CN112961629B - Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof - Google Patents
Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof Download PDFInfo
- Publication number
- CN112961629B CN112961629B CN202110172968.2A CN202110172968A CN112961629B CN 112961629 B CN112961629 B CN 112961629B CN 202110172968 A CN202110172968 A CN 202110172968A CN 112961629 B CN112961629 B CN 112961629B
- Authority
- CN
- China
- Prior art keywords
- percent
- component
- acrylate
- emulsion
- starch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/003—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
-
- C—CHEMISTRY; METALLURGY
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an acrylic ester pressure-sensitive adhesive emulsion which can be repeatedly pasted and is particularly applied to sticky notes (Yoshitie and N-time sticky notes) as well as a preparation method and an application thereof, wherein the preparation method comprises the following steps: preparing a mixed monomer A and a mixed monomer B containing an initiator and an anionic emulsifier according to a predetermined proportion, and titrating the mixed monomers A and B into a base material containing a high-molecular emulsifier and an anionic emulsifier respectively at a certain temperature according to a specified time for reaction; the emulsion prepared by the method can be repeatedly peeled and stuck after being applied, the bonding strength cannot be obviously reduced, the peeling and transferring process cannot be degummed, the bonding strength cannot be obviously increased after being pressed for a long time, and the conditions of paper damage caused by overhigh bonding strength in the preparation process and bonded object damage in the application process cannot occur after being applied on a convenient paste.
Description
Technical Field
The invention belongs to the field of polymer synthesis, and particularly relates to an acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted on a sticky note, and a preparation method and application thereof.
Background
The acrylate pressure-sensitive adhesive has the characteristics of environmental protection, simple synthesis method, stable product performance, adjustable application effect and the like, and gradually replaces solvent pressure-sensitive adhesives and rubber pressure-sensitive adhesives, the dosage of the acrylate pressure-sensitive adhesive in the fields of labels, adhesive tapes and the like is gradually enlarged at present, but the acrylate pressure-sensitive adhesive emulsion cannot be effectively separated from a bonding substrate after application, particularly adhesive substances which are easy to fall off, such as paper, walls and the like, the bonding substrate is easy to damage after the pressure-sensitive adhesive is peeled off, the acrylate pressure-sensitive adhesive cannot be used for multiple times, and the application of the acrylate pressure-sensitive adhesive emulsion in many fields is limited. Based on the problems, many improvement researches and inventions are provided at present, but at present, due to the limitation of the preparation technology of the pressure-sensitive adhesive, the application of the pressure-sensitive adhesive is not well solved, particularly, the problems that the pressure-sensitive adhesive can be repeatedly pasted and the bonding strength cannot be obviously reduced, the adhesive is not degummed in the application transfer process, the bonding strength cannot be obviously increased after being pressed for a long time, paper is damaged in the preparation process due to overhigh bonding strength after being pasted and applied on a sticky note, and the bonding object is damaged in the application process are solved, and in addition, the existing synthetic preparation methods all need harsh equipment, so that the problems of difficult production, low product repeatability, unstable quality, low universality of instruments and equipment and the like are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted. The pressure-sensitive adhesive emulsion can be repeatedly peeled and pasted after application, the bonding strength can not be obviously reduced, the peeling and transferring process can not be degummed, the bonding strength can not be obviously increased after being pressed for a long time, the condition that paper is damaged due to overhigh bonding strength in the preparation process and a bonding object is damaged in the application process can not occur after the application of the pressure-sensitive adhesive emulsion on a sticky note, and the pressure-sensitive adhesive emulsion is particularly suitable for being applied to sticky notes such as a premium sticky note and N-time sticky notes.
The invention also aims to provide a preparation method of the acrylate pressure-sensitive adhesive emulsion. The synthesis method has the advantages of simple process, mild conditions, stable prepared product and better application effect than like products.
The invention also aims to provide application of the acrylate pressure-sensitive adhesive emulsion.
The purpose of the invention is realized by the following technical scheme:
an acrylic ester pressure-sensitive adhesive emulsion comprises an emulsion prepared by mixing a component A, a component B and a base material;
the component A comprises the following raw material components in percentage by weight based on the total weight of the component A:
acrylate monomer: 79.5 to 99 percent
Acrylic monomer: 0.2 to 6 percent
Acrylamide-based monomer: 0.2 to 2 percent
Styrene: 1-10%
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent;
the component B comprises the following raw material components in percentage by weight based on the total weight of the component B:
acrylate monomer: 80.5-99%
Acrylic monomer: 0.2 to 8 percent
An acrylamide-based monomer: 0.2 to 4 percent
Styrene: 1 to 5 percent
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent.
The acrylic ester monomers in the A component and the B component are one or more of acrylic ester and methacrylic ester of straight chain or branched chain alcohol with 1-12 carbon atoms; preferably, the acrylate monomer is one or more selected from n-butyl acrylate, isobutyl acrylate, isooctyl acrylate, ethyl acrylate, lauryl acrylate, methyl methacrylate and glycidyl methacrylate; most preferably, the acrylate monomer is mainly composed of isooctyl acrylate, so that the isooctyl acrylate has low glass transition temperature, good wettability to a substrate and high bonding strength.
The acrylic monomer in the component A and the component B can be one or two of acrylic acid and methacrylic acid.
The acrylamide monomer in the component A and the component B can be one or two of acrylamide and N-hydroxymethyl acrylamide.
Preferably, the component A comprises the following raw material components in percentage by weight based on the total weight of the component A:
n-butyl acrylate: 5-10 percent
Isobutyl acrylate: 1 to 5 percent
Isooctyl acrylate: 50 to 80 percent
Ethyl acrylate: 1-10%
Lauryl acrylate: 0.5 to 5 percent
Methyl methacrylate: 1 to 10 percent
Styrene: 1-10%
Methacrylic acid: 0.1 to 3 percent
Acrylic acid: 0.1 to 3 percent
Acrylamide: 0.1 to 1 percent
N-methylolacrylamide: 0.1 to 1 percent
Glycidyl methacrylate: 0.1 to 1 percent
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent;
the component B comprises the following raw material components in percentage by weight based on the total weight of the component B:
n-butyl acrylate: 5-10 percent
Isobutyl acrylate: 1 to 5 percent
Isooctyl acrylate: 70 to 80 percent
Ethyl acrylate: 1 to 5 percent
Lauryl acrylate: 0.5 to 5 percent
Methyl methacrylate: 1 to 5 percent
Styrene: 1 to 5 percent
Methacrylic acid: 0.1-4%
Acrylic acid: 0.1-4%
Acrylamide: 0.1 to 2 percent
N-methylolacrylamide: 0.1 to 2 percent
Glycidyl methacrylate: 0.1 to 2 percent
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent.
The initiator in the component A and the initiator in the component B may be two or more selected from azobisisoheptonitrile, azobisisobutyronitrile and benzoyl peroxide.
The anionic emulsifier in the component A and the component B can be one or two of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
The base material comprises a polymer emulsifier, an anionic emulsifier, a buffering agent and deionized water, wherein the polymer emulsifier accounts for 3-10% of the mass of the whole base material, the anionic emulsifier accounts for 0.5-5% of the mass of the whole base material, the buffering agent accounts for 0.1-4% of the mass of the whole base material, and the deionized water accounts for 81-95% of the mass of the whole base material.
The polymeric emulsifier in the bottom material can be one or more selected from gelatin, sodium polyacrylate, modified starch, polyvinyl alcohol, hydroxymethyl cellulose and carboxymethyl starch.
Preferably, the weight average molecular weight of gelatin in the high molecular emulsifier in the base material is 1000-10000; the sodium polyacrylate in the high molecular emulsifier in the bottom material is a polymer with the weight average molecular weight of 5000-30000; the native starch in the modified starch in the high molecular emulsifier in the bottom material is one or more of tapioca starch, corn starch, wheat starch and potato starch, wherein the modified starch is one or more of oxidized starch, phosphate ester starch and acetate ester starch; the polymerization degree of polyvinyl alcohol in the high molecular emulsifier in the bottom material is 200-3000, and the alcoholysis degree is 70-99%; the etherification degree of hydroxymethyl cellulose in the high molecular emulsifier in the bottom material is 0.1-1.0; the etherification degree of carboxymethyl starch in the high molecular emulsifier in the bottom material is 0.1-0.6.
The anionic emulsifier in the base material can be one or two of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
The buffer in the base material can be one or more selected from sodium carbonate, sodium bicarbonate, sodium acetate, and sodium dihydrogen phosphate.
Preferably, the mass ratio of the component A to the component B to the backing material is 1.
A preparation method of the acrylic ester pressure-sensitive adhesive emulsion adopts a free radical polymerization mode, firstly drops a component A into a base material at a certain reaction temperature and a certain stirring speed within a preset time, then drops a component B within a preset time, and prepares an emulsion product with stable performance after free radical polymerization; the monomer raw materials are divided into a component A monomer solution and a component B monomer solution, the formula proportion of the component A monomer solution and the component B monomer solution is different, and the monomers are sequentially added, so that the core-shell emulsion particles with hard cores and soft shells can be prepared, the emulsion film forming temperature is reduced under the same monomer dosage, the wettability of the pressure-sensitive adhesive after film forming is enhanced, and the application performance which can not be achieved by a single component can be achieved.
In the invention, the reaction temperature in the feeding process of the component A is 60-85 ℃, the stirring speed is 50-200rpm, and the feeding time is 40-90min.
Preferably, the reaction temperature during the feeding of the component A is 65-75 ℃, the stirring speed is 70-150rpm, and the feeding time is 60-80min.
In the invention, the reaction temperature in the feeding process of the component B is 60-85 ℃, the stirring speed is 50-200rpm, and the feeding time is 90-240min.
Preferably, the reaction temperature during the feeding of the component B is 65-75 ℃, the stirring speed is 70-150rpm, and the feeding time is 120-180min.
The application of the acrylic ester pressure-sensitive adhesive emulsion is to be used on sticky notes such as Ushi stickers and N-time stickers.
The base paper quantitative range of the pressure-sensitive adhesive emulsion prepared in the invention in the application of the pressure-sensitive adhesive emulsion in the sticky note is 70-120g/m 2 The paper is double-sided sized paper, the sizing degree is 0.75-1.5, and the 180-degree peel strength of the sticky note after application is higher than 1.8N/mm 2 The number of application times of the sticky note on the clean glass is not less than 100, and the sticky note 24h after application has no problem of edge warping.
Detailed Description
For a further understanding of the invention, preferred embodiments of the invention are described below in conjunction with the examples, but these descriptions are intended to further illustrate the features and advantages of the invention, rather than to limit the claims of the invention, which are further detailed below by way of the examples.
Example 1: preparing a repeatedly-pasted acrylic ester pressure-sensitive adhesive emulsion:
firstly, preparing raw materials of a component A monomer mixed solution, a component B monomer mixed solution and a backing material;
the component A monomer mixed solution comprises the following raw material components in percentage by weight based on the total weight of the component A:
n-butyl acrylate: 9 percent
Isobutyl acrylate: 4 percent of
Isooctyl acrylate: 72 percent
Ethyl acrylate: 3 percent
Lauryl acrylate: 3 percent
Methyl methacrylate: 4 percent of
Styrene: 1.5 percent
Methacrylic acid: 0.5 percent
Acrylic acid: 0.5 percent
Acrylamide: 0.5 percent
N-methylolacrylamide: 0.5 percent
Glycidyl methacrylate: 0.4 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.6 percent;
the initiator in the component A is a mixture of azodiisobutyronitrile and benzoyl peroxide, and the mass ratio is 1; the anionic emulsifier is sodium dodecyl benzene sulfonate;
the component B monomer mixed solution comprises the following raw material components in percentage by weight based on the total weight of the component B:
n-butyl acrylate: 8 percent
Isobutyl acrylate: 2 percent of
Isooctyl acrylate: 78 percent of
Ethyl acrylate: 2 percent of
Lauryl acrylate: 2 percent of
Methyl methacrylate: 2 percent of
Styrene: 2 percent of
Methacrylic acid: 0.5 percent
Acrylic acid: 1 percent of
Acrylamide: 0.4 percent
N-methylolacrylamide: 0.6 percent
Glycidyl methacrylate: 0.5 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.5 percent;
the initiator in the component B is a mixture of azodiisobutyronitrile and benzoyl peroxide, and the mass ratio is 1; the anionic emulsifier is sodium dodecyl benzene sulfonate;
the base material comprises the following components in percentage by weight:
high-molecular emulsifier: 6 percent of
Anionic emulsifiers: 0.8 percent
Buffering agent: 0.4 percent
Deionized water: 92.8 percent;
the high molecular emulsifier in the bottom material is polyvinyl alcohol PVA1799, the polymerization degree is 1700, and the alcoholysis degree is 99%; the anionic emulsifier is sodium dodecyl benzene sulfonate; the buffer is sodium bicarbonate;
in the embodiment, the mass ratio of the component A to the component B to the backing material is 1;
then, the component A is added into the backing material in a dropwise manner while stirring, the reaction temperature in the feeding process is 75 ℃, the stirring speed is 80rpm, and the feeding time is 70min; finally, dripping the component B, wherein the reaction temperature in the feeding process is 70 ℃, the stirring speed is 100rpm, the feeding time is 160min, and obtaining the acrylate pressure-sensitive adhesive emulsion through free radical polymerization.
The test method comprises the following steps:
sizing degree: measuring the sizing degree of the paper according to the GB-T460-2008 standard; peel strength: the peel strength was measured according to GB/T2792-1998; the number of times of pasting is as follows: repeatedly sticking a core page of the plaster on glass or a table top without oil stain, water and dust for 100 times, wherein the core page is firmly stuck and does not fall off after 100 times.
The emulsion prepared in this example was used at a basis weight of 100g/m 2 The sizing degree of the double-sided offset paper is 0.75; the 180-degree peel strength of the sticky note after application is higher than 7.5N/mm 2 The number of application times of the sticky note on the clean glass is not less than 100, the sticky note is qualified, and the sticky note 24 hours after application has no problem of edge warping.
Example 2: the process steps and test methods of this example are the same as example 1, except that the following raw materials are used:
the component A monomer mixed solution comprises the following raw material components in percentage by weight based on the total weight of the component A:
n-butyl acrylate: 10 percent of
Isobutyl acrylate: 3 percent of
Isooctyl acrylate: 75 percent of
Ethyl acrylate: 3 percent of
Lauryl acrylate: 2 percent of
Methyl methacrylate: 2 percent
Styrene: 1.5 percent
Methacrylic acid: 0.5 percent
Acrylic acid: 0.5 percent
Acrylamide: 0.5 percent
N-methylolacrylamide: 0.5 percent
Glycidyl methacrylate: 0.4 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.6 percent;
the initiator in the component A is a mixture of azodiisobutyronitrile and benzoyl peroxide, and the mass ratio is 1.5; the anionic emulsifier is sodium dodecyl sulfate;
the monomer mixed solution of the component B comprises the following raw material components in percentage by weight based on the total weight of the component B:
n-butyl acrylate: 6 percent of
Isobutyl acrylate: 2 percent
Isooctyl acrylate: 80 percent
Ethyl acrylate: 2 percent
Lauryl acrylate: 2 percent
Methyl methacrylate: 2 percent of
Styrene: 2 percent of
Methacrylic acid: 0.5 percent
Acrylic acid: 1 percent of
Acrylamide: 0.4 percent
N-methylolacrylamide: 0.6 percent
Glycidyl methacrylate: 0.5 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.5 percent.
The initiator in the component B is a mixture of azodiisobutyronitrile and benzoyl peroxide, and the mass ratio is 1; the anionic emulsifier is sodium dodecyl sulfate;
the base material comprises the following components in percentage by weight:
high-molecular emulsifier: 6.5 percent
Anionic emulsifiers: 1.2 percent of
Buffering agent: 0.4 percent
Deionized water: 91.9 percent;
the high molecular emulsifier in the bottom material is polyvinyl alcohol PVA1788, the polymerization degree is 1700, and the alcoholysis degree is 88%; the anionic emulsifier is sodium dodecyl sulfate; the buffer is sodium bicarbonate;
in the embodiment, the mass ratio of the component A to the component B to the backing material is 1;
the emulsion prepared in this example was used at a basis weight of 100g/m 2 The degree of sizing on the double-sided adhesive tape is 0.75, and the 180-degree peel strength of the sticky note after application is higher than 10.2N/mm 2 The number of times of application on clean glass is not less than 100, and the sticky note is qualified, and the sticky note does not have the problem of edge warping after 24 hours of application.
Example 3: the process steps and test methods of this example are the same as example 1, except that the following raw materials are used:
the component A monomer mixed solution comprises the following raw material components in percentage by weight based on the total weight of the component A:
n-butyl acrylate: 10 percent
Isobutyl acrylate: 5 percent of
Isooctyl acrylate: 70 percent
Ethyl acrylate: 3 percent of
Lauryl acrylate: 3 percent of
Methyl methacrylate: 3 percent
Styrene: 2.5 percent
Methacrylic acid: 0.5 percent
Acrylic acid: 0.5 percent
Acrylamide: 0.5 percent
N-methylolacrylamide: 0.5 percent
Glycidyl methacrylate: 0.4 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.6 percent;
in the component A, the initiator is a mixture of azodiisoheptonitrile and benzoyl peroxide, and the mass ratio is 1; the anionic emulsifier is sodium dodecyl sulfate;
the monomer mixed solution of the component B comprises the following raw material components in percentage by weight based on the total weight of the component B:
n-butyl acrylate: 8 percent of
Isobutyl acrylate: 2 percent of
Isooctyl acrylate: 78 percent
Ethyl acrylate: 2 percent
Lauryl acrylate: 2 percent of
Methyl methacrylate: 2 percent
Styrene: 2 percent of
Methacrylic acid: 0.5 percent
Acrylic acid: 1 percent of
Acrylamide: 0.4 percent
N-methylolacrylamide: 0.6 percent
Glycidyl methacrylate: 0.5 percent
Initiator: 0.5 percent
Anionic emulsifiers: 0.5 percent;
in the component B, the initiator is a mixture of azodiisoheptonitrile and benzoyl peroxide, and the mass ratio is 1; the anionic emulsifier is sodium dodecyl sulfate;
the base material comprises the following components in percentage by weight:
a polymer emulsifier: 7.0 percent
Anionic emulsifiers: 1.0 percent
Buffering agent: 0.4 percent
Deionized water: 91.6 percent;
the high molecular emulsifier in the bottom material is polyvinyl alcohol PVA2488, the polymerization degree is 2400, and the alcoholysis degree is 88%; the anionic emulsifier is sodium dodecyl sulfate; the buffer is sodium bicarbonate;
in the embodiment, the mass ratio of the component A to the component B to the backing material is 1.2;
the emulsion prepared in this example was used at a basis weight of 100g/m 2 The degree of sizing on the double-sided adhesive tape is 1.0, and the 180-degree peel strength of the sticky note after application is higher than 12.5N/mm 2 The number of application times of the sticky note on the clean glass is not less than 100, the sticky note is qualified, and the sticky note 24 hours after application has no problem of edge warping.
It should be noted by those skilled in the art that the described embodiments of the present invention are merely exemplary and that various other substitutions, alterations, and modifications may be made within the scope of the present invention. Accordingly, the present invention is not limited to the above-described embodiments, but is only limited by the claims.
Claims (11)
1. The repeatedly-stickable acrylate pressure-sensitive adhesive emulsion comprises an emulsion prepared by mixing a component A, a component B and a backing material, and is characterized in that:
the component A comprises the following raw material components in percentage by weight based on the total weight of the component A:
n-butyl acrylate: 5-10%
Isobutyl acrylate: 1 to 5 percent
Isooctyl acrylate: 50 to 75 percent
Ethyl acrylate: 1-10%
Lauryl acrylate: 0.5 to 5 percent
Methyl methacrylate: 1-10%
Styrene: 1 to 10 percent
Methacrylic acid: 0.1 to 3 percent
Acrylic acid: 0.1 to 3 percent
Acrylamide: 0.1 to 1 percent
N-methylolacrylamide: 0.1 to 1 percent
Glycidyl methacrylate: 0.1 to 1 percent
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent;
the component B comprises the following raw material components in percentage by weight based on the total weight of the component B:
n-butyl acrylate: 5-10 percent
Isobutyl acrylate: 1 to 5 percent
Isooctyl acrylate: 78-80%
Ethyl acrylate: 1 to 5 percent
Lauryl acrylate: 0.5 to 5 percent
Methyl methacrylate: 1 to 5 percent
Styrene: 1 to 5 percent
Methacrylic acid: 0.1-4%
Acrylic acid: 0.1 to 4 percent
Acrylamide: 0.1 to 2 percent
N-methylolacrylamide: 0.1 to 2 percent
Glycidyl methacrylate: 0.1 to 2 percent
Initiator: 0.01 to 1.5 percent
Anionic emulsifiers: 0.1 to 1 percent;
the mass ratio of the component A to the component B to the backing material is 1;
the emulsion is prepared by sequentially dripping the component A and the component B into a backing material at a certain reaction temperature, stirring speed and charging time, and carrying out free radical polymerization; the reaction temperature when the component A is dripped is 60-85 ℃, the stirring speed is 50-200rpm, and the charging time is 40-90min; the reaction temperature when the component B is dripped is 60-85 ℃, the stirring speed is 50-200rpm, and the feeding time is 90-240min.
2. The emulsion according to claim 1, wherein the initiator in the component A and the initiator in the component B are two or more selected from the group consisting of azobisisoheptonitrile, azobisisobutyronitrile and benzoyl peroxide.
3. The emulsion according to claim 1, wherein the anionic emulsifier in the component A and the component B is one or two of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
4. The repeatedly-pasted acrylic ester pressure-sensitive adhesive emulsion as claimed in claim 1, wherein the base material comprises the following raw material components in percentage by weight based on the total weight of the base material:
3 to 10 percent of macromolecular emulsifier
Anionic emulsifier 0.5-5%
Buffer 0.1-4%
81-95% of deionized water.
5. The emulsion of claim 4, wherein the polymeric emulsifier in the primer is one or more of gelatin, sodium polyacrylate, modified starch, polyvinyl alcohol, hydroxymethyl cellulose and hydroxymethyl starch.
6. The emulsion of claim 5, wherein the gelatin has a weight average molecular weight of 1000 to 10000;
the weight average molecular weight of the sodium polyacrylate is 5000-30000;
the native starch in the modified starch is one or more of tapioca starch, corn starch, wheat starch and potato starch, and the modified starch is one or more of oxidized starch, phosphate ester starch and acetate ester starch;
the polymerization degree of the polyvinyl alcohol is 200-3000, and the alcoholysis degree is 70-99%;
the etherification degree of the hydroxymethyl cellulose is 0.4-1.0;
the etherification degree of the carboxymethyl starch is 0.1-0.6.
7. The emulsion of claim 4, wherein the anionic emulsifier in the primer is one or two of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
8. The emulsion of claim 4, wherein the buffer in the primer is one or more of sodium carbonate, sodium bicarbonate, sodium acetate, and sodium dihydrogen phosphate.
9. The acrylic ester pressure sensitive adhesive emulsion capable of being repeatedly pasted according to claim 1, wherein the reaction temperature when the component A is dropwise added is 65-75 ℃, the stirring speed is 70-150rpm, and the adding time is 60-80min; the reaction temperature when the component B is dripped is 65-75 ℃, the stirring speed is 70-150rpm, and the feeding time is 120-180min.
10. Use of the acrylate pressure sensitive adhesive emulsion according to any one of claims 1 to 9 in a sticky note.
11. The use of the acrylate pressure sensitive adhesive emulsion of claim 10 in a sticky note, wherein the base paper basis weight range is 70-120g/m 2 The paper is double-sided sized paper, and the sizing degree is 0.75-1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110172968.2A CN112961629B (en) | 2021-02-08 | 2021-02-08 | Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110172968.2A CN112961629B (en) | 2021-02-08 | 2021-02-08 | Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112961629A CN112961629A (en) | 2021-06-15 |
| CN112961629B true CN112961629B (en) | 2023-01-20 |
Family
ID=76275545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110172968.2A Active CN112961629B (en) | 2021-02-08 | 2021-02-08 | Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112961629B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5763555A (en) * | 1996-01-22 | 1998-06-09 | Ashland Inc. | Water-borne acrylic emulsion pressure-sensitive adhesive compositions containing multifunctional monomer having improved stability and removability |
| CN111171765B (en) * | 2020-02-28 | 2021-08-31 | 上海宗特化工有限公司 | Single-component removable water-based pressure-sensitive adhesive and preparation method thereof |
| CN111234726A (en) * | 2020-03-18 | 2020-06-05 | 安徽富印新材料有限公司 | Pressure-sensitive adhesive tape capable of being repeatedly pasted and preparation method thereof |
-
2021
- 2021-02-08 CN CN202110172968.2A patent/CN112961629B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112961629A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0224795B1 (en) | Removable pressure sensitive adhesive | |
| US5240989A (en) | Removable pressure-sensitive adhesive compositions comprising acrylic based emulsion polymers | |
| CN101412783B (en) | Preparation of acrylic ester copolymer emulsion for pressure-sensitive adhesive | |
| EP1023419A2 (en) | Repulpable, pressure-sensitive adhesive composition and method for improving the repulpability of acrylic adhesive | |
| CN113999632A (en) | Water-based acrylate pressure-sensitive adhesive and preparation method thereof | |
| CN108192019B (en) | Acrylic pressure-sensitive adhesive | |
| JPH07196998A (en) | Contact adhesive that can be pulped again | |
| JPH0684490B2 (en) | Removable adhesive composition | |
| CN108795340A (en) | Solvent-type acrylic ester pressure-sensitive, preparation method and the application of a kind of macromolecule and high conversion | |
| CN112961629B (en) | Acrylate pressure-sensitive adhesive emulsion capable of being repeatedly pasted and preparation method and application thereof | |
| CN112391131B (en) | Environment-friendly water-soluble acrylate pressure-sensitive adhesive, adhesive tape and preparation method and application thereof | |
| CN101412782B (en) | Preparation of acrylate polymer emulsion with gradient network structure for pressure-sensitive adhesive | |
| JPS62141081A (en) | Pressure-sensitive adhesive composition comprising ethylene/vinyl acetate/dioctylmaleate terpolymer | |
| KR20190064460A (en) | Pressure-sensitive adhesive sheet | |
| CN211570535U (en) | Ultrathin adhesive tape without base material | |
| JPH0798926B2 (en) | Acrylic adhesive composition | |
| JPS5948047B2 (en) | Copolymer emulsion and pressure-sensitive adhesive containing it as an active ingredient | |
| CN115595077A (en) | Bio-based ultrathin double-sided adhesive | |
| CN114940881A (en) | High-solid low-viscosity pressure-sensitive adhesive for anilox roller | |
| JP4449496B2 (en) | Acrylic copolymer emulsion and emulsion acrylic adhesive | |
| JPH04320475A (en) | Water-dispersed pressure-sensitive adhesive composition | |
| CN114805669B (en) | Poly (meth) acrylate and radiation-crosslinkable hot-melt adhesive based thereon | |
| CN111675977A (en) | Degradable hydrosol protective adhesive film | |
| JP2009155523A (en) | Resin composition and adhesive | |
| CN108676124A (en) | A kind of initial bonding strength is fast and the preparation method of the high acrylic pressure sensitive lotion of peel strength |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |