preferably, the thickness of the acrylic adhesive layer A is 20-100 μm, and may be, for example, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm.
Preferably, the thickness of the acrylic foam layer is 200-2000 μm, and may be, for example, 200 μm, 400 μm, 600 μm, 800 μm, 1000 μm, 1500 μm, 2000 μm.
Preferably, the thickness of the acrylic glue layer B is 20-100 μm, and may be, for example, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm.
Preferably, the thickness of the double-sided release film is 50 to 150 μm, and may be, for example, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm.
In a second aspect, the present invention provides a method for preparing a high strength foam tape according to the first aspect, the method comprising: and coating the glue of the acrylic acid glue layer A, the glue of the acrylic acid foam layer and the glue of the acrylic acid glue layer B on the double-sided release film, and curing by using ultraviolet irradiation to obtain the high-strength foam adhesive tape.
Preferably, the coating is performed by using a three-layer slit coating head.
Preferably, the wavelength of the ultraviolet light is 320-400nm, and may be 350nm, 355nm, 360nm, 365nm, 395nm, for example.
Preferably, the intensity of the ultraviolet light is 4000-2For example, it may be 4000mJ/cm2、4500mJ/cm2、5000mJ/cm2、5500mJ/cm2、6000mJ/cm2、6500mJ/cm2、7000mJ/cm2、7500mJ/cm2、8000mJ/cm2。
Preferably, the preparation method of the glue of the acrylic glue layer A comprises the following steps: and mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent and the initiator to obtain the acrylic adhesive layer A glue.
Preferably, the mixing and stirring are carried out in a vacuum stirred tank.
Preferably, the mixing and stirring time is 0.5 to 1.5h, and may be, for example, 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, 1.1h, 1.2h, 1.3h, 1.4h, 1.5 h.
Preferably, the mixing and stirring speed is 1500-.
Preferably, the viscosity of the acrylic glue layer a glue is 1000-.
Preferably, the preparation method of the glue of the acrylic glue layer A comprises the following steps: and mixing and stirring the acrylate pre-polymerization liquid, the cross-linking agent and the initiator in a vacuum stirring kettle at the rotating speed of 1500-8000 rpm for 0.5-1.5h to obtain the glue of the acrylic glue layer B, wherein the viscosity of the glue of the acrylic glue layer B is 1000-8000 cps.
Preferably, the preparation method of the glue for the acrylic acid foam layer comprises the following steps: and mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent, the initiator, the foaming agent and the filler to obtain the glue of the acrylic acid foam layer.
Preferably, the mixing and stirring are carried out in a vacuum stirred tank.
Preferably, the mixing and stirring time is 0.5 to 1.5h, and may be, for example, 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, 1.1h, 1.2h, 1.3h, 1.4h, 1.5 h.
Preferably, the mixing speed is 7000-9000rpm, which may be 7000rpm, 7500rpm, 8000rpm, 8500rpm, 9000rpm, for example.
Preferably, the viscosity of the acrylic glue layer a glue is 10000-50000cps, such as 10000cps, 15000cps, 20000cps, 25000cps, 30000cps, 35000cps, 40000cps, 45000cps, 50000 cps.
Preferably, the preparation method of the glue for the acrylic acid foam layer comprises the following steps: mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent, the initiator, the foaming agent and the filler in a vacuum stirring kettle at the rotating speed of 7000 plus 9000rpm for 0.5-1.5h to obtain the glue of the acrylic acid foam layer, wherein the viscosity of the glue of the acrylic acid glue layer A is 10000 plus 50000 cps.
Preferably, the preparation method of the glue of the acrylic glue layer B comprises the following steps: and mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent and the initiator to obtain the glue of the acrylic acid glue layer B.
Preferably, the mixing and stirring are carried out in a vacuum stirred tank.
Preferably, the mixing and stirring time is 0.5 to 1.5h, and may be, for example, 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, 1.1h, 1.2h, 1.3h, 1.4h, 1.5 h.
Preferably, the mixing and stirring speed is 1500-.
Preferably, the viscosity of the glue of the acrylic glue layer B is 1000-.
Preferably, the preparation method of the glue of the acrylic glue layer B comprises the following steps: and mixing and stirring the acrylate pre-polymerization liquid, the cross-linking agent and the initiator in a vacuum stirring kettle at the rotating speed of 1500-8000 rpm for 0.5-1.5h to obtain the glue of the acrylic glue layer B, wherein the viscosity of the glue of the acrylic glue layer B is 1000-8000 cps.
Preferably, the preparation method of the high-strength foam adhesive tape specifically comprises the following steps:
(1) mixing and stirring the acrylate pre-polymerization liquid, the cross-linking agent and the initiator in a vacuum stirring kettle at the rotating speed of 1500-8000 rpm for 0.5-1.5h to obtain the glue of the acrylic glue layer B, wherein the viscosity of the glue of the acrylic glue layer B is 1000-8000 cps; mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent, the initiator, the foaming agent and the filler in a vacuum stirring kettle at the rotating speed of 7000-9000rpm for 0.5-1.5h to obtain the glue of the acrylic acid foam layer, wherein the viscosity of the glue of the acrylic acid glue layer A is 10000-50000 cps; and mixing and stirring the acrylate pre-polymerization liquid, the cross-linking agent and the initiator in a vacuum stirring kettle at the rotating speed of 1500-8000 rpm for 0.5-1.5h to obtain the glue of the acrylic glue layer B, wherein the viscosity of the glue of the acrylic glue layer B is 1000-8000 cps.
(2) Coating the glue of the acrylic glue layer A, the glue of the acrylic foam layer and the glue of the acrylic glue layer B on the double-sided release film by adopting a three-layer slit type coating head, and then using the glue with the strength of 4000-2And curing by ultraviolet irradiation with the wavelength of 350-370nm to obtain the high-strength foam adhesive tape.
Compared with the prior art, the invention has the following beneficial effects:
(1) the high-strength foam adhesive tape provided by the invention solves the problem that a foam layer is easy to separate when the traditional foam adhesive tape is bonded, greatly improves the shear strength of the foam adhesive tape, has higher peel strength for various base materials, ensures one-step forming, is low in manufacturing cost, and replaces the defects of multiple coating, complex process and the like in the traditional foam adhesive tape.
(2) The high-strength foam adhesive tape has the advantages that the peeling force to a steel plate is more than 35N/cm, the peeling force to glass is more than 30N/cm, the peeling force to PMMA is more than 18N/cm, and the peeling force to ABS is more than 18N/cm.
Drawings
Fig. 1 is a schematic structural diagram of the high-strength foam adhesive tape of the invention.
Wherein, 1 is an acrylic acid glue layer A, 2 is an acrylic acid foam layer, 3 is an acrylic acid glue layer B, and 4 is a double-sided release film layer.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides a high strength bubble cotton tape, high strength bubble cotton tape is including the acrylic acid glue film A, the cotton layer of acrylic acid bubble, acrylic acid glue film B and the two-sided type rete that stacks gradually, acrylic acid glue film A thickness is 50 mu m, and acrylic acid bubble cotton layer thickness is 500 mu m, and acrylic acid glue film B thickness is 50 mu m, and the two-sided type rete thickness of leaving is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, wherein the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 15 parts of acrylic acid, 85 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone, and the viscosity of the acrylic ester pre-polymerization liquid is 4000 cps.
The preparation raw materials of the acrylic foam layer comprise, by weight, 100 parts of an acrylate pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate, 0.3 part of α -dimethoxy- α -phenyl acetophenone, 9 parts of hollow glass beads (K15 in Zelle chemical industry) and 2 parts of fumed silica (A200 in Texaco chemical industry).
The preparation raw materials of the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, wherein the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 15 parts of acrylic acid, 85 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone, and the viscosity of the acrylic ester pre-polymerization liquid is 4000 cps.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the embodiment comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 5000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate, the α -dimethoxy- α -phenyl acetophenone, the hollow glass beads and the fumed silica in the vacuum stirring kettle at the rotating speed of 8000rpm for 1h to obtain glue of the acrylic foam layer A, wherein the viscosity of the glue of the acrylic glue layer A is 40000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in the vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer B, and the viscosity of the glue layer B is 5000 cps;
(2) coating glue of an acrylic acid glue layer A, glue of an acrylic acid foam layer and glue of an acrylic acid glue layer B on a PET double-sided release film by adopting a three-layer slit type coating head, and then irradiating by using an LED ultraviolet lamp with the wavelength of 365nm for curing, wherein the intensity of ultraviolet rays is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Example 2
The embodiment provides a high strength bubble cotton tape, high strength bubble cotton tape is including the acrylic acid glue film A, the cotton layer of acrylic acid bubble, acrylic acid glue film B and the two-sided type rete that stacks gradually, acrylic acid glue film A thickness is 50 mu m, and acrylic acid bubble cotton layer thickness is 500 mu m, and acrylic acid glue film B thickness is 50 mu m, and the two-sided type rete thickness of leaving is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, wherein the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 12.5 parts of acrylic acid, 87.5 parts of isooctyl acrylate and 0.08 part of α -dimethoxy- α -phenylacetophenone, and the viscosity of the acrylic ester pre-polymerization liquid is 3000 cps.
The preparation raw materials of the acrylic foam layer comprise, by weight, 100 parts of an acrylate pre-polymerization liquid, 0.07 part of 1, 6-hexanediol diacrylate, 0.2 part of α -dimethoxy- α -phenyl acetophenone, 9 parts of hollow glass beads (the Zeller chemical model is K15) and 2 parts of fumed silica (the Desmoset model is A200).
The preparation raw materials of the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, wherein the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 12.5 parts of acrylic acid, 87.5 parts of isooctyl acrylate and 0.08 part of α -dimethoxy- α -phenylacetophenone, and the viscosity of the acrylic ester pre-polymerization liquid is 3000 cps.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the embodiment comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 3500cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate, the α -dimethoxy- α -phenyl acetophenone, the hollow glass beads and the fumed silica in the vacuum stirring kettle at the rotating speed of 8000rpm for 1h to obtain glue of the acrylic foam layer A, wherein the viscosity of the glue of the acrylic glue layer A is 50000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in the vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer B, and the viscosity of the glue layer B is 3500 cps;
(2) coating glue of an acrylic acid glue layer A, glue of an acrylic acid foam layer and glue of an acrylic acid glue layer B on a PET double-sided release film by adopting a three-layer slit type coating head, and then irradiating by using an LED ultraviolet lamp with the wavelength of 365nm for curing, wherein the intensity of ultraviolet rays is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Example 3
The embodiment provides a high strength bubble cotton tape, high strength bubble cotton tape is including the acrylic acid glue film A, the cotton layer of acrylic acid bubble, acrylic acid glue film B and the two-sided type rete that stacks gradually, acrylic acid glue film A thickness is 50 mu m, and acrylic acid bubble cotton layer thickness is 500 mu m, and acrylic acid glue film B thickness is 50 mu m, and the two-sided type rete thickness of leaving is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 10 parts of acrylic acid, 90 parts of isooctyl acrylate and 0.06 part of α -dimethoxy- α -phenylacetophenone.
The preparation raw materials of the acrylic acid foam layer comprise, by weight, 100 parts of an acrylic acid ester pre-polymerization liquid, 0.06 part of 1, 6-hexanediol diacrylate, 0.4 part of α -dimethoxy- α -phenyl acetophenone, 9 parts of hollow glass beads (the Zeller chemical model is K20) and 2 parts of fumed silica (the Texaco model is A200).
The raw materials for preparing the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.06 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the raw materials for preparing the acrylic ester pre-polymerization liquid comprise, by weight, 12.5 parts of acrylic acid, 87.5 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the embodiment comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 5000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate, the α -dimethoxy- α -phenyl acetophenone, the hollow glass beads and the fumed silica in the vacuum stirring kettle at the rotating speed of 8000rpm for 1h to obtain glue of the acrylic foam layer A, wherein the viscosity of the glue of the acrylic glue layer A is 40000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in the vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer B, and the viscosity of the glue layer B is 5000 cps;
(2) coating glue of an acrylic acid glue layer A, glue of an acrylic acid foam layer and glue of an acrylic acid glue layer B on a PET double-sided release film by adopting a three-layer slit type coating head, and then irradiating by using an LED ultraviolet lamp with the wavelength of 365nm for curing, wherein the intensity of ultraviolet rays is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Example 4
The embodiment provides a high strength bubble cotton tape, high strength bubble cotton tape is including the acrylic acid glue film A, the cotton layer of acrylic acid bubble, acrylic acid glue film B and the two-sided type rete that stacks gradually, acrylic acid glue film A thickness is 50 mu m, and acrylic acid bubble cotton layer thickness is 500 mu m, and acrylic acid glue film B thickness is 50 mu m, and the two-sided type rete thickness of leaving is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.07 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 10 parts of acrylic acid, 90 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The raw materials for preparing the acrylic acid foam cotton layer comprise, by weight, 100 parts of an acrylic acid ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate, 0.3 part of α -dimethoxy- α -phenyl acetophenone, 8 parts of foamed plastic microspheres (Songben FN-80SDE) and 3 parts of fumed silica (Desmoset type A200).
The preparation raw materials of the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.07 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 10 parts of acrylic acid, 90 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the embodiment comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 5000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate, the α -dimethoxy- α -phenyl acetophenone, the foamed plastic microspheres and the fumed silica in the vacuum stirring kettle at the rotating speed of 8000rpm for 1h to obtain glue of the acrylic foam layer A, wherein the viscosity of the glue of the acrylic glue layer A is 40000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in the vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain glue of the acrylic glue layer B, and the viscosity of the glue layer B is 5000 cps;
(2) coating the glue of the acrylic acid glue layer A, the glue of the acrylic acid foam cotton layer and the glue of the acrylic acid glue layer B on the PET double-sided release film by adopting a three-layer slit type coating head, and then coating the glue of the acrylic acid glue layer A, the glue of the acrylic acid foam cotton layer and the glue of the acrylic acid glue layer B on the PET doubleCuring by irradiating with 365nm LED ultraviolet lamp with intensity of 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Example 5
The embodiment provides a high strength bubble cotton tape, high strength bubble cotton tape is including the acrylic acid glue film A, the cotton layer of acrylic acid bubble, acrylic acid glue film B and the two-sided type rete that stacks gradually, acrylic acid glue film A thickness is 50 mu m, and acrylic acid bubble cotton layer thickness is 500 mu m, and acrylic acid glue film B thickness is 50 mu m, and the two-sided type rete thickness of leaving is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 10 parts of acrylic acid, 90 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The preparation raw materials of the acrylic acid foam layer comprise, by weight, 100 parts of an acrylic acid ester pre-polymerization liquid, 0.1 part of 1, 6-hexanediol diacrylate, 0.3 part of α -dimethoxy- α -phenyl acetophenone, 10 parts of hollow glass beads (the Zeller chemical model is K15) and 3 parts of fumed silica (the Texaco model is A200).
The preparation raw materials of the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 10 parts of acrylic acid, 90 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the embodiment comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at a rotating speed of 1500rpm for 1.5h to obtain glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 5000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate, the α -dimethoxy- α -phenyl acetophenone, the hollow glass beads and the fumed silica in the vacuum stirring kettle at a rotating speed of 5000rpm for 1.2h to obtain glue of the acrylic foam cotton layer, wherein the viscosity of the glue of the acrylic glue layer A is 40000cps, mixing and stirring the acrylic ester pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in the vacuum stirring kettle at a rotating speed of 2500rpm for 0.8h to obtain glue of the acrylic glue layer B, and wherein the viscosity of the glue of the acrylic glue layer B is 5000 cps;
(3) coating glue of an acrylic acid glue layer A, glue of an acrylic acid foam layer and glue of an acrylic acid glue layer B on a PET double-sided release film by adopting a three-layer slit type coating head, and then irradiating by using an LED ultraviolet lamp with the wavelength of 365nm for curing, wherein the intensity of ultraviolet rays is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Example 6
The embodiment provides a high-strength foam adhesive tape, which comprises an acrylic adhesive layer A, an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer, wherein the acrylic adhesive layer A, the acrylic foam layer B, the acrylic adhesive layer B and the double-sided release film layer are sequentially stacked, the thickness of the acrylic adhesive layer A is 50 micrometers, the thickness of the acrylic foam layer B is 2000 micrometers, the thickness of the acrylic adhesive layer B is 50 micrometers, the thickness of the double-sided release film layer is 100 micrometers, and the content of preparation raw material components of each layer and the preparation method of the high-strength foam adhesive tape are the same as those in.
Example 7
The embodiment provides a high-strength foam adhesive tape, which comprises an acrylic adhesive layer A, an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked, wherein the thickness of the acrylic adhesive layer A is 200 micrometers, the thickness of the acrylic foam layer is 200 micrometers, the thickness of the acrylic adhesive layer B is 200 micrometers, the thickness of the double-sided release film layer is 100 micrometers, and the content of preparation raw material components of each layer and the preparation method of the high-strength foam adhesive tape are the same as those in embodiment 1.
Comparative example 1
The comparative example provides a foam adhesive tape which only comprises an acrylic foam layer and a double-sided release film layer, wherein the thickness of the acrylic foam layer is 600 micrometers, and the thickness of the double-sided release film layer is 100 micrometers.
The preparation raw materials of the acrylic acid foam layer comprise, by weight, 100 parts of an acrylic acid ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate, 0.3 part of α -dimethoxy- α -phenyl acetophenone, 9 parts of hollow glass beads (the Zeller chemical model is K15) and 2 parts of fumed silica (the Texaco model is A200).
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the comparative example comprises the following steps:
(1) mixing and stirring the acrylic ester pre-polymerization liquid, 1, 6-hexanediol diacrylate, α -dimethoxy- α -phenyl acetophenone, hollow glass beads and fumed silica in a vacuum stirring kettle at the rotating speed of 8000rpm for 1h to obtain the glue of the acrylic acid foam layer, wherein the viscosity of the glue of the acrylic acid glue layer A is 40000 cps;
(2) coating the glue of the acrylic acid glue layer A, the glue of the acrylic acid foam layer and the glue of the acrylic acid glue layer B on a PET double-sided release film by using a single-layer slit type coating head, and then curing by using the irradiation of an LED ultraviolet lamp with the wavelength of 365nm, wherein the intensity of the ultraviolet ray is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Comparative example 2
The foam adhesive tape comprises an acrylic adhesive layer A, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked, wherein the thickness of the acrylic adhesive layer A is 300 mu m, the thickness of the acrylic adhesive layer B is 300 mu m, and the thickness of the double-sided release film layer is 100 mu m.
The preparation raw materials of the acrylic adhesive layer A comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 15 parts of acrylic acid, 85 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The preparation raw materials of the acrylic adhesive layer B comprise, by weight, 100 parts of an acrylic ester pre-polymerization liquid, 0.05 part of 1, 6-hexanediol diacrylate and 0.2 part of α -dimethoxy- α -phenylacetophenone, and the preparation raw materials of the acrylic ester pre-polymerization liquid comprise, by weight, 15 parts of acrylic acid, 85 parts of isooctyl acrylate and 0.05 part of α -dimethoxy- α -phenylacetophenone.
The double-sided release film layer is a PET double-sided release film.
The preparation method of the high-strength foam adhesive tape provided by the comparative example comprises the following steps:
(1) mixing and stirring the acrylate pre-polymerization liquid, the 1, 6-hexanediol diacrylate and the α -dimethoxy- α -phenyl acetophenone in a vacuum stirring kettle at the rotating speed of 2000rpm for 1h to obtain the glue of the acrylic glue layer A, wherein the viscosity of the glue of the acrylic glue layer A is 5000 cps;
(2) coating the glue of the acrylic acid glue layer A and the glue of the acrylic acid glue layer B on a PET double-sided release film, and curing by irradiating with an LED ultraviolet lamp with the wavelength of 365nm, wherein the intensity of the ultraviolet is 6000mJ/cm2And obtaining the high-strength foam adhesive tape.
Comparative example 3
This comparative example provides a high-strength foam tape, which is different from example 1 only in that: the high-strength foam adhesive tape comprises an acrylic adhesive layer A, an acrylic foam layer and a double-sided release film layer which are sequentially stacked, wherein the thickness of the acrylic adhesive layer A is 100 micrometers, the thickness of the acrylic foam layer A is 500 micrometers, the thickness of the double-sided release film layer is 100 micrometers, and the contents of other components and the preparation method are the same as those in example 1.
Comparative example 4
This comparative example provides a high-strength foam tape, which is different from example 1 only in that: the high-strength foam adhesive tape comprises an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked, wherein the thickness of the acrylic foam layer is 500 micrometers, the thickness of the acrylic adhesive layer B is 100 micrometers, the thickness of the double-sided release film layer is 100 micrometers, and the contents of other components and the preparation method are the same as those in example 1.
Comparative example 5
This comparative example provides a high-strength foam tape, which is different from example 1 only in that: the material of the acrylic foam layer was replaced with a polyethylene foam sheet, and the contents of other components and the preparation method were the same as in example 1.
Performance testing
The foam tapes prepared in examples 1 to 7 and the foam tapes prepared in comparative examples 1 to 5 were tested for peel strength and shear strength on various substrates, and the specific test standards and test results are shown in table 1:
TABLE 1
Figure BDA0002334673300000211
As can be seen from the above test data, the high strength foam tapes prepared in examples 1-7 have a peel force to steel plate of 35N/cm or more, a peel force to glass of 30N/cm or more, a peel force to PMMA of 18N/cm or more, and a peel force to ABS of 18N/cm or more; the static shear strength of the mirror steel plate is kept above 168H in the test. The high-strength foam adhesive tape disclosed by the invention fully solves the problem that a foam layer is easy to separate when the traditional foam adhesive tape is bonded, greatly improves the shear strength of the foam adhesive tape, has higher peel strength for various base materials, ensures one-step forming, is low in manufacturing cost, and replaces the defects of multiple coating, complex process and the like in the traditional foam adhesive tape.
The applicant states that the present invention is illustrated by the above examples to show the high strength foam tape and the preparation method thereof, but the present invention is not limited to the above examples, i.e. it does not mean that the present invention must be implemented by the above examples. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims (10)

1. The high-strength foam adhesive tape is characterized by comprising an acrylic adhesive layer A, an acrylic foam layer, an acrylic adhesive layer B and a double-sided release film layer which are sequentially stacked;
the acrylic acid foam layer is prepared from the following raw materials in parts by weight: 90-110 parts of acrylate prepolymer, 0.01-1 part of cross-linking agent, 0.1-3 parts of initiator, 1-15 parts of foaming agent and 1-5 parts of filler.
2. The high-strength foam adhesive tape according to claim 1, wherein the acrylic adhesive layer A is prepared from the following raw materials in parts by weight: 90-110 parts of acrylate pre-polymerization liquid, 0.01-1 part of cross-linking agent and 0.1-3 parts of initiator;
preferably, the raw materials for preparing the acrylic adhesive layer B comprise, by weight: 90-110 parts of acrylate pre-polymerization liquid, 0.01-1 part of cross-linking agent and 0.1-3 parts of initiator;
preferably, the double-sided release film layer is a PET double-sided release film.
3. The high-strength foam adhesive tape according to claim 1 or 2, wherein the acrylate pre-polymerization solution is prepared from the following raw materials in parts by weight: 90-110 parts of composite acrylic monomer and 0.05-0.1 part of initiator;
preferably, the composite acrylic monomer is a mixture of at least two of acrylic acid, methacrylic acid, isooctyl acrylate, isobornyl acrylate, butyl acrylate, isobornyl methacrylate, hydroxybutyl acrylate or acryloyl morpholine;
preferably, the initiator is any one or a mixture of at least two of α -dimethoxy- α -phenylacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, 2-hydroxy-1- (4- (2-hydroxy-2-methylpropionylphenyl) benzyl) -2-methyl-1-propanone or a macromolecular thioxanthone initiator;
preferably, the viscosity of the acrylate pre-polymerization liquid is 1000-8000 cps;
preferably, the preparation method of the acrylate pre-polymerization solution comprises the following steps: mixing and stirring a composite acrylic monomer and an initiator according to the formula amount, and then performing prepolymerization reaction by using ultraviolet irradiation to obtain an acrylate prepolymerization solution;
preferably, the mixing and stirring time is 20-40 min;
preferably, the mixing and stirring are carried out under the protection of nitrogen;
preferably, the wavelength of the ultraviolet light is 350-370 nm;
preferably, the energy of the ultraviolet light is 1000-2；
Preferably, the light source of the ultraviolet light is an LED ultraviolet lamp.
4. The high strength foam tape according to any one of claims 1-3, wherein the crosslinking agent comprises any one or a mixture of at least two of 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, or trimethylolpropane triacrylate;
preferably, the initiator comprises any one or a mixture of at least two of α -dimethoxy- α -phenylacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, 2-hydroxy-1- (4- (2-hydroxy-2-methylpropionylphenyl) benzyl) -2-methyl-1-propanone or a macromolecular thioxanthone initiator;
preferably, the foaming agent comprises hollow glass microspheres and/or foamed plastic microspheres;
preferably, the filler comprises any one or a mixture of at least two of fumed silica, calcium carbonate, titanium dioxide or aluminium hydroxide.
5. The high-strength foam tape according to any one of claims 1-4, wherein the thickness ratio of the acrylic adhesive layer A, the acrylic foam layer, the acrylic adhesive layer B and the double-sided release film is (1-5): (10-20): (1-5): (2.5-7.5);
preferably, the thickness of the acrylic glue layer A is 20-100 μm;
preferably, the thickness of the acrylic foam layer is 200-2000 μm;
preferably, the thickness of the acrylic adhesive layer B is 20-100 μm;
preferably, the thickness of the double-sided release film is 50-150 μm.
6. The method for preparing the high-strength foam tape according to any one of claims 1 to 5, wherein the method comprises the following steps: and coating the glue of the acrylic acid glue layer A, the glue of the acrylic acid foam layer and the glue of the acrylic acid glue layer B on the double-sided release film, and curing by using ultraviolet irradiation to obtain the high-strength foam adhesive tape.
7. The method for preparing the high-strength foam adhesive tape according to claim 6, wherein the coating is performed by using a three-layer slit coating head;
preferably, the wavelength of the ultraviolet light is 320-400 nm;
preferably, the intensity of the ultraviolet light is 4000-2。
8. The preparation method of the acrylic glue layer A according to claim 6 or 7, characterized in that the preparation method of the glue of the acrylic glue layer A is as follows: mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent and the initiator to obtain the acrylic adhesive layer A glue;
preferably, the mixing and stirring are carried out in a vacuum stirring kettle;
preferably, the mixing and stirring time is 0.5-1.5 h;
preferably, the rotation speed of the mixing and stirring is 1500-;
preferably, the viscosity of the acrylic glue layer A glue is 1000-8000 cps.
9. The method for preparing the acrylic foam layer according to any one of claims 6 to 8, wherein the glue of the acrylic foam layer is prepared by: mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent, the initiator, the foaming agent and the filler to obtain glue of the acrylic acid foam layer;
preferably, the mixing and stirring are carried out in a vacuum stirring kettle;
preferably, the mixing and stirring time is 0.5-1.5 h;
preferably, the rotation speed of the mixing and stirring is 7000-9000 rpm;
preferably, the viscosity of the acrylic glue layer A glue is 10000-50000 cps.
10. The method for preparing the acrylic glue layer B according to any one of claims 6 to 9, wherein the glue of the acrylic glue layer B is prepared by the following steps: mixing and stirring the acrylic ester pre-polymerization liquid, the cross-linking agent and the initiator to obtain glue of the acrylic acid glue layer B;
preferably, the mixing and stirring are carried out in a vacuum stirring kettle;
preferably, the mixing and stirring time is 0.5-1.5 h;
preferably, the rotation speed of the mixing and stirring is 1500-;
preferably, the viscosity of the acrylic glue layer B glue is 1000-8000 cps.
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CN111518482A (en) * 2020-05-06 2020-08-11 广东弘擎电子材料科技有限公司 High-performance acrylic acid foaming body adhesive tape and preparation method thereof
CN112745771A (en) * 2020-12-30 2021-05-04 苏州赛伍应用技术股份有限公司 Acrylic ester foam adhesive tape and preparation method thereof
CN113429509A (en) * 2021-07-16 2021-09-24 苏州环明电子科技有限公司 UV acrylate foam and preparation method and application thereof
CN113444469A (en) * 2021-07-14 2021-09-28 浙江工业大学 Synthesis process of high-elasticity photocuring acrylic foam adhesive tape
CN113835298A (en) * 2021-09-30 2021-12-24 明冠新材料股份有限公司 Photosensitive dry film and preparation method thereof
CN113956807A (en) * 2020-12-31 2022-01-21 广州领音航复合材料有限公司 Foam for automobile air pipe
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CN114907515A (en) * 2022-06-17 2022-08-16 新纶电子材料(常州)有限公司 Acrylate resin, foam material prepared from acrylate resin and preparation method of foam material
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Publication number Priority date Publication date Assignee Title
CN111518482A (en) * 2020-05-06 2020-08-11 广东弘擎电子材料科技有限公司 High-performance acrylic acid foaming body adhesive tape and preparation method thereof
CN111518482B (en) * 2020-05-06 2022-03-25 广东弘擎电子材料科技有限公司 High-performance acrylic acid foaming body adhesive tape and preparation method thereof
CN112745771A (en) * 2020-12-30 2021-05-04 苏州赛伍应用技术股份有限公司 Acrylic ester foam adhesive tape and preparation method thereof
CN113956807A (en) * 2020-12-31 2022-01-21 广州领音航复合材料有限公司 Foam for automobile air pipe
CN113444469A (en) * 2021-07-14 2021-09-28 浙江工业大学 Synthesis process of high-elasticity photocuring acrylic foam adhesive tape
CN113429509A (en) * 2021-07-16 2021-09-24 苏州环明电子科技有限公司 UV acrylate foam and preparation method and application thereof
CN113835298A (en) * 2021-09-30 2021-12-24 明冠新材料股份有限公司 Photosensitive dry film and preparation method thereof
CN113835298B (en) * 2021-09-30 2023-11-28 明冠新材料股份有限公司 Photosensitive dry film and preparation method thereof
WO2023184815A1 (en) * 2022-03-28 2023-10-05 南方科技大学 Super-elastic adhesive, preparation method and use
CN114752013A (en) * 2022-05-16 2022-07-15 安徽富印新材料有限公司 Preparation method of high-temperature-resistant acrylic acid foam cotton adhesive tape
CN114752013B (en) * 2022-05-16 2024-03-12 安徽富印新材料股份有限公司 Preparation method of high-temperature-resistant acrylic foam adhesive tape
CN114907515A (en) * 2022-06-17 2022-08-16 新纶电子材料(常州)有限公司 Acrylate resin, foam material prepared from acrylate resin and preparation method of foam material

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