CN116769434B - Air chain riveting glue and processing technology thereof - Google Patents
Air chain riveting glue and processing technology thereof Download PDFInfo
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- CN116769434B CN116769434B CN202311075196.6A CN202311075196A CN116769434B CN 116769434 B CN116769434 B CN 116769434B CN 202311075196 A CN202311075196 A CN 202311075196A CN 116769434 B CN116769434 B CN 116769434B
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- 239000003292 glue Substances 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 title abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 46
- 239000002904 solvent Substances 0.000 claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 12
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 8
- -1 aryl boroxine Chemical compound 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 34
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 19
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- 239000002243 precursor Substances 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 10
- 239000002244 precipitate Substances 0.000 claims description 9
- 125000006325 2-propenyl amino group Chemical group [H]C([H])=C([H])C([H])([H])N([H])* 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- JRZCGMGYTDEOII-UHFFFAOYSA-N butanedioic acid;2-sulfobutanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)CC(C(O)=O)S(O)(=O)=O JRZCGMGYTDEOII-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- SIAVMDKGVRXFAX-UHFFFAOYSA-N 4-carboxyphenylboronic acid Chemical compound OB(O)C1=CC=C(C(O)=O)C=C1 SIAVMDKGVRXFAX-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000005457 ice water Substances 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- 239000012046 mixed solvent Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000001804 emulsifying effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000012670 alkaline solution Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000003002 pH adjusting agent Substances 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims 2
- LRMHFDNWKCSEQU-UHFFFAOYSA-N ethoxyethane;phenol Chemical compound CCOCC.OC1=CC=CC=C1 LRMHFDNWKCSEQU-UHFFFAOYSA-N 0.000 claims 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 1
- 235000011130 ammonium sulphate Nutrition 0.000 claims 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 abstract 1
- 125000003827 glycol group Chemical group 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002313 adhesive film Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- BGECDVWSWDRFSP-UHFFFAOYSA-N borazine Chemical group B1NBNBN1 BGECDVWSWDRFSP-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000009974 thixotropic effect Effects 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Adhesives based on derivatives of such polymers
-
- 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
-
- 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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/08—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides air-setting nail glue and a processing technology thereof, belonging to the technical field of special adhesive preparation, and comprising a polymerization monomer, an emulsifying agent, an initiating agent, a pH regulator and a solvent, wherein the polymerization monomer comprises acrylamide, n-butyl acrylate, methyl methacrylate and a functional monomer, and the functional monomer is allyl functionalized aryl boroxine connected by a polyethylene glycol chain segment.
Description
Technical Field
The invention relates to the technical field of preparation of special adhesives, in particular to air chain riveting glue and a processing technology thereof.
Background
The chain riveting is a novel woodworking riveting which bonds single nails in regular arrangement by using an adhesive or other modes. The chain riveting is typically placed in a special nail gun and driven by electricity or compressed air to shoot into a wood board, plastic or other composite material by impact. The nail gun is widely used in the aspects of building, decoration, furniture, packaging, advertisement decoration, sofa, leather shoes, leather products and the like due to the advantages of high efficiency, uniform and consistent nail stress, convenient use and the like, and has a great deal of requirements as a row nail of a bullet. The general production process of the chain riveting is as follows: the round wire is straightened and flattened by a flattening machine and is collected on a certain number of bobbins; and gluing by a gluing machine, drying to prepare a wire belt, feeding the wire belt into a forming host machine for cutting, forming and heading, thereby completing the whole manufacturing procedure.
In general, the nails emitted by the air nail gun are collectively called air nails, and the glue used by the air nails is a key raw material for manufacturing the air nails, which directly affects the quality of the air nails. In the prior art, the air-chain riveting glue is mostly prepared by mixing nitrocotton, alkyd resin and solvent, and is glued by quick-drying and volatilizing the solvent, and has the characteristics of good bonding strength and quick drying, but the air-chain riveting glue still has the following defects: in order to obtain high bonding strength and quick drying effect, the adhesive is generally required to have higher viscosity so that the adhesive can be quickly bonded on the surface of the air nails, but uneven coating is easily caused by the high viscosity, uneven stress on products can be caused in the aspect of uneven coating, and the products are easily cracked under the action of external force, so that the manufactured air nails are easily cracked when being packaged and transported, and on the other hand, the surface smoothness of the air nails is poor due to uneven coating, so that the friction force between the air nails and an air nail gun is increased when the air nails are used, the phenomenon of clamping nails is easily caused, and the working efficiency is influenced.
Disclosure of Invention
Aiming at the problems, the invention provides air chain riveting glue and a processing technology thereof.
The aim of the invention is realized by adopting the following technical scheme:
the air bent nail glue comprises a polymerization monomer, an emulsifying agent, an initiating agent, a pH regulator and a solvent, wherein the polymerization monomer comprises acrylamide, n-butyl acrylate, methyl methacrylate and a functional monomer, and the preparation method of the functional monomer comprises the following steps:
(1) Preparation of the precursor
Weighing 4-carboxyphenylboronic acid, dispersing and dissolving in a thionyl chloride solvent, heating to 70-80 ℃, maintaining the temperature, stirring and refluxing for 12-16 hours, cooling slightly after the reaction is completed, decompressing and evaporating the solvent to obtain a white powdery precursor, and dissolving the precursor in an N, N-dimethylformamide solvent to obtain a precursor solution; wherein the mixing ratio of the 4-carboxyphenylboronic acid to the thionyl chloride is 1g/15-20mL;
(2) Monomer preparation
Weighing allylamino difunctional end-capped polyethylene glycol and dissolving the polyethylene glycol in N, N-dimethylformamide, adding triethylamine under ice-water bath conditions, stirring and mixing for 1-2h, keeping the ice-water bath conditions, dropwise adding the precursor solution while stirring, continuing to perform heat preservation and stirring reaction for 2-4h after the dropwise adding is finished, returning to room temperature after the reaction is finished, continuing to perform stirring reaction for 0.5-1h, adding dichloromethane into a reaction system for dilution, stirring until no precipitate is generated, separating out the precipitate, washing the precipitate with dichloromethane for a plurality of times, vacuum drying, and crushing and grinding to obtain the functional monomer; wherein the molecular weight of the allylamino difunctional group end-capped polyethylene glycol is 200-600, and the viscosity is 15-50cst.
In some preferred embodiments, the mass ratio of the allylamino difunctional capped polyethylene glycol to the triethylamine, the precursor in step (2) is 10: (5-5.5): (4-4.3).
In some preferred embodiments, the composition comprises, by weight, 40-50 parts of a polymeric monomer, 0.5-2 parts of an emulsifier, 0.2-0.4 parts of an initiator, 0.1-8 parts of a pH regulator, and 80-100 parts of a solvent.
In some preferred embodiments, the mass ratio of the acrylamide to the n-butyl acrylate, the methyl methacrylate, and the functional monomer in the polymerized monomer is (1.8-2): (1.4-1.6): (2.4-2.8): 1.
in some preferred embodiments, the emulsifier is one or two of sodium dodecyl sulfate, sorbitan polyoxyethylene ether fatty acid ester, ammonium alkylphenol ether sulfate, sodium alkylphenol ether sulfosuccinate, succinate sulfosuccinate, and acrylic acid amino isopropyl sulfonic acid.
In some preferred embodiments, the initiator is one or both of ammonium sulfonate, potassium persulfate, ammonium persulfate, dibenzoyl peroxide, and azobisisobutyronitrile.
In some preferred embodiments, the pH adjuster is an alkaline solution that is aqueous ammonia, sodium hydroxide solution, or potassium hydroxide solution.
In some preferred embodiments, the solvent is deionized water or a mixed solvent of deionized water and an organic solvent, and the organic solvent is one or two of N, N-dimethylformamide, ethanol, and methanol.
The invention also provides a processing technology of the air chain riveting glue, which comprises the following steps:
s1, preparing the functional monomer for later use;
s2, weighing the raw materials according to the ratio for standby;
s3, dissolving the emulsifier by the solvent, heating to 50-60 ℃ under stirring at the rotating speed of 800-1000r/S of a high-speed emulsifying machine, adding the polymerized monomer, and continuously stirring for 10-30min to obtain a pre-emulsion;
and S4, heating the pre-emulsion to 70-85 ℃, slowly dripping the initiator solution obtained by dissolving the solvent while stirring, keeping the temperature and stirring for 3-5 hours after dripping, cooling to room temperature after finishing the reaction, adding the pH regulator to adjust the pH value to 8-9, and exhausting to obtain the air-chain riveting glue.
The invention also provides an application method of the air chain riveting glue, in particular to application as a chain riveting adhesive.
The beneficial effects of the invention are as follows:
aiming at the problems of high viscosity and poor film forming smoothness of the air-setting nail glue in the prior art, the invention provides novel air-setting nail glue which has good bonding performance and self-leveling performance, can form a surface with high smoothness while ensuring good bonding performance, has higher practical application value, and particularly adopts various monomer copolymerization to polymerize acrylamide and n-butyl acrylate according to a certain proportion, the acrylamide polymerization product has good leveling property on an adhesive system, then quantitatively introduces n-butyl acrylate to adjust the bonding performance of the polymer adhesive product, simultaneously the introduction of n-butyl acrylate serving as a hydrogen bond acceptor promotes the formation of a large amount of non-covalent interactions with amide groups, on one hand, the interaction force of hydrogen bonds is weaker, the hydrogen bonds are easy to be sheared and destroyed, and the adhesive is recovered when the shear is removed, the invention further provides good thixotropic property for the adhesive system, on the other hand, the adhesive system is favorable for repairing the adhesive film, the adhesive film is improved in stability, the adhesive film is endowed with the comprehensive functional characteristics of buffering, bonding, passivation and repairing, the stress in the product transportation process is effectively dissipated, the product is not easy to crack in the product transportation process, and further, the invention further improves the fluidity and repairing performance of the adhesive film by introducing the borazine structure, in particular, the borazine structure with a dynamic covalent bond component is introduced, the copolymerization long chain structure is crosslinked to form a three-dimensional network structure, the aqueous adhesive system with high adhesive film strength and good rigidity is prepared, in the aqueous system, the exposed borazine on the surface of the polymer tends to be transformed into a free state, so that abundant free boric acid can be generated, the fluidity of a molecular chain segment is increased, and the borazine is transformed into a polymerization crosslinking state when the coating is dehydrated, and further achieves good leveling property and meanwhile obtains bonding strength.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1
The air-chain riveting glue comprises 46 parts of a polymeric monomer, 0.6 part of sodium dodecyl sulfate, 0.4 part of succinate sulfosuccinate, 0.3 part of potassium persulfate, 0.9 part of 20wt% ammonia water and 84 parts of a solvent in parts by weight;
wherein the polymerized monomer consists of the following components in percentage by mass of 1.82:1.48:2.5:1, acrylamide, n-butyl acrylate, methyl methacrylate and functional monomers; the solvent is a mixed solvent of deionized water and ethanol (v/v=8:2);
the preparation method of the functional monomer comprises the following steps:
(1) Preparation of the precursor
Weighing 4-carboxyphenylboronic acid, dispersing and dissolving in a thionyl chloride solvent, heating to 75 ℃, maintaining the temperature, stirring and refluxing for 12 hours, cooling to 60 ℃ after the reaction is completed, decompressing and evaporating the solvent to obtain a white powdery precursor, and dissolving the precursor in an N, N-dimethylformamide solvent to obtain a precursor solution; wherein the mixing ratio of the 4-carboxyphenylboronic acid to the thionyl chloride is 1g/15mL;
(2) Monomer preparation
Weighing allylamino difunctional end-capped polyethylene glycol (molecular weight 400-600, viscosity 50cst, provided by Seiran chemical technology Co., ltd.) and dissolving in N, N-dimethylformamide, adding triethylamine under ice water bath condition, stirring and mixing for 1h, keeping ice water bath condition, dropwise adding the precursor solution while stirring, continuing to keep the temperature and stirring for 3h after dropwise adding, recovering to room temperature after the reaction is completed, continuing stirring for 0.5h, adding dichloromethane into the reaction system for dilution, stirring until no precipitate is generated, separating out precipitate, washing the precipitate with dichloromethane for several times, vacuum drying, crushing and grinding to obtain the functional monomer; wherein the mass ratio of the allylamino difunctional group end-capped polyethylene glycol to the triethylamine to the precursor is 10:5.3:4.2;
the processing technology of the air chain riveting glue comprises the following steps:
s1, preparing the functional monomer for later use;
s2, weighing the raw materials according to the ratio for standby;
s3, dissolving the sodium dodecyl sulfate and the succinate sulfosuccinate in the solvent, heating to 50-60 ℃ under stirring at the rotating speed of 800-1000r/S of a high-speed emulsifying machine, adding the polymerized monomer, and continuously stirring for 10-30min to obtain a pre-emulsion;
and S4, heating the pre-emulsion to 70-85 ℃, slowly dripping the potassium persulfate solution obtained by dissolving the solvent while stirring, keeping the temperature after dripping, stirring for reaction for 4 hours, cooling to room temperature after the reaction is finished, adding ammonia water to adjust the pH value to 8-9, and exhausting to obtain the air-chain riveting glue.
Comparative example 1
The air-chain riveting glue comprises 46 parts of a polymeric monomer, 0.6 part of sodium dodecyl sulfate, 0.4 part of succinate sulfosuccinate, 0.3 part of potassium persulfate, 0.9 part of 20wt% ammonia water and 84 parts of a solvent in parts by weight;
wherein the polymerized monomer consists of the following components in percentage by mass of 1.82:1.48:2.5 acrylamide, n-butyl acrylate and methyl methacrylate; the solvent is a mixed solvent of deionized water and ethanol (v/v=8:2);
the processing technology of the air chain riveting glue comprises the following steps:
s1, weighing the raw materials according to the ratio for standby;
s2, dissolving the sodium dodecyl sulfate and the succinate sulfosuccinate in the solvent, heating to 50-60 ℃ under stirring at the rotating speed of 800-1000r/S of a high-speed emulsifying machine, adding the polymerized monomer, and continuously stirring for 10-30min to obtain a pre-emulsion;
and S3, heating the pre-emulsion to 70-85 ℃, slowly dripping the potassium persulfate solution obtained by dissolving the solvent while stirring, keeping the temperature after dripping, stirring for reaction for 4 hours, cooling to room temperature after the reaction is finished, adding ammonia water to adjust the pH value to 8-9, and exhausting to obtain the air-chain riveting glue.
Comparative example 2
The air-chain riveting glue comprises 46 parts of a polymeric monomer, 0.6 part of sodium dodecyl sulfate, 0.4 part of succinate sulfosuccinate, 0.3 part of potassium persulfate, 0.9 part of 20wt% ammonia water and 84 parts of a solvent in parts by weight;
wherein the polymerized monomer consists of the following components in percentage by mass of 1.48:2.5:1, n-butyl acrylate, methyl methacrylate and functional monomers; the solvent is a mixed solvent of deionized water and ethanol (v/v=8:2);
the preparation method of the functional monomer and the processing technology of the air chain riveting glue are the same as those of the embodiment 1.
Comparative example 3
The air-chain riveting glue comprises 46 parts of a polymeric monomer, 0.6 part of sodium dodecyl sulfate, 0.4 part of succinate sulfosuccinate, 0.3 part of potassium persulfate, 0.9 part of 20wt% ammonia water and 84 parts of a solvent in parts by weight;
wherein the polymerized monomer consists of the following components in percentage by mass of 1.82:2.5:1, methyl methacrylate and functional monomers; the solvent is a mixed solvent of deionized water and ethanol (v/v=8:2);
the preparation method of the functional monomer and the processing technology of the air chain riveting glue are the same as those of the embodiment 1.
Experimental example
The adhesive properties of the adhesives described in example 1 and comparative examples 1-3 were compared, wherein the adhesive strength of the adhesives was determined with reference to GB/T39289-2020; the self-leveling degree of the adhesive is measured by referring to GB/T33403-2016; the height measurement reference QB/T1151-1991 of the whole row of steel nails without breaking after falling; the staple rate is the percentage of times of stapling in a thousand times of steel staple ejection test; the thixotropic value is the viscosity ratio at a rotational speed of 6r/min and 60r/min, and the viscosity is determined in accordance with GB/T2794-1995.
The measurement results are shown in Table 1.
According to the measurement results of the embodiment 1, the air-row nail glue can have good bonding performance (3.17 MPa), self-leveling performance (1.95 mm) and self-repairing performance (thixotropic value 3.4), and can form a surface with high smoothness to reduce the clip rate (less than 0.1 percent) while ensuring good bonding performance (falling height of more than 50 cm); according to the embodiment 1 and the comparative example 1, the introduction of the functional monomer can improve the leveling property of the adhesive surface, reduce the friction with a nailing gun and further greatly reduce the stapling rate while ensuring good adhesive property (the falling height is more than 50 cm); from example 1 and comparative example 2, it is seen that the introduction of the acrylamide monomer greatly improved the self-leveling property of the adhesive, which suggests that the acrylamide monomer plays a key role in the self-leveling property of the adhesive, while the combination of acrylamide and n-butyl acrylate plays a key role in the thixotropic property and adhesive property of the adhesive in combination with comparative example 3.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The air nails glue is characterized by comprising, by weight, 40-50 parts of polymerized monomers, 0.5-2 parts of emulsifying agents, 0.2-0.4 part of initiators, 0.1-8 parts of pH regulators and 80-100 parts of solvents, wherein the polymerized monomers comprise acrylamide, n-butyl acrylate, methyl methacrylate and functional monomers, and the preparation method of the functional monomers comprises the following steps:
(1) Preparation of the precursor
Weighing 4-carboxyphenylboronic acid, dispersing and dissolving in a thionyl chloride solvent, heating to 70-80 ℃, maintaining the temperature, stirring and refluxing for 12-16 hours, cooling slightly after the reaction is completed, decompressing and evaporating the solvent to obtain a white powdery precursor, and dissolving the precursor in an N, N-dimethylformamide solvent to obtain a precursor solution; wherein the mixing ratio of the 4-carboxyphenylboronic acid to the thionyl chloride is 1g/15-20mL;
(2) Monomer preparation
Weighing allylamino difunctional end-capped polyethylene glycol and dissolving the polyethylene glycol in N, N-dimethylformamide, adding triethylamine under ice-water bath conditions, stirring and mixing for 1-2h, keeping the ice-water bath conditions, dropwise adding the precursor solution while stirring, continuing to perform heat preservation and stirring reaction for 2-4h after the dropwise adding is finished, returning to room temperature after the reaction is finished, continuing to perform stirring reaction for 0.5-1h, adding dichloromethane into a reaction system for dilution, stirring until no precipitate is generated, separating out the precipitate, washing the precipitate with dichloromethane for a plurality of times, vacuum drying, and crushing and grinding to obtain the functional monomer; wherein the molecular weight of the allylamino difunctional group end-capped polyethylene glycol is 200-600, and the viscosity is 15-50cst;
in the step (2), the mass ratio of the allylamino difunctional group-terminated polyethylene glycol to the triethylamine to the precursor is 10: (5-5.5): (4-4.3);
the mass ratio of the acrylamide to the n-butyl acrylate, the methyl methacrylate and the functional monomer in the polymerized monomer is (1.8-2): (1.4-1.6): (2.4-2.8): 1.
2. the air bent nail glue according to claim 1, wherein the emulsifier is one or two of sodium dodecyl sulfate, sorbitan polyoxyethylene ether fatty acid ester, alkyl phenol ether ammonium sulfate, alkyl phenol ether sulfosuccinate sodium salt, succinate sulfosuccinate and acrylic acid amino isopropyl sulfonic acid.
3. The air strip nail glue of claim 1, wherein the initiator is one or two of potassium persulfate, ammonium persulfate, dibenzoyl peroxide, and azobisisobutyronitrile.
4. The air strip nail glue of claim 1, wherein the pH adjuster is an alkaline solution, and the alkaline solution is ammonia water, sodium hydroxide solution or potassium hydroxide solution.
5. The air-chain riveting glue according to claim 1, wherein the solvent is deionized water or a mixed solvent of deionized water and an organic solvent, and the organic solvent is one or two of N, N-dimethylformamide, ethanol and methanol.
6. A process for preparing air-chain riveting glue according to any one of claims 1-5, comprising the steps of:
s1, preparing the functional monomer for later use;
s2, weighing the raw materials according to the ratio for standby;
s3, dissolving the emulsifier by the solvent, heating to 50-60 ℃ under stirring at the rotating speed of 800-1000r/S of a high-speed emulsifying machine, adding the polymerized monomer, and continuously stirring for 10-30min to obtain a pre-emulsion;
and S4, heating the pre-emulsion to 70-85 ℃, slowly dripping the initiator solution obtained by dissolving the solvent while stirring, keeping the temperature and stirring for 3-5 hours after dripping, cooling to room temperature after finishing the reaction, adding the pH regulator to adjust the pH value to 8-9, and exhausting to obtain the air-chain riveting glue.
7. Use of the air-chain riveting glue according to any one of claims 1-5 as a chain riveting adhesive.
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