CN116606542A - Wear-resistant and aging-resistant modified polyurethane elastomer composite material and preparation method and application thereof - Google Patents
Wear-resistant and aging-resistant modified polyurethane elastomer composite material and preparation method and application thereof Download PDFInfo
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- CN116606542A CN116606542A CN202310630843.9A CN202310630843A CN116606542A CN 116606542 A CN116606542 A CN 116606542A CN 202310630843 A CN202310630843 A CN 202310630843A CN 116606542 A CN116606542 A CN 116606542A
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- polyurethane elastomer
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- molybdenum disulfide
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- 229920003225 polyurethane elastomer Polymers 0.000 title claims abstract description 71
- 230000032683 aging Effects 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 96
- 239000004698 Polyethylene Substances 0.000 claims abstract description 52
- 229920000573 polyethylene Polymers 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical class S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229920002635 polyurethane Polymers 0.000 claims abstract description 30
- 239000004814 polyurethane Substances 0.000 claims abstract description 30
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 25
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 14
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims description 58
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 48
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 45
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 45
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 35
- 238000001914 filtration Methods 0.000 claims description 35
- 238000005406 washing Methods 0.000 claims description 35
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 30
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 22
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 22
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 20
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 20
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000005046 Chlorosilane Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- KNTKCYKJRSMRMZ-UHFFFAOYSA-N 3-chloropropyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)CCCCl KNTKCYKJRSMRMZ-UHFFFAOYSA-N 0.000 claims description 11
- 229920001610 polycaprolactone Polymers 0.000 claims description 11
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 10
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 10
- 150000002009 diols Chemical class 0.000 claims description 10
- 239000003999 initiator Substances 0.000 claims description 10
- 239000004632 polycaprolactone Substances 0.000 claims description 10
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 10
- 230000035484 reaction time Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000012300 argon atmosphere Substances 0.000 claims description 7
- WXNRYSGJLQFHBR-UHFFFAOYSA-N bis(2,4-dihydroxyphenyl)methanone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1O WXNRYSGJLQFHBR-UHFFFAOYSA-N 0.000 claims description 7
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 18
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 10
- 238000001291 vacuum drying Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000013522 chelant Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- 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)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of polyurethane, and discloses a wear-resistant and ageing-resistant modified polyurethane elastomer composite material, a preparation method and application thereof, wherein modified polyurethane is obtained through the reaction of an isocyanate-terminated polyurethane prepolymer and modified molybdenum disulfide grafted polyethylene, and then the polyurethane elastomer, modified polyurethane, an antioxidant and a lubricant with the mass ratio of 100:20-42:0.3-1.2:0.1-0.3 are mixed and vulcanized to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material, so that the ageing resistance of the polyurethane elastomer is improved, the ageing resistance of a matrix is longer, the wear resistance of the polyurethane elastomer can be effectively improved due to the ultra-high molecular weight polyethylene, excellent compatibility is achieved between the modified polyurethane and the polyurethane elastomer, and the obtained polyurethane elastomer composite material has excellent wear resistance and ageing resistance.
Description
Technical Field
The invention relates to the technical field of polyurethane, in particular to a wear-resistant and aging-resistant modified polyurethane elastomer composite material, and a preparation method and application thereof.
Background
Polyurethane elastomer (PUE) is a material between rubber and plastic, and has excellent abrasion resistance, mechanical properties and solvent resistance, and good rebound resilience. The polyurethane elastomer is widely used on a sealing ring, the polyurethane sealing ring is a dynamic sealing element most commonly used in hydraulic and pneumatic systems of mechanical equipment and is commonly used for sealing parts such as rods, valves and the like, and the performance of a sealing ring material plays an important role in the service life and the use safety of the mechanical equipment. The sealing ring made of polyurethane elastomer has great wear and tear after long-term use of machinery, and can age with the lapse of time, seriously influences life, so it is especially important to improve the wear-resisting and ageing-resisting properties of polyurethane elastomer.
Chinese patent CN103923457B discloses a high wear-resistant polyurethane elastomer and a preparation method thereof, wherein a softener, an organic antifriction agent and gas-phase white carbon black are added into a prepolymer component to prepare the polyurethane elastomer with excellent wear resistance and mechanical property, but the ageing resistance of the polyurethane elastomer is general, and the service life of the material is greatly influenced. Chinese patent application CN110452433A discloses an anti-aging rubber sealing ring material and a preparation method thereof, wherein the anti-aging rubber sealing ring is obtained through raw material mixing, primary mixed material reprocessing, secondary mixed rubber reprocessing, mold closing vulcanization molding, trimming and quality inspection classification, and the method is complex, and the bauxite powder is added to improve the wear resistance, poor compatibility and larger limitation of the material. Therefore, it is necessary to improve both the abrasion resistance and the aging resistance of the polyurethane elastomer.
Disclosure of Invention
In order to solve the technical problems, the invention provides a wear-resistant and aging-resistant modified polyurethane elastomer composite material, and a preparation method and application thereof, and the polyurethane elastomer composite material with excellent wear resistance and aging resistance is obtained.
In order to achieve the above purpose, the invention discloses a preparation method of a wear-resistant and aging-resistant modified polyurethane elastomer composite material, which comprises the following steps:
step (1) toluene, molybdenum disulfide (MoS) 2 ) Mixing with 3-chloropropyl methyl dimethoxy silane uniformly, heating to react, filtering after the reaction is finished, washing with toluene, and vacuum drying at 70-80 ℃ for 6-8h to obtain chlorosilane modified molybdenum disulfide;
uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate, reacting in an argon atmosphere, filtering after the reaction is finished, washing with acetone, and vacuum drying at 60-70 ℃ for 8-10 hours to obtain hydroxybenzophenone modified molybdenum disulfide;
uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene (UHMWPE), acrylic acid and initiator dibenzoyl peroxide, reacting, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 60-80 ℃ for 12-24 hours to obtain acrylic acid grafted polyethylene;
uniformly mixing dichloromethane, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-Dimethylaminopyridine (DMAP) and N, N' -Dicyclohexylcarbodiimide (DCC), reacting, filtering after the reaction is finished, washing with dichloromethane, and drying at 50-60 ℃ for 8-12h to obtain modified molybdenum disulfide grafted polyethylene;
mixing polycaprolactone diol (PCL) and Toluene Diisocyanate (TDI) according to a molar ratio of 2:1, heating and stirring, reacting at 85 ℃ for 3-4 hours to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, adding modified molybdenum disulfide grafted polyethylene, heating and stirring in a nitrogen atmosphere, reacting, adding absolute ethyl alcohol for blocking after the reaction is finished, filtering, washing with N, N-dimethylformamide, and drying at 65-75 ℃ for 12-15 hours to obtain modified polyurethane;
and (6) adding the polyurethane elastomer, the modified polyurethane, the antioxidant and the lubricant into an open mill for mixing, and vulcanizing after mixing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Preferably, in the step (1), the mass ratio of toluene, molybdenum disulfide and 3-chloropropyl methyl dimethoxy silane is 1200-1500:100:65-95.
Preferably, the temperature of the reaction in the step (1) is 70-80 ℃, and the reaction time is 15-18h.
Preferably, in the step (2), the mass ratio of the N, N-dimethylformamide, the 2,2', 4' -tetrahydroxybenzophenone, the chlorosilane modified molybdenum disulfide and the potassium carbonate is 1800-2400:135-160:100:90-108.
Preferably, the temperature of the reaction in the step (2) is 50-60 ℃ and the reaction time is 36-48h.
Preferably, the mass ratio of the dimethylbenzene, the ultra-high molecular weight polyethylene, the acrylic acid and the initiator dibenzoyl peroxide in the step (3) is 900-1400:100:42-70:2-5.
Preferably, the ultra-high molecular weight polyethylene has a molecular weight of (200-300) x 10 4 。
Preferably, the temperature of the reaction in the step (3) is 85-95 ℃ and the reaction time is 5-8h.
Preferably, in the step (4), the mass ratio of the dichloromethane, the hydroxybenzophenone modified molybdenum disulfide, the acrylic acid grafted polyethylene, the 4-dimethylaminopyridine and the N, N' -dicyclohexylcarbodiimide is 2400-3000:35-50:100:2-4:45-72.
Preferably, the temperature of the reaction in the step (4) is 20-35 ℃, and the reaction time is 48-60h.
Preferably, the mass ratio of the isocyanate-terminated polyurethane prepolymer, the xylene and the modified molybdenum disulfide grafted polyethylene in the step (5) is 100:650-800:9-15.
Preferably, the toluene diisocyanate in step (5) is toluene-2, 4-diisocyanate.
Preferably, the temperature of the reaction in the step (5) is 115-125 ℃, and the reaction time is 1-2h.
Preferably, the mass ratio of the polyurethane elastomer, the modified polyurethane, the antioxidant and the lubricant in the step (6) is 100:20-42:0.3-1.2:0.1-0.3.
Preferably, the temperature of the mixing in the step (6) is 170-180 ℃, and the mixing time is 8-10min.
Preferably, the antioxidant in the step (6) comprises one of tris (2, 4-di-tert-butylphenyl) phosphite and pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
Preferably, the lubricant in the step (6) comprises one of polyethylene wax and calcium stearate.
Preferably, the wear-resistant and ageing-resistant modified polyurethane elastomer composite material is prepared by the preparation method of the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Preferably, the wear-resistant and aging-resistant modified polyurethane elastomer composite is applied to a sealing ring.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, 3-chloropropyl methyl dimethoxy silane is used for modifying molybdenum disulfide, chlorine atoms are introduced into the surface of molybdenum disulfide to obtain chlorosilane modified molybdenum disulfide, the introduced chlorine atoms react with hydroxyl groups on 2,2', 4' -tetrahydroxy benzophenone under the action of potassium carbonate to obtain hydroxybenzophenone modified molybdenum disulfide, in a xylene solvent, ultrahigh molecular weight polyethylene and acrylic acid react under the action of dibenzoyl peroxide as an initiator to obtain acrylic acid grafted polyethylene, carboxyl groups are introduced into the surface of the polyethylene, the carboxyl groups on the surface of the acrylic acid grafted polyethylene and unreacted hydroxyl groups on the surface of the hydroxybenzophenone modified molybdenum disulfide react with a dehydrating agent N, N ' -dicyclohexylcarbodiimide in the presence of a catalyst to obtain modified molybdenum disulfide grafted polyethylene, hydroxyl groups on polycaprolactone diol react with isocyanate groups on toluene diisocyanate to obtain isocyanate-terminated polyurethane prepolymer, then the modified molybdenum disulfide grafted polyethylene is added, unreacted carboxyl groups on the modified molybdenum disulfide grafted polyethylene react with isocyanate on the isocyanate-terminated polyurethane prepolymer to obtain modified polyurethane, and the modified polyurethane, the modified polyurethane and the modified polyurethane elastomer are subjected to vulcanization-terminated polyurethane elastomer, and the modified polyurethane elastomer is subjected to vulcanization, and the modified polyurethane elastomer is subjected to aging-resistant, and the modified elastomer is compounded and vulcanized to obtain the modified elastomer.
The molybdenum disulfide added in the invention is of a layered structure, has good self-lubricating performance and bearing capacity on load, is easy to generate layering to form a sliding surface in the friction process, can effectively improve the wear resistance of a matrix, modifies the molybdenum disulfide, effectively avoids the aggregation of the molybdenum disulfide in the matrix, improves the dispersibility, meanwhile, has excellent mechanical property, can improve the mechanical property of the matrix, and the 2,2', 4' -tetrahydroxybenzophenone is an ultraviolet absorber with excellent performance, can absorb high-energy ultraviolet light, forms internal hydrogen bonds between carbonyl groups in molecules and hydrogen bonds in molecules to form chelate rings, and after absorbing the ultraviolet light energy, the internal hydrogen bonds are destroyed, the chelate rings are opened to perform corresponding energy conversion, convert the ultraviolet light energy into harmless low-radiation heat energy form to release the energy, improve the ageing resistance of the matrix, and simultaneously improve the ageing resistance of the ultraviolet absorber by a chemical grafting method, so that the ageing resistance time of the matrix is longer and the service life is prolonged.
The ultra-high molecular weight polyethylene used in the invention has regular molecular chain arrangement, low surface energy, wear resistance, impact resistance, high hardness and small dynamic friction coefficient, can effectively improve the wear resistance of polyurethane, and has excellent compatibility with polyurethane elastomer through the processing performance of the modified ultra-high molecular weight polyethylene, and can be uniformly mixed, so that the obtained polyurethane elastomer composite material has excellent wear resistance and aging resistance.
Drawings
FIG. 1 is a flow chart of the process of preparing a wear resistant and aging resistant modified polyurethane elastomer composite of the present invention;
FIG. 2 is a schematic illustration of a reaction for preparing a hydroxybenzophenone modified molybdenum disulfide in accordance with the present invention;
FIG. 3 is a schematic illustration of the reaction for preparing a modified molybdenum disulfide grafted polyethylene in accordance with the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Example 1
(1) Uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane in a mass ratio of 1200:100:65, heating to react at 70 ℃ for 18 hours, filtering after the reaction is finished, washing by using toluene, and drying in vacuum at 70 ℃ for 8 hours to obtain chlorosilane modified molybdenum disulfide;
(2) Uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate in a mass ratio of 1800:135:100:90, reacting at 50 ℃ for 48 hours in an argon atmosphere, filtering after the reaction, washing with acetone, and vacuum drying at 60 ℃ for 10 hours to obtain hydroxybenzophenone modified molybdenum disulfide;
(3) Uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide in a mass ratio of 900:100:42:2, reacting at 85 ℃ for 8 hours, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 60 ℃ for 24 hours to obtain acrylic acid grafted polyethylene;
(4) Uniformly mixing methylene dichloride, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide in a mass ratio of 2400:35:100:2:45, reacting for 60 hours at 20 ℃, filtering after the reaction is finished, washing with methylene dichloride, and drying for 12 hours at 50 ℃ to obtain modified molybdenum disulfide grafted polyethylene;
(5) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 3 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding modified molybdenum disulfide grafted polyethylene, wherein the mass ratio of the added isocyanate-terminated polyurethane prepolymer to the dimethylbenzene to the modified molybdenum disulfide grafted polyethylene is 100:650:9, heating and stirring in a nitrogen atmosphere, reacting for 2 hours at 115 ℃, adding absolute ethyl alcohol to terminate the reaction, filtering, washing with N, N-dimethylformamide, and drying for 15 hours at 65 ℃ to obtain modified polyurethane;
(6) Adding polyurethane elastomer, modified polyurethane, antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and lubricant polyethylene wax into an open mill for mixing in a mass ratio of 100:20:0.3:0.1, mixing at 170 ℃ for 10min, and vulcanizing after mixing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Example 2
(1) Uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane in a mass ratio of 1300:100:75, heating to react at 75 ℃ for 16 hours, filtering after the reaction is finished, washing by using toluene, and drying at 75 ℃ in vacuum for 7 hours to obtain chlorosilane modified molybdenum disulfide;
(2) Uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate in a mass ratio of 2000:142:100:96, reacting at 55 ℃ in an argon atmosphere for 42h, filtering after the reaction, washing with acetone, and vacuum drying at 65 ℃ for 9h to obtain hydroxybenzophenone modified molybdenum disulfide;
(3) Uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide in a mass ratio of 1050:100:52:3, reacting at 90 ℃ for 6 hours, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 70 ℃ for 18 hours to obtain acrylic acid grafted polyethylene;
(4) Uniformly mixing dichloromethane, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide in a mass ratio of 2600:40:100:2.8:55, reacting for 54 hours at 25 ℃, filtering after the reaction is finished, washing with dichloromethane, and drying for 10 hours at 55 ℃ to obtain modified molybdenum disulfide grafted polyethylene;
(5) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 3.5 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding modified molybdenum disulfide grafted polyethylene, wherein the mass ratio of the added isocyanate-terminated polyurethane prepolymer to the dimethylbenzene to the modified molybdenum disulfide grafted polyethylene is 100:700:11, heating and stirring in a nitrogen atmosphere, reacting for 1.5 hours at 120 ℃, adding absolute ethyl alcohol to terminate the reaction, filtering, washing with N, N-dimethylformamide, and drying for 14 hours at 70 ℃ to obtain modified polyurethane;
(6) Adding polyurethane elastomer, modified polyurethane, antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and lubricant polyethylene wax into an open mill for mixing in a mass ratio of 100:28:0.6:0.2, mixing at 175 ℃ for 9min, and vulcanizing after mixing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Example 3
(1) Uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane in a mass ratio of 1400:100:85, heating to react at 75 ℃ for 16 hours, filtering after the reaction is finished, washing by using toluene, and drying in vacuum at 75 ℃ for 7 hours to obtain chlorosilane modified molybdenum disulfide;
(2) Uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate in a mass ratio of 2200:152:100:104, reacting at 55 ℃ for 45 hours in an argon atmosphere, filtering after the reaction, washing with acetone, and vacuum drying at 65 ℃ for 9 hours to obtain hydroxybenzophenone modified molybdenum disulfide;
(3) Uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide in a mass ratio of 1250:100:62:4, reacting at 90 ℃ for 7 hours, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 70 ℃ for 20 hours to obtain acrylic acid grafted polyethylene;
(4) Uniformly mixing methylene dichloride, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide in a mass ratio of 2800:45:100:3.5:65, reacting at 30 ℃ for 54 hours, filtering after the reaction is finished, washing with methylene dichloride, and drying at 55 ℃ for 10 hours to obtain modified molybdenum disulfide grafted polyethylene;
(5) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 3.5 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding modified molybdenum disulfide grafted polyethylene, wherein the mass ratio of the added isocyanate-terminated polyurethane prepolymer to the dimethylbenzene to the modified molybdenum disulfide grafted polyethylene is 100:750:13, heating and stirring in a nitrogen atmosphere, reacting for 1.5 hours at 120 ℃, adding absolute ethyl alcohol to terminate the reaction, filtering, washing with N, N-dimethylformamide, and drying for 14 hours at 70 ℃ to obtain modified polyurethane;
(6) Adding polyurethane elastomer, modified polyurethane, antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and lubricant polyethylene wax in a mass ratio of 100:36:1:0.2 into an open mill for mixing, mixing for 9min at 175 ℃, and vulcanizing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Example 4
(1) Uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane in a mass ratio of 1500:100:95, heating to react at 80 ℃ for 15 hours, filtering after the reaction is finished, washing by using toluene, and vacuum drying at 80 ℃ for 6 hours to obtain chlorosilane modified molybdenum disulfide;
(2) Uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate in a mass ratio of 2400:160:100:108, reacting at 60 ℃ in an argon atmosphere for 36 hours, filtering after the reaction, washing with acetone, and vacuum drying at 70 ℃ for 8 hours to obtain hydroxybenzophenone modified molybdenum disulfide;
(3) Uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide in a mass ratio of 1400:100:70:5, reacting at 95 ℃ for 5 hours, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 80 ℃ for 12 hours to obtain acrylic acid grafted polyethylene;
(4) Uniformly mixing dichloromethane, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide in a mass ratio of 3000:50:100:4:72, reacting for 48 hours at 35 ℃, filtering after the reaction is finished, washing with dichloromethane, and drying for 8 hours at 60 ℃ to obtain modified molybdenum disulfide grafted polyethylene;
(5) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 4 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding modified molybdenum disulfide grafted polyethylene, wherein the mass ratio of the added isocyanate-terminated polyurethane prepolymer to the dimethylbenzene to the modified molybdenum disulfide grafted polyethylene is 100:800:15, heating and stirring in a nitrogen atmosphere, reacting for 1 hour at 125 ℃, adding absolute ethyl alcohol to terminate the reaction, filtering, washing with N, N-dimethylformamide, and drying for 12 hours at 75 ℃ to obtain modified polyurethane;
(6) Adding polyurethane elastomer, modified polyurethane, antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and lubricant polyethylene wax into an open mill for mixing in a mass ratio of 100:42:1.2:0.3, mixing at 180 ℃ for 8min, and vulcanizing after mixing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
Comparative example 1
(1) Uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide in a mass ratio of 1400:100:70:5, reacting at 95 ℃ for 5 hours, filtering after the reaction is finished, washing with absolute ethyl alcohol, and drying at 80 ℃ for 12 hours to obtain acrylic acid grafted polyethylene;
(2) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 4 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding acrylic acid grafted polyethylene, wherein the mass ratio of the added isocyanate-terminated polyurethane prepolymer to the dimethylbenzene to the acrylic acid grafted polyethylene is 100:800:15, heating and stirring in a nitrogen atmosphere, reacting for 1 hour at 125 ℃, adding absolute ethyl alcohol for blocking after the reaction is finished, filtering, washing with N, N-dimethylformamide, and drying for 12 hours at 75 ℃ to obtain modified polyurethane;
(3) Adding a polyurethane elastomer, modified polyurethane, molybdenum disulfide, 2', 4' -tetrahydroxybenzophenone, an antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and a lubricant polyethylene wax into an open mill according to the mass ratio of 100:40:0.8:1.2:1.2:1.2:0.3, mixing, and vulcanizing after mixing for 8min at 180 ℃ to obtain the polyurethane elastomer composite material.
Comparative example 2
(1) Uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane in a mass ratio of 1500:100:95, heating to react at 80 ℃ for 15 hours, filtering after the reaction is finished, washing by using toluene, and vacuum drying at 80 ℃ for 6 hours to obtain chlorosilane modified molybdenum disulfide;
(2) Uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate in a mass ratio of 2400:160:100:108, reacting at 60 ℃ in an argon atmosphere for 36 hours, filtering after the reaction, washing with acetone, and vacuum drying at 70 ℃ for 8 hours to obtain hydroxybenzophenone modified molybdenum disulfide;
(3) Mixing polycaprolactone diol and toluene-2, 4-diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 4 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, filtering, washing with N, N-dimethylformamide, and drying at 75 ℃ for 12 hours to obtain modified polyurethane;
(4) Adding a polyurethane elastomer, modified polyurethane, hydroxybenzophenone modified molybdenum disulfide, antioxidant tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and lubricant polyethylene wax into an open mill according to the mass ratio of 100:40:2:1.2:0.3, mixing at 180 ℃ for 8min, and vulcanizing to obtain the polyurethane elastomer composite material.
Molybdenum disulfide used in the embodiment of the invention is purchased from Henan Fuda chemical products limited company, and the product number is 20210415; 3-chloropropyl methyldimethoxy silane was purchased from Shanghai Meilin Biochemical technologies Co., ltd; 2,2', 4' -tetrahydroxybenzophenone is available from sigma aldrich (Shanghai) trade company under CAS number 131-55-5; ultra-high molecular weight polyethylene is purchased from Shenzhen New Material technology Co., ltd., specification: TL20-20, molecular weight: (250.+ -. 50). Times.10 4 Density of: 0.930-0.940; polycaprolactone diol was purchased from japanese cellophane chemical industry company, mn=1000; toluene diisocyanate was toluene-2, 4-diisocyanate, available from the company Semer Feier technology; the polyurethane elastomer is purchased from Baodingtai new material science and technology Co., ltd, and the model is E8185; the remaining reagents were all commercially available.
The polyurethane elastomer composites in examples 1-4 and comparative examples 1-2 were subjected to performance tests, specifically as follows:
(1) Abrasion resistance test: the abrasion rates of the polyurethane elastomer composites of examples 1 to 4 and comparative examples 1 to 2 were measured, corresponding to samples 1 to 6, respectively, the mass of the test sample was weighed before the test, the abrasion test was performed on an abrasion tester, the test sample after the abrasion test was weighed by rotating for 2000 rotations, and the abrasion rate γ= (m) 1 -m 2 )/m 1 ×100％，m 1 Representing the mass before abrasion test, m 2 The abrasion test quality is shown, and the test results are shown in Table 1:
TABLE 1
As can be seen from the test results in Table 1, the polyurethane elastomer composite materials corresponding to samples 1-4 have wear resistance, the molybdenum disulfide added into the samples is of a layered structure, has good self-lubricating property and load bearing capacity to load, is easy to generate layering to form a sliding surface in the friction process, can effectively improve the wear resistance of a matrix, has regular molecular chain arrangement, low surface energy, wear resistance and impact resistance, large hardness and small dynamic friction coefficient, can effectively improve the wear resistance of polyurethane, and the obtained polyurethane elastomer composite material has excellent wear resistance, the wear rate of the polyurethane elastomer composite material corresponding to sample 3 can be as low as 0.21%, the molybdenum disulfide in sample 5 is not modified, the molybdenum disulfide and 2,2', 4' -tetrahydroxybenzophenone are directly added, the dispersibility of the molybdenum disulfide is poor, the molybdenum disulfide is not uniformly dispersed in the matrix, the matrix has a certain influence on the performance, the wear rate is 1.90%, the acrylic acid grafted polyethylene is not added into sample 6, and the wear resistance is greatly reduced to 4.15%.
(2) And (3) ageing resistance test: the polyurethane elastomer composites of examples 1 to 4 and comparative examples 1 to 2 were subjected to tensile property test, corresponding to samples 1 to 6, respectively, and the samples were made into dumbbell-shaped bars by using a UHY-W type universal sample making machine, and were subjected to tensile strength test on a D00C type electronic tensile tester, the test standard being GB13022-91 plastic-film tensile property test method, the tensile speed being 200mm/min, and the samples were respectively placed in an ultraviolet aging test box to be subjected to aging treatment for 10 days, the ultraviolet aging using a xenon lamp, the power being 35W, and the samples were taken out after the treatment was completed, and subjected to the same tensile strength test, the test results being shown in table 2:
TABLE 2
As can be seen from the test results in Table 2, the corresponding polyurethane elastomer composite materials of samples 1-4 have anti-aging properties, 2', 4' -tetrahydroxybenzophenone is an ultraviolet absorbent with excellent properties, can absorb high-energy ultraviolet light, forms internal hydrogen bonds between carbonyl groups in molecules and hydrogen bonds in molecules to form chelate rings, after absorbing ultraviolet light energy, generates thermal vibration of the molecules, breaks the internal hydrogen bonds, opens the chelate rings, performs corresponding energy conversion, converts the ultraviolet light energy into harmless low-radiation heat energy to release the energy, improves the aging resistance of a matrix, and meanwhile, improves the durability of the ultraviolet absorbent by a chemical grafting method, so that the aging resistance time of the matrix is longer, the service life is prolonged, the modified polyurethane and the polyurethane elastomer have excellent compatibility and can be uniformly mixed, and the obtained polyurethane elastomer composite material has excellent aging resistance.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A preparation method of a wear-resistant and aging-resistant modified polyurethane elastomer composite material is characterized by comprising the following steps of: the method comprises the following steps:
uniformly mixing toluene, molybdenum disulfide and 3-chloropropyl methyldimethoxy silane, heating to react, filtering, washing and drying after the reaction is finished to obtain chlorosilane modified molybdenum disulfide;
uniformly mixing N, N-dimethylformamide, 2', 4' -tetrahydroxybenzophenone, chlorosilane modified molybdenum disulfide and potassium carbonate, reacting in an argon atmosphere, filtering, washing and drying after the reaction is finished to obtain hydroxybenzophenone modified molybdenum disulfide;
uniformly mixing dimethylbenzene, ultra-high molecular weight polyethylene, acrylic acid and initiator dibenzoyl peroxide, reacting, filtering, washing and drying after the reaction is finished to obtain acrylic acid grafted polyethylene;
uniformly mixing dichloromethane, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide, reacting, filtering, washing and drying after the reaction is finished to obtain modified molybdenum disulfide grafted polyethylene;
mixing polycaprolactone diol and toluene diisocyanate according to a molar ratio of 2:1, heating and stirring, reacting for 3-4 hours at 85 ℃ to obtain an isocyanate-terminated polyurethane prepolymer, adding the isocyanate-terminated polyurethane prepolymer into dimethylbenzene, then adding modified molybdenum disulfide grafted polyethylene, heating and stirring in a nitrogen atmosphere, reacting, adding absolute ethyl alcohol for blocking after the reaction is finished, filtering, washing and drying to obtain modified polyurethane;
and (6) adding the polyurethane elastomer, the modified polyurethane, the antioxidant and the lubricant into an open mill for mixing, and vulcanizing after mixing to obtain the wear-resistant and ageing-resistant modified polyurethane elastomer composite material.
2. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: in the step (1), the mass ratio of toluene, molybdenum disulfide and 3-chloropropyl methyl dimethoxy silane is 1200-1500:100:65-95, the reaction temperature is 70-80 ℃, and the reaction time is 15-18h.
3. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: in the step (2), the mass ratio of the N, N-dimethylformamide, the 2,2', 4' -tetrahydroxybenzophenone, the chlorosilane modified molybdenum disulfide and the potassium carbonate is 1800-2400:135-160:100:90-108, the reaction temperature is 50-60 ℃, and the reaction time is 36-48h.
4. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: in the step (3), the mass ratio of the dimethylbenzene to the ultra-high molecular weight polyethylene to the acrylic acid to the initiator dibenzoyl peroxide is 900-1400:100:42-70:2-5, the reaction temperature is 85-95 ℃, and the reaction time is 5-8h.
5. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: in the step (4), the mass ratio of dichloromethane, hydroxybenzophenone modified molybdenum disulfide, acrylic acid grafted polyethylene, 4-dimethylaminopyridine and N, N' -dicyclohexylcarbodiimide is 2400-3000:35-50:100:2-4:45-72, the reaction temperature is 20-35 ℃, and the reaction time is 48-60h.
6. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: the mass ratio of the isocyanate-terminated polyurethane prepolymer to the xylene to the modified molybdenum disulfide grafted polyethylene in the step (5) is 100:650-800:9-15, the reaction temperature is 115-125 ℃, and the reaction time is 1-2h.
7. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: in the step (6), the mass ratio of the polyurethane elastomer to the modified polyurethane to the antioxidant to the lubricant is 100:20-42:0.3-1.2:0.1-0.3, the mixing temperature is 170-180 ℃, and the mixing time is 8-10min.
8. The method for preparing the wear-resistant and aging-resistant modified polyurethane elastomer composite according to claim 1, which is characterized in that: the antioxidant in the step (6) comprises one of tris (2, 4-di-tert-butylphenyl) phosphite ester and pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], and the lubricant comprises one of polyethylene wax and calcium stearate.
9. A wear-resistant and aging-resistant modified polyurethane elastomer composite prepared by the method for preparing a wear-resistant and aging-resistant modified polyurethane elastomer composite according to any one of claims 1 to 8.
10. Use of the wear-resistant and ageing-resistant modified polyurethane elastomer composite according to claim 9 in a sealing ring.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2330576A1 (en) * | 1972-06-16 | 1974-01-31 | Peugeot | POLYURETHANE ELASTOMER COMPOUND, IN PARTICULAR FOR THE PRODUCTION OF RESILIENT MOLDS |
| WO2007131312A2 (en) * | 2006-05-16 | 2007-11-22 | Petropasy Tecnologia Em Poliuretanos Ltda. | Abrasion-resistant thermoset polyurethane elastomer formulation, process and article |
| CN102643529A (en) * | 2012-04-27 | 2012-08-22 | 中国科学院长春应用化学研究所 | Polymer composite for bearing and preparation method thereof |
| CN103007353A (en) * | 2012-12-24 | 2013-04-03 | 南京理工大学 | Ultrahigh-molecular weight polyethylene composite material for artificial joint and preparation method of ultrahigh-molecular weight polyethylene composite material |
| CN105175982A (en) * | 2015-10-19 | 2015-12-23 | 云南云天化股份有限公司 | POM (Polyoxymethylene) resin and preparation method thereof |
| CN107163215A (en) * | 2017-06-22 | 2017-09-15 | 广东元星工业新材料有限公司 | High rigidity self-lubricating polyurethane elastomer and preparation method thereof |
| CN107725601A (en) * | 2017-07-10 | 2018-02-23 | 北华大学 | A kind of preparation method of double-decker polyurethane composite bearing |
| CN109081979A (en) * | 2018-06-22 | 2018-12-25 | 上海化工研究院有限公司 | A kind of preparation method of ultrahigh molecular weight polyethylene nanometer composite material |
| CN109467914A (en) * | 2018-12-07 | 2019-03-15 | 黄山华塑新材料科技有限公司 | A kind of wear-resisting type Wood plastic composite and preparation method thereof |
| CN111825798A (en) * | 2020-07-27 | 2020-10-27 | 东来涂料技术（上海）股份有限公司 | Preparation method of high-molecular ultraviolet absorber |
| KR20210038203A (en) * | 2019-09-30 | 2021-04-07 | 코오롱플라스틱 주식회사 | Polyoxymethylene resins composition and molding procuced from the same |
| WO2022227559A1 (en) * | 2021-11-30 | 2022-11-03 | 江苏徐工工程机械研究院有限公司 | High-strength self-lubricating polyurethane piston sealing body, and preparation method therefor |
| CN116082837A (en) * | 2023-03-07 | 2023-05-09 | 无锡惠源高级润滑油有限公司 | Preparation method of lubricating resin composition |
-
2023
- 2023-05-31 CN CN202310630843.9A patent/CN116606542A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2330576A1 (en) * | 1972-06-16 | 1974-01-31 | Peugeot | POLYURETHANE ELASTOMER COMPOUND, IN PARTICULAR FOR THE PRODUCTION OF RESILIENT MOLDS |
| WO2007131312A2 (en) * | 2006-05-16 | 2007-11-22 | Petropasy Tecnologia Em Poliuretanos Ltda. | Abrasion-resistant thermoset polyurethane elastomer formulation, process and article |
| CN102643529A (en) * | 2012-04-27 | 2012-08-22 | 中国科学院长春应用化学研究所 | Polymer composite for bearing and preparation method thereof |
| CN103007353A (en) * | 2012-12-24 | 2013-04-03 | 南京理工大学 | Ultrahigh-molecular weight polyethylene composite material for artificial joint and preparation method of ultrahigh-molecular weight polyethylene composite material |
| CN105175982A (en) * | 2015-10-19 | 2015-12-23 | 云南云天化股份有限公司 | POM (Polyoxymethylene) resin and preparation method thereof |
| CN107163215A (en) * | 2017-06-22 | 2017-09-15 | 广东元星工业新材料有限公司 | High rigidity self-lubricating polyurethane elastomer and preparation method thereof |
| CN107725601A (en) * | 2017-07-10 | 2018-02-23 | 北华大学 | A kind of preparation method of double-decker polyurethane composite bearing |
| CN109081979A (en) * | 2018-06-22 | 2018-12-25 | 上海化工研究院有限公司 | A kind of preparation method of ultrahigh molecular weight polyethylene nanometer composite material |
| CN109467914A (en) * | 2018-12-07 | 2019-03-15 | 黄山华塑新材料科技有限公司 | A kind of wear-resisting type Wood plastic composite and preparation method thereof |
| KR20210038203A (en) * | 2019-09-30 | 2021-04-07 | 코오롱플라스틱 주식회사 | Polyoxymethylene resins composition and molding procuced from the same |
| CN111825798A (en) * | 2020-07-27 | 2020-10-27 | 东来涂料技术（上海）股份有限公司 | Preparation method of high-molecular ultraviolet absorber |
| WO2022227559A1 (en) * | 2021-11-30 | 2022-11-03 | 江苏徐工工程机械研究院有限公司 | High-strength self-lubricating polyurethane piston sealing body, and preparation method therefor |
| CN116082837A (en) * | 2023-03-07 | 2023-05-09 | 无锡惠源高级润滑油有限公司 | Preparation method of lubricating resin composition |
Non-Patent Citations (2)
| Title |
|---|
| SHIFAN LI, ET AL.: "Friction-reducing and vibration-absorbing performances on a novel thermoplastic bearing material reinforced by nano-WS2 and UHMWPE", 《TRIBOLOGY INTERNATIONAL》, vol. 176, pages 107893 * |
| 李娇 等: "MPU/UHMWPE共混体系的摩擦学性能及拉伸性能", 《机械工程材料》, vol. 39, no. 4, pages 35 - 38 * |
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