CN107011478A - A kind of water-borne pressure sensitive adhesive and preparation method thereof - Google Patents
A kind of water-borne pressure sensitive adhesive and preparation method thereof Download PDFInfo
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- CN107011478A CN107011478A CN201610058214.3A CN201610058214A CN107011478A CN 107011478 A CN107011478 A CN 107011478A CN 201610058214 A CN201610058214 A CN 201610058214A CN 107011478 A CN107011478 A CN 107011478A
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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
- C08F220/14—Methyl esters, e.g. methyl (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
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
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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
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
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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
- 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
- C08F220/1803—C3-(meth)acrylate, e.g. (iso)propyl (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
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (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
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
Abstract
The invention discloses a kind of water-borne pressure sensitive adhesive and preparation method thereof, it is characterised in that:It is polymerize in the reactor by following component raw material and is prepared, its composition is as follows by mass percentage：5%-20% alkyl methacrylate, 10%-28% Isooctyl acrylate monomer, 25%-60% alkyl acrylate, 4%-15% tertiary ethylene carbonate, 0.5%-2% hydroxy propyl methacrylate, 1%-2% methacrylic acid, 0.4%-1% acrylic acid, 0.45%-0.9% internal crosslinker, 0.5%-1.5% emulsifying agent, 0.05%-0.2% molecular weight regulator, 0.15%-0.5% initiator, 0.1%-1% aqueous slkali, 0.1%-1% outside cross-linking agent, 15%-50% deionized water.The water-borne pressure sensitive adhesive humidity resistance of the present invention is strong, adhesion strength lasting stability；The preparation method of water-borne pressure sensitive adhesive of the present invention uses stepped charging and heating mode, and reaction is thorough, and reaction product adhesion strength is stable, lasting.
Description
Technical field
The present invention relates to aqueous binders field, more particularly to a kind of water-borne pressure sensitive adhesive and its system for electronic protective film
Preparation Method.
Background technology
Electronic protective film is a kind of protection materials for being used to protect electronic article surface, by substrate layer and pressure-sensitive adhesive layer group
Into.Electronic protective film must possess following characteristic：（1）For being had good tackness by protection materials surface, paste convenient,
In use, diaphragm not alice, do not float, do not fall off；（2）It can repeatedly tear and strip down, can not be left in material surface
Any glue trace；（3）With not reacted by protection materials surface, burn into does not pollute, it is impossible to leave any spot and bad gas
Taste；（4）Sensitive film has good mechanical property, can meet the requirement of secondary operation.（5）Humidity resistance will get well, can be full
The different high temperature of foot, super-humid conditions.
Electronic protective film is mainly solvent-borne type and water-borne pressure sensitive adhesive with pressure sensitive adhesive, and water-borne pressure sensitive adhesive is because with production technology letter
Single, cost is low, it is pollution-free the advantages of, just quickly substitute solvent pressure-sensitive adhesive in high-grade diaphragm glue field.At present, in the market institute
Electronic protective film is generally import with water-borne pressure sensitive adhesive, and cost is higher, and it is poor to concurrently there are humidity resistance, produces bubble, local
Come off, the problems such as adhesion strength increases with the time.Therefore, a kind of wet-heat resisting is developed, the electronic protective film of adhesion strength lasting stability is used
Novel aqueous pressure sensitive adhesive is one of this area urgent problem to be solved.
The content of the invention
In order to solve the problems of the prior art, it is an object of the invention to provide a kind of water-borne pressure sensitive adhesive and its preparation side
Method, the water-borne pressure sensitive adhesive humidity resistance of the invention prepared, excellent solvent resistance, while it is small that there is peeling force to change over time, stripping
No cull is removed, the effect without " shadow ".
To achieve these goals, the technical solution adopted by the present invention：A kind of water-borne pressure sensitive adhesive, it is characterised in that by with
Lower each component raw material polymerize preparation and obtained in the reactor, and its composition is as follows by mass percentage：
Alkyl methacrylate 5%-20%
Isooctyl acrylate monomer 10%-28%
Alkyl acrylate 25%-60%
Tertiary ethylene carbonate 4%-15%
Hydroxy propyl methacrylate 0.5%-2%
Methacrylic acid 1%-2%
Acrylic acid 0.4%-1%
Internal crosslinker 0.45%-0.9%
Emulsifying agent 0.5%-1.5%
Molecular weight regulator 0.05%-0.2%
Initiator 0.15%-0.5%
Aqueous slkali 0.1%-1%
Outside cross-linking agent 0.1%-1%
Deionized water 15%-50%
Wherein, described alkyl methacrylate is methyl methacrylate, EMA, the positive fourth of methacrylic acid
One or more mixtures in ester, described alkyl acrylate is methyl acrylate, ethyl acrylate, the positive fourth of acrylic acid
One or more mixtures in ester, isobutyl acrylate, n-propyl, described tertiary ethylene carbonate is Veova
Any one in 9, Veova 10, Veova 11.
Wherein, described internal crosslinker is DAAM, adipic dihydrazide, acetoacetate methacrylic acid
Any one in the own ester of dihydroxy, hydroxyethyl acrylamide, described emulsifying agent is lauryl sodium sulfate, detergent alkylate
Sodium sulfonate, n nonylphenol polyethylene glycol oxide ether or to any one in octylphenol polyethylene ethylene oxide ether, described molecular weight is adjusted
Section agent is n-dodecyl mercaptan, secondary lauryl mercaptan, tert-dodecylmercaotan, mercaptoethanol, TGA or methylbenzene
Any one in the dimer of ethene, described initiator is any one in ammonium persulfate, potassium peroxydisulfate or sodium peroxydisulfate
Kind, sodium hydroxide solution or ammoniacal liquor that described aqueous slkali is mass fraction 10-20%, described outside cross-linking agent are urea heterocycle tree
Fat crosslinking agent, aziridine crosslinker or polyisocyanate crosslinking agent.
A kind of preparation method of water-borne pressure sensitive adhesive, it is characterised in that comprise the following steps,
S1, the preparation of pre-emulsion：
A, weighs the emulsifying agent for accounting for raw material total amount 0.3-1.0wt%, 0.05-0.2 wt% molecular weight regulator, 10-30wt%'s
Deionized water；
B, takes the emulsifying agent in A in reactor, with deionized water dissolving, after dissolving, adds molecular weight regulator, stir 20-
40min；
C, weighs and accounts for raw material total amount 5-20wt% alkyl methacrylates, 10-28wt% Isooctyl acrylate monomers, 25-60wt%'s
Alkyl acrylate, 4-15wt% tertiary ethylene carbonate, 0.5-2wt% hydroxy propyl methacrylate, 1-2wt% methyl-prop
Olefin(e) acid, 0.4-1wt% acrylic acid, 0.45-0.9wt% internal crosslinker, by alkyl acrylate, tertiary ethylene carbonate, methyl
Hydroxypropyl acrylate, methacrylic acid and acrylic acid mixing, and internal crosslinker is dispersed therein, constitute mix monomer；
D, the Isooctyl acrylate monomer in C is added in dropping funel, and is instilled with certain flow in reactor, after dripping off, with
Same mode is respectively dropped into alkyl methacrylate and mix monomer, continues to stir 30-40min after completion of dropwise addition, obtains
Pre-emulsion；
S2, emulsion polymerization：
A, weighs the initiator for accounting for raw material total amount 0.05-0.15wt%, after deionized water dissolving, is added to initiator dropwise adding tank
In；
B, weighs the seed that pre-emulsion 6-8wt% is accounted in S1 as polymerization, and remaining pre-emulsion is added to monomer dropping groove
In；
C, weighs the initiator for accounting for raw material total amount 0.1-0.35wt%, is 1 with deionized water example in mass ratio：5-1：8 dissolvings, system
Into initiator solution；
D, weighs in the emulsifying agent addition reactor for accounting for raw material total amount 0.2-0.5wt%, with deionized water dissolving, starts agitator
And heat, when question response device temperature rises to 40-50 DEG C, the initiator solution in C is added in reactor；
E, continues to heat, when question response device temperature rises to 70-80 DEG C, the seed of emulsion polymerization in B is added into reactor, now
Polymerisation starts, and blue-fluorescence occurs in emulsion, after question response terminates, and continues to be incubated 20-40min；
F, maintenance reaction temperature opens initiator dropwise adding tank and monomer dropping groove at 80-90 DEG C simultaneously, keeps identical flow velocity
Add in reactor, time for adding is 4-5h, after completion of dropwise addition, continue to react 70-110min at 80-90 DEG C；
G, after reaction terminates, 25-60 DEG C is cooled to by reaction product, is added aqueous slkali and is adjusted pH to be 6-7, addition accounts for raw material total amount
0.1-1wt% outside cross-linking agent, is sufficiently stirred for after 20min, is discharged with strainer filtering.
Wherein, total consumption of the emulsifying agent accounts for raw material total amount 0.5-1.5wt%, and total consumption of the initiator accounts for raw material
Total amount 0.15-0.5wt%, total consumption of the aqueous slkali accounts for raw material total amount 0.1-1wt%, and total consumption of the deionized water accounts for original
Expect total amount 15%-50%.
Wherein, described alkyl methacrylate is methyl methacrylate, EMA, methacrylic acid
One or more mixtures in N-butyl, described alkyl acrylate is methyl acrylate, ethyl acrylate, acrylic acid
One or more mixtures in N-butyl, isobutyl acrylate, n-propyl, described tertiary ethylene carbonate is
Any one in Veova 9, Veova 10, Veova 11.
Wherein, described internal crosslinker is DAAM, adipic dihydrazide, acetoacetate methacrylic acid
One kind in the own ester of dihydroxy, hydroxyethyl acrylamide, described emulsifying agent is lauryl sodium sulfate, DBSA
Sodium, n nonylphenol polyethylene glycol oxide ether or to any one in octylphenol polyethylene ethylene oxide ether, described molecular weight regulator
For n-dodecyl mercaptan, secondary lauryl mercaptan, tert-dodecylmercaotan, mercaptoethanol, TGA or methyl styrene
Dimer in any one, described initiator is ammonium persulfate, potassium peroxydisulfate or sodium peroxydisulfate, and described aqueous slkali is
Mass fraction 10%-20% sodium hydroxide solution or ammoniacal liquor, described outside cross-linking agent is urea heterocycle resin cross-linking agent, and aziridine is handed over
Join agent or polyisocyanate crosslinking agent.
Wherein, described filter screen is 200-300 mesh nylon two-wire filter screens.
It is combined by the monomer with functional group with internal crosslinker, while ensureing that polymerization system is stable, improves pressure
The crosslinking degree and cohesive force of quick glue；Special formula, which is designed, causes polymerization to terminate still active group on rear macromolecular chain,
Outside cross-linking agent is used so that crosslinking degree is further improved, and further participates in remaining small molecular weight polymer in glue
Molecule cross-link, effectively solves cull and " shadow " problem；The synergy of interior outside cross-linking agent so that form molecular network
Chemical bond replaces intermolecular force to increase the effect of external force of bearing, and can be come by adjusting the consumption of outside cross-linking agent
The need for meeting difference.
The use of parents' reactive emulsifier solves the residual of conditional electronic diaphragm pressure sensitive adhesive small molecular emulsifying agent
And migration problem.
The use of molecular weight regulator simultaneously coordinates specific polymerization technique, can effectively control the molecular weight of polymer and divide
Son amount distribution so that the bonding force of electronic protective film pressure sensitive adhesive is more stable and lasting.
Compared with prior art, the beneficial effect that the present invention is realized：The water-borne pressure sensitive adhesive wet-heat resisting of the present invention, adhesion is insisted on
It is stable long；The preparation method of water-borne pressure sensitive adhesive of the present invention uses stepped charging and heating mode, and reaction is thorough, reaction product
Adhesion strength is stable, lasting.
Embodiment
Embodiment one
S1, pre-emulsion preparation
A. methyl methacrylate 46.07g, Isooctyl acrylate monomer 40.23g, methyl acrylate 80.46g, versatic acid ethene are weighed
Ester Veova 9 17.51g, hydroxy propyl methacrylate 2.09g, methacrylic acid 3.7g, acrylic acid 2.175g, diacetone acrylamide
Acid amides 2.65g, dodecyl sodium sulfate 3.2g, n-dodecyl mercaptan 0.19g, deionized water 34.6g, amount to 232.875g,
By methyl acrylate, tertiary ethylene carbonate Veova 9, hydroxy propyl methacrylate, methacrylic acid and acrylic acid mixing, double third
Ketone acrylamide is dispersed therein, and constitutes mix monomer；
B. take the dodecyl sodium sulfate in A to be dissolved in deionized water, reactor is added after dissolving, positive ten are added while stirring
Dialkyl group mercaptan, continues to stir 20min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, methyl methacrylate and mix monomer are separately added into the same way, are continued to stir 30min after dripping off, are obtained pre- breast
Change liquid.
S2, emulsion polymerization
A. pre-emulsion 213.875g is weighed, is added in monomer dropping groove；
B. ammonium persulfate 0.325g, deionized water 20g are weighed, is dissolved ammonium persulfate into after deionized water, initiator drop is transferred to
Plus groove；
C. weigh ammonium persulfate 0.65g to be dissolved in 5g deionized waters, ammonium persulfate aqueous solution is made；
D. weigh dodecyl sodium sulfate 1.61g to be dissolved in 60g deionized waters, added after dissolving in reactor, start stirring simultaneously
Heating, question response device temperature rises to 40-50 DEG C, and the ammonium persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 19g and add reactor, now
Polymerisation starts, when pipe to be condensed is without backflow, continues to be incubated 20min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 70min after 4h, completion of dropwise addition；
G. stop reaction, when question response device is cooled to 25-30 DEG C, adds ammoniacal liquor and adjust pH=6-7, adjusted and added 0.32g's after pH
Aziridine crosslinker, after being sufficiently stirred for, is discharged with 200 mesh nylon two-wire strainer filterings.
Embodiment two
S1, pre-emulsion preparation
A. EMA 16.12g, Isooctyl acrylate monomer 64.49g, ethyl acrylate 140.1g, versatic acid ethene are weighed
Ester 32.24g, hydroxy propyl methacrylate 3.87g, methacrylic acid 4.84g, acrylic acid 3.55g, DAAM
1.45g, n nonylphenol polyethylene glycol oxide ether 2.58g, secondary lauryl mercaptan 0.32g, deionized water 32.24g, are amounted to
301.8g, by ethyl acrylate, tertiary ethylene carbonate, hydroxy propyl methacrylate, methacrylic acid and acrylic acid mixing, double third
Ketone acrylamide is dispersed therein, and constitutes mix monomer；
B. take the polyoxyethylene nonyl phenyl vinethene in A to be dissolved in deionized water, reactor is added after dissolving, is added while stirring
Secondary lauryl mercaptan, continues to stir 30min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, EMA and mix monomer are separately added into the same way, are continued to stir 35min after dripping off, are obtained pre- breast
Change liquid.
S2, emulsion polymerization
A. pre-emulsion 280.8g is weighed, is added in monomer dropping groove；
B. potassium peroxydisulfate 1.29g, deionized water 8.93g are weighed, potassium peroxydisulfate is dissolved in after deionized water, initiator drop is transferred to
Plus groove；
C. weigh potassium peroxydisulfate 0.32g to be dissolved in 1.92g deionized waters, persulfate aqueous solution is made；
D. weigh polyoxyethylene nonyl phenyl vinethene 0.64g to be dissolved in 6.08g deionized waters, added after dissolving in reactor, started
Stir and heat, question response device temperature rises to 40-50 DEG C, the persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 21g and add reactor, now
Polymerisation starts, when pipe to be condensed is without backflow, continues to be incubated 20min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 110min after 5h, completion of dropwise addition；
G. stop reaction, when question response device is cooled to 45-50 DEG C, adds ammoniacal liquor and adjust pH=6-7, adjusted and added 1.93g's after pH
Urea heterocycle resin cross-linking agent, after being sufficiently stirred for, in the discharging of 300 mesh nylon two-wire strainer filterings.
Embodiment three
S1, pre-emulsion preparation
A. n-BMA 16.12g, Isooctyl acrylate monomer 32.24g, n-butyl acrylate 193.46g, tertiary carbon are weighed
Vinyl acetate Veova 9 12.90g, hydroxy propyl methacrylate 1.61g, methacrylic acid 4.99g, acrylic acid 3.22g, acetyl
The own ester 2.9g of acetoxymethyl acrylic acid dihydroxy, to octylphenol polyethylene ethylene oxide ether 2.58g, tert-dodecylmercaotan 0.64g,
Deionized water 32.24g, amounts to 302.9g, by n-butyl acrylate, tertiary ethylene carbonate Veova 9, methacrylic acid hydroxypropyl
Ester, methacrylic acid and acrylic acid mixing, adipic dihydrazide are dispersed therein, and constitute mix monomer；
B. being dissolved in octylphenol polyethylene ethylene oxide ether in deionized water in A is taken, reactor is added after dissolving, is added while stirring
Enter tert-dodecylmercaotan, continue to stir 40min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, n-BMA and mix monomer are separately added into the same way, are continued to stir 40min after dripping off, are obtained pre-
Emulsion.
S2, emulsion polymerization
A. pre-emulsion 278.8g is weighed, is added in monomer dropping groove；
B. sodium peroxydisulfate 0.16g, deionized water 9.65g are weighed, sodium peroxydisulfate is dissolved in after deionized water, initiator drop is transferred to
Plus groove；
C. weigh sodium peroxydisulfate 0.32g to be dissolved in 1.6g deionized waters, sodium persulfate aqueous solution is made；
D. weigh and octylphenol polyethylene ethylene oxide ether 0.64g is dissolved in 4.88g deionized waters, add in reactor, open after dissolving
Begin to stir and heat, question response device temperature rises to 40-50 DEG C, the sodium persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 24.1g and add reactor, this
When polymerisation start, pipe to be condensed without backflow when, continue be incubated 20min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 90min after 5h, completion of dropwise addition；
G. stop reaction, when question response device is cooled to 30-35 DEG C, adds ammoniacal liquor and adjust pH=6-7, adjusted and added 1.61g's after pH
Polyisocyanate crosslinking agent, after being sufficiently stirred for, in the discharging of 300 mesh nylon two-wire strainer filterings.
Example IV
S1, pre-emulsion preparation
A. methyl methacrylate 64.49g, Isooctyl acrylate monomer 90.28g, isobutyl acrylate 80.61g, versatic acid second are weighed
Alkene ester Veova 10 12.90g, hydroxy propyl methacrylate 5.478g, methacrylic acid 6.384g, acrylic acid 1.29g, hydroxyl second
Base acrylamide 2.17g, to octylphenol polyethylene ethylene oxide ether 0.958g, mercaptoethanol 0.64g, deionized water 32.24g, is amounted to
297.44g, by isobutyl acrylate, tertiary ethylene carbonate Veova 10, hydroxy propyl methacrylate, methacrylic acid and propylene
Acid mixing, adipic dihydrazide is dispersed therein, and constitutes mix monomer；
B. take the octylphenol polyethylene ethylene oxide ether in A to be dissolved in deionized water, reactor is added after dissolving, is added while stirring
Mercaptoethanol, continues to stir 25min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, methyl methacrylate and mix monomer are separately added into the same way, are continued to stir 36min after dripping off, are obtained pre- breast
Liquid.
S2, emulsion polymerization
A. pre-emulsion 279.6g is weighed, is added in monomer dropping groove；
B. ammonium persulfate 0.479g, deionized water 9.65g are weighed, dissolves ammonium persulfate into after deionized water, is transferred to initiator
Dropwise adding tank；
C. weigh ammonium persulfate 0.32g to be dissolved in 1.6g deionized waters, ammonium persulfate aqueous solution is made；
D. weigh octylphenol polyethylene ethylene oxide ether 1.61g to be dissolved in 4.88g deionized waters, added after dissolving in reactor, started
Stir and heat, question response device temperature rises to 40-50 DEG C, the ammonium persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 17.84g and add reactor,
Now polymerisation starts, when pipe to be condensed is without backflow, continues to be incubated 20min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 90min after 4.5h, completion of dropwise addition；
G. stop reaction, when question response device is cooled to 36-40 DEG C, adds mass fraction and adjust pH=6-7 for 10% NaOH solution,
The epoxy crosslinking agent that 3.22g is added after pH is adjusted, after being sufficiently stirred for, in the discharging of 200 mesh nylon two-wire strainer filterings.
Embodiment five
S1, pre-emulsion preparation
A. methyl methacrylate 16.12g, Isooctyl acrylate monomer 32.24g, n-propyl 80.61g, versatic acid second are weighed
Alkene ester Veova 11 16.81g, hydroxy propyl methacrylate 1.61g, methacrylic acid 6.45g, acrylic acid 1.29g, adipic acid
Two hydrazides 1.45g, lauryl sodium sulfate 2.11g, TGA 0.16g, deionized water 96.73g, amount to 255.58g, by third
Olefin(e) acid n-propyl, tertiary ethylene carbonate Veova 11, hydroxy propyl methacrylate, methacrylic acid and acrylic acid mixing, oneself two
Acid dihydrazide is dispersed therein, and constitutes mix monomer；
B. take the lauryl sodium sulfate in A to be dissolved in deionized water, reactor is added after dissolving, sulfydryl is added while stirring
Acetic acid, continues to stir 25min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, methyl methacrylate and mix monomer are separately added into the same way, are continued to stir 36min after dripping off, are obtained pre- breast
Change liquid.
S2, emulsion polymerization
A. pre-emulsion 240.24g is weighed, is added in monomer dropping groove；
B. ammonium persulfate 0.16g, deionized water 11.35g are weighed, dissolves ammonium persulfate into after deionized water, is transferred to initiator
Dropwise adding tank；
C. weigh ammonium persulfate 1.14g to be dissolved in 5.7g deionized waters, ammonium persulfate aqueous solution is made；
D. weigh lauryl sodium sulfate 1.14g to be dissolved in 50g deionized waters, added after dissolving in reactor, start stirring simultaneously
Heating, question response device temperature rises to 40-50 DEG C, and the ammonium persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 15.34g and add reactor,
Now polymerisation starts, when pipe to be condensed is without backflow, continues to be incubated 30min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 90min after 4.5h, completion of dropwise addition；
G. reaction is stopped, when question response device is cooled to 36-40 DEG C, the NaOH solution for adding mass fraction 15% adjusts pH=6-7, adjusts
0.32g aziridine crosslinker is added after complete pH, after being sufficiently stirred for, in the discharging of 200 mesh nylon two-wire strainer filterings.
Embodiment six
S1, pre-emulsion preparation
A. methyl methacrylate 16.12g, Isooctyl acrylate monomer 4.22g, n-butyl acrylate 107.319g, versatic acid are weighed
Vinyl acetate Veova 11 42.176g, hydroxy propyl methacrylate 5.623g, methacrylic acid 5.623g, acrylic acid 2.812g,
Adipic dihydrazide 2.531g, to octylphenol polyethylene ethylene oxide ether 0.844g, the dimer 0.64g of methyl styrene, deionization
Water 56.234g, amounts to 244.142g, by n-butyl acrylate, tertiary ethylene carbonate Veova 11, hydroxy propyl methacrylate,
Methacrylic acid and acrylic acid mixing, adipic dihydrazide are dispersed therein, and constitute mix monomer；
B. being dissolved in octylphenol polyethylene ethylene oxide ether in deionized water in A is taken, reactor is added after dissolving, is added while stirring
Enter the dimer of methyl styrene, continue to stir 25min；
C. the Isooctyl acrylate monomer in A is added in dropping funel, is added with certain flow in reactor, treat completion of dropwise addition
Afterwards, methyl methacrylate and mix monomer are separately added into the same way, are continued to stir 36min after dripping off, are obtained pre- breast
Liquid.
S2, emulsion polymerization
A. pre-emulsion 229.642g is weighed, is added in monomer dropping groove；
B. ammonium persulfate 0.422g, deionized water 3.72g are weighed, dissolves ammonium persulfate into after deionized water, is transferred to initiator
Dropwise adding tank；
C. weigh ammonium persulfate 0.984g to be dissolved in 5.12g deionized waters, ammonium persulfate aqueous solution is made；
D. weigh and octylphenol polyethylene ethylene oxide ether 0.562g be dissolved in 23.41g deionized waters, added after dissolving in reactor,
Start to stir and heat, question response device temperature rises to 40-50 DEG C, the ammonium persulfate aqueous solution in C is added into reactor；
E. continue to heat, when question response device temperature rises to 70-80 DEG C, weigh remaining pre-emulsion 14.5g and add reactor, this
When polymerisation start, pipe to be condensed without backflow when, continue be incubated 40min；
F. maintenance reaction device temperature is at 80-90 DEG C, while open monomer dropping groove and initiator dropwise adding tank, with identical flow velocity plus
Material, time for adding is to react 90min after 4.5h, completion of dropwise addition；
G. reaction is stopped, when question response device is cooled to 55-60 DEG C, the NaOH solution for adding mass fraction 20% adjusts pH=6-7, adjusts
2.81g aziridine crosslinker is added after complete pH, after being sufficiently stirred for, in the discharging of 200 mesh nylon two-wire strainer filterings.
Wet and heat ageing resistant performance test:
Pressure sensitive adhesive prepared by embodiment 1-6 is uniformly coated on the base material of conventional electrical diaphragm with bar, is done in baking oven
The film is placed into 72h under the conditions of 25 DEG C after dry, is affixed in PVC profile, 80 DEG C, 80RH hydrothermal aging case, aging is put into
72h, quickly peels off after room temperature places 30 min after taking-up, detects whether glue.Will be pressure-sensitive according to the residual silkgum content of Surface of profile
Glue hydrothermal aging is divided into 0-10 grades, and " 0 " represents not fall glue, and series is bigger, and damp and hot heat aging performance is poorer.
Test result is shown in Table 1：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Wet-heat resisting grade | 0 grade | 0 grade | 0 grade | 0 grade | 0 grade | 0 grade |
Above-mentioned embodiment is exemplary, be in order to preferably make skilled artisans appreciate that this specially
Profit, it is impossible to be not understood as including this patent the limitation of scope；As long as according to disclosed in this patent spirit made it is any
Equivalent change is modified, and each falls within the scope that this patent includes.
Claims (8)
1. a kind of water-borne pressure sensitive adhesive, it is characterised in that polymerize preparation in the reactor by following component raw material and obtained, its group
Into as follows by mass percentage：
Alkyl methacrylate 5%-20%
Isooctyl acrylate monomer 10%-28%
Alkyl acrylate 25%-60%
Tertiary ethylene carbonate 4%-15%
Hydroxy propyl methacrylate 0.5%-2%
Methacrylic acid 1%-2%
Acrylic acid 0.4%-1%
Internal crosslinker 0.45%-0.9%
Emulsifying agent 0.5%-1.5%
Molecular weight regulator 0.05%-0.2%
Initiator 0.15%-0.5%
Aqueous slkali 0.1%-1%
Outside cross-linking agent 0.1%-1%
Deionized water 15%-50%.
2. water-borne pressure sensitive adhesive as claimed in claim 1, it is characterised in that described alkyl methacrylate is metering system
One or more mixtures in sour methyl esters, EMA, n-BMA, described acrylic acid alkyl
Ester is methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, one kind or many in n-propyl
Kind mixture, described tertiary ethylene carbonate is Veova 9, Veova 10, any one in Veova 11.
3. water-borne pressure sensitive adhesive as claimed in claim 1, it is characterised in that described internal crosslinker is DAAM,
Any one in adipic dihydrazide, the own ester of acetoacetate methacrylic acid dihydroxy, hydroxyethyl acrylamide, it is described
Emulsifying agent is lauryl sodium sulfate, neopelex, n nonylphenol polyethylene glycol oxide ether or octylphenol polyethylene is aoxidized
Any one in vinethene, described molecular weight regulator is n-dodecyl mercaptan, secondary lauryl mercaptan, tertiary dodecane
Any one in the dimer of base mercaptan, mercaptoethanol, TGA or methyl styrene, described initiator is persulfuric acid
Any one in ammonium, potassium peroxydisulfate or sodium peroxydisulfate, the sodium hydroxide solution that described aqueous slkali is mass fraction 10-20%
Or ammoniacal liquor, described outside cross-linking agent is urea heterocycle resin cross-linking agent, aziridine crosslinker or polyisocyanate crosslinking agent.
4. a kind of preparation method of water-borne pressure sensitive adhesive, it is characterised in that comprise the following steps,
S1, the preparation of pre-emulsion：
A, weighs the emulsifying agent for accounting for raw material total amount 0.3-1.0wt%, 0.05-0.2 wt% molecular weight regulator, 10-30wt%'s
Deionized water；
B, takes the emulsifying agent in A in reactor, with deionized water dissolving, after dissolving, adds molecular weight regulator, stir 20-
40min；
C, weighs and accounts for raw material total amount 5-20wt% alkyl methacrylates, 10-28wt% Isooctyl acrylate monomers, 25-60wt%'s
Alkyl acrylate, 4-15wt% tertiary ethylene carbonate, 0.5-2wt% hydroxy propyl methacrylate, 1-2wt% methyl-prop
Olefin(e) acid, 0.4-1wt% acrylic acid, 0.45-0.9wt% internal crosslinker, by alkyl acrylate, tertiary ethylene carbonate, methyl
Hydroxypropyl acrylate, methacrylic acid and acrylic acid mixing, and internal crosslinker is dispersed therein, constitute mix monomer；
D, the Isooctyl acrylate monomer in C is added in dropping funel, and is instilled with certain flow in reactor, after dripping off, with
Same mode is respectively dropped into alkyl methacrylate and mix monomer, continues to stir 30-40min after completion of dropwise addition, obtains
Pre-emulsion；
S2, emulsion polymerization：
A, weighs the initiator for accounting for raw material total amount 0.05-0.15wt%, after deionized water dissolving, is added to initiator dropwise adding tank
In；
B, weighs the seed that pre-emulsion 6-8wt% is accounted in S1 as polymerization, and remaining pre-emulsion is added to monomer dropping groove
In；
C, weighs the initiator for accounting for raw material total amount 0.1-0.35wt%, is 1 with deionized water example in mass ratio：5-1：8 dissolvings, system
Into initiator solution；
D, weighs in the emulsifying agent addition reactor for accounting for raw material total amount 0.2-0.5wt%, with deionized water dissolving, starts agitator
And heat, when question response device temperature rises to 40-50 DEG C, the initiator solution in C is added in reactor；
E, continues to heat, when question response device temperature rises to 70-80 DEG C, the seed of emulsion polymerization in B is added into reactor, now
Polymerisation starts, and blue-fluorescence occurs in emulsion, after question response terminates, and continues to be incubated 20-40min；
F, maintenance reaction temperature opens initiator dropwise adding tank and monomer dropping groove at 80-90 DEG C simultaneously, keeps identical flow velocity
Add in reactor, time for adding is 4-5h, after completion of dropwise addition, continue to react 70-110min at 80-90 DEG C；
G, after reaction terminates, 25-60 DEG C is cooled to by reaction product, is added aqueous slkali and is adjusted pH to be 6-7, addition accounts for raw material total amount
0.1-1wt% outside cross-linking agent, is sufficiently stirred for after 20min, is discharged with strainer filtering.
5. the preparation method of water-borne pressure sensitive adhesive as claimed in claim 4, it is characterised in that total consumption of the emulsifying agent accounts for original
Expect total amount 0.5-1.5wt%, total consumption of the initiator accounts for raw material total amount 0.15-0.5wt%, and total consumption of the aqueous slkali is accounted for
Raw material total amount 0.1-1wt%, total consumption of the deionized water accounts for raw material total amount 15%-50%.
6. the preparation method of water-borne pressure sensitive adhesive as claimed in claim 4, it is characterised in that described methacrylate
Ester is methyl methacrylate, EMA, one or more mixtures in n-BMA, described
Alkyl acrylate be methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, n-propyl
In one or more mixtures, described tertiary ethylene carbonate is Veova 9, Veova 10, any in Veova 11
It is a kind of.
7. the preparation method of water-borne pressure sensitive adhesive as claimed in claim 4, it is characterised in that described internal crosslinker is diacetone
One kind in acrylamide, adipic dihydrazide, the own ester of acetoacetate methacrylic acid dihydroxy, hydroxyethyl acrylamide,
Described emulsifying agent is lauryl sodium sulfate, neopelex, n nonylphenol polyethylene glycol oxide ether or to octyl phenol
Any one in polyethylene glycol oxide ether, described molecular weight regulator is n-dodecyl mercaptan, secondary lauryl mercaptan, uncle
Any one in the dimer of lauryl mercaptan, mercaptoethanol, TGA or methyl styrene, described initiator is
Ammonium persulfate, potassium peroxydisulfate or sodium peroxydisulfate, sodium hydroxide solution or ammonia that described aqueous slkali is mass fraction 10%-20%
Water, described outside cross-linking agent is urea heterocycle resin cross-linking agent, aziridine crosslinker or polyisocyanate crosslinking agent.
8. the preparation method of water-borne pressure sensitive adhesive as claimed in claim 4, it is characterised in that described filter screen is 200-300 mesh
Nylon two-wire filter screen.
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| CN109790255A (en) * | 2016-09-29 | 2019-05-21 | 巴斯夫欧洲公司 | Aqueous polymer dispersion and its purposes as solid black priming paint |
| CN111296147A (en) * | 2020-03-31 | 2020-06-19 | 王新勇 | Composite mulching film and preparation device thereof |
| CN112661900A (en) * | 2020-12-21 | 2021-04-16 | 湖北航天化学技术研究所 | Styrene-acrylic emulsion pressure-sensitive adhesive for protective film and preparation method thereof, styrene-acrylic emulsion pressure-sensitive adhesive tape for protective film and application thereof |
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| CN109790255A (en) * | 2016-09-29 | 2019-05-21 | 巴斯夫欧洲公司 | Aqueous polymer dispersion and its purposes as solid black priming paint |
| CN111296147A (en) * | 2020-03-31 | 2020-06-19 | 王新勇 | Composite mulching film and preparation device thereof |
| CN111296147B (en) * | 2020-03-31 | 2022-04-15 | 王新勇 | Composite mulching film and preparation device thereof |
| CN112661900A (en) * | 2020-12-21 | 2021-04-16 | 湖北航天化学技术研究所 | Styrene-acrylic emulsion pressure-sensitive adhesive for protective film and preparation method thereof, styrene-acrylic emulsion pressure-sensitive adhesive tape for protective film and application thereof |
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