CN106883794A - A kind of one-component peelable type aqueous adhesive and its bonding sheet - Google Patents
A kind of one-component peelable type aqueous adhesive and its bonding sheet Download PDFInfo
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- CN106883794A CN106883794A CN201710101410.9A CN201710101410A CN106883794A CN 106883794 A CN106883794 A CN 106883794A CN 201710101410 A CN201710101410 A CN 201710101410A CN 106883794 A CN106883794 A CN 106883794A
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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
- 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
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
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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
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A kind of one-component peelable type aqueous adhesive and its bonding sheet, mainly solve the various adhesive of prior art, it is impossible to use with the fabric of direct body contact, pollution environment is not environmentally.Aqueous adhesive of the invention is synthetic resin emulsion, is obtained by ethylenically unsaturated monomer polymerization.This adhesive can be used on the label film of various base materials, have good adhesive force to the base material of some low-surface-energies, especially have suitable cohesive force and rippability to fabric, safety and environmental protection, with low cost to various fabric faces all without cull is produced.
Description
Technical field
The invention belongs to field of adhesive technology, more particularly to the few aqueous adhesive of rheological parameters' change with time, its bonding sheet is each
Plant characteristic when being used on fabric with peelable noresidue.
Background technology
Pressure sensitive adhesive is the abbreviation of pressure-sensitive adhesive, is that a class has the adhesive for having sensitiveness to pressure, is mainly used in system
Standby pressure sensitive adhesive tape.The peeling force (adhesive tape and the peeling force showed after maxxaedium pressurization stickup) of general pressure sensitive adhesive should be less than
The cohesive force (active force between pressure-sensitive xanthan molecule) of adhesive, and less than the base adhesion force (between adhesive and base material of adhesive
Adhesive force).Such pressure sensitive adhesive is not in just in use the phenomenons such as degumming.Strippable pressure-sensitive dose is worked as from base material
During upper removing, it is necessary to be without cull and thoroughly remove, i.e., visible adhesive vestige can not be left on base material.Pressure sensitive adhesive may be used also
It is different according to decentralized medium, it is divided into solvent pressure-sensitive adhesive and water-borne pressure sensitive adhesive.Solvent pressure-sensitive adhesive is using toluene, ethyl acetate etc.
Used as reaction medium, it has excellent pressure-sensitive and a cementability to organic solvent, and also with resistance to ag(e)ing, light resistance, resistance to
The advantages of aqueous, oil resistivity, rippability.Water-borne pressure sensitive adhesive using water as solvent, with cheap, throughput rate it is fast,
The advantage such as pollution-free, but its Adhensive performance is not high.Solvent pressure-sensitive adhesive due to pollution environment and relatively costly, therefore gradually by
Water-borne pressure sensitive adhesive replaces.At present, the various information of in the market fabric be all in the form of drop string on clothing, its cost compares
The high and a large amount of paper of waste, it is thus proposed that be attached on clothing to replace the form of drop using the form of label, reduce and waste,
But neither one clearly can be used for the adhesive stick of Environmental Safety on fabric on the market now.
The Chinese patent of Publication No. CN102876249A reports a kind of peelable type organic silicon pressure-sensitive adhesive and prepares
Method, the adhesive is first to synthesize a kind of MQ resins using waterglass;Directly balance copolymerization method synthesizes a kind of hydroxy-end capped silicon rubber
Glue;After being again mixed and stirred for uniformly MQ silicones, hydroxyl-terminated polydimethylsiloxane, organic solvent by certain proportioning, add certain
The catalyst of amount, filler, curing agent and stabilizer, stir, heating reflux reaction certain hour, reduce temperature and simultaneously vacuumize
Solvent is removed as far as possible, obtains final product a kind of peelable type organic silicon pressure-sensitive adhesive.Adhesive peel strength prepared by the method is less than
2.9N/2.5cm, therefore glue can be allow to peel off easily.The Chinese patent of Publication No. CN102703003A reports one kind
The easily peelable environment-friendly water-based pressure sensitive adhesive of silane coupler modified resinae.Its preparation method is:1. with water as solvent, by polyethylene
Alcohol, anion surfactant, emulsifying agent and PH conditioning agents are mixed and are warming up to 50 DEG C, plus acrylic monomers, silane coupler, friendship
Receipts or other documents in duplicate body and degree of polymerization conditioning agent, react 1h and obtain pre-emulsion at 60-65 DEG C;2. take 25% pre-emulsion and 40% initiator is mixed
It is even, 80-85 DEG C is warming up to, treat that liquid becomes indigo plant and starts that remaining pre-emulsion is added dropwise, and add drop in 20% initiator, 3h every 1h
It is complete, remaining initiator is finally added, flow back 1-1.5h at 90 DEG C;3. above-mentioned reaction solution is cooled to 40 DEG C, plus bridging agent is mixed
After be down to room temperature.Adhesive prepared by the method:1. initial adhesion force >=18# balls (initial adhesion force test by GB/T4852-2002 determine);
2. viscous force >=48h (holding viscous force test to be determined by GB/T4851-1998) is held;3. 180 ° of peel strength >=12N/25mm (180 ° of strippings
Determined by GB/T2792-1998 from strength test), with the advantage such as cheap, process is simple, adhesive strength be high, peelable,
And avoid pollution of the solvent pressure-sensitive adhesive to environment.
Above-mentioned disclosed invention patent also has many weak points for fabric, prepared by such as CN102876249A
Peelable organic silicon adhesive, it uses organic solvent to be prepared, though it is follow-up by vacuumizing away solvent, can not
Can take out to the greatest extent, still can there is a small amount of solvent in its product, on the one hand pollution environment can not environmentally, in addition use direct with human body
On the fabric of contact, and its complex process, high cost.Silane coupler modified resinae for CN102703003A preparations is easy
The environment-friendly water-based pressure sensitive adhesive peeled off, it adopts water as solvent, process is simple, but it uses substantial amounts of bridging agent for DJJL-02, category
In one-level dangerous material, it is impossible to using with the fabric of direct body contact on, and its final product tack and peeling force are too high, make
There can be damage to surface during used in some soft fabrics.Therefore, stilling need to look for peace a kind of good combination property, with low cost
The adhesive stick that can be used on fabric that loopful is protected.
The content of the invention
Goal of the invention of the invention is to make up the deficiencies in the prior art, there is provided a kind of single-component water-based adhesive and its
Bonding sheet.This adhesive can be used on the label film of various base materials, have good adhesive force to the base material of some low-surface-energies,
Especially there is suitable cohesive force and rippability to fabric, to various fabric faces all without produce cull, safety and environmental protection, into
This is cheap.
The technical scheme is that:Aqueous adhesive of the invention is synthetic resin emulsion, by ethylenically unsaturated monomer
Polymerization is obtained.Specifically by (methyl) acrylic acid and the ethylenically unsaturated monomer of (methyl) esters of acrylic acid, and the alkane containing alkenyl
TMOS cross-linking functional group's monomer, leads in the presence of the reactive anionic emulsifier with respect to olefinically unsaturated functional group
Cross the synthetic resin emulsion that radical copolymerization is obtained.
Its nonvolatile component is preferably the scope of 30 mass %~60 mass %.When nonvolatile component is less than 30 mass %,
Because drying property is slack-off so not preferred;In addition, when nonvolatile component is more than 60 mass %, due to the viscosity of synthetic resin emulsion
It is too high so not preferred.
In view of the coating of aqueous adhesive, the viscosity of synthetic resin emulsion is preferably 10~10000mPas, at a high speed
10~1000mPas, most preferably 50~300mPas are more preferably in the case of coating.
As the ethylenically unsaturated monomer for using in the present invention, if with least one vinyl that can be polymerized
Monomer, can enumerate (methyl) esters of acrylic acid of such as alkyl chain with straight-chain, branched or ring-type, benzene second
The hetero ring type vinyl compound such as the aromatic ethenyl compounds such as alkene, AMS, vinyl pyrrolidone, with (first
Base) acrylic acid hydroxy alkyl ester, alkyl amino (methyl) acrylate, vinyl acetate or ethene that chain acid vinyl ester is representative
Esters, monoene hydro carbons (butylene, isobutene etc.), conjugated diolefin (butadiene, isoprene, chlorobutadiene etc.), α, β-no
Saturation monocarboxylic acid or dicarboxylic acids (acrylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid, fumaric acid etc.), acrylonitrile etc.
Vinyl cyanide compound.These ethylenically unsaturated monomers can be used alone or be applied in combination two or more.Wherein, from further
From the aspect of improving easiness, the water resistance of aqueous adhesive of radical polymerization, preferably (methyl) methyl acrylate, (first
Base) n-butyl acrylate, (methyl) 2-EHA and (methyl) hydroxy-ethyl acrylate.That is, it is excellent as synthetic resin
Elect (methyl) acrylate copolymer obtained using these ethylenically unsaturated monomers as.
The glass transition temperature of the emulsion that ethylenically unsaturated monomer polymerization is obtained is preferably -50~0 DEG C, further excellent
Elect -40~-20 DEG C as.When glass transition temperature is less than -50 DEG C, bonding force during due to peeling off again will not fully be reduced and had
Adhesive compound remains in the tendency in sticky surface, and during higher than 0 DEG C, adhesive reduction, especially Initial adhesion become
Insufficient tendency.Glass transition temperature designated herein refers to the value calculated by Fox formulas.
In this aqueous adhesive, cross-linking functional group's monomer can be used one or more olefinics containing alkoxy silane
Unsaturated monomer.Consumption is preferably 0 mass %~10 mass %, more preferably 0 mass %~5 mass %.The consumption of crosslinking agent
During more than 10 mass %, it is possible in the stability step-down gelatin phenomenon of aqueous adhesive.
In this aqueous adhesive, one or more reactive anionics containing respect to olefinically unsaturated functional group can be used
Emulsifying agent.Emulsifier is preferably 0.5 mass %~2 mass %, more preferably 0.5 mass %~1 mass %.Emulsifying agent
When consumption is more than 2 mass %, it is possible to remained in aqueous adhesive, water resistance and releasable are reduced.
As it was previously stated, the synthetic resin emulsion in the present invention can be by the presence in reactive anionic emulsifier
Under, the radical polymerization of ethylenically unsaturated monomer composition is obtained.Polymerisation can be used normal pressure reactor or pressure-resistant reaction
Device, is carried out by any one method in batch (-type), semi continuous and continous way.For reaction temperature, although generally at 10 DEG C
Carried out at~100 DEG C, but generally 30 DEG C~90 DEG C.Reaction time is not particularly limited, use level according to each composition and
Reaction temperature etc. is suitably adjusted.
During by ethylenically unsaturated monomer composition radical polymerization, as needed can also to added in polymerization system it is non-from
Sub- property emulsifying agent, water soluble polymer etc..The species or consumption of emulsifying agent are adjusted according to composition of ethylenically unsaturated monomer etc. is appropriate
Section.
In addition, as this emulsifying agent, such as polyoxyalkylene alkyl sulfate, polyoxy allylic alkylation phosphate etc. can be enumerated
Anionic surfactant, and polyoxyalkylene alkyl, polyoxyalkylene alkyl phenyl ether, polyoxyalkylene fatty acid ester, polyoxy
Change the nonionic surfactants such as alkene sorbitan fatty acid esters.They can be used alone or two or more combinations make
With.
In addition, in the range of the water resistance for not damaging aqueous adhesive, can also be to adding polyethylene in polymerization system
The water solubilitys such as alcohol, methylcellulose, carboxymethylcellulose calcium, hydroxyethyl cellulose, hydroxypropyl cellulose, PVP
Macromolecule.
The polymerization initiator used during radical polymerization is known conventional polymerization initiator, can enumerate such as mistake
Hydrogen oxide, ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate, TBHP etc..In addition, as needed, can also be by these
Polymerization initiator and rongalite, Vitamin C acids, sulfites, tartaric acid or its esters etc. combine to carry out oxygen
Change reductive polymerization.In addition, as needed, the chain-transferring agents such as alcohols, thio-alcohol can also be used.
Not damaging in the range of effect of the present invention, can also be to adding propylene in aqueous adhesive composition of the invention
Acid is resin, ethane-acetic acid ethyenyl ester system resin, vinyl acetate system resin, epoxy resin, amino resins and polyurethane series tree
The various additives such as the resinous principles such as fat, viscous modifier, colouring agent, antiblocking agent, defoamer.
Adherend during as using aqueous adhesive of the invention as adhesive is weaved cotton cloth for various, and its material is not special
Limit, the synthetic materials such as terylene, polypropylene fibre, polyamide fibre, spandex, acrylic fibers, and cotton can be enumerated, silk is beautiful to wait natural material.In addition, this
Invention is related at least one side in piece to be laminated the bonding sheet of the gluing oxidant layer formed by foregoing aqueous adhesive composition.It is right
The raw material of piece (base material) are not particularly limited, can enumerate paper, plastic sheeting, metal, glass, weave cotton cloth, non-woven fabrics and surface tool
The raw material of irregular foaming body etc., wherein paper, plastic sheeting, weave cotton cloth, non-woven fabrics is preferably used as raw material.
As the method for the layer using aqueous adhesive of the invention formation adhesive compound, can enumerate in above-mentioned base
The aqueous adhesive composition is directly coated with material makes its dry direct method, and demoulding treatment is being carried out with organosilicon etc.
After the aqueous adhesive composition is coated with the Mould release material such as paper or plastic sheeting drying it, forming gluing oxidant layer, at this
Base material is overlapped on gluing oxidant layer and is pressurizeed, gluing oxidant layer is transferred to the transfer printing on the base material.
As coating method, can enumerate using roll coater, comma coater, lip coating machine, die fountain coater,
Gravure coater etc. as coating machine method.
Aqueous adhesive of the invention, preferably solid component concentration be 30~60 weight %, viscosity be 10~
10000mPas (BH types viscosimeter, 10 turns, 23 DEG C), pH are 6~9.When being coated with by above-mentioned direct method, although depend on
The species of coating method, but require to be low viscosity generally for being coated with more at high speed more.In addition, being coated with by transfer printing
When, preferred viscosities are the aqueous adhesive of 50~300mPas (BM types viscosimeter, 60 turns, 23 DEG C).
The positive effect of the present invention is to compensate for the deficiencies in the prior art, there is provided it is new single-component water-based peelable gluing
Agent.(1) safety and environmental protection:This invention uses water-based emulsion, without poisonous and harmful substance, can be directly used on fabric, safety
Environmental protection;(2) improve production efficiency:This invention is taken in technique and replaces drop using bonding sheet label, and technique is simpler, energy
Enough effective improve production efficiencies;(3) reduces cost:50%- is reduced on cost using the more original drop of bonding sheet label
90%;(4) economize on resources:Because this bonding sheet label substrate uses polyethylene film, the material of more original mode is lighter,
Reduce the wasting of resources;(5) diversification of forms:Bonding sheet label can be attached to any position of fabric with different shapes and sizes, can
More selection are provided to clothes manufacturer
Embodiment
More specific description is carried out to the present invention below by way of embodiments and comparative examples, but the present invention is not limited by them
It is fixed.And, the proterties of the resin emulsion of embodiment and comparative example is evaluated by following methods.
(nonvolatile component)
The resin emulsion of about 1g is weighed in the aluminum dish of diameter 5cm, is dried 1 hour at 105 DEG C, weigh residual components,
Thus nonvolatile component is calculated.
(pH)
Determined with pH meter.
(viscosity)
Using Bu Shi rotation viscometers, under conditions of 23 DEG C of liquid temperature, revolution 10rpm or 60rpm, No.1~3 rotors
Determine.
(releasable)
With the coater of 6mil after coated sample on base material, dried 2 minutes, 23 DEG C 50% with 105 DEG C in baking oven
Conserved 24 hours under RH environment.Maintenance cuts 2.5cm battens wide after finishing, fitted on clung body, and the roller with 1kg again
Roll around one time, processed 24 hours under 23 DEG C of 50%RH environment and under 60 DEG C of 95%RH environment respectively.Test respectively different
Residual silkgum content after being peeled off under curing condition.
○:Without cull
△:Cull is few
×:Cull is more
Specific embodiment
Further detailed description is done to the present invention with reference to the example of specific implementation, but the example of the implementation is not
Should be construed in a limiting sense.
Embodiment 1:
With homomixer by the mass parts of 2-EHA 380, the mass parts of methyl methacrylate 70, methyl-prop
The mass parts of olefin(e) acid 2- hydroxyl ethyl esters 50, the mass parts of acrylic acid 30, crosslinking agent KH-570 (3- (methacryloxypropyl) propyl trimethoxies
Silane) 3 mass parts, reactive emulsifier (Di-ichi Kogyo Seiyaku Co., Ltd.'s manufacture, AQUALON KH-10) 10 mass parts, and
The mass parts mixing and emulsifying of ion exchange water 200, prepares ethylenically unsaturated monomer emulsification composition.
To in the four-neck flask reactor with agitating device, thermometer and reflux cooler, the mass of KH-10 5 is added
Part, the mass parts of ion exchange water 100 are warming up to 80 DEG C.Then while, to 0.4 mass parts of potassium peroxydisulfate are put into reactor,
Start that the first ethylenically unsaturated monomer emulsification composition for preparing is added dropwise.The ethylenically unsaturated monomer emulsification group was added dropwise with 3 hours
Compound and the solution with the mass parts of the ion exchange water 140 dissolving mass parts of potassium peroxydisulfate 0.8.And, in dropwise addition, reaction
Temperature in device is maintained at 80 DEG C.After completion of dropwise addition, after being kept for 1 hour at 80 DEG C, room temperature is cooled to, adds the mass of ammoniacal liquor 3
Part, half an hour is stirred, obtain the resin emulsion of embodiment 1.The proterties of resulting resin emulsion is that nonvolatile component is
55.4%th, viscosity is that 80mPas, pH are 7.5, and it is -38.3 DEG C to calculate Tg.
Embodiment 2:
The mass parts of 2-EHA 400, the mass parts of methyl methacrylate 55, are carried out and embodiment in addition
1 identical is operated, and obtains the resin emulsion of embodiment 2.The proterties of resulting resin emulsion, nonvolatile component be 56.0%,
Viscosity is that 150mPas, pH are 7.4, and it is -42.3 DEG C to calculate Tg.
Embodiment 3:
Replacement acrylic acid is β-acryloxy propionic, and operation same as Example 1 is carried out in addition, is implemented
The resin emulsion of example 3.The proterties of resulting resin emulsion, nonvolatile component is 55.1%, viscosity for 300mPas, pH are
8.6, it is -40.5 DEG C to calculate Tg.
Comparative example 1:
Replacement KH-570 is KH-170 (non-reacted alkoxy silane, two (3- trimethoxy-silylpropyls)), is removed
Operation same as Example 1 is carried out beyond this, the resin emulsion of comparative example 1 is obtained.The proterties of resulting resin emulsion, no
Volatile ingredient is that 54.2%, viscosity is that 70mPas, pH are 7.4, and it is -38.6 DEG C to calculate Tg.
Comparative example 2:
Replacement KH-10 is SDBS (non-reactive anion type emulsifying agent), and behaviour same as Example 1 is carried out in addition
Make, obtain the resin emulsion of comparative example 2.The proterties of resulting resin emulsion, nonvolatile component is that 54.0%, viscosity is
110mPas, pH are 7.5, and it is -38.6 DEG C to calculate Tg.
Comparative example 3:
The mass parts of 2-EHA 440, the mass parts of methyl methacrylate 10, are carried out and embodiment in addition
1 identical is operated, and obtains the resin emulsion of comparative example 4.The proterties of resulting resin emulsion, nonvolatile component be 54.3%,
Viscosity is that 180mPas, pH are 7.5, and it is -51.6 DEG C to calculate Tg.
Residual silkgum content 1:Test result after the treatment in lower 24 hours of 23 DEG C of 50%RH environment
Residual silkgum content 1:Test result after the treatment in lower 24 hours of 60 DEG C of 95%RH environment
Residual silkgum content 1:Test result after the treatment in lower 24 hours of 23 DEG C of 50%RH environment;
Residual silkgum content 1:Test result after the treatment in lower 24 hours of 60 DEG C of 95%RH environment.
Claims (10)
1. a kind of one-component peelable type aqueous adhesive, is obtained by ethylenically unsaturated monomer polymerization, specifically by(Methyl)Third
Olefin(e) acid and(Methyl)The ethylenically unsaturated monomer of esters of acrylic acid, and the alkoxy silane cross linked property monomer containing alkenyl,
The synthesis obtained by radical copolymerization in the presence of reactive anionic emulsifier with respect to olefinically unsaturated functional group
Resin emulsion.
2. aqueous adhesive according to claim 1, described its nonvolatile component of synthetic resin emulsion is solid constituent
Concentration is 30 mass %~60 mass %.
3. aqueous adhesive according to claim 1, the viscosity of described synthetic resin emulsion is 10~10000mPa
S, preferably 10~1000mPas, more preferably 50~300mPas.
4. aqueous adhesive according to claim 1, after the emulsion that described ethylenically unsaturated monomer polymerization is obtained is dried
Into polymeric membrane glass transition temperature be -50~0 DEG C, preferably -40~-20 DEG C.
5. aqueous adhesive according to claim 1, described ethylenically unsaturated monomer, are that can gather with least one
The monomer of the vinyl of conjunction, can be specifically (methyl) esters of acrylic acid of the alkyl chain with straight-chain, branched or ring-type;
Styrene, AMS in aromatic ethenyl compound;The vinyl pyrrolidone of hetero ring type vinyl compound;
Vinyl esters are (methyl) acrylic acid hydroxy alkyl ester, alkyl amino (methyl) acrylate, vinyl acetate or alkanoic acid ethene
Ester;Monoene hydro carbons (ethene, propylene, butylene, isobutene);Conjugated diolefin (butadiene, isoprene, chlorobutadiene);α,
β-unsaturated monocarboxylic or dicarboxylic acids (acrylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid, fumaric acid);Vinyl
The acrylonitrile of cyanogen compound;These ethylenically unsaturated monomers can be used alone or be applied in combination two or more.
6. aqueous adhesive according to claim 1, in described aqueous adhesive, cross-linking functional group's monomer uses one
Plant or more than one alkoxy silane unsaturated monomers containing alkenyl, consumption is 0.7 mass %~10 mass %, preferably 0.7 matter
Amount %~5 mass %.
7. aqueous adhesive according to claim 1, in described aqueous adhesive, alkene is contained using one or more
Belong to the reactive anionic emulsifier of unsaturated functional group, emulsifier is 0.5 matter %~2 mass %, preferably 0.5 matter
Amount %~1 mass %.
8. aqueous adhesive according to claim 1, polymeric reaction temperature is 30 DEG C~90 DEG C.
9. the bonding sheet of one-component peelable type aqueous adhesive according to claim 1, it is characterized in that being related in piece
The bonding sheet of the gluing oxidant layer that at least one side stacking is formed by aqueous adhesive composition, the substrate material of piece is paper, moulds
Material film, metal, glass, weave cotton cloth, non-woven fabrics and surface have the raw material of irregular foaming body.
10. the application of one-component peelable type aqueous adhesive according to claim 1, it is characterized in that adherend is to wash
Synthetic fibre, polypropylene fibre, polyamide fibre, spandex, acrylic fibers synthetic material, or cotton, silk, beautiful natural material.
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CN115595093A (en) * | 2022-02-10 | 2023-01-13 | 天津兴恒新材料科技有限责任公司(Cn) | Water-based acrylic adhesive and preparation method thereof |
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