CN115260979A - Mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material and preparation method thereof - Google Patents
Mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material and preparation method thereof Download PDFInfo
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- CN115260979A CN115260979A CN202210793429.5A CN202210793429A CN115260979A CN 115260979 A CN115260979 A CN 115260979A CN 202210793429 A CN202210793429 A CN 202210793429A CN 115260979 A CN115260979 A CN 115260979A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 67
- 239000001301 oxygen Substances 0.000 title claims abstract description 67
- 239000004814 polyurethane Substances 0.000 title claims abstract description 64
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 42
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 30
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 30
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 28
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 28
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 26
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 87
- 239000011259 mixed solution Substances 0.000 claims description 47
- 238000003756 stirring Methods 0.000 claims description 38
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 36
- 239000000243 solution Substances 0.000 claims description 36
- 239000004359 castor oil Substances 0.000 claims description 30
- 235000019438 castor oil Nutrition 0.000 claims description 30
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 30
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 22
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 22
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000007864 aqueous solution Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- CVQRWWZPTSCLHG-UHFFFAOYSA-N formaldehyde;phenol;hydrate Chemical compound O.O=C.OC1=CC=CC=C1 CVQRWWZPTSCLHG-UHFFFAOYSA-N 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 claims description 6
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 6
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 6
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 229940102253 isopropanolamine Drugs 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 6
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims description 6
- 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 claims description 5
- 239000002318 adhesion promoter Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- NNMXSTWQJRPBJZ-UHFFFAOYSA-K europium(iii) chloride Chemical compound Cl[Eu](Cl)Cl NNMXSTWQJRPBJZ-UHFFFAOYSA-K 0.000 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- NXLNNXIXOYSCMB-UHFFFAOYSA-N (4-nitrophenyl) carbonochloridate Chemical compound [O-][N+](=O)C1=CC=C(OC(Cl)=O)C=C1 NXLNNXIXOYSCMB-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 claims description 4
- 150000003254 radicals Chemical class 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 238000002390 rotary evaporation Methods 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 238000009775 high-speed stirring Methods 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 13
- 229920001568 phenolic resin Polymers 0.000 description 13
- 230000032683 aging Effects 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000004035 construction material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- -1 rare earth chloride Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/6705—Unsaturated polymers not provided for in the groups C08G18/671, C08G18/6795, C08G18/68 or C08G18/69
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- 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
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2248—Oxides; Hydroxides of metals of copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material and a preparation method thereof, wherein the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material comprises the following raw materials: the high-strength hydrophobic polyurethane adhesive comprises high-strength hydrophobic polyurethane, an auxiliary agent, a rare earth complex, a composite filler, a modified polyisocyanate curing agent and a hindered phenol antioxidant. The high-strength hydrophobic polyurethane is used as a main raw material, so that the high-strength hydrophobic polyurethane plays a role in high strength and hydrophobicity, the hydrolysis resistance of the airtight oxygen chamber polyurethane material is improved, and the auxiliary agent, the rare earth complex, the composite filler, the modified polyisocyanate curing agent and the hindered phenol antioxidant are matched.
Description
Technical Field
The invention relates to the technical field of airtight oxygen chamber materials, in particular to a mildew-resistant hydrolysis-resistant polyurethane airtight oxygen chamber material and a preparation method thereof.
Background
An airtight oxygen chamber: the oxygen-enriched air-tight oxygen cabin refers to treatment equipment for various anoxia diseases, a cabin body is a closed cylinder, pure oxygen or purified compressed air is input through a pipeline and a control system, a doctor outside the cabin can be communicated with a patient through an observation window and an interphone, the large-scale oxygen cabin is provided with 10-20 seats, and due to the medical specificity of the air-tight oxygen cabin, the requirements on the materials of the air-tight oxygen cabin are extremely strict, compared with the prior art: the technical scheme of a polyurethane sealing material and a preparation method thereof (application number: 201410782163. X) discloses that the polyurethane sealing material has the characteristics of warm curing, long gel time, good flowability and high bonding strength with metal, is simple, and is characterized by the advantages of the polyurethane sealing material, and a comparative example does not disclose the functions of mildew resistance, bacteria resistance, water resistance, hydrolysis resistance, high adhesion, good water dispersibility and ageing resistance of the polyurethane sealing material except the advantages of the polyurethane sealing material, cannot meet the requirements of airtight oxygen chamber construction materials, is easy to be influenced by the environment in the using process, has the problems of rapid ageing, bacteria growth, and poor stability, and shortens the service life of an airtight oxygen chamber.
Disclosure of Invention
The invention aims to provide a mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material and a preparation method thereof, and aims to solve the problems that the mildew-resistant bacteria-proof polyurethane airtight oxygen cabin material does not have the functions of mildew resistance, water resistance, hydrolysis resistance, high adhesion, good water dispersibility and ageing resistance, is easily influenced by the environment in the use process of the airtight oxygen cabin, has rapid ageing, bacteria-nourishing mildew growth and poor stability, and shortens the service life of the airtight oxygen cabin.
In order to achieve the purpose, the invention provides the following technical scheme: the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material comprises the following raw materials:
the high-strength hydrophobic polyurethane, an auxiliary agent, a rare earth complex, a composite filler, a modified polyisocyanate curing agent and a hindered phenol antioxidant;
the parts of the raw materials are as follows:
35-50 parts of high-strength hydrophobic polyurethane, 6-12 parts of an auxiliary agent, 15-30 parts of a rare earth complex, 8-15 parts of a composite filler, 1-3 parts of a modified polyisocyanate curing agent and 5-10 parts of a hindered phenol antioxidant;
the modified polyisocyanate curing agent is prepared by using a polyisocyanate raw material as a base, performing hydroxyl end capping on polyisocyanate by using the characteristics of a hydroxyl acrylate monomer, performing free radical copolymerization, and performing hydrophilic modification.
Preferably, the high strength hydrophobic polyurethane is comprised of phenol, aqueous formaldehyde, ammonia, castor oil, ethylene glycol, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate, and acetone.
Preferably, the auxiliary agent consists of 0.5-1 part of adhesion promoter, 0.6-1.4 part of dispersing agent, 0.1-0.3 part of flatting agent, 0.2-0.6 part of defoamer and 5-8 parts of flame retardant.
Preferably, the composite filler is prepared from graphene oxide, carbon nanotubes, nano titanium dioxide, nano zinc oxide, nano copper oxide, nano carbon fibers and silicon dioxide according to a weight ratio of 8:8:10:6:9:3:6 mixing to obtain the final product.
Preferably, the rare earth complex raw material comprises polyvinyl alcohol, isopropanolamine, acetonitrile, p-nitro phenyl chloroformate, chitosan, deionized water, modified polyvinyl alcohol, europium chloride and lanthanum chloride.
Preferably, the hindered phenol antioxidant raw material consists of polyether triol, isocyanate and a catalyst, and the catalyst consists of triethylene diamine and stannous octoate.
The preparation method of the mould-resistant hydrolysis-resistant polyurethane airtight oxygen chamber material comprises the following preparation steps:
s1, preparing high-strength hydrophobic polyurethane: firstly, mixing phenol and formaldehyde aqueous solution, after the phenol-formaldehyde aqueous solution is uniformly stirred, heating the phenol-formaldehyde aqueous solution by using a heating furnace for the first time, then dropwise adding ammonia water into the phenol-formaldehyde aqueous solution, heating by using the heating furnace for the second time, dropwise adding castor oil into the phenol-formaldehyde aqueous solution, heating by using the heating furnace for the third time, cooling the heating furnace to 30-45 ℃ after reduced pressure distillation, then adding ethylene glycol into the phenol-formaldehyde aqueous solution, and preserving heat for 60-80min to obtain castor oil modified phenolic resin;
secondly, uniformly mixing the castor oil modified phenolic resin, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate and acetone to obtain a mixed solution, then placing the mixed solution on a heating furnace, heating the castor oil modified phenolic resin mixed solution by the heating furnace for the first time, vacuumizing the mixed solution, then heating the castor oil modified phenolic resin mixed solution by the heating furnace for the second time, then continuously heating the castor oil modified phenolic resin mixed solution by the heating furnace for the third time, and curing to obtain the high-strength hydrophobic polyurethane;
s2, preparing a rare earth complex: under the protection of nitrogen, preparing two parts of acetonitrile with the same quantity, adding polyvinyl alcohol and isopropanolamine into the first part of acetonitrile, uniformly stirring to obtain a solution A, dissolving phenyl p-nitrochloroformate into the second part of acetonitrile to obtain a solution B, adding the solution B into the solution A, uniformly stirring for reaction, freezing in a refrigerator for 5-10 hours after the reaction is finished, sequentially filtering, evaporating, precipitating and drying to obtain modified polyvinyl alcohol, then dissolving chitosan into deionized water to obtain a solution C, then adding the modified polyvinyl alcohol, stirring for 20-35 hours at 30-35 ℃, dialyzing after the stirring is finished, performing rotary evaporation and drying to obtain grafted polyvinyl alcohol, then adding the grafted polyvinyl alcohol into the deionized water, adding europium chloride and lanthanum chloride to obtain a solution D, then adjusting the pH value of a solution D system to be neutral, reacting for 20-30 minutes at 75-85 ℃, dialyzing, drying and grinding after the reaction is finished to obtain a rare earth complex;
s3, preparing a hindered phenol antioxidant: firstly, uniformly stirring polyether polyol and a catalyst by using a high-speed stirrer to obtain a mixture, then quickly pouring isocyanate with accurate measurement into the mixture, then stirring at a high speed to obtain a mixed solution, then pouring the stirred mixed solution into a test mold, and demolding when the temperature of a sample formed after raw material components in the mixed solution react is reduced to room temperature to obtain the hindered phenol antioxidant;
s4, preparing an oxygen cabin material: and then, mixing the high-strength hydrophobic polyurethane obtained in the step S1, the rare earth complex obtained in the step S2 and the composite filler by using a high-speed stirrer, uniformly mixing to obtain an oxygen bin material mixture A, and then putting the hindered phenol antioxidant, the auxiliary agent and the modified polyisocyanate curing agent obtained in the step S3 into the oxygen bin material mixture B for high-speed stirring to obtain the oxygen bin finished product material.
Preferably, in the preparation process of the S1 high-strength hydrophobic polyurethane, the temperature range of the heating furnace for heating the phenol-formaldehyde-water mixed solution for the first time is between 55 and 60 ℃, the time for dripping ammonia water after the first heating is between 20 and 30 minutes, the temperature range of the heating furnace for heating the phenol-formaldehyde-water mixed solution for the second time is between 65 and 75 ℃, the time for dripping castor oil is between 30 and 35 minutes after the second heating is finished and the temperature range of the heating furnace for heating the phenol-formaldehyde-water mixed solution for the third time is between 75 and 85 ℃, and the temperature is kept for 10 to 15 hours; the first heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 80 and 100 ℃, the second heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 100 and 120 ℃, the temperature is kept for 1 to 2 hours, the third heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 120 and 130 ℃, and the curing time is controlled to be between 1 and 3 hours.
Preferably, in the preparation process of the S2 rare earth complex, the solution A is stirred at the temperature of 65-75 ℃, the solution B is uniformly stirred at the temperature of 5-10 ℃ after being added into the solution A, the stirring reaction time is 10-20 hours, and the solution C is cooled to room temperature after being stirred for 30-50min at the temperature of 55-70 ℃.
Preferably, in the preparation processes of the S3 hindered phenol antioxidant and the S4 oxygen cabin material, the high-speed stirrer stirs the mixture at a speed of 3000-5000r/min for 40-60S, and the high-speed stirrer stirs the mixed solution at a speed of 6000-8000r/min for 6-10S; the high-speed stirrer uniformly stirs the oxygen bin material mixture A and the oxygen bin material mixture B by adopting a slow-speed, fast-speed and slow-speed three-gear mode, when a first slow gear is adopted, the speed of the high-speed stirrer is controlled to be 3000-5000r/min, the stirring time is 3-5min, when a second fast gear is adopted, the speed of the high-speed stirrer is controlled to be 6000-8000r/min, the stirring time is 1-3min, when a third slow gear is adopted, the speed of the high-speed stirrer is controlled to be 2000-3000r/min, and the stirring time is 5-10min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, high-strength hydrophobic polyurethane is used as a main raw material, so that the effects of high strength and hydrophobicity are achieved, the hydrolysis resistance of the airtight oxygen chamber polyurethane material is improved, and the auxiliary agent, the rare earth complex, the composite filler, the modified polyisocyanate curing agent and the hindered phenol antioxidant are matched, so that the airtight oxygen chamber polyurethane material has the functions of rapid gelation, high hardness, high fracture resistance and tensile property, mildew resistance, bacteria resistance, water resistance, hydrolysis resistance, high adhesive force, good water dispersibility and ageing resistance, the requirements of the airtight oxygen chamber construction material are met, the normal use of the airtight oxygen chamber in a complicated and variable environment is met, the conditions of rapid aging, bacteria growth and poor stability are not easily influenced by the environment in the use process, the service life of the airtight oxygen chamber is prolonged, and safe and guaranteed treatment services are provided for patients.
Drawings
FIG. 1 is a table of comparative example data in accordance with the present invention;
FIG. 2 is a table of data according to the present invention;
fig. 3 is a data line graph of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides the technical scheme that: the mould-proof hydrolysis-resistant polyurethane airtight oxygen cabin material comprises the following raw materials:
the high-strength hydrophobic polyurethane, an auxiliary agent, a rare earth complex, a composite filler, a modified polyisocyanate curing agent and a hindered phenol antioxidant;
the parts of the raw materials are as follows:
35-50 parts of high-strength hydrophobic polyurethane, 6-12 parts of an auxiliary agent, 15-30 parts of a rare earth complex, 8-15 parts of a composite filler, 1-3 parts of a modified polyisocyanate curing agent and 5-10 parts of a hindered phenol antioxidant;
the modified polyisocyanate curing agent is based on a polyisocyanate raw material, utilizes the characteristics of a hydroxyl acrylate monomer, firstly carries out hydroxyl end capping on polyisocyanate, then carries out free radical copolymerization, and finally carries out hydrophilic modification, thereby synthesizing the modified polyisocyanate curing agent, high-strength hydrophobic polyurethane is taken as a main raw material, the high-strength and hydrophobic effects are achieved, the hydrolysis resistance of the polyurethane material of the airtight oxygen cabin is improved, and then an auxiliary agent, a rare earth complex, a composite filler, the modified polyisocyanate curing agent and a hindered phenol antioxidant are matched.
Example 2
The invention provides the technical scheme that: the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material comprises the following raw materials:
the high-strength hydrophobic polyurethane comprises phenol, formaldehyde aqueous solution, ammonia water, castor oil, ethylene glycol, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate and acetone, wherein the auxiliary agent comprises an adhesion promoter, a dispersing agent, a leveling agent, an antifoaming agent and a flame retardant, the adhesion promoter, the dispersing agent, the leveling agent, the antifoaming agent and the flame retardant are respectively 0.5-1 part, 0.6-1.4 part, 0.1-0.3 part, 0.2-0.6 part and 5-8 parts, and the composite filler comprises graphene oxide, a carbon nanotube, nano titanium dioxide, nano zinc oxide, nano copper oxide, nano carbon fiber and silicon dioxide in a weight ratio of 8:8:10:6:9:3:6, mixing the raw materials of the rare earth complex, namely polyvinyl alcohol, isopropanolamine, acetonitrile, p-nitro phenyl chloroformate, chitosan, deionized water, modified polyvinyl alcohol, europium chloride and lanthanum chloride, wherein the raw material of the hindered phenol antioxidant consists of polyether trihydric alcohol, isocyanate and a catalyst, and the catalyst consists of triethylene diamine and stannous octoate;
the parts of the raw materials are as follows:
35-50 parts of high-strength hydrophobic polyurethane, 6-12 parts of an auxiliary agent, 15-30 parts of a rare earth complex, 8-15 parts of a composite filler, 1-3 parts of a modified polyisocyanate curing agent and 5-10 parts of a hindered phenol antioxidant;
the modified polyisocyanate curing agent is prepared by using a polyisocyanate raw material as a base, performing hydroxyl end capping on polyisocyanate by utilizing the characteristics of a hydroxyl acrylate monomer, performing free radical copolymerization, and performing hydrophilic modification;
the preparation method of the mould-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material comprises the following preparation steps:
s1, preparing high-strength hydrophobic polyurethane: firstly, mixing phenol and a formaldehyde aqueous solution, after the phenol-formaldehyde aqueous solution is uniformly stirred, heating the phenol-formaldehyde aqueous solution for the first time by using a heating furnace, wherein the temperature range of the heating furnace for the first heating of the phenol-formaldehyde aqueous solution is between 55 and 60 ℃, the time of dropwise adding ammonia water after the first heating is between 20 and 30 minutes, then dropwise adding ammonia water into the phenol-formaldehyde aqueous solution, heating the heating furnace for the second heating, wherein the temperature range of the heating furnace for the second heating of the phenol-formaldehyde aqueous solution is between 65 and 75 ℃, after the second heating is finished, preserving heat for 15 to 25 minutes, dropwise adding castor oil into the phenol-formaldehyde aqueous solution, wherein the time of dropwise adding castor oil is between 30 and 35 minutes, heating the heating furnace for the third heating, wherein the temperature range of the heating furnace for the third heating of the phenol-formaldehyde aqueous solution is between 75 and 85 ℃, preserving heat for 10 to 15 hours, cooling the heating furnace to 30 to 45 ℃ after reduced pressure distillation, then adding ethylene glycol into the phenol-formaldehyde aqueous solution, and preserving heat for 60 to 80 minutes to obtain the castor oil modified phenolic resin;
secondly, uniformly mixing the castor oil modified phenolic resin, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate and acetone to obtain a mixed solution, placing the mixed solution on a heating furnace, heating the castor oil modified phenolic resin mixed solution by the heating furnace for the first time at a temperature of between 80 and 100 ℃, vacuumizing the mixed solution, heating the castor oil modified phenolic resin mixed solution by the heating furnace for the second time at a temperature of between 100 and 120 ℃, preserving heat for 1 to 2 hours, continuously heating the castor oil modified phenolic resin mixed solution by the heating furnace for the third time at a temperature of between 120 and 130 ℃, controlling the curing time to be between 1 and 3 hours, and curing to obtain the high-strength hydrophobic polyurethane;
s2, preparing a rare earth complex: under the protection of nitrogen, preparing two parts of acetonitrile with the same amount, adding polyvinyl alcohol and isopropanolamine into the first part of acetonitrile, uniformly stirring to obtain a solution A, stirring the solution A at 65-75 ℃, dissolving p-nitrophenyl chloroformate into the second part of acetonitrile to obtain a solution B, adding the solution B into the solution A, uniformly stirring for reaction, adding the solution B into the solution A, uniformly stirring at 5-10 ℃, stirring for 10-20 hours, after the reaction is finished, putting the solution B into a refrigerator for freezing for 5-10 hours, sequentially filtering, evaporating, precipitating and drying to obtain modified polyvinyl alcohol, then dissolving chitosan in deionized water to obtain a solution C, stirring the solution C at 55-70 ℃ for 30-50 minutes, then cooling to room temperature, then adding the modified polyvinyl alcohol, stirring at 30-35 ℃ for 20-35 hours, dissolving the solution C in dialysis, rotary evaporation, graft drying to obtain polyvinyl alcohol, then adding the graft polyvinyl alcohol, adjusting the pH value of the graft to 20-85, adding the modified polyvinyl alcohol, dialyzing, reacting, and grinding to obtain a neutral rare earth chloride solution D, and drying to obtain a neutral reaction solution D;
s3, preparing a hindered phenol antioxidant: firstly, uniformly stirring polyether polyol and a catalyst by using a high-speed stirrer to obtain a mixture, quickly pouring isocyanate with accurate measurement into the mixture, then stirring at a high speed to obtain a mixed solution, wherein the stirring speed of the high-speed stirrer to the mixture is 3000-5000r/min, the stirring time is 40-60 s, the high-speed stirrer to the mixed solution is 6000-8000r/min, the stirring time is 6-10s, then pouring the stirred mixed solution into a test mold, and demolding when the temperature of a test sample formed after the raw material components in the mixed solution react is reduced to room temperature, thus obtaining the hindered phenol antioxidant;
s4, preparing an oxygen cabin material: then, mixing the high-strength hydrophobic polyurethane obtained in the step S1, the rare earth complex obtained in the step S2 and the composite filler by using a high-speed mixer, uniformly mixing to obtain an oxygen bin material mixture A, then placing the hindered phenol antioxidant, the auxiliary agent and the modified polyisocyanate curing agent obtained in the step S3 into an oxygen bin material mixture B for high-speed mixing, uniformly mixing the oxygen bin material mixture A and the oxygen bin material mixture B by using a slow mode, a fast mode and a slow mode by using the high-speed mixer, controlling the speed of the high-speed mixer to be 3000-5000r/min and the mixing time to be 3-5min when a first slow mode is adopted, controlling the speed of the high-speed mixer to be 6000-8000r/min and the mixing time to be 1-3min when a second fast mode is adopted, controlling the speed of the high-speed mixer to be 2000-3000r/min and the mixing time to be 5-10min when a third slow mode is adopted, the oxygen bin finished product material can be prepared, high-strength hydrophobic polyurethane is used as a main raw material, the high-strength hydrophobic effect is achieved, the hydrolysis resistance of the airtight oxygen bin polyurethane material is improved, and the auxiliary agent, the rare earth complex, the composite filler, the modified polyisocyanate curing agent and the hindered phenol antioxidant are matched, so that the airtight oxygen bin polyurethane material has the functions of mildew resistance, bacteria resistance, water resistance, hydrolysis resistance, high adhesion, good water dispersibility and aging resistance except the quick gelling, high hardness and high fracture resistance and tensile property of the airtight oxygen bin polyurethane material, meets the requirements of airtight oxygen bin construction materials, meets the normal use of the airtight oxygen bin in a complicated and variable environment, is not easily influenced by the environment in the using process, has the conditions of quick aging, bacteria growth and mildew resistance and poor stability, and prolongs the service life of the airtight oxygen bin, providing patients with safe and guaranteed therapeutic services.
Referring to fig. 1-3, the best data of gel time, hardness, tensile strength, elongation at break and peel strength disclosed in the technical scheme of the present invention are 30min, 78A, 11.8MPa, 260% and 5.86MPa respectively, while the best data of gel time, hardness, tensile strength, elongation at break and peel strength disclosed in the technical scheme of the present invention are 22min, 90A, 14.3MPa, 285% and 8.56MPa respectively, and the material is peeled off, which are all obviously superior to the performance of the polyurethane material in the technical scheme of the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The mould-resistant hydrolysis-resistant polyurethane airtight oxygen bin material is characterized in that: the method comprises the following raw materials:
the high-strength hydrophobic polyurethane, an auxiliary agent, a rare earth complex, a composite filler, a modified polyisocyanate curing agent and a hindered phenol antioxidant;
the parts of the raw materials are as follows:
35-50 parts of high-strength hydrophobic polyurethane, 6-12 parts of an auxiliary agent, 15-30 parts of a rare earth complex, 8-15 parts of a composite filler, 1-3 parts of a modified polyisocyanate curing agent and 5-10 parts of a hindered phenol antioxidant;
the modified polyisocyanate curing agent is synthesized by using a polyisocyanate raw material as a basis, firstly carrying out hydroxyl end capping on polyisocyanate by utilizing the characteristics of a hydroxyl acrylate monomer, then carrying out free radical copolymerization, and finally carrying out hydrophilic modification.
2. The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 1, wherein: the high-strength hydrophobic polyurethane consists of phenol, formaldehyde aqueous solution, ammonia water, castor oil, ethylene glycol, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate and acetone.
3. The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 1, wherein: the auxiliary agent consists of an adhesion promoter, a dispersing agent, a flatting agent, a defoaming agent and a flame retardant, wherein the adhesion promoter, the dispersing agent, the flatting agent, the defoaming agent and the flame retardant are respectively 0.5-1 part, 0.6-1.4 part, 0.1-0.3 part, 0.2-0.6 part and 5-8 parts.
4. The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 1, wherein: the composite filler is prepared from graphene oxide, carbon nano tubes, nano titanium dioxide, nano zinc oxide, nano copper oxide, nano carbon fibers and silicon dioxide according to the weight ratio of 8:8:10:6:9:3:6 mixing to obtain the final product.
5. The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material as claimed in claim 1, wherein: the rare earth complex is prepared from polyvinyl alcohol, isopropanolamine, acetonitrile, p-nitro phenyl chloroformate, chitosan, deionized water, modified polyvinyl alcohol, europium chloride and lanthanum chloride.
6. The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material and the preparation method thereof as claimed in claim 1, wherein: the hindered phenol antioxidant is prepared from polyether triol, isocyanate and a catalyst, wherein the catalyst is composed of triethylene diamine and stannous octoate.
7. A method for preparing a mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material, according to the above claims 1-6, the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material is characterized in that: the preparation method comprises the following preparation steps:
s1, preparing high-strength hydrophobic polyurethane: firstly, mixing phenol and a formaldehyde aqueous solution, after the phenol-formaldehyde-water mixed solution is uniformly stirred, heating the phenol-formaldehyde-water mixed solution by using a heating furnace for the first time, then dropwise adding ammonia water into the phenol-formaldehyde-water mixed solution, heating by using the heating furnace for the second time, dropwise adding castor oil into the phenol-formaldehyde-water mixed solution, heating by using the heating furnace for the third time, cooling the heating furnace to 30-45 ℃ after reduced pressure distillation, then adding ethylene glycol into the phenol-formaldehyde-water mixed solution, and preserving heat for 60-80min to obtain castor oil modified phenolic resin;
secondly, uniformly mixing the castor oil modified phenolic resin, 1,6-hexamethylene diisocyanate, dipropylene glycol, trimethylolethane, dibutyltin dilaurate and acetone to obtain a mixed solution, then placing the mixed solution on a heating furnace, heating the castor oil modified phenolic resin mixed solution by the heating furnace for the first time, vacuumizing the mixed solution, then heating the castor oil modified phenolic resin mixed solution by the heating furnace for the second time, then continuously heating the castor oil modified phenolic resin mixed solution by the heating furnace for the third time, and curing to obtain the high-strength hydrophobic polyurethane;
s2, preparing a rare earth complex: under the protection of nitrogen, preparing two parts of acetonitrile with the same quantity, adding polyvinyl alcohol and isopropanolamine into the first part of acetonitrile, uniformly stirring to obtain a solution A, dissolving phenyl p-nitrochloroformate into the second part of acetonitrile to obtain a solution B, adding the solution B into the solution A, uniformly stirring for reaction, freezing in a refrigerator for 5-10 hours after the reaction is finished, sequentially filtering, evaporating, precipitating and drying to obtain modified polyvinyl alcohol, then dissolving chitosan into deionized water to obtain a solution C, then adding the modified polyvinyl alcohol, stirring for 20-35 hours at 30-35 ℃, dialyzing after the stirring is finished, performing rotary evaporation and drying to obtain grafted polyvinyl alcohol, then adding the grafted polyvinyl alcohol into the deionized water, adding europium chloride and lanthanum chloride to obtain a solution D, then adjusting the pH value of a solution D system to be neutral, reacting for 20-30 minutes at 75-85 ℃, dialyzing, drying and grinding after the reaction is finished to obtain a rare earth complex;
s3, preparing a hindered phenol antioxidant: firstly, uniformly stirring polyether polyol and a catalyst by using a high-speed stirrer to obtain a mixture, quickly pouring accurately metered isocyanate into the mixture, then stirring at a high speed to obtain a mixed solution, pouring the stirred mixed solution into a test mold, and demolding when the temperature of a sample formed after raw material components in the mixed solution react is reduced to room temperature to obtain a hindered phenol antioxidant;
s4, preparing an oxygen cabin material: and then, mixing the high-strength hydrophobic polyurethane obtained in the step S1, the rare earth complex obtained in the step S2 and the composite filler by using a high-speed stirrer, uniformly mixing to obtain an oxygen bin material mixture A, and then putting the hindered phenol antioxidant, the auxiliary agent and the modified polyisocyanate curing agent obtained in the step S3 into the oxygen bin material mixture B for high-speed stirring to obtain the oxygen bin finished product material.
8. The preparation method of the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 7, wherein: in the S1 high-strength hydrophobic polyurethane preparation process, the temperature range of the heating furnace for heating the phenol formaldehyde water mixed solution for the first time is between 55 and 60 ℃, the time for dripping ammonia water after the first heating is between 20 and 30 minutes, the temperature range of the heating furnace for heating the phenol formaldehyde water mixed solution for the second time is between 65 and 75 ℃, the temperature range of the heating furnace for dripping castor oil is between 30 and 35 minutes after the second heating is finished and then is kept for 15 to 25 minutes, and the temperature range of the heating furnace for heating the phenol formaldehyde water mixed solution for the third time is between 75 and 85 ℃ and is kept for 10 to 15 hours; the first heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 80 and 100 ℃, the second heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 100 and 120 ℃, the temperature is kept for 1 to 2 hours, the third heating temperature of the heating furnace for heating the castor oil modified phenolic resin mixed solution is between 120 and 130 ℃, and the curing time is controlled to be between 1 and 3 hours.
9. The preparation method of the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 7, wherein: in the S2 rare earth complex preparation process, the solution A is stirred at the temperature of 65-75 ℃, the solution B is added into the solution A and then is uniformly stirred at the temperature of 5-10 ℃, the stirring reaction time is 10-20h, the solution C is stirred at the temperature of 55-70 ℃ for 30-50min and then is stirred, and then the temperature is reduced to the room temperature.
10. The preparation method of the mildew-resistant hydrolysis-resistant polyurethane airtight oxygen bin material as claimed in claim 7, wherein: in the preparation processes of the S3 hindered phenol antioxidant and the S4 oxygen cabin material, the high-speed stirrer stirs the mixture at a speed of 3000-5000r/min for 40-60S, and the high-speed stirrer stirs the mixed solution at a speed of 6000-8000r/min for 6-10S; the high-speed stirrer uniformly stirs the oxygen bin material mixture A and the oxygen bin material mixture B by adopting a slow-speed, fast-speed and slow-speed three-gear mode, when a first slow gear is adopted, the speed of the high-speed stirrer is controlled to be 3000-5000r/min, the stirring time is 3-5min, when a second fast gear is adopted, the speed of the high-speed stirrer is controlled to be 6000-8000r/min, the stirring time is 1-3min, when a third slow gear is adopted, the speed of the high-speed stirrer is controlled to be 2000-3000r/min, and the stirring time is 5-10min.
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Application publication date: 20221101 |