CN113563815B - PE foam double-sided adhesive tape and preparation method thereof - Google Patents

PE foam double-sided adhesive tape and preparation method thereof Download PDF

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Publication number
CN113563815B
CN113563815B CN202110853902.XA CN202110853902A CN113563815B CN 113563815 B CN113563815 B CN 113563815B CN 202110853902 A CN202110853902 A CN 202110853902A CN 113563815 B CN113563815 B CN 113563815B
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sensitive adhesive
foam
layer
pressure
double
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CN113563815A (en
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许梓晶
黄大峰
李晶
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Ningbo Qihe New Material Technology Co ltd
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Ningbo Qihe New Material 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
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • 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
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene 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

Abstract

The invention discloses a PE foam double-sided tape and a preparation method thereof, and is characterized by sequentially comprising a 10-50 mu m pressure-sensitive adhesive layer, an 80-400 mu m PE foam layer, a 10-50 mu m pressure-sensitive adhesive layer and a 50 mu m release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film. The PE foam double-sided tape provided by the invention has better adhesive force, initial adhesive force and high-temperature retention force, and has more excellent aging resistance and waterproof performance.

Description

PE foam double-sided adhesive tape and preparation method thereof
Technical Field
The invention relates to the technical field of electronic adhesive products, in particular to a PE foam double-sided tape and a preparation method thereof.
Background
The foam cotton double-sided tape is a double-sided tape which takes foam cotton as a base material and is coated with pressure-sensitive adhesives of the same or different types on two sides, has the characteristics of excellent sealing performance, good filling performance, good buffering performance, strong bonding force and good adhesion, and can be widely applied to the fields of household appliances, instruments and meters, automobile industry, battery industry and the like. Due to the particularity of the application field of the industrial foam double-sided tape, the basic performance requirements of the tape including adhesive force, initial adhesive force and holding force are generally high, and the traditional foam double-sided tape cannot meet the requirements. Therefore, it is imperative to develop a foam double-sided adhesive with better adhesion, initial adhesion and retention.
The PE foam double-sided tape is a common high-performance foam double-sided tape at the present stage, is a double-sided tape formed by coating glue on two sides of a PE foamed base material, has the characteristics of strong adhesive force, good holding power, ultraviolet resistance, good weather resistance and the like, and is widely used for fixing automobile trim strips, corrugated plates, wheel arcs, flow blocking, brake plates, automobile logos, electric appliance nameplates and the like. However, the existing PE foam double-sided tape has more or less defects in the aspects of adhesive property, ring-measuring resistance, buffering property, shearing force resistance, shading property, easy-removal heavy-duty property, waterproof property, high-temperature resistance and the like; the problems of foam cohesive failure, adhesive layer cohesive failure, poor high-temperature resistance and the like often occur in performance test, and the method is not suitable for the application in the fields of precise electronic industry and the like.
Therefore, there is a need for a more efficient method for preparing a PE foam double-sided tape having better adhesion, initial adhesion and high-temperature holding power, and having more excellent aging resistance and water resistance.
Disclosure of Invention
The invention mainly aims to provide the PE foam double-sided tape which has better adhesive force, initial adhesive force, high-temperature retention force and excellent aging resistance and waterproof performance; meanwhile, the invention also provides a preparation method of the PE foam double-sided adhesive tape.
In order to achieve the aim, the invention provides a PE foam double-sided tape which is characterized by sequentially comprising a pressure-sensitive adhesive layer with the thickness of 10-50 microns, a PE foam layer with the thickness of 80-400 microns, a pressure-sensitive adhesive layer with the thickness of 10-50 microns and a release layer with the thickness of 50 microns from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
Preferably, the release layer is a polyester release film or polyethylene laminated release paper with double-sided release, and the release force ratio of the two sides of the release layer is 1 (2-4).
Preferably, the density of the PE foam layer is 0.3g/cm 3 -0.9g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
Preferably, the pressure-sensitive adhesive comprises the following components in parts by weight: 40-60 parts of acrylic pressure-sensitive adhesive, 8-16 parts of hyperbranched abienol urethane acrylate, 3-5 parts of vinyl-terminated fluorosilicone oil, 3-6 parts of trivinyltrimethylcyclotrisilazane, 1-3 parts of bis (1-vinylimidazole-2-) ketone, 1-3 parts of emulsifier, 0.4-0.8 part of initiator and 2-4 parts of nano boron fiber.
Preferably, the average diameter of the nano boron fiber is 300-500nm, and the length-diameter ratio is (15-20): 1.
Preferably, the emulsifier is at least one selected from sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium succinate and hexadecyl polyethylene oxide ether.
Preferably, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, the vinyl-terminated fluorosilicone oil is at least one of vinyl-terminated fluorosilicone oil K-300, vinyl-terminated fluorosilicone oil K-500 and vinyl-terminated fluorosilicone oil K-1000.
Preferably, the hyperbranched rosin alcohol urethane acrylate is a hyperbranched rosin alcohol urethane acrylate prepared by the method of chinese patent application example 1 of CN 110078893A.
Preferably, the acrylic pressure-sensitive adhesive is German Hangao acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
Preferably, the preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 25-35min to obtain the pressure-sensitive adhesive.
The invention also aims to provide a preparation method of the PE foam double-sided adhesive tape, which is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Due to the application of the technical scheme, the invention has the following beneficial effects:
(1) The PE foam double-sided adhesive tape disclosed by the invention is simple in preparation process and flow, convenient to operate and good in weather resistance, and has better applicability in the application field with higher performance requirements compared with the PE foam double-sided adhesive tape in the market by performing corona reinforcement treatment on the two sides of the PE foam double-sided adhesive tape; the prepared PE foam double-sided tape has improved various properties, especially adhesive force and high-temperature retention.
(2) According to the PE foam double-sided tape disclosed by the invention, through effective control of the structure and the thickness of each layer, the prepared PE foam double-sided tape is not easy to deform and change in size, and the shockproof buffer effect is good; the impact resistance and the acid and alkali resistance are good, and the use adaptability is more excellent.
(3) The invention discloses a PE foam double-sided tape, wherein a pressure-sensitive adhesive comprises the following components in parts by weight: 40-60 parts of acrylic pressure-sensitive adhesive, 8-16 parts of hyperbranched abienol urethane acrylate, 3-5 parts of vinyl-terminated fluorosilicone oil, 3-6 parts of trivinyltrimethylcyclotrisilazane, 1-3 parts of bis (1-vinylimidazole-2-) ketone, 1-3 parts of emulsifier and 2-4 parts of nano boron fiber. The components interact and influence each other, so that the adhesive force, the initial adhesion force and the high-temperature retention force are better, and the aging resistance and the waterproof performance are more excellent. The components containing unsaturated ethylenic bonds, such as acrylic pressure-sensitive adhesive, hyperbranched abietyl urethane acrylate, vinyl-terminated fluorosilicone oil, trivinyl trimethyl cyclotrisilazane and bis (1-vinyl imidazole-2-) ketone, can generate copolymerization crosslinking reaction under the initiation action of an initiator to form a network structure, so that the adhesive force, the initial adhesive force, the high-temperature holding power, the aging resistance and the waterproof performance are further improved. The addition of the nano boron fiber can enhance the bonding strength and mechanical property of the pressure-sensitive adhesive.
Detailed Description
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
Example 1
The PE foam double-sided tape is characterized by sequentially comprising a 20-micrometer pressure-sensitive adhesive layer, a 80-micrometer PE foam layer, a 20-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a double-sided release polyester release film, and the release ratio of two sides of the release layer is 1:2; the density of the PE foam layer is 0.3g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 40 parts of acrylic pressure-sensitive adhesive, 8 parts of hyperbranched abietyl alcohol polyurethane acrylate, 3 parts of vinyl-terminated fluorosilicone oil, 3 parts of trivinyl trimethyl cyclotrisilazane, 1 part of bis (1-vinyl imidazole-2-) ketone, 1 part of emulsifier, 0.4 part of initiator and 2 parts of nano boron fiber; the average diameter of the nano boron fiber is 300nm, and the length-diameter ratio is 15; the emulsifier is sodium dodecyl sulfate; the initiator is azobisisobutyronitrile; the vinyl-terminated fluorosilicone oil is vinyl-terminated fluorosilicone oil K-300; the hyperbranched abietyl alcohol polyurethane acrylate is prepared by the method of CN110078893A, chinese invention patent example 1; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 25min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Example 2
The PE foam double-sided tape is characterized by sequentially comprising a pressure-sensitive adhesive layer of 25 micrometers, a PE foam layer of 100 micrometers, a pressure-sensitive adhesive layer of 25 micrometers and a release layer of 50 micrometers from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is double-sided release polyethylene laminated release paper, and the release force ratio of two sides of the release layer is 1; the density of the PE foam layer is 0.5g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 45 parts of acrylic pressure-sensitive adhesive, 9 parts of hyperbranched abietyl alcohol urethane acrylate, 3.3 parts of vinyl-terminated fluorosilicone oil, 3.5 parts of trivinyl trimethyl cyclotrisilazane, 1.5 parts of bis (1-vinyl imidazole-2-) ketone, 1.4 parts of emulsifier, 0.4 part of initiator and 2.3 parts of nano boron fiber; the average diameter of the nano boron fiber is 350nm, and the length-diameter ratio is 16; the emulsifier is sodium dodecyl benzene sulfonate; the initiator is azobisisoheptonitrile; the vinyl-terminated fluorosilicone oil is K-500 vinyl-terminated fluorosilicone oil; the hyperbranched rosin alcohol urethane acrylate is prepared by the method of the Chinese invention patent example 1 of CN 110078893A; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 28min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain a finished product of the PE foam double-sided adhesive tape.
Example 3
The PE foam double-sided tape is characterized by sequentially comprising a 40-micron pressure-sensitive adhesive layer, a 100-micron PE foam layer, a 40-micron pressure-sensitive adhesive layer and a 50-micron release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is double-sidedThe polyethylene laminating release paper has the following advantages that the release force ratio of two surfaces of the release layer is 1; the density of the PE foam layer is 0.5g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 46 parts of acrylic pressure-sensitive adhesive, 10 parts of hyperbranched abienol urethane acrylate, 3.5 parts of vinyl-terminated fluorosilicone oil, 3.8 parts of trivinyl trimethyl cyclotrisilazane, 1.8 parts of bis (1-vinyl imidazole-2-) ketone, 1.6 parts of emulsifier, 0.5 part of initiator and 2.6 parts of nano boron fiber; the average diameter of the nano boron fiber is 350nm, and the length-diameter ratio is 17; the emulsifier is a mixture formed by mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and hexadecyl polyethylene oxide ether according to the mass ratio of 2; the initiator is azobisisobutyronitrile; the vinyl-terminated fluorosilicone oil is K-300 vinyl-terminated fluorosilicone oil; the hyperbranched rosin alcohol urethane acrylate is prepared by the method of the Chinese invention patent example 1 of CN 110078893A; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 30min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Example 4
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 100-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a double-sided release polyester release film, and the release ratio of two sides of the release layer is 1:3; the density of the PE foam layer is 0.6g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 50 parts of acrylic pressure-sensitive adhesive, 11 parts of hyperbranched abietyl alcohol polyurethane acrylate, 3.8 parts of vinyl-terminated fluorosilicone oil, 4.2 parts of trivinyl trimethyl cyclotrisilazane, 2 parts of bis (1-vinyl imidazole-2-) ketone, 1.8 parts of emulsifier, 0.5 part of initiator and 2.9 parts of nano boron fiber; the average diameter of the nano boron fiber is 400nm, and the length-diameter ratio is 18; the emulsifier is sodium succinate; the initiator is azobisisobutyronitrile; the vinyl-terminated fluorosilicone oil is vinyl-terminated fluorosilicone oil K-1000; the hyperbranched rosin alcohol urethane acrylate is prepared by the method of the Chinese invention patent example 1 of CN 110078893A; the acrylic pressure-sensitive adhesive is a German Hangao acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 30min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Example 5
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 150-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is double-sided release polyethylene laminated release paper, and the release force ratio of two sides of the release layer is 1; the density of the PE foam layer is 0.7g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 55 parts of acrylic pressure-sensitive adhesive, 12 parts of hyperbranched abietyl alcohol polyurethane acrylate, 4 parts of vinyl-terminated fluorosilicone oil, 4.5 parts of trivinyl trimethyl cyclotrisilazane, 2.4 parts of bis (1-vinyl imidazole-2-) ketone, 2 parts of emulsifier, 0.6 part of initiator and 3.2 parts of nano boron fiber; the average diameter of the nano boron fiber is 430nm, and the length-diameter ratio is 18; the emulsifier is a mixture formed by mixing sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium succinate and hexadecyl polyethylene oxide ether according to the mass ratio of 1; the initiator is a mixture formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to a mass ratio of 3:5; the vinyl-terminated fluorosilicone oil is a mixture formed by mixing vinyl-terminated fluorosilicone oil K-300, vinyl-terminated fluorosilicone oil K-500 and vinyl-terminated fluorosilicone oil K-1000 according to the mass ratio of 3; the hyperbranched abietyl alcohol polyurethane acrylate is prepared by the method of CN110078893A, chinese invention patent example 1; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 32min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Example 6
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 200-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a polyester release film with double-sided release, and the release force ratio of two sides of the release layer is 1; the density of the PE foam layer is 0.8g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 57 parts of acrylic pressure-sensitive adhesive, 13 parts of hyperbranched abietyl alcohol polyurethane acrylate, 4.3 parts of vinyl-terminated fluorosilicone oil, 4.8 parts of trivinyl trimethyl cyclotrisilazane, 2.6 parts of bis (1-vinyl imidazole-2-) ketone, 2.3 parts of emulsifier, 0.65 part of initiator and 3.5 parts of nano boron fiber; the average diameter of the nano boron fiber is 480nm, and the length-diameter ratio is 19; the emulsifier is hexadecyl polyethylene oxide ether; the initiator is azobisisobutyronitrile; the vinyl-terminated fluorosilicone oil is K-1000; the hyperbranched abietyl alcohol polyurethane acrylate is prepared by the method of CN110078893A, chinese invention patent example 1; the acrylic pressure-sensitive adhesive is a German Hangao acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 33min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
step S1, carrying out double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain a finished product of the PE foam double-sided adhesive tape.
Example 7
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 250-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a polyester release film with double-sided release, and the release force ratio of two sides of the release layer is 1; the density of the PE foam layer is 0.85g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 58 parts of acrylic pressure-sensitive adhesive, 14 parts of hyperbranched abietyl alcohol polyurethane acrylate, 4.5 parts of vinyl-terminated fluorosilicone oil, 5.2 parts of trivinyl trimethyl cyclotrisilazane, 2.8 parts of bis (1-vinyl imidazole-2-) ketone, 2.6 parts of emulsifier, 0.7 part of initiator and 3.7 parts of nano boron fiber; the average diameter of the nano boron fiber is 490nm, and the length-diameter ratio is 19; the emulsifier is a mixture formed by mixing hexadecyl polyethylene oxide ether and sodium succinate according to the mass ratio of 1:3; the initiator is azobisisobutyronitrile; the terminal vinyl fluorosilicone oil is a mixture formed by mixing terminal vinyl fluorosilicone oil K-500 and terminal vinyl fluorosilicone oil K-1000 according to a mass ratio of 1:2; the hyperbranched abietyl alcohol polyurethane acrylate is prepared by the method of CN110078893A, chinese invention patent example 1; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 33min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Example 8
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 300-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a double-sided release polyester release film, and the release ratio of two sides of the release layer is 1:4; the density of the PE foam layer is 0.9g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 59 parts of acrylic pressure-sensitive adhesive, 15 parts of hyperbranched abietyl alcohol polyurethane acrylate, 4.8 parts of vinyl-terminated fluorosilicone oil, 5.7 parts of trivinyl trimethyl cyclotrisilazane, 2.9 parts of bis (1-vinyl imidazole-2-) ketone, 2.8 parts of emulsifier, 0.75 part of initiator and 3.8 parts of nano boron fiber; the average diameter of the nano boron fiber is 500nm, and the length-diameter ratio is 20; the emulsifier is sodium dodecyl sulfate; the initiator is azobisisoheptonitrile; the vinyl-terminated fluorosilicone oil is vinyl-terminated fluorosilicone oil K-300; the hyperbranched abietyl alcohol polyurethane acrylate is prepared by the method of CN110078893A, chinese invention patent example 1; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 35min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided adhesive tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain a finished product of the PE foam double-sided adhesive tape.
Example 9
The PE foam double-sided tape is characterized by sequentially comprising a 50-micrometer pressure-sensitive adhesive layer, a 350-micrometer PE foam layer, a 50-micrometer pressure-sensitive adhesive layer and a 50-micrometer release layer from top to bottom; the pressure-sensitive adhesive is an acrylic pressure-sensitive adhesive; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film.
The release layer is a polyester release film with double-sided release, and the release force ratio of two sides of the release layer is 1:4; the density of the PE foam layer is 0.9g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
The pressure-sensitive adhesive comprises the following components in parts by weight: 60 parts of acrylic pressure-sensitive adhesive, 16 parts of hyperbranched abietyl alcohol polyurethane acrylate, 5 parts of vinyl-terminated fluorosilicone oil, 6 parts of trivinyl trimethyl cyclotrisilazane, 3 parts of bis (1-vinyl imidazole-2-) ketone, 3 parts of emulsifier, 0.8 part of initiator and 4 parts of nano boron fiber; the average diameter of the nano boron fiber is 500nm, and the length-diameter ratio is 20; the emulsifier is a mixture formed by mixing sodium dodecyl sulfate succinate and hexadecyl polyethylene oxide ether according to the mass ratio of 1; the initiator is azobisisoheptonitrile; the terminal vinyl fluorosilicone oil is a mixture formed by mixing terminal vinyl fluorosilicone oil K-300 and terminal vinyl fluorosilicone oil K-500 according to a mass ratio of 1:1; the hyperbranched rosin alcohol urethane acrylate is prepared by the method of the Chinese invention patent example 1 of CN 110078893A; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
The preparation method of the pressure-sensitive adhesive comprises the following steps: and fully and uniformly mixing the components in parts by weight, and standing at room temperature for 35min to obtain the pressure-sensitive adhesive.
The preparation method of the PE foam double-sided tape is characterized by comprising the following steps:
s1, performing double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on a release film to be attached to the upper layer of the PE foam, simultaneously peeling the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
Comparative example 1
The invention provides a PE foam double-sided tape, the formula and the preparation method of which are similar to those of embodiment 1, except that the PE foam double-sided tape sequentially comprises a 10-micron pressure-sensitive adhesive layer, an 80-micron PE foam layer, a 10-micron pressure-sensitive adhesive layer and a 50-micron release layer from top to bottom; and no trivinyltrimethylcyclotrisilazane and bis (1-vinylimidazol-2-) ketone were added.
Comparative example 2
The invention provides a PE foam double-sided tape, the formula and the preparation method of which are similar to those of embodiment 1, and the PE foam double-sided tape is different from that of embodiment 1 in that the PE foam double-sided tape sequentially comprises a 50-micron pressure-sensitive adhesive layer, a 600-micron PE foam layer, a 50-micron pressure-sensitive adhesive layer and a 50-micron release layer from top to bottom; and no hyperbranched abietyl alcohol urethane acrylate is added.
To further illustrate the unexpected beneficial technical effects of the PE foam double-sided tape mentioned in the examples of the present application, the PE foam double-sided tapes prepared in each group of examples 1 to 6 and comparative example 1 were subjected to the related performance tests, and the standard and test results of the test references are shown in table 1.
Figure 517101DEST_PATH_IMAGE002
As can be seen from table 1, the PE foam double-sided tape prepared in the examples of the present invention has better adhesive force, initial adhesive force and high temperature holding force.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The PE foam double-sided tape is characterized by sequentially comprising a pressure-sensitive adhesive layer of 20-50 microns, a PE foam layer of 80-400 microns, a pressure-sensitive adhesive layer of 20-50 microns and a release layer of 50 microns from top to bottom; the PE foam layer is a foaming layer of foaming polyethylene; the release layer is a double-sided release film; the pressure-sensitive adhesive comprises the following components in parts by weight: 40-60 parts of acrylic pressure-sensitive adhesive, 8-16 parts of hyperbranched abienol urethane acrylate, 3-5 parts of vinyl-terminated fluorosilicone oil, 3-6 parts of trivinyltrimethylcyclotrisilazane, 1-3 parts of bis (1-vinylimidazole-2-) ketone, 1-3 parts of emulsifier, 0.4-0.8 part of initiator and 2-4 parts of nano boron fiber.
2. The PE foam double-sided tape as claimed in claim 1, wherein the release layer is a polyester release film or polyethylene laminated release paper with double-sided release, and the ratio of the release force of the two sides of the release layer is 1 (2-4).
3. The PE foam double-sided tape as claimed in claim 1, wherein the density of the PE foam layer is 0.3g/cm 3 -0.9g/cm 3 (ii) a The compression deformation rate is less than or equal to 2 percent.
4. The PE foam double-sided tape as claimed in claim 1, wherein the nano boron fibers have an average diameter of 300-500nm and an aspect ratio of (15-20): 1.
5. The PE foam double sided tape of claim 1, wherein the emulsifier is at least one selected from sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium succinate, and cetyl polyethylene oxide ether; the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
6. The PE foam double-sided tape according to claim 1, wherein the vinyl-terminated fluorosilicone oil is at least one of vinyl-terminated fluorosilicone oil K-300, vinyl-terminated fluorosilicone oil K-500 and vinyl-terminated fluorosilicone oil K-1000; the acrylic pressure-sensitive adhesive is a German Han high acrylic pressure-sensitive adhesive DURO-TAK 8604-2.
7. The PE foam double-sided tape as claimed in claim 1, wherein the preparation method of the pressure-sensitive adhesive comprises the following steps: the components are fully and uniformly mixed according to the parts by weight, and the mixture is kept stand at room temperature for 25-35min to obtain the pressure-sensitive adhesive.
8. The preparation method of the PE foam double-sided tape according to any one of claims 1 to 7, which is characterized by comprising the following steps:
step S1, carrying out double-sided corona pretreatment on PE foam;
s2, coating a pressure-sensitive adhesive on a double-sided release film or release paper to be attached to the lower layer of the PE foam;
s3, coating a pressure-sensitive adhesive on the release film to be attached to the upper layer of the PE foam, stripping the release film, and rolling and curing;
and S4, slitting into specified widths to obtain the finished product of the PE foam double-sided adhesive tape.
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