CN113618856A - Negative ion moisture-proof ecological plate and preparation method and application thereof - Google Patents
Negative ion moisture-proof ecological plate and preparation method and application thereof Download PDFInfo
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- CN113618856A CN113618856A CN202110948857.6A CN202110948857A CN113618856A CN 113618856 A CN113618856 A CN 113618856A CN 202110948857 A CN202110948857 A CN 202110948857A CN 113618856 A CN113618856 A CN 113618856A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004814 polyurethane Substances 0.000 claims abstract description 33
- 229920002635 polyurethane Polymers 0.000 claims abstract description 33
- 150000002500 ions Chemical class 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 229960000892 attapulgite Drugs 0.000 claims abstract description 16
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 14
- 239000002649 leather substitute Substances 0.000 claims abstract description 14
- 239000011707 mineral Substances 0.000 claims abstract description 14
- 229910052613 tourmaline Inorganic materials 0.000 claims abstract description 13
- 229940070527 tourmaline Drugs 0.000 claims abstract description 13
- 239000011032 tourmaline Substances 0.000 claims abstract description 13
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 11
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 11
- 239000002734 clay mineral Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 7
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 7
- 239000003999 initiator Substances 0.000 claims abstract description 4
- 150000003254 radicals Chemical class 0.000 claims abstract description 4
- -1 phosphate ester Chemical class 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 6
- 239000010452 phosphate Substances 0.000 claims description 6
- 239000011094 fiberboard Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 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
- YYPNJNDODFVZLE-UHFFFAOYSA-N 3-methylbut-2-enoic acid Chemical compound CC(C)=CC(O)=O YYPNJNDODFVZLE-UHFFFAOYSA-N 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 239000004640 Melamine resin Substances 0.000 claims description 3
- ZCJLOOJRNPHKAV-ONEGZZNKSA-N (e)-3-(furan-2-yl)prop-2-enoic acid Chemical compound OC(=O)\C=C\C1=CC=CO1 ZCJLOOJRNPHKAV-ONEGZZNKSA-N 0.000 claims description 2
- SSAYTINUCCRGDR-OWOJBTEDSA-N (e)-3-pyridin-4-ylprop-2-enoic acid Chemical compound OC(=O)\C=C\C1=CC=NC=C1 SSAYTINUCCRGDR-OWOJBTEDSA-N 0.000 claims description 2
- VLSRKCIBHNJFHA-UHFFFAOYSA-N 2-(trifluoromethyl)prop-2-enoic acid Chemical compound OC(=O)C(=C)C(F)(F)F VLSRKCIBHNJFHA-UHFFFAOYSA-N 0.000 claims description 2
- RYNDYESLUKWOEE-UHFFFAOYSA-N 2-benzylprop-2-enoic acid Chemical compound OC(=O)C(=C)CC1=CC=CC=C1 RYNDYESLUKWOEE-UHFFFAOYSA-N 0.000 claims description 2
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 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
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000000123 paper Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- MHHJQVRGRPHIMR-UHFFFAOYSA-N 1-phenylprop-2-en-1-ol Chemical compound C=CC(O)C1=CC=CC=C1 MHHJQVRGRPHIMR-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of ecological plates, and discloses a negative ion moisture-proof ecological plate and a preparation method thereof, wherein the preparation method comprises the following steps: s1, adding 16-80 wt.% of attapulgite clay mineral, 10-80 wt.% of tourmaline mineral and 4-10 wt.% of acrylic resin into a ball mill according to a proportion, and grinding for 10-20min at a rotation speed of 20-200 r/min; s2, adding 100-900 parts of vinyl modified waterborne polyurethane adhesive and 1-3 parts of free radical initiator into S1, and uniformly stirring; s3, coating the mixture obtained in the step S2 on the surface of a core plate, attaching 2-20 mu m of waterborne polyurethane synthetic leather on the surface of the core plate, and drying at the temperature of 110 ℃ and 140 ℃ to obtain the negative ion moisture-proof ecological plate. The preparation method is convenient to operate, energy-saving and environment-friendly, and the prepared ecological plate releases negative ions through the tourmaline component, absorbs moisture and prevents moisture, has a certain stain-preventing function and has a wide market prospect.
Description
Technical Field
The invention relates to the technical field of ecological plates, in particular to a negative ion moisture-proof ecological plate and a preparation method and application thereof.
Background
The ecological board, which is named as melamine impregnated bond paper veneer artificial board, is a decorative board formed by soaking paper with different colors or textures in ecological board resin adhesive, drying to a certain curing degree, paving the paper on the surface of a shaving board, a moisture-proof board, a medium-density fiberboard, a plywood, a core board or other hard fiberboard and carrying out hot pressing.
In the technical field of decorative materials, after the decoration of plywood, blockboards and veneers, the odor of indoor toluene, xylene and the like cannot be dissipated for a long time, the indoor environment is seriously influenced, and the use of the product is restricted; the impregnated paper veneer artificial board (a joinery board core and a plywood core, also called as an environment-friendly ecological board) has high construction speed and less indoor organic volatile substances and is more and more favored by consumers, but the molar ratio of urea-formaldehyde resin and melamine-formaldehyde resin for the impregnated paper is too high, and the formaldehyde emission is obviously higher than that of a common artificial board;
the current situation of indoor air quality is a focus of social attention, and the excessive concentration of formaldehyde, TVOC and bacteria seriously affects the physical and mental health of people. The common artificial board furniture board uses the adhesive synthesized by formaldehyde and urea to achieve the bonding effect, although the bonding performance is excellent, the dissociated formaldehyde causes the indoor air quality to be deteriorated, and the breeding of health hidden troubles is avoided. Therefore, it is urgently needed to develop an antibacterial and formaldehyde-removing plate material as a home decoration material.
Disclosure of Invention
The invention aims to provide a negative ion moisture-proof ecological plate and a preparation method thereof, wherein a moisture absorption and mildew prevention function is constructed by utilizing attapulgite clay minerals, an antibacterial and formaldehyde-removing function is constructed by taking tourmaline minerals as negative ion sources, and the mechanical strength of the ecological plate is improved by utilizing one-dimensional attapulgite and three-dimensional tourmaline to cooperatively reinforce a waterborne polyurethane adhesive according to a multielement composite cooperative reinforcement theory; the stain-resistant function is obtained by adhering the surface layer of the waterborne polyurethane synthetic leather, so that the ecological plate has the functions of attractive appearance, stain resistance, moisture absorption, mildew resistance, bacteria resistance, formaldehyde removal and the like, and the preparation process is simple, suitable for industrial production, has wide market prospect and can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that: an anion moisture-proof ecological plate and a preparation method thereof comprise the following steps:
s1, adding 16-80 wt.% of attapulgite clay mineral, 10-80 wt.% of tourmaline mineral and 4-10 wt.% of acrylic resin into a ball mill according to the proportion, and grinding for 10-20min at the rotating speed of 20-200 r/min;
s2, adding 100 and 900 parts of vinyl modified waterborne polyurethane adhesive into S1, and uniformly stirring;
s3, coating the mixture obtained in the step S2 on the surface of a core plate, attaching 2-20 mu m of waterborne polyurethane synthetic leather on the surface of the core plate, and drying at the temperature of 110 ℃ and 140 ℃ to obtain the negative ion moisture-proof ecological plate.
Preferably, the content of attapulgite in the attapulgite clay mineral is >70 wt.%.
Preferably, the acrylic resin is any one of 2-acrylic acid, 2-furan acrylic acid, 2-carboxyethyl acrylate, 2- (trifluoromethyl) acrylic acid, 4-pyridine acrylic acid, 2-benzyl acrylic acid, and 3, 3-dimethyl acrylic acid.
Further, the radical initiator is any one of azobisisobutyronitrile, azobisisoheptonitrile and dimethyl azobisisobutyrate.
Preferably, the core board is a hard fiberboard, and is dried at 70-100 ℃ after being soaked in melamine resin for 0.5-2 h.
Further, the waterborne polyurethane synthetic leather is prepared from an organopolysiloxane and phosphate ester in-situ double-modified waterborne polyurethane emulsion.
Compared with the prior art, the invention has the following beneficial effects:
firstly, a mineral layer of attapulgite and tourmaline is constructed, the prepared ecological plate has the functions of moisture absorption, mildew resistance, bacteria resistance, formaldehyde removal and the like, meanwhile, the attapulgite and the tourmaline are modified by utilizing acrylic resin, so that double bonds on the mineral powder can generate free radical polymerization reaction with the double bonds on the vinyl modified waterborne polyurethane adhesive, the mineral powder and the vinyl modified waterborne polyurethane adhesive are connected through covalent bonds, and the mineral layer has certain mechanical strength by utilizing the multielement composite synergistic reinforcement effect of different dimensional structures of the two mineral powders, so that the mechanical performance of the ecological plate is obviously improved;
secondly, the waterborne polyurethane synthetic leather prepared by the waterborne polyurethane emulsion in-situ double-modified by the organic polysiloxane and the phosphate is used as a surface layer, the phosphate is modified, so that the waterborne polyurethane emulsion has good flame retardance, and in addition, a mineral layer mainly made of flame-retardant materials such as attapulgite, tourmaline and the like and a hard fiberboard core layer treated by melamine resin also have flame retardance, so that the ecological board has excellent flame retardance;
and in the preparation process of the ecological plate, the water-based polyurethane adhesive is adopted to replace the traditional phenolic glue, so that the prepared ecological plate is good in environment-friendly effect, the way of introducing formaldehyde is reduced, and the mainstream environment-friendly requirement of the market is met.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The preparation method of the adhesive and the waterborne polyurethane synthetic leather related to the following embodiments comprises the following steps:
vinyl modified waterborne polyurethane adhesive
In a three-neck round bottom flask equipped with a mechanical stirring paddle, a reflux condenser and a thermometer, uniformly stirring isophorone diisocyanate (IPDI, 35%), polyether polyol (PPG 1000, 15%) and polytetrahydrofuran polyol (PTMG 1000, 32%) at room temperature, adjusting the reaction temperature to (80 +/-1) DEG C, dropwise adding dibutyltin dilaurate (DBTDL, 0.6%) serving as a catalyst, and stirring for reacting for 2 hours; then adjusting the reaction temperature to (60 +/-1) DEG C, adding a certain amount of modifier alpha-vinyl benzyl alcohol (VBA, 4.4%), stirring for reaction for 1 hour, then adding metered 2, 2-dimethylolpropionic acid (DMPA, 6%), and continuing to react for 1 hour; during which time an appropriate amount of acetone was added for dilution. And then cooling to room temperature, adding a proper amount of acetone and a metered amount of triethylamine (TEA, 4.5%) for neutralization reaction, after neutralization is finished, adding a metered amount of ethylenediamine (EDA, 2.5%) for chain extension under high-speed stirring, adding water into the system for emulsification, and finally carrying out reduced pressure distillation to remove the solvent, thus obtaining the vinyl modified waterborne polyurethane emulsion adhesive (VWPU).
Waterborne polyurethane synthetic leather
S1, adding metered amounts of isophorone diisocyanate (IPDI, 12%), hexamethylene diisocyanate (HDI, 20%), polytetrahydrofuran polyol (PTMG 2000, 25%), dihydroxy-terminated polysiloxane (hydroxy silicone oil, hydroxyl content 8-10%, 15%) and organic phosphate diol (OP 550, 10%) into a three-neck round-bottom flask equipped with a mechanical stirring paddle, a reflux condenser and a thermometer, stirring uniformly at room temperature, adjusting the reaction temperature to (80 +/-1) DEG C, dropwise adding a catalyst dibutyltin dilaurate (DBTDL, 1%), stirring for 2 hours, adding a certain amount of 1, 4-butanediol (BDO, 4%), stirring for 1 hour, then adding metered amounts of 2, 2-dimethylolpropionic acid (DMPA, 5%), and continuing to react for 1 hour; during which time an appropriate amount of acetone was added for dilution. Then cooling to room temperature, adding a proper amount of acetone and a measured amount of triethylamine (TEA, 5%) for neutralization reaction, after neutralization is finished, adding a measured amount of ethylenediamine (EDA, 3%) for chain extension under high-speed stirring, adding water into the system for emulsification, and finally carrying out reduced pressure distillation to remove the solvent, thereby obtaining the polysiloxane and phosphate ester in-situ double-modified waterborne polyurethane emulsion;
s2, adding a certain amount of aqueous color paste (1%) into the aqueous polyurethane emulsion, uniformly stirring, coating the aqueous color paste on release paper through a two-roll calender, and drying for 10 minutes at 120 ℃ to obtain the flame-retardant stain-resistant aqueous polyurethane synthetic leather coating.
Example 1
Adding attapulgite clay mineral (16 wt.%), tourmaline mineral (80 wt.%) and acrylic resin (4 wt.%) into a ball mill, grinding for 15min, adding a certain amount (900 parts) into vinyl-modified waterborne polyurethane adhesive (100 parts), stirring and mixing uniformly, coating the mixture on the surface of a core plate, attaching waterborne polyurethane synthetic leather (20 microns) to the surface of the core plate through a two-roller calender, and drying at 140 ℃ to obtain the negative ion moisture-proof ecological plate.
Example 2
Adding attapulgite clay mineral (40 wt.%), tourmaline mineral (53 wt.%) and acrylic resin (7 wt.%) into a ball mill, grinding for 15min, adding a certain amount (500 parts) into vinyl-modified waterborne polyurethane adhesive (100 parts), stirring and mixing uniformly, coating the mixture on the surface of a core plate, attaching waterborne polyurethane synthetic leather (20 microns) to the surface of the core plate through a two-roller calender, and drying at 140 ℃ to obtain the negative ion moisture-proof ecological plate.
Example 3
Adding attapulgite clay mineral (60 wt.%), tourmaline mineral (32 wt.%) and acrylic resin (8 wt.%) into a ball mill, grinding for 15min, adding a certain amount (300 parts) into vinyl-modified waterborne polyurethane adhesive (100 parts), stirring and mixing uniformly, coating the mixture on the surface of a core plate, attaching waterborne polyurethane synthetic leather (10 microns) to the surface of the core plate through a two-roller calender, and drying at 120 ℃ to obtain the negative ion moisture-proof ecological plate.
Example 4
Adding attapulgite clay mineral (80 wt.%), tourmaline mineral (10 wt.%) and acrylic resin (10 wt.%) into a ball mill, grinding for 15min, adding a certain amount (100 parts) into vinyl-modified waterborne polyurethane adhesive (100 parts), stirring and mixing uniformly, coating the mixture on the surface of a core plate, attaching waterborne polyurethane synthetic leather (2 microns) to the surface of the core plate through a two-roller calender, and drying at 110 ℃ to obtain the negative ion moisture-proof ecological plate.
Comparative example 1
The method comprises the steps of putting straws into a pulverizer for pulverization, processing the straws into plant fibers by using a fiber machine, drying the plant fibers, mixing the plant fibers (81 wt.%), melamine-formaldehyde resin (12 wt.%), acrylic resin (7 wt.%) in proportion, uniformly stirring, pouring the mixture into a mold for paving and molding to obtain a plate blank, carrying out hot pressing treatment at 110 ℃ for 10 minutes by using a hot press, coating adhesive on the surface of the plate blank by using a cementing machine after cooling, paving a laminated wood board as a surface layer, and carrying out hot pressing at 100 ℃ for 5 minutes to obtain the composite ecological board.
The performance of the ecological plates prepared in examples 1-4 and comparative example 1 was tested, and the specific test results are shown in table 1 below.
Table 1 performance test results for different ecological plate samples
The preservative and mildew resistance rating test is in accordance with ASTM G21-2015 standard.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The negative ion moisture-proof ecological plate and the preparation method thereof are characterized in that: the method comprises the following steps:
s1, adding 16-80 wt.% of attapulgite clay mineral, 10-80 wt.% of tourmaline mineral and 4-10 wt.% of acrylic resin into a ball mill according to the proportion, and grinding for 10-20min at the rotating speed of 20-200 r/min;
s2, adding 100-900 parts of vinyl modified waterborne polyurethane adhesive and 1-3 parts of free radical initiator into S1, and uniformly stirring;
s3, coating the mixture obtained in the step S2 on the surface of a core plate, attaching 2-20 mu m of waterborne polyurethane synthetic leather on the surface of the core plate, and drying at the temperature of 110 ℃ and 140 ℃ to obtain the negative ion moisture-proof ecological plate.
2. The negative ion moisture-proof ecological plate and the preparation method thereof according to claim 1, wherein the negative ion moisture-proof ecological plate comprises: the content of attapulgite in the attapulgite clay mineral is more than 70 wt.%.
3. The negative ion moisture-proof ecological plate and the preparation method thereof according to claim 1, wherein the negative ion moisture-proof ecological plate comprises: the acrylic resin is any one of 2-acrylic acid, 2-furan acrylic acid, 2-carboxyethyl acrylate, 2- (trifluoromethyl) acrylic acid, 4-pyridine acrylic acid, 2-benzyl acrylic acid and 3, 3-dimethyl acrylic acid.
4. The negative ion moisture-proof ecological plate and the preparation method thereof according to claim 1, wherein the negative ion moisture-proof ecological plate comprises: the free radical initiator is any one of azobisisobutyronitrile, azobisisoheptonitrile and dimethyl azobisisobutyrate.
5. The negative ion moisture-proof ecological plate and the preparation method thereof according to claim 1, wherein the negative ion moisture-proof ecological plate comprises: the core board is a hard fiberboard, and is dried at 70-100 ℃ after being soaked in melamine resin for 0.5-2 h.
6. The negative ion moisture-proof ecological plate and the preparation method thereof according to claim 1, wherein the negative ion moisture-proof ecological plate comprises: the waterborne polyurethane synthetic leather is prepared from organopolysiloxane and phosphate ester in-situ double-modified waterborne polyurethane emulsion.
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Application publication date: 20211109 |