CN110527464B - High-viscosity yellowing-resistant anti-explosion film glue, adhesive tape and preparation method thereof - Google Patents
High-viscosity yellowing-resistant anti-explosion film glue, adhesive tape and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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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
- 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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- 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
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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
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- 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
Abstract
The invention discloses high-viscosity yellowing-resistant explosion-proof film glue which comprises the following components in parts by weight: 100 parts of acrylic acid glue, 5-10 parts of tackifying resin, 0.15-0.6 part of curing agent and 50-90 parts of solvent; the acrylic acid glue is prepared by reacting the following components in parts by weight: 26-30 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 0.5-1 part of hydroxyethyl acrylate, 5-10 parts of methyl acrylate, 53-65 parts of ethyl acetate and 0.5-1 part of azodiisobutyronitrile; the solvent is selected from one or more of ethyl acetate, toluene and butanone, and the tackifying resin is hydrogenated resin. The invention also provides a high-viscosity yellowing-resistant adhesive tape prepared from the glue. The high-viscosity yellowing-resistant explosion-proof film glue is colorless and transparent in appearance, and can still ensure enough peeling force according to different coating thicknesses; under the condition of high-temperature aging, the appearance is not yellowed, and the stripping force is not attenuated basically.
Description
Technical Field
The invention relates to the technical field of glue, in particular to high-viscosity yellowing-resistant explosion-proof film glue, an adhesive tape and a preparation method thereof.
Background
With the development of the technology, the application range and the usage amount of the display screen are more and more; because the outer layer glass of the display screen is easy to scrape after being used for a long time, and the glass is easy to break under external force and has hidden danger to the safety of users, an explosion-proof membrane for protecting the screen is needed, and the acrylate which is used for playing a role in bonding is an important part in the composition of the explosion-proof membrane. Generally, when the acrylate is high in viscosity, some resin is added, so that the appearance is not colorless and transparent, and the high-temperature yellowing resistance effect is poor. Therefore, a high-viscosity anti-yellowing rupture membrane glue is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing high-viscosity yellowing-resistant explosion-proof membrane glue to solve the defects of low viscosity of acrylate glue, yellow colloid color after high temperature or sunlight irradiation and poor die cutting performance in the prior art.
In order to solve the technical problems, the invention provides high-viscosity yellowing-resistant explosion-proof film glue which is characterized by comprising the following components in parts by weight: 100 parts of acrylic acid glue, 5-10 parts of tackifying resin, 0.15-0.6 part of curing agent and 50-90 parts of solvent;
the acrylic acid glue is prepared by reacting the following components in parts by weight: 26-30 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 0.5-1 part of hydroxyethyl acrylate, 5-10 parts of methyl acrylate, 53-65 parts of ethyl acetate and 0.5-1 part of azodiisobutyronitrile;
the solvent is selected from one or more of ethyl acetate, toluene and butanone, and the tackifying resin is hydrogenated resin.
Further, the curing agent is composed of 0.1-0.5 part of isocyanate curing agent and 0.05-0.1 part of epoxy curing agent.
Further, the hydrogenated resin is a colorless transparent granular perhydrogenated rosin resin.
Further, the reaction conditions are as follows: the reaction temperature is 65-70 ℃, and the reaction time is 10 h.
Further, the solid content of the obtained acrylic acid glue is 35-47%, and the weight-average molecular weight is 50-80 ten thousand.
The invention also provides a high-viscosity yellowing-resistant adhesive tape which comprises a substrate, a glue layer coated on the substrate and a release film attached to the glue layer, wherein the glue layer is obtained by coating the high-viscosity yellowing-resistant anti-explosion film with glue.
Further, the substrate is PET.
The invention also provides a preparation method of the high-viscosity yellowing-resistant adhesive tape, which comprises the following steps: respectively adding the acrylic acid glue, the tackifying resin, the solvent and the curing agent in the formula into a stirring barrel, stirring uniformly, standing for defoaming, coating the mixture on the surface of PET by using a comma scraper process, heating at 80-120 ℃ for 1-5 minutes, drying to obtain a glue layer, then attaching a release film to the surface of the glue layer, and ensuring no bubbles, thereby obtaining the high-viscosity yellowing-resistant adhesive tape.
The invention has the beneficial effects that:
1. according to the high-viscosity yellowing-resistant explosion-proof membrane glue, hydrogenated resin is selected as tackifying resin, unsaturated bonds are avoided, the high-viscosity yellowing-resistant explosion-proof membrane glue has the advantages of light color, excellent oxidation resistance, good heat resistance and the like, and the stripping force can be improved.
2. The high-viscosity yellowing-resistant explosion-proof film glue is colorless and transparent in appearance, and can still ensure enough peeling force according to different coating thicknesses; under the condition of high-temperature aging, the appearance is not yellowed, and the stripping force is not attenuated basically.
3. Compared with the common acrylic glue, the high-viscosity yellowing-resistant explosion-proof membrane glue has the advantages of long synthesis heat preservation time, low initiator residue and high monomer conversion rate of over 99 percent.
Drawings
FIG. 1 is a schematic structural view of one embodiment of the high tack, yellowing resistant adhesive tape of the present invention;
wherein: 1. a PET substrate; 2. a glue layer; 3. and (4) a release film.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example 1
The embodiment provides high-viscosity yellowing-resistant explosion-proof membrane glue which comprises the following components in parts by weight: 100 parts of acrylic glue, 100D 8 parts of hydrogenated rosin pentaerythritol ester, 0.1 part of isocyanate curing agent, 0.05 part of epoxy curing agent, 30 parts of ethyl acetate and 30 parts of toluene.
The acrylic acid glue is prepared by reacting the following components in parts by weight: 26 parts of isooctyl acrylate, 3 parts of acrylic acid, 0.5 part of hydroxyethyl acrylate, 5 parts of methyl acrylate, 65 parts of ethyl acetate and 0.5 part of azobisisobutyronitrile;
the synthesis process of the acrylic acid glue comprises the following steps: the monomer and the solvent (ethyl acetate) are heated to 65-70 ℃, and the initiator (azobisisobutyronitrile) is dripped for 10 hours, so that the acrylic glue with the solid content of 35% and the molecular weight of 50-80 ten thousand can be obtained.
Example 2
The embodiment provides high-viscosity yellowing-resistant explosion-proof membrane glue which comprises the following components in parts by weight: 100 parts of acrylic acid glue, 5100F 8 parts of hydrogenated rosin pentaerythritol ester, 0.5 part of isocyanate curing agent, 0.1 part of epoxy curing agent, 30 parts of ethyl acetate and 30 parts of toluene.
The acrylic acid glue is prepared by reacting the following components in parts by weight: 30 parts of isooctyl acrylate, 5 parts of acrylic acid, 1 part of hydroxyethyl acrylate, 10 parts of methyl acrylate, 53 parts of ethyl acetate and 1 part of azobisisobutyronitrile;
the synthesis process of the acrylic acid glue comprises the following steps: the monomer and the solvent (ethyl acetate) are heated to 65-70 ℃, and the initiator (azobisisobutyronitrile) is dripped for 10 hours, so that the acrylic glue with the solid content of 47% and the molecular weight of 50-80 ten thousand can be obtained.
Example 3
The embodiment provides high-viscosity yellowing-resistant explosion-proof membrane glue which comprises the following components in parts by weight: 100 parts of acrylic glue, 20198 parts of terpene phenol, 0.3 part of isocyanate curing agent, 0.08 part of epoxy curing agent, 30 parts of ethyl acetate and 30 parts of toluene.
The acrylic acid glue is prepared by reacting the following components in parts by weight: 28 parts of isooctyl acrylate, 4 parts of acrylic acid, 0.8 part of hydroxyethyl acrylate, 8 parts of methyl acrylate, 58.4 parts of ethyl acetate and 0.8 part of azobisisobutyronitrile;
the synthesis process of the acrylic acid glue comprises the following steps: the monomer and the solvent (ethyl acetate) are heated to 65-70 ℃, and the initiator (azobisisobutyronitrile) is dripped for 10 hours, so that the acrylic acid glue with the solid content of 41.6 percent and the molecular weight of 50-80 ten thousand can be obtained.
Example 4
Respectively adding the acrylic acid glue, the tackifying resin, the solvent and the curing agent in the embodiments 1-3 into a stirring barrel, stirring for 1 hour uniformly, standing for defoaming, coating on the surface of PET by using a comma scraper process, heating at 95-100 ℃ for 3 minutes, drying to obtain a glue layer, and then attaching the surface of the glue layer by using a release film to ensure that no bubbles exist, thereby obtaining the high-viscosity yellowing-resistant adhesive tape.
Physical property test:
the tape was tested for peel force according to the method specified in ASTM D3330, for light transmittance and haze according to the method specified in ASTM D1003, for holding power according to the method specified in GB/T4851-2014, and for L, A, B values according to the reference standard: ISO7724, where Δ E is the total difference in color chroma, calculated from the L, A, B values. L, A, B are colorimetric values representing the colors of the object, and formula for calculating the color difference value
The results obtained are shown in tables 1-2.
TABLE 1 physical Properties of the high tack yellowing resistant tapes prepared in examples 1-3
| Example 1 | Example 2 | Example 3 | |
| Peeling force | >2000g/25mm | 1400-1600g/25mm | >2000g/25mm |
| Light transmittance | 91.7％ | 91.1％ | 90.7％ |
| Haze degree | 0.5％ | 3.25％ | 1.56％ |
TABLE 2 weather resistance of the high tack yellowing resistant adhesive tape prepared in example 1
As can be seen from tables 1-2, the hydrogenated rosin pentaerythritol ester with the type number of 100D is selected as the tackifying resin, and the obtained yellowing-resistant adhesive tape has the best physical property parameters, the highest light transmittance and the lowest haze. The high-viscosity yellowing-resistant adhesive tape in example 1 still maintains high peeling force, retention rate and light transmittance under various severe conditions, and has low haze, small delta E value and good yellowing resistance.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (5)
1. The high-viscosity yellowing-resistant explosion-proof film glue is characterized by comprising the following components in parts by weight: 100 parts of acrylic acid glue, 5-10 parts of tackifying resin, 0.15-0.6 part of curing agent and 50-90 parts of solvent;
the acrylic acid glue is prepared by reacting the following components in parts by weight: 26-30 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 0.5-1 part of hydroxyethyl acrylate, 5-10 parts of methyl acrylate, 53-65 parts of ethyl acetate and 0.5-1 part of azodiisobutyronitrile;
the solvent is selected from one or more of ethyl acetate, toluene and butanone, and the tackifying resin is hydrogenated rosin pentaerythritol ester 100D; the curing agent consists of 0.1-0.5 part of isocyanate curing agent and 0.05-0.1 part of epoxy curing agent; the solid content of the obtained acrylic acid glue is 35-47%, and the weight-average molecular weight is 50-80 ten thousand.
2. The high-viscosity yellowing-resistant explosion-proof membrane glue according to claim 1, wherein the reaction conditions are as follows: the reaction temperature is 65-70 ℃, and the reaction time is 10 h.
3. The high-viscosity yellowing-resistant adhesive tape comprises a substrate, a glue layer coated on the substrate and a release film attached to the glue layer, and is characterized in that the glue layer is obtained by coating the high-viscosity yellowing-resistant anti-explosion film of claim 1 or 2 with the glue.
4. The high tack yellowing resistant tape according to claim 3, wherein the substrate is PET.
5. A method for preparing the high viscosity anti-yellowing adhesive tape according to claim 3 or 4, comprising the following steps:
respectively adding acrylic acid glue, tackifying resin, solvent and curing agent into a stirring barrel, stirring uniformly, standing for defoaming, coating the mixture on the surface of a base material by using a comma scraper process, and heating for 1-5 minutes at 80-120 ℃ to dry to obtain a glue layer; and then, adhering a release film to the surface of the glue layer to ensure that no air bubbles exist, thus obtaining the high-viscosity yellowing-resistant adhesive tape.
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| CN111560222A (en) * | 2020-05-19 | 2020-08-21 | 安徽格林开思茂光电科技股份有限公司 | High-performance chemical corrosion resistant adhesive tape |
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| JP5598743B2 (en) * | 2009-01-27 | 2014-10-01 | 荒川化学工業株式会社 | Tackifier, adhesive / adhesive composition, acrylic adhesive / adhesive composition, and acrylic active energy ray-curable adhesive / adhesive composition |
| CN102732176B (en) * | 2012-07-06 | 2014-04-09 | 中国航空工业集团公司北京航空材料研究院 | Peelable polyacrylate pressure-sensitive adhesive film with controllable peeling force |
| KR20150088437A (en) * | 2014-01-24 | 2015-08-03 | 한화첨단소재 주식회사 | Adhesive composition with thermosetting property and coverlay film using the same |
| KR101816966B1 (en) * | 2014-08-04 | 2018-01-09 | 주식회사 엘지화학 | Pressure sensitive adhesive composition |
| CN104798772B (en) * | 2015-03-13 | 2017-05-24 | 中国农业科学院农业环境与可持续发展研究所 | Pesticide nano-solid dispersion and preparation method thereof |
| CN106590459A (en) * | 2016-12-23 | 2017-04-26 | 苏州赛伍应用技术有限公司 | High temperature-resistant adhesive tape used for photovoltaic assembly battery piece positioning, and production method thereof |
| CN106753080A (en) * | 2017-01-13 | 2017-05-31 | 上海英诺威新材料科技有限公司 | Refractory metal plate diaphragm pressure sensitive adhesive and preparation method thereof |
| CN106893510A (en) * | 2017-03-01 | 2017-06-27 | 苏州赛伍应用技术有限公司 | A kind of photovoltaic component back plate preparation method of high-performance repair sheets band |
| CN108913050A (en) * | 2018-08-27 | 2018-11-30 | 惠州瑞德新材料科技股份有限公司 | A kind of high viscosity optical double-sided adhesive tape band production method |
| CN109294475B (en) * | 2018-08-29 | 2021-11-12 | 苏州赛伍应用技术股份有限公司 | Water-blocking adhesive tape for photovoltaic module frame and preparation method and application thereof |
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