CN114957970A - Wear-resistant and anti-skid single-component moisture-cured silicon-containing polyurethane plastic runway surface layer and preparation method thereof - Google Patents
Wear-resistant and anti-skid single-component moisture-cured silicon-containing polyurethane plastic runway surface layer and preparation method thereof Download PDFInfo
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- CN114957970A CN114957970A CN202210693872.5A CN202210693872A CN114957970A CN 114957970 A CN114957970 A CN 114957970A CN 202210693872 A CN202210693872 A CN 202210693872A CN 114957970 A CN114957970 A CN 114957970A
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- Prior art keywords
- containing polyurethane
- component
- silicon
- wear
- resistant
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 80
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 78
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 74
- 239000010703 silicon Substances 0.000 title claims abstract description 74
- 229920003023 plastic Polymers 0.000 title claims abstract description 51
- 239000004033 plastic Substances 0.000 title claims abstract description 51
- 239000002344 surface layer Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 238000013008 moisture curing Methods 0.000 claims abstract description 60
- 239000000853 adhesive Substances 0.000 claims abstract description 45
- 230000001070 adhesive effect Effects 0.000 claims abstract description 45
- 239000002270 dispersing agent Substances 0.000 claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 12
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 102
- 239000005543 nano-size silicon particle Substances 0.000 claims description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 30
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 29
- 229920000570 polyether Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000000377 silicon dioxide Substances 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000012686 silicon precursor Substances 0.000 claims description 12
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 9
- 238000001723 curing Methods 0.000 claims description 9
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 9
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 7
- 229920005862 polyol Polymers 0.000 claims description 7
- 150000003077 polyols Chemical class 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 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
- 238000007259 addition reaction Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 claims description 6
- -1 carboxylic acid glycidyl ester Chemical group 0.000 claims description 5
- 239000005056 polyisocyanate Substances 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 5
- FMGBDYLOANULLW-UHFFFAOYSA-N 3-isocyanatopropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCN=C=O FMGBDYLOANULLW-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 7
- 238000012549 training Methods 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 125000005587 carbonate group Chemical group 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 239000004970 Chain extender Substances 0.000 description 3
- 239000005058 Isophorone diisocyanate Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 229920013701 VORANOL™ Polymers 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 150000003335 secondary amines Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 2
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 1
- LVASCWIMLIKXLA-CABCVRRESA-N 7-bromo-6-chloro-3-[3-[(2r,3s)-3-hydroxypiperidin-2-yl]-2-oxopropyl]quinazolin-4-one Chemical compound O[C@H]1CCCN[C@@H]1CC(=O)CN1C(=O)C2=CC(Cl)=C(Br)C=C2N=C1 LVASCWIMLIKXLA-CABCVRRESA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- QQWAKSKPSOFJFF-UHFFFAOYSA-N oxiran-2-ylmethyl 2,2-dimethyloctanoate Chemical compound CCCCCCC(C)(C)C(=O)OCC1CO1 QQWAKSKPSOFJFF-UHFFFAOYSA-N 0.000 description 1
- OZCWUNHGNVXCCO-UHFFFAOYSA-N oxiran-2-ylmethyl hydrogen carbonate Chemical group OC(=O)OCC1CO1 OZCWUNHGNVXCCO-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- 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
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3893—Low-molecular-weight compounds having heteroatoms other than oxygen containing silicon
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a wear-resistant anti-slip single-component moisture-cured silicon-containing polyurethane plastic runway surface layer and a preparation method thereof, wherein (a) at least one single-component moisture-cured silicon-containing polyurethane adhesive is adopted; (b) at least one nanosilica; (c) at least one nanosilica dispersant; wherein the structural formula of the component (c) is shown as the formula (1):
R 1 is methyl or ethyl, R 2 Is alkyl with 1-12 carbon atoms, m is an integer of 10-30, n is an integer of 0-20, and m is more than or equal to n. The anti-wear and anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer prepared by the invention has the advantages that the anti-slip surface layer and the bottom layer of the runway are firmly bonded and connected into a whole, so that the phenomenon that grains of the colloidal particle type plastic runway are typically easy to fall is solved, the quality problems and hidden dangers caused by assembling the prefabricated runway block by block are also prevented, the surface is attractive, the durability is long, various training and competition places can be paved, and the pavement is particularly suitable for paving more sports grounds and recreation places in schools.
Description
Technical Field
The invention belongs to the technical field of plastic runways, and particularly relates to a wear-resistant and anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer and a preparation method thereof.
Background
Along with the rapid economic development of China, official racetracks in China are continuously upgraded, even the official racetracks made of traditional cinder are replaced by polyurethane plastic runways, and the polyurethane plastic runways are applied to floor paving materials of competition fields due to the advantages of good elasticity, wear resistance, aging resistance and the like.
In the construction process of the current silicon PU field, the foundation treatment of the field is firstly carried out, after the treatments such as cleaning, leveling and the like are carried out on the foundation of the field, the construction of the elastic layer is then carried out on the foundation, after the elastic layer is sampled and polished, the color separation spraying is carried out on the elastic layer according to the type of the court or the requirement of a user to form a surface layer, and finally the lineation is carried out on the surface layer. After the silicon PU sports ground manufactured by the construction is used for a long time, the sprayed surface layer is often worn, so that the elastic layer is exposed, the appearance is very unattractive, the performance of the runway is reduced, the plastic particles at the bottom layer fall off to influence the movement of people, and the playing of the player technology is further adversely affected.
Chinese patent application No. 201310609304.3 discloses a breathable polyurethane plastic track surface layer gluing material, which is prepared from the following components in percentage by mass: 3-4 of a component A and a component B, wherein the component A is a prepolymer containing isocyanate end groups, which is prepared by reacting environment-friendly polyisocyanate, polyether polyol and an auxiliary agent in a reaction kettle at the temperature of 70-80 ℃ for 3-4 hours; the component B comprises trifunctional polyether polyol, inorganic filler, pigment, plasticizer, curing agent, antioxidant, ultraviolet absorbent and the like. The invention improves the problems of short service life, reduced anti-skid and anti-slip performance and high maintenance rate of the prior plastic track, reduces the manufacturing cost and the use cost, adopts environment-friendly materials as raw materials, avoids environmental pollution and provides guarantee for the health and safety of sporters. However, the polyurethane is of a two-component type, a chemical cross-linking agent or other curing agents are required to be additionally added, and excessive unreacted isocyanate groups have obvious toxicity and are harmful to human bodies; and it does not address the dispersibility of the filler in the material.
The nano silicon dioxide is one of the nano particles commonly used for preparing the composite material, but the solid phase of the nano silicon dioxide is easy to agglomerate, and the liquid phase of the nano silicon dioxide is easy to agglomerate, so how to avoid the agglomeration of the nano silicon dioxide is the key for playing the nano effect. The traditional method is to add a silane coupling agent as a dispersing agent, but the steric hindrance of the coupling agent is small, so that the dispersing effect of the coupling agent on the nano silicon dioxide is not obvious. The invention adds the reactive dispersant which has proper relative molecular mass, reduces the viscosity of the system and is convenient for construction; meanwhile, the silicon reaction type dispersing agent can react with the surface of the nano silicon dioxide to form a whole, so that pulverization of a runway surface layer is avoided; and the nano silicon dioxide is uniformly dispersed in the polyurethane, so that the weather resistance of the runway can be obviously improved.
Therefore, there is a need in the art for a moisture-curable silicone-containing polyurethane track surface layer with excellent properties, wear resistance, skid resistance, and long service life.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
a wear-resistant and anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer is composed of the following parts:
(a) at least one-component moisture-cure silicon-containing polyurethane adhesive;
(b) at least one nanosilica;
(c) at least one nanosilica dispersant;
wherein the structural formula of the component (c) is shown as the formula (1):
R 1 is methyl or ethyl, R 2 Is alkyl with 1-12 carbon atoms, m is an integer of 10-30, n is an integer of 0-20, and m is not less than n.
Preferably, the (a) component is 100 parts, and the (b) component is 3-10 parts; (c) the component is 0.5-1 part.
Preferably, the preparation method of the component (a) is as follows:
s1, preparation of organosilicon precursor a: adding aminopropyl trimethoxy silane and tertiary carboxylic acid glycidyl ester into a flask, and stirring to react under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding polyether polyol into a three-neck flask, heating to 120 ℃ for 100-.
Preferably, the molar ratio of aminopropyltrimethoxysilane to glycidyl versatate in the step S1 is 1: 1.05-2; the stirring reaction temperature is 20-40 ℃, and the stirring time is 3-6 h.
According to the polyurethane adhesive prepared by the invention, a novel chain extender is obtained by performing addition reaction on aminopropyl trimethoxy siloxane and glycidyl versatate, primary amine is converted into secondary amine, hydrophobic high-steric-hindrance tertiary carbonate is introduced, the reactivity of the tertiary carbonate is reduced, and the tolerance of trimethyl siloxane groups to water in the air is obviously improved in a tertiary carbonate molecular environment with strong hydrophobicity, so that the prepared adhesive has moderate viscosity and good stability.
Preferably, the polyether polyol in the step S2 is 150-250 parts, the polyisocyanate is 20-40 parts, the catalyst is 0.3-0.8 part, and the organosilicon precursor a is 2-6 parts.
The polyether polyol and the polyisocyanate compound added in the adhesive can effectively adjust and control the viscosity and the content of isocyanate groups of the adhesive, and the content of the effective functional groups of the polyisocyanate is high, so that the adhesive and an adherend are favorably chemically bonded to form a network structure with high crosslinking density, and the adhesive has excellent bonding performance.
The single-component moisture-curing silicon-containing polyurethane adhesive prepared by the invention has moderate viscosity, can not generate cross linking in the reaction process and has good stability.
Preferably, the component (c) is prepared by the addition reaction of monomethoxy polyether and isocyanatopropyl triethoxysilane or 3-isocyanatopropyl trimethoxysilane under the action of a catalyst, and the molar ratio of the monomethoxy polyether to the isocyanatopropyl triethoxysilane or 3-isocyanatopropyl trimethoxysilane is 1: 1.
wherein, the methoxy polyether takes methanol as an initiator, alkylene oxide is used as an ethoxylation monomer, and the number average molecular weight of the monomethoxy polyether is within the range of 800-2000; the alkylene oxide is any one or mixture of two of ethylene oxide and propylene oxide, and when the polyether is copolymerized by two alkylene oxides, the ethylene oxide and the propylene oxide can be block polymerization or random polymerization.
Preferably, the addition reaction temperature is 70-90 ℃, the reaction time is 2-4h, and the catalyst is one or more of dibutyltin dilaurate and stannous isooctanoate.
Preferably, the particle size of the (b) component is 20 to 60 nm.
Nano SiO 2 Is a white powder without pollution, odor and toxicity, and has a reticular and flocculent amorphous structure. It has great specific surface area, high dispersivity, different hydroxyl bonding state and unsaturated molecular bond, and unstable silica structure in the surface, so that nano SiO 2 Is an ideal nanometer modified material.
Preferably, the number average molecular weight of the (c) component is 1000-.
The unsaturated bond and unstable silica structure on the surface of the nano silicon dioxide particle can be combined with a plurality of organic groups to form a stable structure, and a plurality of hydroxyl groups in different bonding states exist on the surface of the nano silicon dioxide particle, so that a large number of hydrogen bonds are easily generated, and the agglomeration phenomenon is generated; the nano silicon dioxide dispersing agent is added, so that the nano silicon dioxide dispersing agent can be uniformly dispersed in the polyurethane adhesive, and the mechanical property and the elasticity of the surface layer of the plastic track are improved.
The invention also discloses a preparation method of the wear-resistant anti-slip single-component moisture-cured silicon-containing polyurethane plastic runway surface layer, which comprises the following steps:
(1 preparation of nano-silica dispersion resin, namely uniformly stirring 1/4 total amount of the single-component moisture-curing silicon-containing polyurethane adhesive, the nano-silica dispersing agent and the nano-silica to obtain nano-silica dispersion resin;
(2) preparing a surface layer of the plastic track: and (2) adding the nano silicon dioxide dispersion resin obtained in the step (1) into the rest single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 1-2h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 60-70 ℃ and 50-60% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the wear-resistant anti-slip single-component moisture-curing silicon-containing polyester plastic runway surface layer prepared by the invention, the nano silicon dioxide is added to improve the wear resistance, and meanwhile, the decomposition problem is solved by adding the synthesized novel nano silicon dioxide dispersing agent; in the prior art, a silane coupling agent is usually added, but the steric hindrance of the coupling agent is small, so that the dispersing effect of the coupling agent on the nano silicon dioxide is not obvious; the dispersing agent is a reactive dispersing agent, and the end group silicon of the dispersing agent can react with the surface of the nano silicon dioxide to form a whole, so that the nano silicon dioxide powder is prevented from being worn and falling off and further entering the body of an athlete.
(2) According to the wear-resistant anti-slip single-component moisture-curing silicon-containing polyester plastic runway surface layer prepared by the invention, the added single-component moisture-curing silicon-containing polyurethane adhesive is subjected to addition reaction by aminopropyl trimethoxy siloxane and glycidyl versatate to obtain a novel chain extender, primary amine is converted into secondary amine, and hydrophobic high-steric-hindrance tertiary carbonate is introduced to reduce the reactivity of the chain extender.
(3) The anti-wear and anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer prepared by the invention has the advantages that the anti-slip surface layer and the bottom layer of the runway are firmly bonded and connected into a whole, so that the phenomenon that grains of the colloidal particle type plastic runway are typically easy to fall is solved, the quality problems and hidden dangers caused by assembling the prefabricated runway block by block are also prevented, the surface is attractive, the durability is long, various training and competition places can be paved, and the pavement is particularly suitable for paving more sports grounds and recreation places in schools.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood 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.
The polyether glycol is purchased from the Dow chemical company, has the model of Voranol 4000LM and the hydroxyl value of 28 mgKOH/g; the polyether triol is available from the Dow chemical company, Voranol 8595LM, and has a hydroxyl value of 48 mgKOH/g; the aminopropyl trimethoxy siloxane is purchased from New Wuda organosilicon materials, Inc. in Hubei, and has the brand number of WD-56; the tertiary carbonic acid glycidyl ester is purchased from Nanjing Hui Zhen trade company, manufactured by American Mei Tu company, and has the brand number of Cardura E-10P; the HDI trimer is purchased from Wanhua chemical Co., Ltd, and has a mark number of HT-100; MDI-50 is purchased from Van Hua chemical Co., Ltd; the isophorone diisocyanate tripolymer is produced by Germany bayer company, and the brand is Desmodur Z4470; the NCO content was determined according to method A of the national Standard GB 12009.4-2016.
Example 1
A preparation method of the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer comprises the following steps:
(1) preparation of nano-silica dispersion resin: uniformly stirring 25g of single-component moisture-curing silicon-containing polyurethane adhesive, 1g of nano-silica dispersing agent and 10g of nano-silica to obtain nano-silica dispersed resin;
(2) preparing a surface layer of the plastic track: adding 36g of the nano-silica dispersion resin obtained in the step (1) into 75g of a single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 2h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 70 ℃ and 50% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
The preparation method of the single-component moisture-curing silicon-containing polyurethane adhesive comprises the following steps:
s1, preparation of organosilicon precursor a: adding 1mol of aminopropyltrimethoxysilane and 1.05mol of glycidyl versatate into a flask, and stirring and reacting for 6 hours at the temperature of 20 ℃ under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding 150g of polyether glycol into a three-neck flask, heating to 100 ℃, dehydrating for 2h under a vacuum condition, then cooling to 25 ℃, then adding 20g of HDI tripolymer, 10g of MDI-50 and 0.3g of stannous isooctanoate, uniformly stirring, introducing nitrogen, then heating to 40 ℃, keeping the temperature for 3h, after the NCO of a test system is reduced to a theoretical value, then adding 2g of the organic silicon precursor a obtained in the step S31, and continuing to keep the temperature until the NCO is completely reacted, thus obtaining the single-component moisture-cured silicon-containing polyurethane adhesive.
The preparation method of the nano silicon dioxide dispersing agent comprises the following steps:
200g (0.1mol) of monomethoxy polyether (ethylene oxide and propylene oxide are used as polymerization monomers, the polyether molecular weight is 2000), 24.7g (0.1mol) of isocyanatopropyl triethoxysilane and 1g of dibutyltin dilaurate are added into a three-mouth flask, nitrogen is introduced, the reaction is carried out at 80 ℃ for 3 hours, and the nano silicon dioxide dispersing agent is obtained after the reaction is completed.
The particle size of the nano silicon dioxide is 20 nm; the number average molecular weight of the nano silicon dioxide dispersing agent is 2500.
Example 2
A preparation method of the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer comprises the following steps:
(1) preparation of nano-silica dispersion resin: uniformly stirring 25g of single-component moisture-curing silicon-containing polyurethane adhesive, 1g of nano-silica dispersing agent and 8g of nano-silica to obtain nano-silica dispersed resin;
(2) preparing a surface layer of the plastic track: and (2) adding 34g of the nano silicon dioxide dispersion resin obtained in the step (1) into 75g of single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 2h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 65 ℃ and 55% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
The preparation method of the single-component moisture-curing silicon-containing polyurethane adhesive comprises the following steps:
s1, preparation of organosilicon precursor a: adding 1mol of aminopropyltrimethoxysilane and 1.3mol of glycidyl versatate into a flask, and stirring and reacting for 5 hours at the temperature of 30 ℃ under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding 200g of polyether triol into a three-neck flask, heating to 110 ℃, dehydrating for 2h under a vacuum condition, then cooling to 30 ℃, then adding 20g of isophorone diisocyanate trimer, 10g of MDI-50 and 0.5g of stannous isooctanoate, uniformly stirring, introducing nitrogen, heating to 60 ℃, keeping the temperature for 2h, after the NCO of a test system is reduced to a theoretical value, then adding 4g of the organic silicon precursor a obtained in the step S1, and keeping the temperature until the NCO is completely reacted to obtain the single-component moisture-cured silicon-containing polyurethane adhesive.
The preparation method of the nano silicon dioxide dispersing agent comprises the following steps:
170g (0.1mol) of monomethoxy polyether (ethylene oxide and propylene oxide are used as polymerization monomers, the polyether molecular weight is 1700), 24.7g (0.1mol) of isocyanatopropyl triethoxysilane and 0.5g of dibutyltin dilaurate are added into a three-neck flask, nitrogen is introduced, the reaction is carried out at 90 ℃ for 2h, and the nano silicon dioxide dispersing agent is obtained after the reaction is finished.
The particle size of the nano silicon dioxide is 40 nm; the number average molecular weight of the nano silicon dioxide dispersing agent is 2000.
Example 3
A preparation method of the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer comprises the following steps:
(1) preparation of nano-silica dispersion resin: uniformly stirring 25g of single-component moisture-curing silicon-containing polyurethane adhesive, 0.75g of nano-silica dispersing agent and 6g of nano-silica to obtain nano-silica dispersed resin;
(2) preparing a surface layer of the plastic track: and (2) adding 31.75g of the nano silicon dioxide dispersion resin obtained in the step (1) into 75g of a single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 1h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 60 ℃ and 55% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
The preparation method of the single-component moisture-curing silicon-containing polyurethane adhesive comprises the following steps:
s1, preparation of organosilicon precursor a: adding 1mol of aminopropyltrimethoxysilane and 1.7mol of glycidyl versatate into a flask, and stirring and reacting for 4 hours at the temperature of 30 ℃ under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding 230g of polyether glycol into a three-neck flask, heating to 110 ℃, dehydrating for 1h under a vacuum condition, then cooling to 35 ℃, then adding 30g of HDI tripolymer, 10g of isophorone diisocyanate tripolymer and 0.6g of stannous isooctanoate, uniformly stirring, introducing nitrogen, then heating to 80 ℃, keeping the temperature for 2h, after the NCO of a test system is reduced to a theoretical value, then adding 5g of the organic silicon precursor a obtained in the step S1, and continuing to keep the temperature until the NCO is completely reacted, thus obtaining the single-component moisture-cured silicon-containing polyurethane adhesive.
The preparation method of the nano silicon dioxide dispersing agent comprises the following steps:
130g (0.1mol) of monomethoxy polyether (ethylene oxide and propylene oxide are used as polymerization monomers, the polyether molecular weight is 1300), 20.5g (0.1mol) of 3-isocyanate propyl trimethoxy silane and 0.5g of dibutyltin dilaurate are added into a three-neck flask, nitrogen is introduced, the reaction is carried out at 70 ℃ for 4 hours, and the nano silicon dioxide dispersing agent is obtained after the reaction is finished.
The particle size of the nano silicon dioxide is 50 nm; the number average molecular weight of the nano silicon dioxide dispersing agent is 1500.
Example 4
A preparation method of the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer comprises the following steps:
(1) preparation of nano-silica dispersion resin: uniformly stirring 25g of single-component moisture-curing silicon-containing polyurethane adhesive, 0.5g of nano-silica dispersing agent and 3g of nano-silica to obtain nano-silica dispersed resin;
(2) preparing a surface layer of the plastic track: adding 28.5g of the nano-silica dispersion resin obtained in the step (1) into 75g of a single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 1h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 60 ℃ and 50% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
The preparation method of the single-component moisture-curing silicon-containing polyurethane adhesive comprises the following steps:
s1, preparation of organosilicon precursor a: adding 1mol of aminopropyl trimethoxy silane and 2mol of glycidyl versatate into a flask, and stirring and reacting for 3 hours at 40 ℃ under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding 250g of polyether triol into a three-neck flask, heating to 120 ℃, dehydrating for 1h under a vacuum condition, then cooling to 20 ℃, then adding 25g of HDI tripolymer, 15g of MDI-50 and 0.8g of stannous isooctanoate, uniformly stirring, introducing nitrogen, then heating to 100 ℃, keeping the temperature for 1h, after the NCO of a test system is reduced to a theoretical value, then adding 6g of the organic silicon precursor a obtained in the step S1, and continuously keeping the temperature until the NCO is completely reacted to obtain the single-component moisture-cured silicon-containing polyurethane adhesive.
The preparation method of the nano silicon dioxide dispersing agent comprises the following steps:
80g (0.1mol) of monomethoxy polyether (ethylene oxide is used as a polymerization monomer, the polyether molecular weight is 800), 20.5g (0.1mol) of 3-isocyanate propyl trimethoxy silane and 0.5g of dibutyltin dilaurate are added into a three-neck flask, nitrogen is introduced, the reaction is carried out at 80 ℃ for 3 hours, and the nano silicon dioxide dispersing agent is obtained after the reaction is finished.
The particle size of the nano silicon dioxide is 60 nm; the number average molecular weight of the nano silicon dioxide dispersing agent is 1000.
Comparative example 1
A preparation method of the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer comprises the following steps:
(1) preparing nano silicon dioxide resin: uniformly stirring 25g of single-component moisture-curing silicon-containing polyurethane adhesive and 10g of nano silicon dioxide to obtain nano silicon dioxide resin;
(2) preparing a surface layer of the plastic track: and (2) adding 35g of the nano silicon dioxide resin obtained in the step (1) into 75g of the single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 2h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 70 ℃ and 50% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
The preparation method of the single-component moisture-curing silicon-containing polyurethane adhesive comprises the following steps:
s1, preparation of organosilicon precursor a: adding 1mol of aminopropyltrimethoxysilane and 1.05mol of glycidyl versatate into a flask, and stirring and reacting for 6 hours at the temperature of 20 ℃ under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding 150g of polyether glycol into a three-neck flask, heating to 100 ℃, dehydrating for 2h under a vacuum condition, then cooling to 25 ℃, then adding 20g of HDI tripolymer, 10g of MDI-50 and 0.3g of stannous isooctanoate, uniformly stirring, introducing nitrogen, then heating to 40 ℃, keeping the temperature for 3h, after the NCO of a test system is reduced to a theoretical value, then adding 2g of the organic silicon precursor a obtained in the step S1, and continuing to keep the temperature until the NCO is completely reacted, thus obtaining the single-component moisture-cured silicon-containing polyurethane adhesive.
The particle size of the nano silicon dioxide is 20 nm.
The wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layers prepared in examples 1 to 4 and comparative example 1 were subjected to a performance test, and the thickness of the sample was 4 mm. Wherein, Shore A hardness, tensile strength, elongation at break and anti-slip value are tested according to the national standard GB 36246-2018, the wear resistance is tested according to GB/T1768-2006 rotating rubber grinding wheel method for measuring color paint and varnish-wear resistance, and the test results are as the following table 1:
TABLE 1
As can be seen from Table 1, the wear-resistant and anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer prepared by the invention has good mechanical properties, good anti-slip properties and wear resistance, and good application prospects. Comparative example 1 no nano silica dispersant is added, and nano silica is easy to agglomerate due to large surface tension and large specific surface area, so that the silica nanoparticles are difficult to be uniformly dispersed in the polyurethane adhesive, and the performance of the adhesive is obviously reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 utility model provides a wear-resisting antiskid monocomponent moisture cure siliceous polyurethane plastic runway surface course which characterized in that, the surface course comprises following part:
(a) at least one-component moisture-cure silicon-containing polyurethane adhesive;
(b) at least one nanosilica;
(c) at least one nanosilica dispersant;
wherein the structural formula of the component (c) is shown as the formula (1):
R 1 is methyl or ethyl, R 2 Is alkyl with 1-12 carbon atoms, m is an integer of 10-30, n is an integer of 0-20, and m is not less than n.
2. The wear-resistant, non-slip, one-component, moisture-cure, silicon-containing polyurethane plastic runway surfacing according to claim 1, wherein the (a) component is 100 parts by weight, (b) component is 3-10 parts by weight; (c) the component is 0.5-1 part.
3. The wear-resistant and skid-resistant one-component moisture-curing silicon-containing polyurethane plastic runway surface layer as claimed in claim 1, wherein the component (a) is prepared by the following method:
s1, preparation of organosilicon precursor a: adding aminopropyl trimethoxy silane and tertiary carboxylic acid glycidyl ester into a flask, and stirring to react under the condition of nitrogen to obtain an organic silicon precursor a;
s2, preparing the single-component moisture-curing silicon-containing polyurethane adhesive: adding polyether polyol into a three-neck flask, heating to 120 ℃ for 100-.
4. The wear-resistant and slip-resistant one-component moisture-cure silicon-containing polyurethane plastic track surface layer according to claim 3, wherein the molar ratio of aminopropyltrimethoxysilane to glycidyl versatate in the step S1 is 1: 1.05-2; the stirring reaction temperature is 20-40 ℃, and the stirring time is 3-6 h.
5. The wear-resistant anti-slip one-component moisture-curing silicon-containing polyurethane plastic runway surface layer as claimed in claim 3, wherein in step S2, the polyether polyol is 150-250 parts, the polyisocyanate is 20-40 parts, the catalyst is 0.3-0.8 part, and the organosilicon precursor a is 2-6 parts.
6. The wear-resistant and skid-resistant one-component moisture-curable silicon-containing polyurethane plastic track surface layer according to claim 1, wherein the component (c) is prepared by the addition reaction of monomethoxy polyether and isocyanatopropyltriethoxysilane or 3-isocyanatopropyltrimethoxysilane under the action of a catalyst, and the molar ratio of the monomethoxy polyether to the isocyanatopropyltriethoxysilane or 3-isocyanatopropyltrimethoxysilane is 1: 1.
7. the wear-resistant and skid-resistant one-component moisture-curing silicon-containing polyurethane plastic track surface layer as claimed in claim 6, wherein the addition reaction temperature is 70-90 ℃ and the reaction time is 2-4h, and the catalyst is one or more of dibutyltin dilaurate and stannous isooctanoate.
8. The wear-resistant anti-slip one-component moisture-cure silicon-containing polyurethane plastic runway surface of claim 1, wherein the particle size of the component (b) is 20-60 nm.
9. The wear-resistant anti-slip one-component moisture-curing silicon-containing polyurethane plastic runway surface layer as claimed in claim 1, characterized in that the number average molecular weight of the component (c) is 1000-.
10. A method for preparing the wear-resistant and skid-resistant single-component moisture-curing silicon-containing polyurethane plastic runway surface layer as described in any one of claims 1 to 9, which comprises the following steps:
(1) preparation of nano-silica dispersion resin: uniformly stirring 1/4 total amount of the single-component moisture-curing silicon-containing polyurethane adhesive, the nano-silica dispersing agent and the nano-silica to obtain nano-silica dispersed resin;
(2) preparing a surface layer of the plastic track: and (2) adding the nano silicon dioxide dispersion resin obtained in the step (1) into the rest single-component moisture-curing silicon-containing polyurethane adhesive, stirring uniformly at room temperature, performing ultrasonic dispersion for 1-2h, then pouring into a mold, compacting, standing at room temperature for 24h, demolding, and curing at 60-70 ℃ and 50-60% relative humidity for 24h to obtain the wear-resistant anti-slip single-component moisture-curing silicon-containing polyurethane plastic runway surface layer.
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