Summary of the invention
The objective of the invention is to propose a kind of preparation method, to improve the application performance of acrylate adhesive with multiple cross-linked interpenetrating(polymer)networks polyacrylate emulsion sizing agent of three-layer nuclear shell structure.
The present invention prepares middle layer and shell pre-emulsion with a small amount of anionic emulsifier preparation nuclear emulsion with the polymerizable emulsification system, adopts the low soap emulsion polymerization technique of semi-continuous seed, makes the stable emulsion of excellent performance; Design has the three-layer nuclear shell structure of difference in functionality monomer, cross-linking monomer composition, and stratum nucleare mainly adopts the oleophilicity hard monomer, and polar monomer and cross-linking monomer are introduced in the middle layer; Utilize reactive behavior and multiple pair of key of polyfunctional monomer between the polar group; Between stratum nucleare and shell, realize crosslinked " bridge formation " effect, improve cohesive strength and toughness, the outer a large amount of polar monomers (AA, GMA, HA) that adopt carry out hydrogen bond and covalently cross-linked; Be aided with acetoacetyl/diamines, metal ion crosslinked promotion system; Promote that further emulsion particle merges crosslinked film forming, it is fine and smooth stable to make emulsion, and the transparency of filming is good; Cohesive strength, adhesive power obtain good balance, and have good water-fast moisture resistance properties.
The object of the invention realizes through following technical scheme:
The compound single-component low temperature self-crossing emulsion sizing agent of using of paper, in mass fraction, composition of raw materials comprises following component:
By weight percentage, said emulsifying agent by the stratum nucleare that accounts for (30~50) % with the middle layer of emulsifying agent, (30~50) % with emulsifying agent and 20~40) shell of % forms with emulsifying agent; Said stratum nucleare adopts conventional anionic emulsifier with emulsifying agent; Middle layer and shell adopt polymerisable emulsifier with emulsifying agent, are selected from 2-acrylamido-2-methyl-propyl sulfonic acid, allyl group hydroxypropyl azochlorosulfonate acid sodium, alkylamidoalkyl sodium vinyl sulfonate, sodium vinyl sulfonate, styryl sodium sulfonate, 2-acrylic amide-2-methyl propane sulfonic acid sodium salt and 3-allyloxy-2-hydroxyl-1-propane sulfonic acid sodium salt one or both;
By weight percentage, said nuclear layer monomer is made up of 75~85% oleophilicity monomer, 1~3% hydrophilic monomer and 10~25% semi-hydrophilic monomers; Said oleophilicity monomer is one or both in Bing Xisuandingzhi, 4-methyl-2-vinylformic acid pentyl ester and the 2 ethyl hexyl acrylate; Said hydrophilic monomer is hydroxyethyl acrylate, vinylformic acid hydroxypropyl ester, methylacrylic acid hydroxyethyl ester or hydroxypropyl methacrylate; Said semi-hydrophilic monomer is methyl acrylate, TEB 3K, ethyl propenoate and/or ethylacrylic acid methyl esters;
By weight percentage, said middle layer monomer comprises 85~97% acrylate monomer, 1~5% polar monomer and 0.4~1.5% cross-linking monomer mutually; Said acrylate monomer is multiple in methyl acrylate, TEB 3K, ethyl propenoate, Bing Xisuandingzhi and the isooctyl acrylate ester; Said polar monomer is that vinylformic acid, methylacrylic acid, methylene-succinic acid, fumaric acid, maleic anhydride, senecioate-hydroxyl ethyl ester, senecioate-hydroxypropyl acrylate, methylacrylic acid-beta-hydroxy ethyl ester, methylacrylic acid-β-hydroxypropyl acrylate, acrylic amide, mass ratio are mixture, N-vinyl pyrrolidone, N-caprolactam and/or the N of 1: 1 SY-Monomer G and acrylic amide, the N-DMAA; Said cross-linking monomer is Vinylstyrene, diallyl maleate, ethylene glycol dimethacrylate, 1; 4-butylene glycol diacrylate, 1; 6-hexanediyl ester, 1,8-ethohexadiol diacrylate, Viscoat 295, trimethylammonium vinylformic acid pentaerythritol ester, tetraethylene glycol dimethacrylate or tri (propylene glycol) diacrylate;
By weight percentage, said shell monomers is made up of 90~95% acrylate monomer, 2~10% polar monomer and 0.05~2% crosslinking accelerator; Said acrylate monomer is multiple in methyl acrylate, TEB 3K, ethyl propenoate, Bing Xisuandingzhi, isooctyl acrylate ester and the lauryl methacrylate(LMA); Said polar monomer is that vinylformic acid, mass ratio are 1: 1 SY-Monomer G and acrylic amide mixture, methylacrylic acid and/or SY-Monomer G; Said crosslinking accelerator is vinyltriethoxysilane, vinyl silane triisopropoxide, γ-methacryloxypropyl trimethoxy silane or glycidyl ether propoxy-methyldiethoxysilane;
Said initiator is ammonium persulphate, Potassium Persulphate or 2,2-azo diisobutyl amidine amine dihydrochloride; Said chain-transfer agent is a n-dodecyl mercaptan; Said buffer reagent is NaHCO
3
Said oxygenant is a tertbutyl peroxide; Said reductive agent is rongalite or sodium sulfite anhy 96;
Said neutralizing agent is ammoniacal liquor, quadrol, triethylamine or trolamine;
Said linking agent is 2; 2,4-trimethylammonium hexanedioyl two [2-ethyl Soluol XC 100], 1,1-azelaoyl nonanedioyl two [2-methylaziridine], 1; In 1-(1, the 3-phenylene dicarbonyl) two [2-methylaziridines], acetic acid zirconium ammonium, zinc acetate ammonium, chromium acetate and the zinc acetate one or both.
Be further to realize the object of the invention, said stratum nucleare is selected from sulfo-succinic acid Nonyl pheno (10) ether-ether disodium (MS21), ethoxylated alkyl ether ammonium sulfate (CO-436), oxyethyl group disodium sulfosuccinate, sodium alkyl naphthalene sulfonate, alkyl alcohol T 46155 ammonium sulfate, alkyl ethoxylated ammonium sulfate, dioctyl sodium sulphosuccinate and the isopropyl naphthalene sodium sulfonate one or both with emulsifying agent.
By weight percentage, said middle layer monomer also comprises 0~5% vinyl monomer mutually; Said vinyl monomer is vinylbenzene, vinyl acetate, vinyl cyanide, vinylchlorid or tertiary ethylene carbonate.
Said composition of raw materials also comprises 0-10 part solubility promoter, and said solubility promoter is one or both in lauryl alcohol ester, ethylene glycol monobutyl ether, propylene glycol monobutyl ether, glycol dimethyl ether and the diethylene glycol ether acetic ester.
Said composition of raw materials also comprises 0.05~1.0 part of 0.05~1.0 part of moistening flatting agent and skimmer; Said moistening flatting agent BYK 346 or BYK348 (being polyether-modified YSR 3286/dipropylene glycol monomethyl ether solution); Said skimmer is silicone antifoam agent BYK024 (chemical constitution is organic silicon modified by polyether/dipropylene glycol monomethyl ether solution) and/or BYK019 (chemical constitution is broken bubble polymkeric substance and polysiloxane mixture).
The compound preparation method with the single-component low temperature self-crossing emulsion sizing agent of above-mentioned paper comprises the steps:
(1) will fill a prescription in deionized water weight 20~40%, nuclear layer monomer phase, anionic emulsifier carry out preparatory emulsification and obtain pre-emulsion A;
(2) get deionized water weight in the prescription 20~40%, middle layer monomer phase, polymerizable emulsifier carry out preparatory emulsification and obtain pre-emulsion B;
(3) get deionized water weight in the prescription 20~40%, outer shell monomer phase, polymerizable emulsifier carry out preparatory emulsification and obtain pre-emulsion C;
(4) initiator being mixed with weight percent concentration is 10~20% aqueous solution D; It is 10~20% aqueous solution E that reductive agent is mixed with weight percent concentration; It is 15~30% aqueous solution F that neutralizing agent is mixed with weight percent concentration;
(5) in container, add deionized water weight 5~15%, 5~15% preparations of buffer reagent sodium hydrogencarbonate, initiator solution D weight obtain bed material, heat up 75~78 ℃, add 3~12% of pre-emulsion A weight, reaction formation seed emulsion; Controlled temperature is 78~82 ℃, drips 20~40% of residue pre-emulsion A and initiator solution D weight, and insulation 0.5~1h carries out slaking, drips 20~40% of pre-emulsion B and initiator solution D weight then, and insulation 0.5~1h carries out slaking; Drip 20~40% of pre-emulsion C and initiator solution D weight again; Dropwise the back and add chain-transfer agent; Be warming up to 84~90 ℃, insulation 0.5~1h; Be cooled to 63~70 ℃ then, be incubated 15~30min after adding oxygenant, be incubated 0.5~1h after dripping reductive agent aqueous solution E again, eliminate the residual free monomer; Be cooled to below 40 ℃, stir adding neutralizing agent aqueous solution F adjusting pH value 6~8 down, add linking agent, promptly obtain the acrylate adhesive emulsion.
With respect to prior art, the present invention has following effect:
The present invention prepares middle layer and shell pre-emulsion with a small amount of anionic emulsifier preparation nuclear emulsion with the polymerizable emulsification system, adopts preparatory emulsification semi-continuous seed emulsion polymerization technology, hangs down the soap letex polymerization, makes few stable fine and smooth emulsion of slagging tap; Design through particle structure; Introduce polyfunctional acrylic ester, carboxyl/epoxy group(ing)/carboxamido-group, the multiple interpenetrating(polymer)networks cross-linking system of vinylsiloxane; And acetoacetyl/diamines crosslinked (or carbonyl/hydrazine is crosslinked), the crosslinked promotion system of metals ion (or polyfunctional aziridine), make emulsion particle with three layers of microfacies structure of nucleocapsid; Do not contain organic solvent, release formaldehyde does not contain the violated chemical of APEO, phthalic ester and so on.Can realize low-temperature self-crosslinking, it is compound to be applied to paper, good with the printing ink affinity, adhesive power, stripping strength and hold the viscous force height, and water-fast wet-hot aging performance is good.
The compound following performance index that reach of paper of the present invention with low-temperature self-crosslinking sizing agent emulsion:
Solid content: 40~50%
PH value: 7.0~8.0
Viscosity: 200~300mPas
Surface tension: 35~38mN/m
Glued membrane glossiness: 65~70%
Package stability:>6 months
Mechanical stability (the centrifugal 30min of 3000rpm): no breakdown of emulsion layering
Freeze-thaw stability: qualified
Initial bonding strength (steel ball number): 7
Hold viscous force>20h
180 ° of stripping strength:>5.0N/cm
Ratio of printing ink transfer: 100%
Impression, concavo-convex test: non-foaming
Embodiment
For better understanding the present invention, below in conjunction with embodiment the present invention is done further explanation, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes.
Embodiment 1:
(unit is the compound gluing agent emulsion of table 1 paper E1 monomer prescription: g)
Annotate: HA refers to that mass ratio is 1: 1 the SY-Monomer G and the mixture of acrylic amide
Compound method:
The preparation of nuclear emulsion: earlier 30g deionized water, 0.3g sulfo-succinic acid Nonyl pheno (10) ether-ether disodium (MS21), nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Getting 0.4g ammonium persulphate (APS), to be mixed with weight percent concentration be 3% initiator solution D (APS aqueous solution D); Getting the 0.15g rongalite, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 15g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D weight obtains bed material, heats up 78 ℃, and 3% reaction that adds the pre-emulsion A gross weight of 3% weight forms seed emulsion; Heat up 80 ℃, begin to drip residue pre-emulsion A, and drip 30% of APS aqueous solution D gross weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 35g deionized water, 2-acrylamido-2-methyl-propyl sulfonic acid 0.4g, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Getting 30g deionized water, 0.4g sodium vinyl sulfonate, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of APS aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips residue APS aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.025g;
Be warming up to 90 ℃ after dropwising then, insulation 1h; Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips rongalite aqueous solution E again, eliminates the residual free monomer;
Be cooled to below 40 ℃; Use weight percent concentration be 20% ethylenediamine solution to regulate ph value of emulsion be 7, add to get 1.5g acetic acid zirconium ammonium to be mixed with weight percent concentration be 20% the aqueous solution, add in the emulsion; 200 mesh filter screens filter discharging, promptly obtain acrylate adhesive emulsion E1.
Embodiment 2:
(unit is the compound gluing agent emulsion of table 2 paper E2 monomer prescription: g)
Compound method:
The preparation of nuclear emulsion: earlier 32g deionized water, 0.25g ethoxylated alkyl ether ammonium sulfate (CO-436), nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Get 2,2-azo diisobutyl amidine amine dihydrochloride (V50) 0.4g preparation weight percent concentration is 3% initiator solution D; Getting the 0.15g sodium sulfite anhy 96, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 12g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D gross weight obtains bed material, heats up 75 ℃, and 8% reaction that adds pre-emulsion A gross weight forms seed emulsion; Heat up 78 ℃, begin to drip residue pre-emulsion A, and drip 30% of V50 aqueous solution D gross weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 36g deionized water, 0.4g alkylamidoalkyl sodium vinyl sulfonate, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Getting 30g deionized water, 0.4g methacryloxy ethyl sulfonic acid sodium, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of V50 aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips remaining V50 aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.05g;
Be warming up to 84 ℃ after dropwising, insulation 1h;
Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips aqueous solution of sodium bisulfite E again, eliminates the residual free monomer;
Be cooled to below 40 ℃; Use is 20% trolamine aqueous solution adjusting ph value of emulsion 7.5 with weight percent concentration; Getting the 0.8g adipic dihydrazide, to be mixed with weight percent concentration be 20% the aqueous solution; Add in the emulsion, 200 mesh filter screens filter discharging, promptly obtain acrylate adhesive emulsion E2.
Embodiment 3:
(unit is the compound gluing agent emulsion of table 3 paper E3 monomer prescription: g)
Compound method:
The preparation of nuclear emulsion: earlier 32g deionized water, 0.3g oxyethyl group disodium sulfosuccinate, nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Getting 0.4g ammonium persulphate (APS) preparation weight percent concentration is 3% initiator solution D; Getting the 0.15g rongalite, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 18g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D gross weight obtains bed material, heats up 80 ℃, and 8% reaction that adds pre-emulsion A gross weight forms seed emulsion; Heat up 82 ℃, begin to drip residue pre-emulsion A, and drip 30% of APS aqueous solution D gross weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 30g deionized water, 0.4g styryl sodium sulfonate, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Getting 30g deionized water, 0.4g allyl group hydroxypropyl azochlorosulfonate acid sodium, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of APS aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips residue APS aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.035g;
Be warming up to 88 ℃ after dropwising, insulation 1h;
Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips rongalite aqueous solution E again, eliminates the residual free monomer;
Be cooled to below 40 ℃; The use weight percent concentration is 20% triethylamine aqueous solution adjusting pH value 7.8, gets 1.5g 2,2; It is 20% the aqueous solution that 4-trimethylammonium hexanedioyl two [2-ethyl Soluol XC 100] is mixed with weight percent concentration; Add in the emulsion, 200 mesh filter screens filter discharging, promptly obtain acrylate adhesive emulsion E3.
Embodiment 4:
(unit is the compound gluing agent emulsion of table 4 paper E4 monomer prescription: g)
Compound method:
The preparation of nuclear emulsion: earlier 24g deionized water, 0.3g dioctyl sodium sulphosuccinate, nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Getting 0.4g ammonium persulphate (APS) preparation weight percent concentration is 3% initiator solution D; Getting the 0.15g sodium sulfite anhy 96, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 20g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D gross weight obtains bed material, heats up 78 ℃, and 8% reaction that adds pre-emulsion A gross weight forms seed emulsion; Heat up 82 ℃, begin to drip residue pre-emulsion A, and drip 30% of APS aqueous solution D gross weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 36g deionized water, 2-acrylic amide-2-methyl propane sulfonic acid sodium salt 0.4g, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Get 30g deionized water, 0.4g allyloxy nonyl phenolic ether and sulfonated bodies thereof, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of APS aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips residual A PS aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.10g;
Be warming up to 90 ℃ after dropwising, insulation 1h;
Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips aqueous solution of sodium bisulfite E again, eliminates the residual free monomer;
Be cooled to below 40 ℃; Use weight percent concentration be 20% ethylenediamine solution to regulate ph value of emulsion be 7.5, get 1.2g 1,1-(1; The 3-phenylene dicarbonyl) to be mixed with weight percent concentration be 20% the aqueous solution to two [2-methylaziridines]; Add in the emulsion, 200 mesh filter screens filter discharging, promptly obtain acrylate adhesive emulsion E4.
Embodiment 5:
(unit is the compound gluing agent emulsion of table 5 paper E5 monomer prescription: g)
Compound method:
The preparation of nuclear emulsion: earlier 35g deionized water, 0.3g isopropyl naphthalene sodium sulfonate, nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Getting 0.4g ammonium persulphate (APS) preparation weight percent concentration is 3% initiator solution D; Getting the 0.15g rongalite, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 20g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D gross weight obtains bed material, heats up 78 ℃, and 8% reaction that adds pre-emulsion A gross weight forms seed emulsion; Heat up 84 ℃, begin to drip residue pre-emulsion A, and drip 30% of APS aqueous solution D gross weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 35g deionized water, 0.4g sodium vinyl sulfonate, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Getting 30g deionized water, 3-allyloxy-2-hydroxyl-1-propane sulfonic acid sodium salt 0.4g, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of APS aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips residual A PS aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.045g;
Be warming up to 90 ℃ after dropwising, insulation 1h;
Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips rongalite aqueous solution E again, eliminates the residual free monomer;
Be cooled to below 40 ℃; Using weight percent concentration is that to regulate ph value of emulsion be 7.5 for 20% the trolamine aqueous solution; Getting the 0.85g adipic dihydrazide, to be mixed with weight percent concentration be 20% the aqueous solution; Add in the emulsion, 200 mesh filter screens filter discharging, promptly obtain acrylate adhesive emulsion E5.
Embodiment 6:
(unit is the compound gluing agent emulsion of table 6 paper E6 monomer prescription: g)
Compound method:
The preparation of nuclear emulsion: earlier 30g deionized water, 0.3g isopropyl naphthalene sodium sulfonate, nuclear layer monomer phase I are carried out preparatory emulsification and obtain pre-emulsion A; Getting 0.4g ammonium persulphate (APS) preparation weight percent concentration is 3% initiator solution D; Getting the 0.15g sodium sulfite anhy 96, to be mixed with weight percent concentration be 10~20% aqueous solution E.10% preparation that in four-hole boiling flask, adds 20g deionized water, 0.3g buffer reagent sodium hydrogencarbonate, APS aqueous solution D weight obtains bed material, heats up 78 ℃, and 8% reaction that adds pre-emulsion A weight forms seed emulsion; Heat up 80 ℃, begin to drip residue pre-emulsion A, and drip 30% of APS aqueous solution D weight synchronously, insulation 0.5h makes the nuclear emulsion;
The preparation of middle layer and outer pre-emulsion: get 40g deionized water, 0.4g sodium vinyl sulfonate, middle layer monomer mutually II carry out preparatory emulsification and obtain pre-emulsion B; Getting 30g deionized water, 3-allyloxy 2-hydroxyl-1-propane sulfonic acid sodium salt 0.4g, shell monomers phase III carries out preparatory emulsification and obtains pre-emulsion C;
Middle layer and shell batch feed: in the nuclear emulsion, drip pre-emulsion B, and drip 30% of APS aqueous solution D gross weight synchronously; Insulation 0.5h carries out slaking, begins to drip pre-emulsion C, and drips residual A PS aqueous solution D synchronously; After dropwising, add the positive Dodecyl Mercaptan of 0.075g;
Be warming up to 85 ℃ after dropwising, insulation 1h;
Lower the temperature 65 ℃, add 0.15g tertbutyl peroxide TBHP, insulation 15~30min drips aqueous solution of sodium bisulfite E again, eliminates the residual free monomer;
Be cooled to below 40 ℃, use weight percent concentration be 20% ethylenediamine solution to regulate ph value of emulsion be 7.5, getting the 0.9g zinc acetate, to be mixed with weight percent concentration be 20% the aqueous solution, adds in the emulsion, promptly obtains acrylate adhesive emulsion E6.
The compound gluing agent emulsion of paper that respectively the foregoing description 1~6 is obtained carries out multiple film test on bridge-type dry type composite film machine, setting drying tunnel temperature is 60 ℃; 40 ℃ of press bonding roller temperature; Pressure is 15kgf, and with the compound 320g enamelled paper of PET film (thickness 20 μ m), the butt spread is about 3.0g/m
2, adopt electronic tensile machine to measure 180 ° of stripping strengths (with reference to GB/T2792-1998); Composite package was placed 30 days in climatic chamber (50 ℃, humidity 80%), measured stripping strength once more, the persistence of cohesive strength (characterizing) under the checking hot and humid environment with the stripping strength conservation rate; Measure water tolerance (characterizing with water-intake rate) with reference to GB-15330-1994, the result is as shown in table 7:
The application performance of the compound gluing agent emulsion of table 7 paper
This shows; The prepared acrylic ester emulsion sizing agent of the present invention shows that stripping strength height, wet-hot aging performance are good, the excellent properties of water-tolerant; In conjunction with the fundamental property index of aforementioned sizing agent emulsion, the paper that the present invention makes is compound can to satisfy application requiring with low-temperature self-crosslinking sizing agent emulsion.
Can be equipped with auxiliary agent concrete with reference to following application example before using applying glue, earlier acrylic ester emulsion and staybelite emulsion pieced together being mixed evenly, the adding solubility promoter adds moistening flatting agent, skimmer, sanitas more successively and is uniformly dispersed, to improve sizing efficiency;
Application example prescription (meter by weight):
Acrylic ester emulsion is embodiment 1-6 preparation.Said solubility promoter can be one or both in lauryl alcohol ester, ethylene glycol monobutyl ether, propylene glycol monobutyl ether, glycol dimethyl ether and the diethylene glycol ether acetic ester.Deuchem MB-11 is produced by the modest company of Shanghai moral, and moistening flatting agent BYK 346 and/or BYK348, skimmer BYK024 or BYK019 are provided by German Bi Ke chemistry (Guangzhou).
Above-mentioned embodiment has just been enumerated exemplary embodiments of the present invention; Can only think explanation of the present invention rather than restriction the present invention; Those skilled in the art can do respective change and improvement under the specification sheets indication, but should think in patent book protection domain of the present invention.