CN110669465A - Magnetic-thermal viscosity-reducing adhesive tape and preparation method thereof - Google Patents
Magnetic-thermal viscosity-reducing adhesive tape and preparation method thereof Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/10—Epoxy resins modified by unsaturated compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- 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
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- 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
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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®
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- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
- C08J2363/10—Epoxy resins modified by unsaturated compounds
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- C09J2433/00—Presence of (meth)acrylic polymer
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- C09J2463/00—Presence of epoxy resin
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Abstract
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, acrylate monomers, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional oligomer/multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator; the preparation process comprises the following steps: s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use; s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation; s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing. According to the viscosity-reducing adhesive tape, FeC particles can generate certain heat under an alternating magnetic field, and the heat is caused by eddy current loss, magnetic hysteresis, magnetic vector rotation and physical rotation of the FeC particles under the alternating magnetic field, so that an external heating source is not needed, and only the alternating magnetic field is needed to be applied.
Description
Technical Field
The invention relates to a viscosity-reducing adhesive tape and a preparation method thereof.
Background
The anti-sticking protective film is divided into a thermal anti-sticking protective film and a UV anti-sticking protective film, and the current anti-sticking protective film is mainly used for the protection of a wafer cutting process and a later picking process, and has a tendency of transferring to the protection of a high-performance toughened glass (such as mobile phone glass) process and the protection of a laser engraving process of a metal rear cover of a mobile phone.
Traditional heat visbreaking membrane adopts the mode of exothermal source to heat, and whole components and parts all can receive the influence during heating, and in addition, exothermal source's rate of heating is slow, and the heating is inhomogeneous, and the energy waste is serious.
Disclosure of Invention
In order to overcome the defects of the existing viscosity-reducing adhesive tape, the invention provides the magnetic-thermal viscosity-reducing adhesive tape which has excellent peel strength before an alternating magnetic field is applied and has remarkably reduced peel strength after the alternating magnetic field is applied and the preparation method thereof.
The technical scheme for solving the technical problem is as follows: a magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional oligomer/multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
2-4 parts by mass of FeC particles
20-50 parts by mass of acrylate monomer
1 to 30 parts by mass of a polyfunctional oligomer and/or polyfunctional monomer
0.5-2 parts by mass of photoinitiator
0.1 to 2 parts by mass of a dispersant
0.2-2 parts by mass of leveling agent
0.3-2 parts by mass of a crosslinking agent
25-60 parts by mass of solvent
2-10 parts by mass of thermally expandable microspheres.
The mass portion of FeC particles is 2-4, the initial adhesive force and the stripping force of the magnetic-thermal viscosity-reducing adhesive tape are high at the content, the heating is uniform under an alternating magnetic field, the heating effect is good, and the stripping force is obviously reduced. When the content is less than 2 parts by mass, FeC particles generating heat under an alternating magnetic field are insufficient, the heating effect is poor, and the efficiency is low. When the content is more than 4 parts by mass, FeC particles are easily agglomerated, and the peeling strength and the heating uniformity are affected.
The thermal expansion microspheres can be heated to expand at about 110 degrees, and form folds and gaps between the thermal expansion microspheres and the bonded surface, so that the bonding area is reduced, and the peel strength is further reduced.
Preferably, the FeC particles are FeC particles modified by KH570 (silane coupling agent). The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2-3%. The KH570 is coated on the surface of the FeC, the dosage of the KH570 modifier is 2% -3%, and under the content, the KH570 forms a monolayer surface coating on the surface of the FeC particles, so that the compatibility with macromolecules is optimal. When the content is less than 2%, FeC particles are easy to agglomerate, and when the content is more than 3%, a plurality of layers of coatings are formed on the surface of FeC, so that the dispersibility in glue is poor.
FeC particles can weaken the acting force among polymer molecules, so that the polymer can flow on a bonding interface more easily, and the wettability is improved, on the other hand, FeC/KH570 is rigid particles and has the toughening effect on the polymer, and a small amount of double bonds exist on the surface of the FeC particles modified by KH570 and can react with an acrylate monomer to play a role of a cross-linking agent and improve the cohesive force of the glue.
Preferably, the acrylate monomer is butyl acrylate, or ethyl acrylate, or n-octyl acrylate, or isooctyl acrylate (2-EHA), or isooctyl methacrylate (2-EHMA), or dodecyl methacrylate, or methyl acrylate, or methyl methacrylate, or ethyl methacrylate, or n-butyl methacrylate, or vinyl acetate, or styrene, or acrylic acid.
Preferably, the multifunctional oligomer is an epoxy acrylate oligomer or a dendritic ether amide multifunctional (meth) acrylate oligomer;
the multifunctional monomer is dipentaerythritol hexaacrylate, or (5) ethoxylated pentaerythritol tetraacrylate, or dipentaerythritol hexaacrylate.
Preferably, the photoinitiator is diphenylethanone, or alpha-hydroxyalkylphenone, or bis-benzoylphenylphosphine oxide, or benzophenone, or isopropylthioxanthone.
Preferably, the dispersant is vinyl bis stearamide, or glyceryl monostearate, or glyceryl tristearate, or liquid paraffin, or zinc stearate, or polyethylene wax.
Preferably, the leveling agent is polydimethylsiloxane, polymethylphenylsiloxane, organopolysiloxane with a comb-shaped structure, or UV 360.
Preferably, the crosslinking agent is DCP, or BPO, or DTBP, or DBHP, or 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane.
Preferably, the solvent is ethyl acetate, or toluene, or ethanol, or xylene.
Preferably, the thermally expandable microspheres have a particle size of 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Preferably, the mass percentage of the KH570 modifier in the ethanol solvent is 2% -3%.
The invention has the beneficial effects that: according to the viscosity-reducing adhesive tape, FeC particles can generate certain heat under an alternating magnetic field, and the heat is caused by eddy current loss, magnetic hysteresis, magnetic vector rotation and physical rotation of the FeC particles under the alternating magnetic field, so that an external heating source is not needed, and only the alternating magnetic field is needed to be applied.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example one
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, acrylate monomers, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional oligomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3 parts by mass
40 parts by mass of an acrylate monomer
20 parts by mass of polyfunctional oligomer
1 part by mass of photoinitiator
1.2 parts by mass of a dispersant
Leveling agent 1 part by mass
1.3 parts by mass of a crosslinking agent
40 parts by mass of a solvent
5 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.5%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is butyl acrylate, the multifunctional oligomer is epoxy acrylate oligomer, the photoinitiator is diphenylethanone, the dispersant is vinyl bis stearamide, the leveling agent is polydimethylsiloxane, the crosslinking agent is DCP, and the solvent is ethyl acetate.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example two
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3.9 parts by mass
30 parts by mass of an acrylate monomer
Polyfunctional monomer 3 parts by mass
0.8 part by mass of a photoinitiator
0.2 part by mass of a dispersant
0.9 part by mass of leveling agent
1 part by mass of a crosslinking agent
25 parts by mass of a solvent
8 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.1%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, polyfunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by the person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is ethyl acrylate, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is alpha-hydroxyalkylphenone, the dispersant is glycerol monostearate, the leveling agent is polymethylphenylsiloxane, the crosslinking agent is BPO, and the solvent is toluene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE III
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3.7 parts by mass
20 parts by mass of an acrylate monomer
15 parts by mass of a multifunctional oligomer and a multifunctional monomer,
wherein the content of the polyfunctional oligomer is 10 parts by mass,
polyfunctional monomer 5 parts by mass
1.2 parts by mass of a photoinitiator
Dispersant 1.5 parts by mass
Leveling agent 2 parts by mass
0.5 part by mass of a crosslinking agent
31 parts by mass of a solvent
10 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.9%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is n-octyl acrylate, the multifunctional oligomer is a dendritic ether amide multifunctional (meth) acrylate oligomer, the multifunctional monomer is (5) ethoxylated pentaerythritol tetraacrylate, the photoinitiator is bis-benzoylphenylphosphine oxide, the dispersant is glyceryl tristearate, the leveling agent is an organopolysiloxane with a comb-like structure, the crosslinking agent is DTBP, and the solvent is ethanol.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example four
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 4 parts by mass
50 parts by mass of an acrylate monomer
30 parts by mass of a multifunctional oligomer and a multifunctional monomer,
wherein the content of the polyfunctional oligomer is 15 parts by mass,
15 parts by mass of polyfunctional monomer
0.5 part by mass of a photoinitiator
1 part by mass of a dispersant
Leveling agent 1.2 parts by mass
2 parts by mass of a crosslinking agent
50 parts by mass of a solvent
2 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 3%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is isooctyl acrylate (2-EHA), the multifunctional oligomer is a dendritic ether amide multifunctional (meth) acrylate oligomer, the multifunctional monomer is (5) ethoxylated pentaerythritol tetraacrylate, the photoinitiator is benzophenone, the dispersant is liquid paraffin, the leveling agent is UV360, the crosslinking agent is DBHP, and the solvent is xylene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE five
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2.5 parts by mass
28 parts by mass of an acrylate monomer
1 part by mass of a polyfunctional oligomer and a polyfunctional monomer,
wherein the content of the polyfunctional oligomer is 0.2 parts by mass,
0.8 part by mass of polyfunctional monomer
2 parts by mass of photoinitiator
0.1 part by mass of a dispersant
0.6 part by mass of leveling agent
0.8 part by mass of a crosslinking agent
36 parts by mass of a solvent
9 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.2%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is isooctyl methacrylate (2-EHMA), the multifunctional oligomer is an epoxy acrylate oligomer, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is isopropyl thioxanthone, the dispersant is zinc stearate, the leveling agent is polydimethylsiloxane, the crosslinking agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide, and the solvent is ethyl acetate.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE six
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2 parts by mass
42 parts by mass of an acrylate monomer
8 parts by mass of a polyfunctional oligomer and a polyfunctional monomer,
wherein the content of the polyfunctional oligomer is 5 parts by mass,
2 parts by mass of polyfunctional monomer
1.8 parts by mass of a photoinitiator
0.3 part by mass of a dispersant
0.2 parts by mass of leveling agent
0.7 part by mass of a crosslinking agent
28 parts by mass of a solvent
3 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.6%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is dodecyl methacrylate, the multifunctional oligomer is a dendritic etheramide multifunctional (meth) acrylate oligomer, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is diphenylethanone, the dispersant is vinyl bis stearamide, the leveling agent is polydimethylsiloxane, the crosslinking agent is DCP, and the solvent is toluene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE seven
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3.8 parts by mass
Acrylic ester monomer 22 parts by mass
38 parts by mass of a multifunctional oligomer and a multifunctional monomer,
wherein the content of the polyfunctional oligomer is 18 parts by mass,
20 parts by mass of polyfunctional monomer
1.5 parts by mass of a photoinitiator
0.8 part by mass of a dispersant
0.3 part by mass of leveling agent
0.3 part by mass of a crosslinking agent
46 parts by mass of a solvent
6 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.4%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is methyl acrylate, the multifunctional oligomer is epoxy acrylate oligomer, the multifunctional monomer is (5) ethoxylated pentaerythritol tetraacrylate, the photoinitiator is alpha-hydroxyalkyl phenone, the dispersant is glycerol monostearate, the leveling agent is polymethylphenylsiloxane, the crosslinking agent is BPO, and the solvent is ethanol.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example eight
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3.5 parts by mass
47 parts by mass of an acrylic ester monomer
19 parts by mass of a multifunctional oligomer and a multifunctional monomer,
wherein 12 parts by mass of the polyfunctional oligomer,
polyfunctional monomer 7 parts by mass
0.6 part by mass of a photoinitiator
2 parts by mass of a dispersant
Leveling agent 1.8 parts by mass
1.1 parts by mass of a crosslinking agent
60 parts by mass of a solvent
4 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.8%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, multifunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is methyl methacrylate, the multifunctional oligomer is a dendritic etheramide multifunctional (meth) acrylate oligomer, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is bis-benzoylphenylphosphine oxide, the dispersant is glyceryl tristearate, the leveling agent is an organopolysiloxane with a comb-like structure, the crosslinking agent is DTBP, and the solvent is xylene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example nine
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 3.2 parts by mass
45 parts by mass of an acrylate monomer
13 parts by mass of polyfunctional oligomer
0.7 part by mass of a photoinitiator
1.8 parts by mass of a dispersant
Leveling agent 1.5 parts by mass
0.3 part by mass of a crosslinking agent
55 parts by mass of a solvent
7 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.3%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is ethyl methacrylate, the multifunctional oligomer is an epoxy acrylate oligomer, the photoinitiator is benzophenone, the dispersant is liquid paraffin, the leveling agent is UV360, the crosslinking agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide, and the solvent is ethyl acetate.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example ten
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2.1 parts by mass
25 parts by mass of an acrylate monomer
Polyfunctional monomer 5 parts by mass
1.6 parts by mass of a photoinitiator
0.5 part by mass of a dispersant
Leveling agent 1.9 parts by mass
1.8 parts by mass of a crosslinking agent
30 parts by mass of a solvent
5.5 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.7%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, polyfunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by the person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is n-butyl methacrylate, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is isopropyl thioxanthone, the dispersant is zinc stearate, the leveling agent is polydimethylsiloxane, the crosslinking agent is DCP, and the solvent is toluene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE eleven
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2.8 parts by mass
35 parts by mass of an acrylate monomer
25 parts by mass of polyfunctional monomer
1.7 parts by mass of a photoinitiator
Dispersant 1.3 parts by mass
0.4 part by mass of leveling agent
1.6 parts by mass of a crosslinking agent
38 parts by mass of a solvent
8.8 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2.5%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, polyfunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by the person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is vinyl acetate, the multifunctional monomer is (5) ethoxylated pentaerythritol tetraacrylate, the photoinitiator is diphenylethanone, the dispersant is polyethylene wax, the leveling agent is polymethylphenylsiloxane, the crosslinking agent is BPO, and the solvent is ethanol.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Example twelve
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2.3 parts by mass
29 parts by mass of an acrylate monomer
23 parts by mass of polyfunctional monomer
1.3 parts by mass of a photoinitiator
1.6 parts by mass of a dispersant
Leveling agent 1.6 parts by mass
0.4 part by mass of a crosslinking agent
42 parts by mass of a solvent
3.5 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 3%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, polyfunctional monomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by the person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is styrene, the multifunctional monomer is dipentaerythritol hexaacrylate, the photoinitiator is isopropyl thioxanthone, the dispersant is vinyl bis stearamide, the leveling agent is organopolysiloxane with a comb-like structure, the crosslinking agent is DTBP, and the solvent is xylene.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
EXAMPLE thirteen
A magnetic thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a multifunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
FeC particles 2.4 parts by mass
41 parts by mass of an acrylic ester monomer
28 parts by mass of polyfunctional oligomer
0.9 part by mass of a photoinitiator
0.9 part by mass of a dispersant
Leveling agent 1.3 parts by mass
1.9 parts by mass of a crosslinking agent
51 parts by mass of a solvent
6.5 parts by mass of thermally expandable microspheres.
In this embodiment, the FeC particles are FeC particles modified by KH 570. The modification method comprises the following steps: FeC particles and KH570 are mixed in an ethanol solvent, uniformly stirred and dried, and the mass percentage of the KH570 modifier in the ethanol solvent is recommended to be 2%. It should be noted that, since there is a subsequent drying step, the ratio of the FeC particles to the ethanol solvent and KH570 is not critical, as long as the FeC particles can be immersed.
Acrylate monomer, multifunctional oligomer, photoinitiator, dispersant, leveling agent, crosslinking agent and solvent are all conventional materials in the field, and can be selected by a person skilled in the art according to actual needs. In this embodiment, the acrylate monomer is acrylic acid, the multifunctional oligomer is an epoxy acrylate oligomer, the photoinitiator is diphenylethanone, the dispersant is glycerol monostearate, the leveling agent is polydimethylsiloxane, the crosslinking agent is DBHP, and the solvent is ethyl acetate.
The particle size of the thermally expandable microspheres in this example is 10 to 60 μm, and it should be noted that it is not possible to unify all the thermally expandable microspheres, and the particle size of the thermally expandable microspheres selected is acceptable as long as it is 10 to 60 μm.
The preparation method of the magnetic thermal viscosity reducing adhesive tape comprises the following preparation processes:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
Claims (12)
1. A magnetic thermal viscosity reducing adhesive tape, characterized in that: the magnetic-thermal viscosity reduction adhesive tape comprises FeC particles, an acrylate monomer, a cross-linking agent, a dispersing agent, a leveling agent, a polyfunctional oligomer/polyfunctional monomer, thermal expansion microspheres, a solvent and a photoinitiator;
wherein the proportion of each component is as follows:
2-4 parts by mass of FeC particles
20-50 parts by mass of acrylate monomer
1 to 30 parts by mass of a polyfunctional oligomer and/or polyfunctional monomer
0.5-2 parts by mass of photoinitiator
0.1 to 2 parts by mass of a dispersant
0.2-2 parts by mass of leveling agent
0.3-2 parts by mass of a crosslinking agent
25-60 parts by mass of solvent
2-10 parts by mass of thermally expandable microspheres.
2. The magnetocaloric visbreaking tape according to claim 1, wherein: the FeC particles are FeC particles modified by KH 570.
3. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the acrylate monomer is butyl acrylate, or ethyl acrylate, or n-octyl acrylate, or isooctyl acrylate (2-EHA), or isooctyl methacrylate (2-EHMA), or dodecyl methacrylate, or methyl acrylate, or methyl methacrylate, or ethyl methacrylate, or n-butyl methacrylate, or vinyl acetate, or styrene, or acrylic acid.
4. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the multifunctional oligomer is epoxy acrylate oligomer or dendritic ether amide multifunctional (methyl) acrylate oligomer;
the multifunctional monomer is dipentaerythritol hexaacrylate, or (5) ethoxylated pentaerythritol tetraacrylate, or dipentaerythritol hexaacrylate.
5. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the photoinitiator is diphenylethanone, or alpha-hydroxyalkyl benzophenone, or bis-benzoyl phenyl phosphine oxide, or benzophenone, or isopropyl thioxanthone.
6. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the dispersing agent is vinyl bis stearamide, or glyceryl monostearate, or glyceryl tristearate, or liquid paraffin, or zinc stearate, or polyethylene wax.
7. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the leveling agent is polydimethylsiloxane, or polymethylphenylsiloxane, or organopolysiloxane with a comb-shaped structure, or UV 360.
8. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the cross-linking agent is DCP, or BPO, or DTBP, or DBHP, or 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide.
9. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the solvent is ethyl acetate, toluene, ethanol or xylene.
10. The magneto-caloric anti-tackiness tape according to claim 1 or 2, characterized in that: the particle size of the thermal expansion microsphere is 10-60 mu m.
11. Method for preparing a magnetocaloric visbreaking tape according to one of claims 1 to 10, characterized in that it is prepared as follows:
s1: mixing FeC particles with KH570 in an ethanol solvent, uniformly stirring and drying for later use;
s2: uniformly mixing FeC particles prepared by S1, an acrylate monomer, a multifunctional oligomer/multifunctional monomer, a photoinitiator, a leveling agent, a crosslinking agent and a solvent, and then preparing a base adhesive under UV irradiation;
s3: adding thermal expansion microspheres and a dispersing agent into the base rubber, and uniformly mixing.
12. The method for preparing the magnetic thermal viscosity reduction type adhesive tape according to claim 11, wherein: the mass percentage content of the KH570 modifier in the ethanol solvent is 2-3%, and the mass percentage content of the KH570 modifier in the ethanol solvent is 2-3%.
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Application publication date: 20200110 |