CN108395518A - Rubber tire guide rail electric car guide rail is fixed and sealed insulation modified polyurethane elastomer material and preparation method thereof - Google Patents
Rubber tire guide rail electric car guide rail is fixed and sealed insulation modified polyurethane elastomer material and preparation method thereof Download PDFInfo
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- CN108395518A CN108395518A CN201810341133.3A CN201810341133A CN108395518A CN 108395518 A CN108395518 A CN 108395518A CN 201810341133 A CN201810341133 A CN 201810341133A CN 108395518 A CN108395518 A CN 108395518A
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- polyurethane elastomer
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 229920003225 polyurethane elastomer Polymers 0.000 title claims abstract description 53
- 238000009413 insulation Methods 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 229920001971 elastomer Polymers 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 36
- 229920005862 polyol Polymers 0.000 claims description 36
- 150000003077 polyols Chemical class 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 18
- -1 polyoxypropylene Polymers 0.000 claims description 18
- 229920001451 polypropylene glycol Polymers 0.000 claims description 15
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000004132 cross linking Methods 0.000 claims description 14
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 14
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 12
- 125000000524 functional group Chemical group 0.000 claims description 10
- 150000002009 diols Chemical class 0.000 claims description 9
- 239000004970 Chain extender Substances 0.000 claims description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 8
- 125000005442 diisocyanate group Chemical group 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 239000012948 isocyanate Substances 0.000 claims description 8
- 150000002513 isocyanates Chemical class 0.000 claims description 8
- 229920005906 polyester polyol Polymers 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- 229920001519 homopolymer Polymers 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 235000011037 adipic acid Nutrition 0.000 claims description 4
- 239000001361 adipic acid Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920001610 polycaprolactone Polymers 0.000 claims description 4
- 239000004632 polycaprolactone Substances 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920001228 polyisocyanate Polymers 0.000 claims description 4
- 239000005056 polyisocyanate Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 2
- LFSYUSUFCBOHGU-UHFFFAOYSA-N 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=CC=C1N=C=O LFSYUSUFCBOHGU-UHFFFAOYSA-N 0.000 claims description 2
- 150000004984 aromatic diamines Chemical class 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims 2
- 125000006353 oxyethylene group Chemical group 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 239000004593 Epoxy Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000003712 anti-aging effect Effects 0.000 abstract 1
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 12
- AOFIWCXMXPVSAZ-UHFFFAOYSA-N 4-methyl-2,6-bis(methylsulfanyl)benzene-1,3-diamine Chemical compound CSC1=CC(C)=C(N)C(SC)=C1N AOFIWCXMXPVSAZ-UHFFFAOYSA-N 0.000 description 8
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 8
- 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 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005606 polypropylene copolymer Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002861 polymer material 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
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
-
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
It is fixed the present invention provides a kind of rubber tire guide rail electric car guide rail and sealed insulation modified polyurethane elastomer material and preparation method thereof, belongs to the production method field of polyurethane elastomer material.This rubber tire guide rail electric car guide rail fix and sealed insulation modified polyurethane elastomer material and production method made from rubber tire guide rail electric car guide rail fix and sealed insulation with modified polyurethane elastomer material be fully able to adapt to site environment demand, also its anti-aging property have been reacted from side good simultaneously, long lifespan, and it is not breakdown that its resistance to pressure energy of insulating reaches 10000V, volume resistivity >=1010Ω cm, improve the class of insulation, and since it is high insulation flexible resin, the more former epoxy material flexibility used is more preferable, and insulation performance is more preferable.
Description
Technical Field
The invention relates to the field of a preparation method of a polyurethane elastomer material, in particular to a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail and a preparation method thereof.
Background
The guide rail in the guide rail electric car is the formula structure of buryying, therefore the guide rail need adopt fastener and fixed mode of resin to fix, wherein because need consider the track circuit to the influence of other parts of track, consequently the resin material that fixed guide rail was used need have good insulating properties, has good sealing performance simultaneously and makes resin material and the glued interface of rail not appear damaging when raining and other reasons cause ponding, causes the problem of insulating inefficacy after the water erosion.
Disclosure of Invention
The invention provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, aiming at solving the problems of the manufacturing method of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramcar guide rail in the prior art;
the invention also provides a modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramcar guide rail, and aims to solve the problems of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramcar guide rail in the prior art.
The invention is realized by the following steps:
a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail comprises the following steps:
mixing 100 parts by weight of a first component and 10-50 parts by weight of a second component at a temperature of 60-120 ℃ to obtain a first mixture;
crosslinking the first mixture for 24-168h at normal temperature; wherein,
the first component is at least one of a monomer of diisocyanate, a derivative of diisocyanate, a monomer of polyisocyanate and a derivative of polyisocyanate; or,
the first component is at least one of prepolymer prepared by reacting a hydroxyl-terminated compound with isocyanate and semi-prepolymer prepared by reacting the hydroxyl-terminated compound with isocyanate;
the second component is a mixture of 100 parts by weight of chain extender and 10-100 parts by weight of weather-resistant protective material; wherein,
the chain extender is at least one of hydroxyl-terminated polymer containing active hydrogen and amino-terminated polymer containing active hydrogen, or the chain extender is one of polyalcohol and polyamine;
the weather-resistant protective material is at least one of an ultraviolet absorbent and a heat aging resistant agent.
In a preferred embodiment of the invention, the mixing ratio of the first component to the second component is 10: 1-3 by weight, and the mixing temperature of the first component and the second component is 80-110 ℃.
In a preferred embodiment of the present invention, the first component is a mixture of 10 parts by weight of 4,4 '-diphenylmethane diisocyanate and 2-11 parts by weight of 2, 4' -diphenylmethane diisocyanate.
In a preferred embodiment of the present invention, the first component is at least one of a prepolymer prepared by reacting a hydroxyl-terminated compound with a diisocyanate and a semi-prepolymer prepared by reacting a hydroxyl-terminated compound with a diisocyanate; wherein,
the hydroxyl-terminated compound is polyether polyol having an average functional group number of 1.8 to 3.0 and an average molecular weight (Mn) of 600 to 3000 or polyester polyol having an average functional group number of 1.8 to 3.0 and an average molecular weight (Mn) of 600 to 3000.
In a preferred embodiment of the present invention, the polyether polyol is at least one of a polyoxypropylene polyol, a polyoxyethylene polyol, a propylene oxide homopolymer, an ethylene oxide homopolymer, a copolymer of propylene oxide and ethylene oxide, and a polytetrahydrofuran polyol;
the polyester polyol is at least one of adipic acid polyester diol, polycaprolactone polyol and polycarbonate diol.
In a preferred embodiment of the present invention, the content of the isocyanate group in the prepolymer prepared by reacting the hydroxyl-terminated compound with the isocyanate is 3 to 12 wt%.
In a preferred embodiment of the present invention, the average number of functional groups of the prepolymer prepared by reacting the hydroxyl-terminated compound with the isocyanate is 2.0 to 3.0.
In a preferred embodiment of the present invention, the active hydrogen-containing hydroxyl-terminated polymer is a polyether polyol having an average number of functional groups of 2.0 to 3.0 and a number average molecular weight (Mn) of 500 to 2000, and the active hydrogen-containing amino-terminated polymer is a polyester polyol having an average number of functional groups of 2.0 to 3.0 and a number average molecular weight (Mn) of 500 to 2000.
In a preferred embodiment of the present invention, the polyether polyol is at least one of a polyoxypropylene polyol, a polyoxyethylene polyol, a propylene oxide homopolymer, an ethylene oxide homopolymer, a copolymer of propylene oxide and ethylene oxide, and a polytetrahydrofuran polyol;
the polyester polyol is at least one of adipic acid polyester diol, polycaprolactone polyol and polycarbonate diol.
In a preferred embodiment of the present invention, the chain extender is at least one of aliphatic diamine and its substitute, cycloaliphatic diamine and its substitute, aromatic diamine and its substitute, cycloaliphatic diol and polyol and aliphatic diol and polyol.
The invention has the beneficial effects that:
the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred trolley car guide rail is obtained by the design, the electrical properties of the modified polyurethane elastomer material are excellent, and the volume resistivity of the modified polyurethane elastomer material is 1010Omega cm, far higher than 2x10 specified in TB/T2927-1998 Rail insulator made of Polymer materials7Omega cm; the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramcar guide rail can keep excellent electrical performance under high and low temperature conditions, and can ensure 10000V of insulation and pressure resistance under the conditions of high temperature of 90 ℃ and low temperature of 50 ℃ below zero; in thatThe modified polyurethane elastomer material for fixing and sealing the rubber-tyred tramway rail can maintain good electrical performance under the condition of high humidity, and after low-temperature-50 ℃ and high-temperature-90 ℃ tests, the material has no defects of deformation, stickiness, cracking and the like, and the insulation and voltage resistance can meet the relevant requirements; after a hot air aging test at 80 ℃ for 72 hours, the tensile strength and the elongation at break of the alloy are not greatly changed; the low-temperature brittleness of the material is tested in the environment of 50 ℃ below zero, and the sample is not embrittled and damaged; through the three severe tests, the modified polyurethane elastomer material for fixing, sealing and insulating the rubber-tyred rail tramcar guide rail can completely meet the requirements of the field environment, and simultaneously reflects the characteristics of good ageing resistance, long service life, high insulation withstand voltage up to 10000V and no breakdown, and the volume resistivity is more than or equal to 1010Omega cm, the insulating grade is improved, and the flexible epoxy resin is high-insulating flexible resin, so that the flexible epoxy resin is better in flexibility and better in insulating property than the original epoxy material.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example one
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 10 parts by weight of the second component at a temperature of 60 ℃ to obtain a first mixture;
crosslinking the first mixture for 24 hours at normal temperature; wherein,
the first component is prepolymer with 4% of isocyanate group content prepared from mixture of diphenylmethane diisocyanate, polytetramethylene ether glycol and propylene oxide polyalcohol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 5 parts of plasticizer, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 0.5 part of ultraviolet absorbent.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 1,
TABLE 1
Example two
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 20 parts by weight of the second component at a temperature of 80 ℃ to obtain a first mixture;
crosslinking the first mixture for 50h at normal temperature; wherein,
the first component is prepolymer with 4% of isocyanate group content prepared from mixture of diphenylmethane diisocyanate, polytetramethylene ether glycol and propylene oxide polyalcohol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 5 parts of plasticizer, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 0.5 part of ultraviolet absorbent.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 2,
TABLE 2
EXAMPLE III
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 30 parts by weight of the second component at a temperature of 110 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 110 h; wherein,
the first component is prepolymer with 4% of isocyanate group content prepared from mixture of diphenylmethane diisocyanate, polytetramethylene ether glycol and propylene oxide polyalcohol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 5 parts of plasticizer, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 0.5 part of ultraviolet absorbent.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 3,
TABLE 3
Example four
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 50 parts by weight of the second component at a temperature of 120 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 168 h; wherein,
the first component is prepolymer with 4% of isocyanate group content prepared from mixture of diphenylmethane diisocyanate, polytetramethylene ether glycol and propylene oxide polyalcohol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 5 parts of plasticizer, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 0.5 part of ultraviolet absorbent.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 4,
TABLE 4
EXAMPLE five
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 10 parts by weight of the second component at a temperature of 60 ℃ to obtain a first mixture;
crosslinking the first mixture for 24 hours at normal temperature; wherein,
the first component is a prepolymer with 6 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate, polyoxypropylene polyol and polytetramethylene ether glycol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 7 parts of dimethylthiotoluenediamine.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 5,
TABLE 5
EXAMPLE six
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 20 parts by weight of the second component at a temperature of 80 ℃ to obtain a first mixture;
crosslinking the first mixture for 50h at normal temperature; wherein,
the first component is a prepolymer with 6 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate, polyoxypropylene polyol and polytetramethylene ether glycol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 7 parts of dimethylthiotoluenediamine.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail made in this example are shown in table 6,
TABLE 6
EXAMPLE seven
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 30 parts by weight of the second component at a temperature of 110 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 110 h; wherein,
the first component is a prepolymer with 6 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate, polyoxypropylene polyol and polytetramethylene ether glycol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 7 parts of dimethylthiotoluenediamine.
The values of the properties of the modified polyurethane elastomer material for fixing and sealing insulation of the guide rail of the rubber-tyred tram manufactured by the present example are shown in table 7,
TABLE 7
Example eight
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 50 parts by weight of the second component at a temperature of 120 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 168 h; wherein,
the first component is a prepolymer with 6 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate, polyoxypropylene polyol and polytetramethylene ether glycol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 7 parts of dimethylthiotoluenediamine.
The performance values of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail prepared by the present example are shown in table 8,
TABLE 8
Example nine
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 10 parts by weight of the second component at a temperature of 60 ℃ to obtain a first mixture;
crosslinking the first mixture for 24 hours at normal temperature; wherein,
the first component is a prepolymer with 9 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate and polyoxypropylene polyol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 5 parts of dimethylthiotoluenediamine.
The values of the properties of the modified polyurethane elastomer material for fixing and sealing insulation of the guide rail of the rubber-tyred tram manufactured by the present example are shown in table 9,
TABLE 9
Example ten
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 20 parts by weight of the second component at a temperature of 80 ℃ to obtain a first mixture;
crosslinking the first mixture for 50h at normal temperature; wherein,
the first component is a prepolymer with 9 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate and polyoxypropylene polyol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 5 parts of dimethylthiotoluenediamine.
The values of the properties of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail made in this example are shown in table 10,
watch 10
EXAMPLE eleven
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 30 parts by weight of the second component at a temperature of 110 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 110 h; wherein,
the first component is a prepolymer with 9 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate and polyoxypropylene polyol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 5 parts of dimethylthiotoluenediamine.
The values of the properties of the modified polyurethane elastomer material for fixing and sealing insulation of the guide rail of the rubber-tyred tram manufactured by the present example are shown in table 11,
TABLE 11
Example twelve
The embodiment provides a method for manufacturing a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tramcar guide rail, which comprises the following steps:
mixing 100 parts by weight of the first component and 50 parts by weight of the second component at a temperature of 120 ℃ to obtain a first mixture;
crosslinking the first mixture at normal temperature for 168 h; wherein,
the first component is a prepolymer with 9 percent of isocyanate group content prepared from diphenylmethane diisocyanate, toluene diisocyanate and polyoxypropylene polyol.
The second component is formed by mixing 11 parts of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane and 5 parts of dimethylthiotoluenediamine.
The values of the properties of the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail made in this example are shown in table 12,
TABLE 12
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A manufacturing method of a modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred rail trolley, which is characterized by comprising the following steps:
mixing 100 parts by weight of a first component and 10-50 parts by weight of a second component at a temperature of 60-120 ℃ to obtain a first mixture;
crosslinking the first mixture for 24-168h at normal temperature; wherein,
the first component is at least one of a monomer of diisocyanate, a derivative of diisocyanate, a monomer of polyisocyanate and a derivative of polyisocyanate; or,
the first component is at least one of prepolymer prepared by reacting a hydroxyl-terminated compound with isocyanate and semi-prepolymer prepared by reacting the hydroxyl-terminated compound with isocyanate;
the second component is a mixture of 100 parts by weight of chain extender and 10-100 parts by weight of weather-resistant protective material; wherein,
the chain extender is at least one of hydroxyl-terminated polymer containing active hydrogen and amino-terminated polymer containing active hydrogen, or the chain extender is one of polyalcohol and polyamine;
the weather-resistant protective material is at least one of an ultraviolet absorbent and a heat aging resistant agent.
2. The manufacturing method of the modified polyurethane elastomer material for fixing, sealing and insulating the guide rail of the rubber-tyred tram according to claim 1, wherein the mixing ratio of the first component to the second component is 10:1 to 3, and the mixing temperature of the first component and the second component is 80 to 110 ℃.
3. The method for manufacturing the modified polyurethane elastomer material for fixing, sealing and insulating the guide rail of the rubber-tyred tram according to claim 1, wherein the first component is a mixture of 10 parts by weight of 4,4 '-diphenylmethane diisocyanate and 2 to 11 parts by weight of 2, 4' -diphenylmethane diisocyanate.
4. The method for producing the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tram rail according to claim 1, wherein the first component is at least one of a prepolymer prepared by reacting a hydroxyl-terminated compound with diisocyanate and a semi-prepolymer prepared by reacting a hydroxyl-terminated compound with diisocyanate; wherein,
the hydroxyl-terminated compound is polyether polyol having an average functional group number of 1.8 to 3.0 and an average molecular weight (Mn) of 600 to 3000 or polyester polyol having an average functional group number of 1.8 to 3.0 and an average molecular weight (Mn) of 600 to 3000.
5. The method for manufacturing the modified polyurethane elastomer material for fixing, sealing and insulating the guide rail of the rubber-tyred trolley car according to claim 4, wherein the polyether polyol is at least one of polyoxypropylene polyol, polyoxyethylene polyol, oxypropylene homopolymer, oxyethylene homopolymer, oxypropylene-oxyethylene copolymer, and polytetrahydrofuran polyol;
the polyester polyol is at least one of adipic acid polyester diol, polycaprolactone polyol and polycarbonate diol.
6. The method for producing the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tram rail according to claim 1, wherein the content of isocyanate groups in the prepolymer obtained by reacting the hydroxyl-terminated compound with the isocyanate is 3 to 12 wt%.
7. The method for producing the modified polyurethane elastomer material for fixing and sealing insulation of a rubber-tyred tram rail according to claim 1, wherein the average number of functional groups of the prepolymer obtained by reacting the hydroxyl-terminated compound with the isocyanate is 2.0 to 3.0.
8. The method for producing the modified polyurethane elastomer material for fixing, sealing and insulating the guide rail of the rubber-tyred tram according to claim 1, wherein the active hydrogen-containing hydroxyl-terminated polymer is a polyether polyol having an average functional group number of 2.0 to 3.0 and a number average molecular weight (Mn) of 500 to 2000, and the active hydrogen-containing amino-terminated polymer is a polyester polyol having an average functional group number of 2.0 to 3.0 and a number average molecular weight (Mn) of 500 to 2000;
the polyether polyol is at least one of polypropylene oxide polyol, polyethylene oxide polyol, propylene oxide homopolymer, ethylene oxide homopolymer, propylene oxide-ethylene oxide copolymer and polytetrahydrofuran polyol;
the polyester polyol is at least one of adipic acid polyester diol, polycaprolactone polyol and polycarbonate diol.
9. The method for manufacturing the modified polyurethane elastomer material for fixing and sealing insulation of the rubber-tyred tramway rail according to claim 1, wherein the chain extender is at least one of aliphatic diamine and a substitute thereof, alicyclic diamine and a substitute thereof, aromatic diamine and a substitute thereof, alicyclic diol and polyol, and aliphatic diol and polyol.
10. A modified polyurethane elastomer material for fixing, sealing and insulating a rail of a rubber-tyred tram, characterized by being produced by the method according to any one of claims 1 to 9.
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| CN110003428A (en) * | 2019-04-01 | 2019-07-12 | 成都瑞吉龙科技有限责任公司 | A kind of thermosetting property interlinkage formula elastomer railway rail pad and preparation method thereof |
| CN110563909A (en) * | 2019-09-03 | 2019-12-13 | 四川睿铁科技有限责任公司 | restrictive pouring modified polyurethane resin for guide rail of guide rail electric car and preparation method thereof |
| CN116217880A (en) * | 2023-05-10 | 2023-06-06 | 山东一诺威聚氨酯股份有限公司 | Polyurethane rubber for ceramic piston sealing and preparation method thereof |
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| CN110003428A (en) * | 2019-04-01 | 2019-07-12 | 成都瑞吉龙科技有限责任公司 | A kind of thermosetting property interlinkage formula elastomer railway rail pad and preparation method thereof |
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