CN113045998A - Non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape - Google Patents
Non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape Download PDFInfo
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- CN113045998A CN113045998A CN202110514086.XA CN202110514086A CN113045998A CN 113045998 A CN113045998 A CN 113045998A CN 202110514086 A CN202110514086 A CN 202110514086A CN 113045998 A CN113045998 A CN 113045998A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
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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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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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
- C09J7/30—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
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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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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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
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to a non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape. The non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape is prepared by coating the following raw materials in parts by weight on a polymer film and baking the polymer film: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent. The inventor of the invention carries out deep research on the components and the performance of the pressure-sensitive adhesive tape, and the non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape obtained by proportioning 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent is coated on a polymer film and is baked to react, has good high-temperature resistance, generates non-uniform refraction, effectively discharges bubbles and realizes bubble-free sticking of the adhesive tape. The application range of the pressure-sensitive adhesive tape can be effectively widened.
Description
Technical Field
The invention relates to the technical field of adhesives and adhesive tapes, in particular to a non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape.
Background
Pressure-sensitive adhesive tapes are widely used in every aspect of life, particularly in industrial production, because of their convenience and rapidity of use. The modern electronic consumer goods use a great amount of pressure-sensitive adhesive tapes as protective films in the production process, so that the adhesive tapes are required to have high temperature resistance, have good air permeability and are easy to tear without adhesive residue after being stuck in a high-temperature furnace. The traditional organic silicon adhesive tape has certain high temperature resistance, but is difficult to ensure that the adhesive tape is easy to tear and generates non-uniform refraction effect.
Disclosure of Invention
Based on this, there is a need for a non-uniform refractive high temperature resistant pressure sensitive adhesive tape. The non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape has good high-temperature resistance, generates non-uniform refraction and can effectively widen the application range of the pressure-sensitive adhesive tape.
In order to solve the above problems, the technical scheme of the invention is as follows:
the invention aims to provide a non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape, which is formed by coating a mixture of the following raw materials in parts by weight on a polymer film and baking the mixture: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent.
In one embodiment, the polymer film is a PET film or a TPU film.
In one embodiment, the first initiator comprises one or more of: BPO, p-toluenesulfonic acid, dibutyltin diacetate, dibutyltin dilaurate, and bismuth carboxylate.
In one embodiment, the vulcanizing agent comprises one or more of: bis-di-tetra, bis-di-penta, BIBP and platinum vulcanizing agent.
In one embodiment, the acrylate prepolymer is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate monomer, 5-30 parts of functional acrylate monomer, 1-15 parts of acrylic acid, 5-25 parts of vinyl acetate, 20-40 parts of toluene, 10-30 parts of ethyl acetate and 0.1-3 parts of second initiator.
In one embodiment, the acrylate monomers include one or more of: butyl acrylate, isooctyl acrylate, ethyl acrylate, and methyl methacrylate; and/or the presence of a gas in the gas,
the functional acrylate monomer includes one or more of: hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, glycidyl methacrylate, and ethyl cyanoacrylate.
In one embodiment, the second initiator comprises one or more of: BPO, lauroyl peroxide.
In one embodiment, the organic silicon prepolymer is prepared from the following raw materials in parts by weight: 1-15 parts of MQ resin, 5-25 parts of silicon rubber, 10-60 parts of toluene, 0-40 parts of dimethylbenzene and 0.01-1 part of catalyst.
In one embodiment, the MQ resin has an M/Q ratio of 0.50 to 0.85.
In one embodiment, the catalyst is one or more of the following: platinum catalyst, ethylenediamine and concentrated sulfuric acid.
The high-temperature-resistant non-uniform refraction pressure-sensitive adhesive tape is prepared by coating the following raw materials in parts by weight on a polymer film and baking the polymer film: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent. The inventor of the invention carries out deep research on the components and the performance of the pressure-sensitive adhesive tape, and the pressure-sensitive adhesive tape obtained by proportioning 3 to 18 parts of acrylate prepolymer, 2 to 17 parts of organic silicon prepolymer, 0.1 to 5 parts of first initiator and 0.1 to 5 parts of vulcanizing agent has good high-temperature resistance, generates non-uniform refraction and can effectively widen the application range of the pressure-sensitive adhesive tape.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the accompanying examples. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the terms "central", "upper", "lower", "bottom", "inner", "outer", and the like, which are used in the present invention, indicate their orientations and positional relationships are merely used to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the invention provides a non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape, which is prepared by coating a mixture of the following raw materials in parts by weight on a polymer film and baking the mixture: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent. In the embodiment, 3-18 parts of acrylate prepolymer, 2-17 parts of organosilicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent are proportioned, so that the obtained pressure-sensitive adhesive tape has good high-temperature resistance, generates non-uniform refraction and can effectively widen the application range of the pressure-sensitive adhesive tape.
In one specific example, the baking temperature is 120-165 ℃. For example, the baking temperature is 120 deg.C, 130 deg.C, 140 deg.C, 150 deg.C, 160 deg.C.
In another specific example, the coating has a thickness of 1 μm to 100 μm. For example, the coating thickness is 1 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, or 90 μm.
As a specific scheme, the non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape is prepared by coating a mixture of the following raw materials in parts by weight on a polymer film and baking the mixture: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent. In the preparation process of the non-uniform refraction high-temperature-resistant pressure-sensitive adhesive tape, the pressure-sensitive adhesive tape with good high-temperature resistance and non-uniform refraction can be obtained by only proportioning 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent.
As some specific parts by weight of the acrylate prepolymer, there may be mentioned, but not limited to, 3 parts, 3.1 parts, 3.5 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts or 18 parts, and any integer or fraction in the range of 3 to 18 parts. As some specific parts by weight of the silicone prepolymer, there may be mentioned, but not limited to, 17 parts, 16.5 parts, 16 parts, 15 parts, 14 parts, 13 parts, 12 parts, 11 parts, 10 parts, 9 parts, 8 parts, 7 parts, 6 parts, 5 parts, 4 parts, 3 parts or 2 parts of any integer or fraction ranging from 2 to 17 parts. As some parts by weight of the first initiator, it may be, but is not limited to, 0.1 part, 0.12 part, 1 part, 1.1 part, 1 part, 1.5 parts, 2 parts, 3 parts, 4 parts, or 5 parts, thus any integer or fraction ranging from 0.1 to 5 parts. As some parts by weight of the vulcanizing agent, it may be, but is not limited to, 0.1 part, 0.12 part, 1 part, 1.1 part, 1 part, 1.5 parts, 2 parts, 3 parts, 4 parts, or 5 parts, thus any integer or fraction ranging from 0.1 to 5 parts. It is understood that the acrylate prepolymer, the silicone prepolymer, the first initiator and the vulcanizing agent may be arbitrarily selected and combined from the above listed weight parts.
Further, as some optional kinds of polymer films, the polymer film is a PET film or a TPU film. As some optional classes of first initiators, the first initiators include one or more of: BPO, p-toluenesulfonic acid, dibutyltin diacetate, dibutyltin dilaurate and bismuth carboxylate; the bismuth carboxylate is preferably bismuth neodecanoate. As some optional classes of curatives, the curatives include one or more of: bis-di-tetra, bis-di-penta, BIBP and platinum vulcanizing agent.
In a specific example, the acrylate prepolymer is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate monomer, 5-30 parts of functional acrylate monomer, 1-15 parts of acrylic acid, 5-25 parts of vinyl acetate, 20-40 parts of toluene, 10-30 parts of ethyl acetate and 0.1-3 parts of second initiator.
In another specific example, the acrylate prepolymer is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate monomer, 5-30 parts of functional acrylate monomer, 1-15 parts of acrylic acid, 5-25 parts of vinyl acetate, 20-40 parts of toluene, 10-30 parts of ethyl acetate and 0.1-3 parts of second initiator.
The preparation method of the acrylate prepolymer comprises the following steps: putting 20-50 parts of acrylate monomer, 5-30 parts of functional acrylate monomer, 1-15 parts of acrylic acid, 5-25 parts of vinyl acetate, 20-40 parts of toluene and 10-30 parts of ethyl acetate into a reaction kettle, and heating to 70-88 ℃. 0.1 to 3 portions of second initiator is dripped in for 2 to 4 hours, and after the dripping is finished, the temperature is kept for 0.5 to 2.0 hours, and then the mixture is cooled and discharged.
Alternatively, the weight part of the acrylate monomer may be, but is not limited to, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts or 50 parts during the preparation of the acrylate prepolymer. The weight parts of the functional acrylate monomer may be, but is not limited to, 5 parts, 10 parts, 15 parts, 18 parts, 20 parts, 22 parts, 25 parts, 28 parts, or 30 parts. The weight part of acrylic acid may be, but is not limited to, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, or 15 parts. The parts by weight of vinyl acetate may be, but is not limited to, 5 parts, 10 parts, 15 parts, 20 parts, or 25 parts. The parts by weight of toluene may be, but is not limited to, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, or 40 parts. The parts by weight of ethyl acetate may be, but is not limited to, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, or 30 parts. The weight parts of the second initiator may be, but is not limited to, 0.1 parts, 0.2 parts, 0.5 parts, 0.8 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, or 5 parts. It is to be understood that the acrylate monomer, functional acrylate monomer, acrylic acid, vinyl acetate, toluene, ethyl acetate, and second initiator may be arbitrarily selected and combined corresponding to the weight parts listed above.
Specifically, the acrylate monomers include one or more of: butyl acrylate, isooctyl acrylate, ethyl acrylate, and methyl methacrylate. The functional acrylate monomer includes one or more of: hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, and ethyl cyanoacrylate. The second initiator comprises one or more of: BPO, lauroyl peroxide.
In a specific example, the organic silicon prepolymer is prepared from the following raw materials in parts by weight: 1-15 parts of MQ resin, 5-25 parts of silicon rubber, 10-60 parts of toluene, 0-40 parts of dimethylbenzene and 0.01-1 part of catalyst.
Further, the organic silicon prepolymer is prepared from the following raw materials in parts by weight: 1-15 parts of MQ resin, 5-25 parts of silicon rubber, 10-60 parts of toluene, 0-40 parts of dimethylbenzene and 0.01-1 part of catalyst.
The preparation method of the organic silicon prepolymer comprises the following steps: putting 1-15 parts of MQ resin, 10-60 parts of toluene, 0-40 parts of dimethylbenzene, 5-25 parts of silicon rubber and 0.01-1 part of catalyst into a reaction kettle, heating to 70-120 ℃, and reacting for 2 hours at the temperature.
Alternatively, the weight parts of the MQ resin may be, but are not limited to, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, or 15 parts during the preparation of the silicone prepolymer. The parts by weight of silicone rubber may be, but is not limited to, 5 parts, 8 parts, 10 parts, 15 parts, 18 parts, 20 parts, 22 parts, or 25 parts. The parts by weight of toluene may be, but is not limited to, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 32 parts, 35 parts, 38 parts, 40 parts, 45 parts, 50 parts, 55 parts, or 60 parts. The part by weight of xylene may be, but is not limited to, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 32 parts, 35 parts, 38 parts, or 40 parts. The parts by weight of the catalyst may be, but is not limited to, 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, or 5 parts. It is understood that the MQ resin, silicone rubber toluene, xylene, and catalyst may be arbitrarily selected and combined corresponding to the parts by weight listed above.
Preferably, the catalyst comprises one or more of: platinum catalyst, ethylenediamine and concentrated sulfuric acid. In addition, the M/Q ratio of the MQ resin is 0.50 to 0.85.
The following are specific examples.
Unless otherwise specified, the starting materials in the following examples are all commercially available.
Example 1
The acrylate prepolymer in the embodiment is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate, and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
The high-temperature-resistant non-uniform-refraction pressure-sensitive adhesive tape in the embodiment is formed by coating a mixture of the following raw materials in parts by weight on a PET film and baking the mixture: 4 parts of acrylate prepolymer, 16 parts of organic silicon prepolymer, 0.1 part of first initiator and 0.1 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Example 2
The acrylate prepolymer in the embodiment is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate, and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
The high-temperature-resistant non-uniform-refraction pressure-sensitive adhesive tape in the embodiment is formed by coating a mixture of the following raw materials in parts by weight on a PET film and baking the mixture: 13 parts of acrylate prepolymer, 7 parts of organic silicon prepolymer, 0.2 part of first initiator and 0.2 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Example 3
The acrylate prepolymer in the embodiment is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate, and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
The high-temperature-resistant non-uniform-refraction pressure-sensitive adhesive tape in the embodiment is formed by coating a mixture of the following raw materials in parts by weight on a PET film and baking the mixture: 3 parts of acrylate prepolymer, 17 parts of organic silicon prepolymer, 0.15 part of first initiator and 0.12 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Example 4
The acrylate prepolymer in the embodiment is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate, and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
The high-temperature-resistant non-uniform-refraction pressure-sensitive adhesive tape in the embodiment is formed by coating a mixture of the following raw materials in parts by weight on a TPU film and baking the mixture: 10 parts of acrylate prepolymer, 10 parts of organic silicon prepolymer, 0.18 part of first initiator and 0.13 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Comparative example 1
The acrylate prepolymer in the comparative example is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
In the comparative example, the adhesive tape is formed by coating a mixture of the following raw materials in parts by weight on a PI film and baking the mixture: 1 part of acrylate prepolymer, 19 parts of organic silicon prepolymer, 0.2 part of first initiator and 0.2 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Comparative example 2
The acrylate prepolymer in the comparative example is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
In the comparative example, the adhesive tape is formed by coating a mixture of the following raw materials in parts by weight on a PI film and baking the mixture: 19 parts of acrylate prepolymer, 1 part of organic silicon prepolymer, 0.2 part of first initiator and 0.2 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Comparative example 3
The acrylate prepolymer in the comparative example is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
In the comparative example, the adhesive tape is formed by coating a mixture of the following raw materials in parts by weight on a PI film and baking the mixture: 0 part of acrylate prepolymer, 20 parts of organic silicon prepolymer, 0.2 part of first initiator and 0.2 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Comparative example 4
The acrylate prepolymer in the comparative example is prepared from the following raw materials, by weight, 25 parts of an acrylate monomer, 5 parts of a functional acrylate monomer, 2 parts of acrylic acid, 8 parts of vinyl acetate, 30 parts of toluene, 30 parts of ethyl acetate and 0.1 part of a second initiator. The acrylate monomer is butyl acrylate, and the functional acrylate monomer is hydroxyethyl methacrylate. The second initiator is BPO.
The organic silicon prepolymer in the embodiment is prepared from the following raw materials in parts by weight: 10 parts of MQ resin, 15 parts of silicon rubber, 20 parts of toluene, 5 parts of xylene and 0.1 part of catalyst. The catalyst is ethylenediamine.
In the comparative example, the adhesive tape is formed by coating a mixture of the following raw materials in parts by weight on a PI film and baking the mixture: 20 parts of acrylate prepolymer, 0 part of organic silicon prepolymer, 0.2 part of first initiator and 0.2 part of vulcanizing agent. The first initiator is BPO and the vulcanizing agent is bis-tetra.
Test example
The adhesive tapes of examples 1 to 4 and comparative examples 1 to 4 were subjected to a 180 degree peel strength test, a haze test, and a peel strength test after 30 minutes of 200 degree high temperature resistance, respectively. The test results are shown in the following table:
from the above test results, the haze of the example products is greater than 60%, which indicates that the non-uniform refraction effect is achieved, and the haze of the comparative example products is less than 50%, which does not achieve the non-uniform refraction effect. The test results of the examples in 200-degree and half-hour resistance show that the adhesive does not deglue after resisting temperature, and -strength is smaller than -strength before resisting temperature, and -strength is easier. The comparative example has higher strength than before heat resistance, even degummed, and poor temperature resistance.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A non-uniform refractive high temperature resistant pressure sensitive adhesive tape, comprising: coating a mixture comprising the following raw materials in parts by weight on a polymer film, and baking to obtain the coating: 3-18 parts of acrylate prepolymer, 2-17 parts of organic silicon prepolymer, 0.1-5 parts of first initiator and 0.1-5 parts of vulcanizing agent.
2. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 1 wherein: the polymer film is a PET film or a TPU film.
3. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 1 wherein: the first initiator comprises one or more of: BPO, p-toluenesulfonic acid, dibutyltin diacetate, dibutyltin dilaurate, and bismuth carboxylate.
4. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 1 wherein: the vulcanizing agent comprises one or more of the following: bis-di-tetra, bis-di-penta, BIBP and platinum vulcanizing agent.
5. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of any one of claims 1-4, wherein: the acrylate prepolymer is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate monomer, 5-30 parts of functional acrylate monomer, 1-15 parts of acrylic acid, 5-25 parts of vinyl acetate, 20-40 parts of toluene, 10-30 parts of ethyl acetate and 0.1-3 parts of second initiator.
6. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 5 wherein: the acrylate monomer includes one or more of: butyl acrylate, isooctyl acrylate, ethyl acrylate, and methyl methacrylate; and/or the presence of a gas in the gas,
the functional acrylate monomer includes one or more of: hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, glycidyl methacrylate, and ethyl cyanoacrylate.
7. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 5 wherein: the second initiator comprises one or more of: BPO, lauroyl peroxide.
8. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of any one of claims 1-4, wherein: the organic silicon prepolymer is prepared from the following raw materials in parts by weight: 1-15 parts of MQ resin, 5-25 parts of silicon rubber, 10-60 parts of toluene, 0-40 parts of dimethylbenzene and 0.01-1 part of catalyst.
9. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 8 wherein: the M/Q ratio of the MQ resin is 0.50-0.85.
10. The non-uniform refractive high temperature resistant pressure sensitive adhesive tape of claim 8 wherein: the catalyst is one or more of the following combinations: platinum catalyst, ethylenediamine and concentrated sulfuric acid.
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| CN105331301A (en) * | 2015-10-16 | 2016-02-17 | 上海晶华胶粘新材料股份有限公司 | High temperature resistant crepe paper adhesive tape used for shoes |
| JP2021021034A (en) * | 2019-07-30 | 2021-02-18 | 王子ホールディングス株式会社 | Adhesive sheet, backlight unit and liquid crystal display device |
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| JPS59145269A (en) * | 1983-02-05 | 1984-08-20 | Nitto Electric Ind Co Ltd | Pressure-sensitive adhesive composition |
| JP2006348208A (en) * | 2005-06-17 | 2006-12-28 | Toyo Ink Mfg Co Ltd | Light diffusing pressure-sensitive adhesive composition and light diffusing pressure-sensitive adhesive sheet using the same |
| CN104204130A (en) * | 2012-04-06 | 2014-12-10 | 日东电工株式会社 | Adhesive composition, adhesive layer, adhesive sheet, surface protective sheet, optical surface-protective sheet, and optical film with surface protective sheet |
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