CN115141582A - Non-ironing jelly-like waterproof veneer glue and preparation method thereof - Google Patents
Non-ironing jelly-like waterproof veneer glue and preparation method thereof Download PDFInfo
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- CN115141582A CN115141582A CN202210750748.8A CN202210750748A CN115141582A CN 115141582 A CN115141582 A CN 115141582A CN 202210750748 A CN202210750748 A CN 202210750748A CN 115141582 A CN115141582 A CN 115141582A
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- polyvinyl alcohol
- jelly
- ironing
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- 239000003292 glue Substances 0.000 title claims abstract description 25
- 238000010409 ironing Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 239000000178 monomer Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 32
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 32
- 239000004014 plasticizer Substances 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 239000003755 preservative agent Substances 0.000 claims abstract description 9
- 230000002335 preservative effect Effects 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims abstract 4
- 239000011259 mixed solution Substances 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 30
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000005303 weighing Methods 0.000 claims description 14
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 13
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 13
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- ROPXFXOUUANXRR-YPKPFQOOSA-N bis(2-ethylhexyl) (z)-but-2-enedioate Chemical compound CCCCC(CC)COC(=O)\C=C/C(=O)OCC(CC)CCCC ROPXFXOUUANXRR-YPKPFQOOSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000006179 pH buffering agent Substances 0.000 claims description 7
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 6
- 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 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 239000004302 potassium sorbate Substances 0.000 claims description 4
- 229940069338 potassium sorbate Drugs 0.000 claims description 4
- 235000010241 potassium sorbate Nutrition 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- SWRGUMCEJHQWEE-UHFFFAOYSA-N ethanedihydrazide Chemical compound NNC(=O)C(=O)NN SWRGUMCEJHQWEE-UHFFFAOYSA-N 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229940100484 5-chloro-2-methyl-4-isothiazolin-3-one Drugs 0.000 claims description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- XTJFFFGAUHQWII-UHFFFAOYSA-N Dibutyl adipate Chemical compound CCCCOC(=O)CCCCC(=O)OCCCC XTJFFFGAUHQWII-UHFFFAOYSA-N 0.000 claims description 2
- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 claims description 2
- NEHDRDVHPTWWFG-UHFFFAOYSA-N Dioctyl hexanedioate Chemical compound CCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC NEHDRDVHPTWWFG-UHFFFAOYSA-N 0.000 claims description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 2
- -1 acetic acid dioctyl sebacate Chemical compound 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 claims description 2
- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 235000017281 sodium acetate Nutrition 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000006174 pH buffer Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material 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
- C09J131/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C08F218/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention relates to a non-ironing jelly-shaped waterproof veneer adhesive and a preparation method thereof, and the main components and the preparation method thereof are as follows: mixing vinyl acetate, soft monomers, vinyl versatate, acrylic acid, functional monomers and internal plasticizers to obtain a monomer mixture for later use; adding polyvinyl alcohol, modified polyvinyl alcohol and deionized water into a flask, heating in a water bath, cooling, and adding a pH buffer, an emulsifier and a part of an initiator; dripping the monomer mixture and the rest of the initiator; and finally, adding an external plasticizer, a defoaming agent, a crosslinking agent and a preservative to obtain the veneer glue. The prepared veneer adhesive has the advantages of short initial bonding time, high bonding strength, good rolling coating property, strong water/solvent oil resistance, no ironing and repairability; the synthesis process is simple, the raw materials are cheap, and the method is suitable for practical application.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a non-ironing jelly-shaped waterproof veneer adhesive and a preparation method thereof.
Background
Veneer overlay decoration is widely used in the industries of artware, floors, wooden doors, furniture, buildings, ships, automobiles and the like. Taking furniture and artware as examples, the general process is as follows: selecting wood veneer → cutting wood veneer → splicing wood veneer → gluing veneer → hot pressing/ironing → sanding and trimming → spraying primer → spraying finish. The veneer adhesive plays an important role in veneer veneering production and quality, and the current commercially available water-based veneer adhesive has the problems of veneer adhesive bleeding, poor water resistance, poor brushing property, poor repairability, foaming after paint spraying and the like.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a non-ironing jelly-like waterproof veneer glue and a preparation method thereof.
The invention provides a non-ironing jelly-shaped waterproof veneer glue and a preparation method thereof, and adopts the following technical scheme:
an easy-care jelly-like waterproof veneer adhesive comprises the following components in parts by weight: 50 to 80 portions of deionized water, 1 to 8 portions of polyvinyl alcohol, 0.1 to 2.5 portions of modified polyvinyl alcohol, 15 to 45 portions of vinyl acetate, 1 to 6 portions of butyl acrylate, 0.1 to 5 portions of vinyl versatate, 0.1 to 2 portions of acrylic acid, 0.1 to 0.5 portion of functional monomer, 0.1 to 0.6 portion of PH buffer, 0.1 to 1 portion of emulsifier, 0.05 to 0.5 portion of initiator, 0.01 to 0.5 portion of internal plasticizer, 0.1 to 3 portions of plasticizer, 0.1 to 0.8 portion of defoamer and 0.1 to 1.5 portions of preservative.
Preferably, the composition comprises the following components in parts by weight: 55 to 65 portions of deionized water, 3 to 5 portions of polyvinyl alcohol, 0.5 to 2 portions of modified polyvinyl alcohol, 25 to 35 portions of vinyl acetate, 2 to 4 portions of butyl acrylate, 0.5 to 3 portions of vinyl versatate, 0.5 to 1 portion of acrylic acid, 0.1 to 0.3 portion of functional monomer, 0.1 to 0.3 portion of PH buffering agent, 0.2 to 0.5 portion of emulsifying agent, 0.15 to 0.3 portion of initiating agent, 0.01 to 0.1 portion of internal plasticizer, 0.3 to 2 portions of plasticizer, 0.1 to 0.4 portion of defoaming agent and 0.2 to 0.5 portion of preservative.
Preferably, the specification of the polyvinyl alcohol is one or more of BF-05, BF-17, BP-24 and BP-05, and the specification of the modified polyvinyl alcohol is one or more of Z-210, WR-12, WR-14 and RS-2117; the functional monomer is one or more of diacetone acrylamide, oxalyl hydrazine, hydroxymethyl acrylamide, hydroxyethyl acrylate, methyl methacrylate and butyl acrylate.
Preferably, the initiator is one or more of ammonium persulfate, potassium persulfate, hydrogen peroxide, dibenzoyl peroxide and dimethyl azodiisobutyrate, and the pH buffering agent is one or more of disodium hydrogen phosphate, sodium bicarbonate, ammonium bicarbonate and sodium acetate. The internal and external plasticizers are one or more of maleic acid di (2-ethylhexyl) ester, acetic acid dioctyl sebacate, adipic acid dioctyl ester, sebacic acid dibutyl ester, phthalic acid dioctyl ester, adipic acid di-n-butyl ester and phthalic acid dibutyl ester, the preservative is one or more of methyl chloro isothiazolinone, potassium sorbate and kasong, and the defoaming agent is one or more of tributyl phosphate and octanol.
A preparation method of non-ironing jelly-shaped waterproof wood veneer glue comprises the following steps:
the preparation method comprises the steps of weighing vinyl acetate, butyl acrylate, tertiary ethylene carbonate, acrylic acid, a functional monomer and an internal plasticizer, and uniformly mixing to form a monomer mixture for later use;
weighing polyvinyl alcohol, modified polyvinyl alcohol and deionized water, adding the weighed polyvinyl alcohol, modified polyvinyl alcohol and deionized water into a four-neck round-bottom flask, heating and stirring the mixture under the water bath condition until the mixture is completely dissolved to obtain a first mixed solution, cooling the mixture, adding a pH buffering agent, an emulsifying agent and part of an initiator into the mixture to react, and stirring the mixture to obtain a second mixed solution;
thirdly, the monomer mixture and the rest of the initiator are respectively placed into two constant-pressure funnels, slowly and dropwise added into the mixed solution II, and the temperature is raised for reaction, so that a mixed solution III is obtained;
fourthly, heating the mixed solution III to react, cooling to the temperature below 40 ℃, adding an external plasticizer, a defoaming agent, a crosslinking agent and a preservative, and stirring to obtain the non-ironing jelly-shaped waterproof veneer adhesive. Preferably, the stirring temperature under the water bath condition in the step II is 88-92 ℃, and the water bath stirring time is 1-3 h.
Preferably, the temperature reduction in the step II is 75-80 ℃, and the reaction time is 20-60 min.
Preferably, the monomer mixture and the initiator are dripped off in 3-5 h in the step three.
Preferably, the temperature rise in the step three is 80-95 ℃, and the reaction time is 1-3 h. In summary, the invention has the following beneficial technical effects:
1. according to the non-ironing jelly-shaped waterproof veneer glue provided by the invention, small molecules, water molecules, chain-shaped high molecules and the like in the gel-shaped glue are all in a metastable state (in a cross-linked network, but not as stable as a solid), and cannot flow freely under the condition of no large external force, so that the glue is not easy to permeate into the non-adhered surface of the veneer.
2. The invention provides a non-ironing jelly-shaped waterproof veneer adhesive which uses an internal plasticizer and an external plasticizer. The addition of the plasticizer can reduce the Tg point of the glue polymer, accelerate the film forming speed, and improve the plasticity, the brushing property and the smoothness of a dried glue film. The internal plasticizer has narrow application temperature, must be added in the polymerization process, can be used as a monomer and introduced into the molecular structure of the polymer through ways of copolymerization, grafting and the like, has a permanent plasticizing effect, and finally obtains the polymer with good toughness and high strength. The external plasticizer does not participate in the reaction, the effect is obvious after the external plasticizer is added, but the external plasticizer is volatilized continuously along with the time, and the later effect is difficult to ensure. Therefore, the internal plasticizer and the external plasticizer are mixed for use, so that the glue has good brushing property and high film forming speed in the initial use stage, and a certain ageing resistance of a glue film in the later stage can be ensured.
3. The non-ironing jelly-shaped waterproof veneer adhesive prepared by the invention has the advantages of short initial adhesion time, high bonding strength, good brushing property, strong water/oil resistance, non-ironing repairability and the like, and is beneficial to improving the working efficiency, saving electric energy and reducing waste.
Detailed Description
The present invention will be described in further detail with reference to examples.
The embodiment of the invention discloses non-ironing jelly-shaped waterproof veneer glue and a preparation method thereof.
Example 1
Weighing 25 parts of vinyl acetate, 1 part of butyl acrylate, 0.1 part of vinyl versatate, 0.1 part of acrylic acid, 0.1 part of hydroxymethyl acrylamide and 0.01 part of maleic acid di (2-ethylhexyl) ester, and uniformly mixing to form a monomer mixture for later use; weighing 1 part of polyvinyl alcohol (BF-05), 0.5 part of modified polyvinyl alcohol (Z-210) and 50 parts of deionized water, adding into a four-neck round-bottom flask with electric stirring, heating to 90 ℃, and stirring for 2 hours under the condition of water bath until completely dissolving to obtain a mixed solution I; cooling the mixed solution I to 70 ℃, adding 0.1 part of disodium hydrogen phosphate, 0.1 part of emulsifier and 0.01 part of initiator to react for 30min, and continuously stirring for 1h to obtain a mixed solution II; respectively putting the monomer mixture and 0.04 part of ammonium persulfate into two constant-pressure funnels, connecting the constant-pressure funnels to a four-neck flask, slowly dropwise adding the monomer mixture and the ammonium persulfate into the four-neck flask, and completely dropping the monomer mixture and the ammonium persulfate within 4 hours to obtain a mixed solution III; and heating the mixed solution III to 90 ℃ for reaction for 2h, cooling to below 40 ℃, adding 0.1 part of kasong, 0.1 part of dioctyl adipate and 0.1 part of tributyl phosphate, and stirring for 40min to obtain the non-ironing jelly-shaped waterproof veneer glue.
Example 2
Weighing 25 parts of vinyl acetate, 2 parts of butyl acrylate, 0.5 part of vinyl versatate, 0.5 part of acrylic acid, 0.1 part of hydroxymethyl acrylamide and 0.01 part of maleic acid di (2-ethylhexyl) ester, and uniformly mixing to form a monomer mixture for later use; weighing 3 parts of polyvinyl alcohol (BF-17), 0.5 part of modified polyvinyl alcohol (Z-210) and 55 parts of deionized water, adding into a four-neck round-bottom flask with electric stirring, heating to 92 ℃, and stirring for 1h under the condition of water bath until completely dissolving to obtain a first mixed solution; cooling the mixed solution I to 75 ℃, adding 0.1 part of disodium hydrogen phosphate, 0.2 part of emulsifier and 0.05 part of ammonium persulfate to react for 30min, and continuously stirring for 1h to obtain a mixed solution II; respectively putting the monomer mixture and 0.1 part of ammonium persulfate into two constant-pressure funnels, connecting the constant-pressure funnels to a four-neck flask, slowly dropwise adding the monomer mixture and the ammonium persulfate into the four-neck flask, and completely dropping the monomer mixture and the ammonium persulfate within 4 hours to obtain a mixed solution III; and heating the mixed solution III to 90 ℃ for reaction for 2h, cooling to below 40 ℃, adding 0.2 part of kasong, 0.3 part of dioctyl adipate and 0.1 part of tributyl phosphate, and stirring for 40min to obtain the non-ironing jelly-shaped waterproof veneer adhesive.
Example 3
Weighing 25 parts of vinyl acetate, 4 parts of butyl acrylate, 3 parts of vinyl versatate, 1 part of acrylic acid, 0.3 part of diacetone acrylamide, 0.01 part of oxalyl hydrazine and 0.01 part of maleic acid di (2-ethylhexyl) ester, and uniformly mixing to form a monomer mixture for later use; weighing 5 parts of polyvinyl alcohol (BP-24), 2 parts of modified polyvinyl alcohol (WR-14) and 70 parts of deionized water, adding into a four-neck round-bottom flask with electric stirring, heating to 88 ℃, and stirring for 3 hours under the condition of water bath until completely dissolving to obtain a mixed solution I; cooling the mixed solution I to 80 ℃, adding 0.3 part of sodium bicarbonate, 0.5 part of emulsifier and 0.1 part of ammonium persulfate to react for 30min, and continuously stirring for 1h to obtain a mixed solution II; respectively putting the monomer mixture and 0.2 part of ammonium persulfate into two constant-pressure funnels, connecting the constant-pressure funnels to a four-neck flask, slowly dropwise adding the monomer mixture and the ammonium persulfate into the four-neck flask, and completely dropping the monomer mixture and the ammonium persulfate within 5 hours to obtain a mixed solution III; and heating the mixed solution III to 90 ℃ to react for 1h, cooling to below 40 ℃, adding 0.5 part of kasong, 2 parts of dioctyl adipate and 0.4 part of octanol, and stirring for 60min to obtain the non-ironing jelly-shaped waterproof veneer adhesive.
Example 4
Weighing 35 parts of vinyl acetate, 2 parts of butyl acrylate, 0.5 part of vinyl versatate, 0.5 part of acrylic acid, 0.1 part of hydroxyethyl acrylate and 0.01 part of maleic acid di (2-ethylhexyl) ester, and uniformly mixing to form a monomer mixture for later use; weighing 3 parts of polyvinyl alcohol (BP-05), 0.5 part of modified polyvinyl alcohol (WR-12) and 70 parts of deionized water, adding into a four-neck round-bottom flask with electric stirring, heating to 92 ℃, and stirring for 1h under the condition of water bath until completely dissolving to obtain a mixed solution I; cooling the mixed solution I to 75 ℃, adding 0.1 part of disodium hydrogen phosphate, 0.2 part of emulsifier and 0.05 part of potassium persulfate to react for 30min, and continuously stirring for 1h to obtain a mixed solution II; respectively putting the monomer mixture and 0.1 part of potassium persulfate into two constant-pressure funnels, connecting the constant-pressure funnels to a four-neck flask, slowly dripping the monomer mixture and the potassium persulfate into the four-neck flask, and completely dripping the monomer mixture and the potassium persulfate within 4 hours to obtain a mixed solution III; and heating the mixed solution III to 90 ℃ for reaction for 2 hours, cooling to below 40 ℃, adding 0.2 part of potassium sorbate, 0.3 part of dioctyl adipate and 0.1 part of tributyl phosphate, and stirring for 50min to obtain the non-ironing jelly-shaped waterproof veneer adhesive.
Example 5
Weighing 45 parts of vinyl acetate, 2 parts of butyl acrylate, 0.5 part of vinyl versatate, 0.5 part of acrylic acid, 0.1 part of hydroxyethyl acrylate and 0.01 part of maleic acid bis (2-ethylhexyl) and uniformly mixing to form a monomer mixture for later use; weighing 3 parts of polyvinyl alcohol (BP-05), 0.5 part of modified polyvinyl alcohol (RS-2117) and 80 parts of deionized water, adding into a four-neck round-bottom flask with electric stirring, heating to 92 ℃, and stirring for 1h under the condition of water bath until completely dissolving to obtain a mixed solution I; cooling the mixed solution I to 75 ℃, adding 0.1 part of disodium hydrogen phosphate, 0.2 part of emulsifier and 0.05 part of dibenzoyl peroxide, reacting for 30min, and continuously stirring for 1h to obtain a mixed solution II; respectively putting the monomer mixture and 0.1 part of potassium persulfate into two constant-pressure funnels, connecting the constant-pressure funnels to a four-neck flask, slowly dripping the monomer mixture and dibenzoyl peroxide into the four-neck flask, and completely dripping the monomer mixture and the dibenzoyl peroxide within 4 hours to obtain a mixed solution III; and heating the mixed solution III to 90 ℃ for reaction for 2 hours, cooling to below 40 ℃, adding 0.2 part of potassium sorbate, 0.3 part of dioctyl phthalate and 0.1 part of octanol, and stirring for 50 minutes to obtain the non-ironing jelly-shaped waterproof veneer adhesive.
Effect detection
The veneer adhesives prepared in examples 1-5 were tested for viscosity according to GB/T2794-1995; the detection of the solid content is according to GB/T2793-1995; the pH was measured according to GB/T14518-1993; when the performance is detected, the sample is placed for 7 days and then is placed into cold water at room temperature for soaking for 4 days; placing the sample in an oven at 40+/-3 ℃ for at least 18 hours until the water content of the sample is reduced to a pre-test level; and (5) checking the cracking rate of the glue line. And (3) soaking the spliced plate in Tianna water (banana water), and detecting the solvent resistance of the glue by judging whether the spliced plate is swelled. The results are shown in the following table:
Claims (9)
1. an easy-care jelly-shaped waterproof veneer adhesive is characterized in that: the paint comprises the following components in parts by weight: 50 to 70 portions of deionized water, 1 to 8 portions of polyvinyl alcohol, 0.1 to 2.5 portions of modified polyvinyl alcohol, 15 to 45 portions of vinyl acetate, 1 to 6 portions of butyl acrylate, 0.1 to 5 portions of vinyl versatate, 0.1 to 2 portions of acrylic acid, 0.1 to 0.5 portion of functional monomer, 0.1 to 0.6 portion of PH buffering agent, 0.1 to 1 portion of emulsifying agent, 0.05 to 0.5 portion of initiating agent, 0.01 to 0.5 portion of internal plasticizer, 0.1 to 3 portions of plasticizer, 0.1 to 0.8 portion of defoaming agent and 0.1 to 1.5 portions of preservative.
2. The easy-care jelly-like waterproof veneer glue according to claim 1, characterized in that: the paint comprises the following components in parts by weight: 55 to 65 portions of deionized water, 3 to 5 portions of polyvinyl alcohol, 0.5 to 2 portions of modified polyvinyl alcohol, 25 to 35 portions of vinyl acetate, 2 to 4 portions of butyl acrylate, 0.5 to 3 portions of vinyl versatate, 0.5 to 1 portion of acrylic acid, 0.1 to 0.3 portion of functional monomer, 0.1 to 0.3 portion of PH buffering agent, 0.2 to 0.5 portion of emulsifying agent, 0.15 to 0.3 portion of initiating agent, 0.01 to 0.1 portion of internal plasticizer, 0.3 to 2 portions of plasticizer, 0.1 to 0.4 portion of defoaming agent and 0.2 to 0.5 portion of preservative.
3. The non-ironing jelly-like waterproof veneer glue according to claim 1, characterized in that: the specification of the polyvinyl alcohol is one or more of BF-05, BF-17, BP-24 and BP-05, and the specification of the modified polyvinyl alcohol is one or more of Z-210, WR-12, WR-14 and RS-2117; the functional monomer is one or more of diacetone acrylamide, oxalyl hydrazine, hydroxymethyl acrylamide, hydroxyethyl acrylate, methyl methacrylate and butyl acrylate.
4. The easy-care jelly-like waterproof veneer glue according to claim 1, characterized in that: the initiator is one or more of ammonium persulfate, hydrogen peroxide, dibenzoyl peroxide and dimethyl azodiisobutyrate, and the pH buffering agent is one or more of disodium hydrogen phosphate, sodium bicarbonate, ammonium bicarbonate and sodium acetate. The internal and external plasticizers are one or more of maleic acid di (2-ethylhexyl) ester, acetic acid dioctyl sebacate, adipic acid dioctyl ester, sebacic acid dibutyl ester, phthalic acid dioctyl ester, adipic acid di-n-butyl ester and phthalic acid dibutyl ester, the preservative is one or more of methyl chloro isothiazolinone, potassium sorbate and kason, and the defoaming agent is one or more of tributyl phosphate and octanol.
5. A method for preparing the easy-care jelly-like waterproof wood veneer glue according to any one of claims 1 to 4, which is characterized in that: the method comprises the following steps:
the preparation method comprises the steps of weighing vinyl acetate, butyl acrylate, tertiary ethylene carbonate, acrylic acid, a functional monomer and an internal plasticizer, and uniformly mixing to form a monomer mixture for later use;
weighing polyvinyl alcohol, modified polyvinyl alcohol and deionized water, adding the weighed polyvinyl alcohol, modified polyvinyl alcohol and deionized water into a four-neck round-bottom flask, heating and stirring the mixture under the water bath condition until the mixture is completely dissolved to obtain a first mixed solution, cooling the mixture, adding a pH buffering agent, an emulsifying agent and part of an initiator into the mixture to react, and stirring the mixture to obtain a second mixed solution;
thirdly, the monomer mixture and the rest of the initiator are respectively placed into two constant-pressure funnels, slowly and dropwise added into the mixed solution II, and the temperature is raised for reaction, so that a mixed solution III is obtained;
fourthly, heating the mixed solution III to react, cooling to the temperature below 40 ℃, adding an external plasticizer, a defoaming agent, a crosslinking agent and a preservative, and stirring to obtain the non-ironing jelly-shaped waterproof veneer adhesive.
6. The preparation method of the easy-care jelly-like waterproof veneer glue according to claim 5, characterized in that: the stirring temperature under the water bath condition in the step II is 88-92 ℃, and the water bath stirring time is 1-3 h.
7. The preparation method of the non-ironing jelly-like waterproof veneer glue according to claim 5, characterized by comprising the following steps: the cooling temperature in the step II is 75-80 ℃, and the reaction time is 20-60 min.
8. The preparation method of the easy-care jelly-like waterproof veneer glue according to claim 5, characterized in that: and in the step three, the monomer mixture and the initiator are dripped within 3-5 h.
9. The preparation method of the easy-care jelly-like waterproof veneer glue according to claim 5, characterized in that: in the step three, the temperature rise is 80-95 ℃, and the reaction time is 1-3 h.
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| CN202210750748.8A CN115141582A (en) | 2022-06-28 | 2022-06-28 | Non-ironing jelly-like waterproof veneer glue and preparation method thereof |
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| CN202210750748.8A CN115141582A (en) | 2022-06-28 | 2022-06-28 | Non-ironing jelly-like waterproof veneer glue and preparation method thereof |
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