CN109401690A - A kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive and preparation method thereof - Google Patents
A kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive and preparation method thereof Download PDFInfo
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- CN109401690A CN109401690A CN201811271354.4A CN201811271354A CN109401690A CN 109401690 A CN109401690 A CN 109401690A CN 201811271354 A CN201811271354 A CN 201811271354A CN 109401690 A CN109401690 A CN 109401690A
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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
- C09J133/24—Homopolymers or copolymers of amides or imides
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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
- 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
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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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
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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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
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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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
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- 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
- C08F220/1818—C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesives and preparation method thereof.The raw material of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive of the invention includes two components of A, B by weight percentage, the component A includes: soft monomer 30-35%, function monomer 3-6%, cross-linking monomer 2-4%, deionized water 60%, and accounts for the soft monomer, the initiator of function monomer and cross-linking monomer gross mass 0.2-0.5%, 0.4-1%, 0.4-0.8%, anion emulsifier, non-anion emulsifier respectively；The B component is polyfunctional epoxy resin, the 0.5-3% of Zhan Suoshu component A total weight.Pressure sensitive adhesive peeling force 500-600g of the invention, low VOC, gluing alternate product is without mist residual after being removed by maxxaedium, and bonding skin is without allergic reaction, it may also be used for medical procedure is finely protected.
Description
Technical field
The present invention relates to pressure sensitive adhesive fields, and in particular to a kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive and its system
Preparation Method.
Background technique
The full name of pressure sensitive adhesive is pressure-sensitive adhesive, is commonly called as adhesive sticker, its bonding process is very convenient, as long as
It slightly pressure or is gently pressed with finger and can be carried out bonding, and do not need very big pressure, heating in this course
Or the effect of solvent.Therefore it is most wide dosage maximum, application range in adhesive to be had become with its unique performance and feature
Product, product is throughout every field such as packaging, automobile, transport, communication, electric appliance, building materials, machinery, aviation, light industry, health.Phase
For comparing solvent pressure-sensitive adhesive, water-borne pressure sensitive adhesive not only has the advantages of low VOC, environmentally protective, simple production process, and
Easily aggregate into the pressure sensitive adhesive of larger molecular weight and stronger cohesive strength.Therefore, it is gradually being substituted in high-grade pressure sensitive adhesive product
Solvent pressure-sensitive adhesive.
Polyacrylate pressure sensitive adhesive due to be formulated simple, bonding range is wide, weatherability is good, light resistance is strong, oil resistivity is excellent,
Water-tolerant, wetability be good, there is no phenomena such as mutually separating and migrate and easy to operate, and the more low reason of price becomes pressure
Major product with fastest developing speed, product are widely used in medical adhesive tape in quick glue.But it is with short chain acrylates monomer
Main pressure sensitive adhesive haves the shortcomings that the viscosity of skin has certain limitation and molecule inner injection intensity not big enough.
Summary of the invention
To solve the problems of the prior art, the present invention provide a kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive and
Preparation method.
The raw material of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive of the invention includes A, B two by weight percentage
Component；
The component A includes: soft monomer 30-35%, function monomer 3-6%, cross-linking monomer 2-4%, deionized water 60%,
And drawing for the soft monomer, function monomer and cross-linking monomer total weight 0.2-0.5%, 0.4-1%, 0.4-0.8% is accounted for respectively
Send out agent, anion emulsifier, non-anion emulsifier；
The B component is polyfunctional epoxy resin, the 0.5-3% of Zhan Suoshu component A total weight.
Wherein, the soft monomer is isodecyl methacrylate, isodecyl acrylate, stearic acid acrylate, acrylic acid
At least one of butyl ester and acrylic acid isooctyl.
In addition, the function monomer is itaconic acid.
In addition, the cross-linking monomer is N, N- methylene-bisacrylamide, N hydroxymethyl acrylamide and methacrylic acid
At least one of ureaformaldehyde base ethyl ester.
In addition, the initiator is bis- (2- amidine propane) dihydrochlorides of 2,2- azo.
In addition, the anion emulsifier is lauryl sodium sulfate.
In addition, the non-anion emulsifier is six stearate of polyoxyethylene ether sorbierite.
In addition, the polyfunctional epoxy resin is 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester, aqueous ring
One of oxygen resin 6006-W-68A and aqueous epoxy resins 5003-W-55A.
The present invention also provides a kind of preferred waterborne epoxy modified acrylic ester medical pressure sensitive adhesive, the raw material of the component A with
Weight percent meter, comprising:
Soft monomer: butyl acrylate 20%, stearic acid acrylate 12%；
Function monomer: itaconic acid 5%；
Cross-linking monomer: N,N methylene bis acrylamide 3%；
Initiator: bis- (the 2- amidino groups of the 2,2- azo of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.3%
Propane) dihydrochloride；
Anion emulsifier: the dodecyl sulphate of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.7%
Sodium；
Nonionic emulsifier: the polyoxyethylene ether of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.6%
Six stearate of sorbierite；
The raw material of the B component is the aqueous epoxy resins 6006-W-68A for accounting for the component A total weight 1.8%.
The present invention also provides a kind of preparation methods of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive comprising Xia Shubu
It is rapid:
(1) soft monomer, function monomer, cross-linking monomer, deionized water, initiator, anion emulsifier, non-anion are weighed
Emulsifier and polyfunctional epoxy resin stir evenly anion emulsifier, nonionic emulsifier and 50-70% deionized water,
It is slowly dropped into the mixture of soft monomer, function monomer and cross-linking monomer, pre-emulsification is made in high-speed stirred 400r/min × 30min
Liquid；
(2) initiator and 10-20% deionized water are stirred evenly, obtains initiator solution；
(3) at 79-82 DEG C, by 40- in the initiator solution of 40-60% in above-mentioned steps (2) and above-mentioned steps (1)
60% pre-emulsion mixing, reacts 30-60min, seed emulsion is made；
(4) by remaining pre-emulsion and residue in remaining initiator solution in above-mentioned steps (2), above-mentioned steps (1)
Deionized water be uniformly mixed, instill seed emulsion in, time for adding 1.5-2.5h, after completion of dropwise addition, keep the temperature 2h after, cooling
Component A is made in discharging；
(5) raw material of B component is added in above-mentioned component A, is uniformly mixed, it is medical that waterborne epoxy modified acrylic ester is made
Pressure sensitive adhesive.
The present invention is lower by the glass transition temperature for being designed to deal with adhesive of main monomer formula, and glue-line is soft to ask
Topic can fill the rough surfaces such as the lines of skin, improve the bond properties of skin and product.On the other hand, it introduces multifunctional
Group's epoxy resin reacts on molecular structure with the carboxyl functional group in itaconic acid, forms intensive reticular structure, avoids
Adhesive excessive soft and caused by cohesive strength it is inadequate.Therefore, this product not only there is preferable initial adhesion force, hold viscous force and
Cementability conservation rate, and peeling force strength control, in 500-600g, adhesive article remains after being removed by maxxaedium without mist,
Skin is bonded without allergic reaction.The pressure sensitive adhesive product can also be coated on PE, PU film and non-woven fabrics base material, and applicability is wide
It is general.
Specific embodiment
The content that the present invention is furture elucidated With reference to embodiment, it should be understood that described herein preferred
Embodiment is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Raw material of the invention is that market can obtain product.As an example, some materials in the present invention use such as low-grades
Board: aqueous epoxy resins 6006-W-68A and aqueous epoxy resins 5003-W-55A is all made of Guangzhou Gao Yun Chemical Co., Ltd.
EPIKOTE-6006-W-68A and EPIKOTE-5003-W-55A；4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester
Using one hundred Hongxin Technology Co., Ltd. TDE-85 of Shandong.
Embodiment 1
(1) 15g acrylic acid isooctyl, 15g isodecyl methacrylate, 6g itaconic acid, 4gN- methylol acryloyl are weighed
Bis- (2- amidine propane) dihydrochlorides of amine, 60g deionized water, 0.2g 2,2- azo, 0.4g lauryl sodium sulfate, 0.4g
Six stearate of polyoxyethylene ether sorbierite and 0.5g 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester.
By 0.4g lauryl sodium sulfate, six stearate of 0.4g polyoxyethylene ether sorbierite and 30g (50%) deionization
Water stirs evenly, and is slowly dropped into 15g acrylic acid isooctyl, 15g isodecyl methacrylate, 6g itaconic acid and 4gN- methylol third
Pre-emulsion is made in the mixture of acrylamide, high-speed stirred 400r/min × 30min；
(2) by 0.2g 2, bis- (2- amidine propane) dihydrochlorides of 2- azo and 6g (10%) deionized water are stirred evenly,
Obtain initiator solution；
It (3), will be in above-mentioned steps (2) in 2.48g (40%) initiator solution and above-mentioned steps (1) at 79 DEG C
Seed emulsion is made in the mixing of 28.32g (40%) pre-emulsion, reaction time 30min；
(4) remaining 42.48g in 3.72g initiator solution remaining in above-mentioned steps (2), above-mentioned steps (1) is pre-
Emulsion and remaining 24g deionized water after mixing, instill in seed emulsion, time for adding 1.5h, after completion of dropwise addition,
2h is kept the temperature, component A is made in cooling discharge；
(5) above-mentioned component A is added in the 0.5g 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester of B component
In, it is uniformly mixed, waterborne epoxy modified acrylic ester medical pressure sensitive adhesive is made.
Embodiment 2
(1) weigh 20g butyl acrylate, 15g isodecyl acrylate, 3g itaconic acid, 2g methacrylic acid ureaformaldehyde base ethyl ester,
Bis- (2- amidine propane) dihydrochlorides of 60g deionized water, 0.5g 2,2- azo, 1g lauryl sodium sulfate, 0.8g polyoxy second
Six stearate of alkene ether sorbierite and 3g 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester.
By 1g lauryl sodium sulfate, six stearate of 0.8g polyoxyethylene ether sorbierite and 42g (70%) deionized water
It stirs evenly, is slowly dropped into 20g butyl acrylate, 15g isodecyl acrylate, 3g itaconic acid and 2g methacrylic acid ureaformaldehyde base second
Pre-emulsion is made in the mixture of ester, high-speed stirred 400r/min × 30min；
(2) bis- (2- amidine propane) dihydrochlorides of 0.5g 2,2- azo and 12g (20%) deionized water are stirred equal
It is even, obtain initiator solution；
It (3), will be in above-mentioned steps (2) in 7.5g (60%) initiator solution and above-mentioned steps (1) at 82 DEG C
Seed emulsion is made in the mixing of 50.28g (60%) pre-emulsion, reaction time 60min；
(4) by the pre- cream of 33.52g remaining in 5g initiator solution remaining in above-mentioned steps (2), above-mentioned steps (1)
Change liquid and remaining 6g deionized water after mixing, instill in seed emulsion, time for adding 2.5h, after completion of dropwise addition, protects
Component A is made in warm 2h, cooling discharge；
(5) by the 3g of B component 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester is added in above-mentioned component A,
It is uniformly mixed, waterborne epoxy modified acrylic ester medical pressure sensitive adhesive is made.
Embodiment 3
(1) 20g butyl acrylate, 12g stearic acid acrylate, 5g itaconic acid, 3g N, N- methylene bisacrylamide acyl are weighed
Bis- (2- amidine propane) dihydrochlorides of amine, 60g deionized water, 0.3g 2,2- azo, 0.7g lauryl sodium sulfate, 0.6g
Six stearate of polyoxyethylene ether sorbierite and 1.8g aqueous epoxy resins 6006-W-68A.
By 0.7g lauryl sodium sulfate, six stearate of 0.6g polyoxyethylene ether sorbierite and 36g (60%) deionization
Water stirs evenly, and is slowly dropped into 20g butyl acrylate, 12g stearic acid acrylate, 5g itaconic acid and 3g N, N- di-2-ethylhexylphosphine oxide
Pre-emulsion is made in the mixture of acrylamide, high-speed stirred 400r/min × 30min；
(2) by 0.3g 2, bis- (2- amidine propane) dihydrochlorides of 2- azo and 9g (15%) deionized water are stirred evenly,
Obtain initiator solution；
It (3), will be in above-mentioned steps (2) in 4.65g (50%) initiator solution and above-mentioned steps (1) at 80 DEG C
Seed emulsion is made in the mixing of 38.65g (50%) pre-emulsion, reaction time 45min；
(4) remaining 38.65g in 4.65g initiator solution remaining in above-mentioned steps (2), above-mentioned steps (1) is pre-
Emulsion and remaining 15g deionized water after mixing, instill in seed emulsion, time for adding 2h, after completion of dropwise addition, protect
Component A is made in warm 2h, cooling discharge；
(5) B component 1.8g aqueous epoxy resins 6006-W-68A is added in above-mentioned component A, is uniformly mixed, is made aqueous
Epoxy modification acrylate medical pressure sensitive adhesive.
Embodiment 4
(1) 35g stearic acid acrylate, 3g itaconic acid, 1g N,N methylene bis acrylamide, 1g N- methylol are weighed
Bis- (2- amidine propane) dihydrochlorides of acrylamide, 60g deionized water, 0.2g 2,2- azo, 0.4g dodecyl sulphate
Sodium, six stearate of 0.4g polyoxyethylene ether sorbierite and 0.5g aqueous epoxy resins 5003-W-55A.
By 0.4g lauryl sodium sulfate, six stearate of 0.4g polyoxyethylene ether sorbierite and 30g (50%) deionization
Water stirs evenly, and is slowly dropped into 35g stearic acid acrylate, 3g itaconic acid, 1g N, N- methylene-bisacrylamide and 1g N-
Pre-emulsion is made in the mixture of hydroxymethyl acrylamide, high-speed stirred 400r/min × 30min；
(2) by 0.2g 2, bis- (2- amidine propane) dihydrochlorides of 2- azo and 6g (10%) deionized water are stirred evenly,
Obtain initiator solution；
It (3), will be in above-mentioned steps (2) in 2.48g (40%) initiator solution and above-mentioned steps (1) at 79 DEG C
Seed emulsion is made in the mixing of 28.32g (40%) pre-emulsion, reaction time 30min；
(4) remaining 42.48g in 3.72g initiator solution remaining in above-mentioned steps (2), above-mentioned steps (1) is pre-
Emulsion and remaining 24g deionized water after mixing, instill in seed emulsion, time for adding 1.5h, after completion of dropwise addition,
2h is kept the temperature, component A is made in cooling discharge；
(5) B component 0.5g aqueous epoxy resins 5003-W-55A is added in above-mentioned component A, is uniformly mixed, is made aqueous
Epoxy modification acrylate medical pressure sensitive adhesive.
Embodiment 5
(1) 10g butyl acrylate, 20g acrylic acid isooctyl, 6g itaconic acid, 2g N, N- methylene bisacrylamide acyl are weighed
Amine, 2g methacrylic acid ureaformaldehyde base ethyl ester, 60g deionized water, 0.5g2,2- azo bis- (2- amidine propane) dihydrochlorides, 1g
Lauryl sodium sulfate, six stearate of 0.8g polyoxyethylene ether sorbierite and 3g aqueous epoxy resins 5003-W-55A.
By 1g lauryl sodium sulfate, six stearate of 0.8g polyoxyethylene ether sorbierite and 42g (70%) deionized water
It stirs evenly, is slowly dropped into 10g butyl acrylate, 20g acrylic acid isooctyl, 6g itaconic acid, 2g N, N- methylene bisacrylamide acyl
Pre-emulsion is made in the mixture of amine and 2g methacrylic acid ureaformaldehyde base ethyl ester, high-speed stirred 400r/min × 30min；
(2) bis- (2- amidine propane) dihydrochlorides of 0.5g 2,2- azo and 12g (20%) deionized water are stirred equal
It is even, obtain initiator solution；
It (3), will be in above-mentioned steps (2) in 7.5g (60%) initiator solution and above-mentioned steps (1) at 82 DEG C
Seed emulsion is made in the mixing of 50.28g (60%) pre-emulsion, reaction time 60min；
(4) by the pre- cream of 33.52g remaining in 5g initiator solution remaining in above-mentioned steps (2), above-mentioned steps (1)
Change liquid and remaining 6g deionized water after mixing, instill in seed emulsion, time for adding 2.5h, after completion of dropwise addition, protects
Component A is made in warm 2h, cooling discharge；
(5) B component 3g aqueous epoxy resins 5003-W-55A is added in above-mentioned component A, is uniformly mixed, aqueous ring is made
Oxygen modification acrylate medical pressure sensitive adhesive.
Performance test:
180 ° of peeling strength test methods of pressure-sensitive tape are according to GB/T2792-1998.
The test of pressure sensitive adhesive initial adhesion force is measured according to GB/T4582-2002 method.
The test of pressure sensitive adhesive holding power is tested according to GB/T 4851-1998.
(wherein R is 180 ° of peeling forces of adhesive tape, R ' to cementability conservation rate=(R '/R) × 100%
For take off repeatedly patch 10 times after adhesive tape 180 ° of peeling forces.
Performance test is as shown in table 1
Table 1
The peeling force that can be seen that this product from embodiment 1-5 in 500-600g, have preferably survey initial adhesion force, initial adhesion force and
Cementability conservation rate.And the special interior cross-linking monomer N,N methylene bis acrylamide used in embodiment 3 and multi-functional epoxy
Resin EPIKOTE-6006-W-68A makes pressure sensitive adhesive itself not only have stronger cohesive strength, and it is big to hold viscous force, and cementability
Conservation rate is higher, convenient for reusing.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of waterborne epoxy modified acrylic ester medical pressure sensitive adhesive, which is characterized in that the raw material of the pressure sensitive adhesive is with weight hundred
Being divided to than meter includes two components of A, B；
The component A includes: soft monomer 30-35%, function monomer 3-6%, cross-linking monomer 2-4%, deionized water 60%, and
Account for respectively the soft monomer, function monomer and cross-linking monomer total weight 0.2-0.5%, 0.4-1%, 0.4-0.8% initiator,
Anion emulsifier, non-anion emulsifier；
The B component is polyfunctional epoxy resin, the 0.5-3% of Zhan Suoshu component A total weight.
2. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the soft monomer
For in isodecyl methacrylate, isodecyl acrylate, stearic acid acrylate, butyl acrylate and acrylic acid isooctyl extremely
Few one kind.
3. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the function list
Body is itaconic acid.
4. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the crosslinking is single
Body is at least one of N,N methylene bis acrylamide, N hydroxymethyl acrylamide and methacrylic acid ureaformaldehyde base ethyl ester.
5. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the initiator
For bis- (2- amidine propane) dihydrochlorides of 2,2- azo.
6. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the anion
Emulsifier is lauryl sodium sulfate.
7. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that it is described it is non-yin from
Sub- emulsifier is six stearate of polyoxyethylene ether sorbierite.
8. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that described multifunctional
Epoxy resin is 4,5- 7-oxa-bicyclo[4.1.0-1,2- dicarboxylic acid diglycidyl ester, aqueous epoxy resins 6006-W-68A and aqueous
One of epoxy resin 5003-W-55A.
9. waterborne epoxy modified acrylic ester medical pressure sensitive adhesive according to claim 1, which is characterized in that the component A
Raw material by weight percentage, comprising:
Soft monomer: butyl acrylate 20%, stearic acid acrylate 12%；
Function monomer: itaconic acid 5%；
Cross-linking monomer: N,N methylene bis acrylamide 3%；
Initiator: the 2,2- azo of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.3% is bis- (2- amidine propane)
Dihydrochloride；
Anion emulsifier: the lauryl sodium sulfate of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.7%；
Nonionic emulsifier: the polyoxyethylene ether sorb of Zhan Suoshu soft monomer, function monomer and cross-linking monomer total weight 0.6%
Six stearate of alcohol；
The raw material of the B component is the aqueous epoxy resins 6006-W-68A for accounting for the component A total weight 1.8%.
10. a kind of preparation of the waterborne epoxy modified acrylic ester medical pressure sensitive adhesive as described in any one of claim 1-9
Method, which is characterized in that include the following steps:
(1) soft monomer, function monomer, cross-linking monomer, deionized water, initiator, anion emulsifier, non-anion emulsification are weighed
Agent and polyfunctional epoxy resin stir evenly anion emulsifier, nonionic emulsifier and 50-70% deionized water, slowly
The mixture of soft monomer, function monomer and cross-linking monomer is instilled, pre-emulsion is made in high-speed stirred 400r/min × 30min；
(2) initiator and 10-20% deionized water are stirred evenly, obtains initiator solution；
(3) at 79-82 DEG C, by 40-60% in the initiator solution of 40-60% in above-mentioned steps (2) and above-mentioned steps (1)
Pre-emulsion mixing, react 30-60min, be made seed emulsion；
(4) it by remaining pre-emulsion in remaining initiator solution in above-mentioned steps (2), above-mentioned steps (1) and remaining goes
Ionized water after mixing, instills in seed emulsion, time for adding 1.5-2.5h, after completion of dropwise addition, keeps the temperature 2h, cools down out
Component A is made in material；
(5) raw material of B component is added in above-mentioned component A, is uniformly mixed, waterborne epoxy modified acrylic ester medical pressure-sensing is made
Glue.
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Cited By (4)
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| CN111471145A (en) * | 2020-04-23 | 2020-07-31 | 巨石集团有限公司 | Emulsion type epoxy modified acrylate pressure-sensitive adhesive and preparation method and application thereof |
| CN111471126A (en) * | 2020-03-23 | 2020-07-31 | 杭州鹿扬科技有限公司 | Adhesive material for skin and method for producing the same |
| CN112915250A (en) * | 2021-01-29 | 2021-06-08 | 振德医疗用品股份有限公司 | Low-viscosity isolation acrylic pressure-sensitive adhesive for wound surface and preparation method thereof |
| CN115287026A (en) * | 2022-07-07 | 2022-11-04 | 江苏景宏新材料科技有限公司 | Water-based acrylate pressure-sensitive adhesive and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111471126A (en) * | 2020-03-23 | 2020-07-31 | 杭州鹿扬科技有限公司 | Adhesive material for skin and method for producing the same |
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| CN111471145B (en) * | 2020-04-23 | 2023-02-03 | 巨石集团有限公司 | Emulsion type epoxy modified acrylate pressure-sensitive adhesive and preparation method and application thereof |
| CN112915250A (en) * | 2021-01-29 | 2021-06-08 | 振德医疗用品股份有限公司 | Low-viscosity isolation acrylic pressure-sensitive adhesive for wound surface and preparation method thereof |
| CN115287026A (en) * | 2022-07-07 | 2022-11-04 | 江苏景宏新材料科技有限公司 | Water-based acrylate pressure-sensitive adhesive and preparation method thereof |
| CN115287026B (en) * | 2022-07-07 | 2024-04-02 | 江苏景宏新材料科技有限公司 | Water-based acrylate pressure-sensitive adhesive and preparation method thereof |
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