CN103102706B - Polyurethane high-temperature-resistant anti-rutting modifier for road asphalt - Google Patents
Polyurethane high-temperature-resistant anti-rutting modifier for road asphalt Download PDFInfo
- Publication number
- CN103102706B CN103102706B CN201310036041.1A CN201310036041A CN103102706B CN 103102706 B CN103102706 B CN 103102706B CN 201310036041 A CN201310036041 A CN 201310036041A CN 103102706 B CN103102706 B CN 103102706B
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- CN
- China
- Prior art keywords
- polyurethane
- polyol
- modifier
- high temperature
- temperature resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010426 asphalt Substances 0.000 title claims abstract description 87
- 239000003607 modifier Substances 0.000 title claims abstract description 48
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 27
- 239000004814 polyurethane Substances 0.000 title claims abstract description 21
- -1 polymethylene isocyanate Polymers 0.000 claims abstract description 64
- 239000004970 Chain extender Substances 0.000 claims abstract description 44
- 229920005862 polyol Polymers 0.000 claims abstract description 41
- 239000011159 matrix material Substances 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 25
- 229920000642 polymer Polymers 0.000 claims abstract description 24
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- 229920000768 polyamine Polymers 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
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- 239000003795 chemical substances by application Substances 0.000 claims description 90
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 48
- 150000003384 small molecules Chemical class 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 29
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- 239000005056 polyisocyanate Substances 0.000 claims description 20
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- 239000012948 isocyanate Substances 0.000 claims description 19
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 16
- 239000003112 inhibitor Substances 0.000 claims description 15
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
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- 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 8
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- 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 8
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 7
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 6
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- 125000003118 aryl group Chemical group 0.000 claims description 4
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 4
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- RUQNFHWKALNWAE-UHFFFAOYSA-N 3-(3-hydroxyphenoxy)propane-1,1-diol Chemical compound OC(CCOC1=CC(O)=CC=C1)O RUQNFHWKALNWAE-UHFFFAOYSA-N 0.000 claims description 2
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 claims description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
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- PDXRQENMIVHKPI-UHFFFAOYSA-N cyclohexane-1,1-diol Chemical compound OC1(O)CCCCC1 PDXRQENMIVHKPI-UHFFFAOYSA-N 0.000 claims description 2
- 229920001583 poly(oxyethylated polyols) Polymers 0.000 claims description 2
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- 150000001993 dienes Chemical class 0.000 abstract description 2
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 11
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 9
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- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 7
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- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 4
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- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
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Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a polyurethane high-temperature-resistant anti-rutting modifier for road asphalt. The modifier comprises the following components in parts by the total weight of the modifier: 25-65 parts of one or two or more of diisocyanate, polyaryl polymethylene isocyanate and diisocyanate derivatives, 15-60 parts of one or two or more of polymer polyol and polymer polyamine, 2-15 parts of one or two or more of micromolecular polyol chain extender, micromolecular polyamine chain extender and micromolecular polyatomic acid chain extender, 0.01-3 parts of organic polyurethane catalyst, and 0-45 parts of poly-alkadiene polymer compound with a number-average molecular weight of 500-50000. The modifier can greatly improve the high-temperature resistance and anti-rutting properties of matrix asphalt and modified asphalt; and prepared modified asphalt is balanced in high and low-temperature performances, good in compatibility with matrix asphalt, and stored stably.
Description
Technical field
Present method relates to a kind of road bitumen properties-correcting agent, particularly a kind of road bitumen polyurethane-type high temperature tracking-resisting modifier.
Background technology
Asphalt pavement rut is one of primary highway disease of China, it is under bituminous pavement car load repeated action, runway produces larger permanent deformation at wheelpath place, and along the pavement damage phenomenon of the similar groove of a kind of shape of vehicle heading formation on bituminous pavement.Rut generally occurs in temperature higher season, oil mat vehicle repeatedly roll lower generation tension set and VISCOUS FLOW is formed gradually.It normally with while oil mat compression subsidence, occurs that side direction is swelled.The appearance of rut, has had a strong impact on work-ing life and the service quality on road surface, has brought much harm to pavement usage person: as affected the planeness on road surface, reduces the security of road-ability and goods; Pitch reduced thickness in rut groove, reduces pavement structure bulk strength, thus is easy to bring out various problem, as check crack and Water Damage etc.; Rainy day Pavement surface drainage is not smooth, reduces the anti-slide performance on road surface, affects the safety of high speed traveling; Causing vehicle out of control when overtaking other vehicles or change direction, affecting the stability etc. of trailer reversing.
Anti-rut agent is a kind of multi-component Chemicals, adds shear strength or the non-deformability that significantly can improve bituminous pavement in pitch or its compound, thus effectively stops or delay the generation of rut.Now widely used anti-rut agent is mainly organic and inorganic two large classes.Inorganic modifier mainly comprises carbon black, diatomite etc., and organic modifiers is Plastic, rubber-like and fiber-like mainly, as polyethylene (PE), vinyl-vinyl acetate copolymer (EVA), styrene-butadiene rubber(SBR) (SBR) etc.Conventional anti-rut agent product has PRPLAST, the DUROFLEX of Germany and the rut king etc. of Shenzhen Hai Chuan of France.This several prods is all take polyethylene as main raw material, and can significantly improve rutting-resistant performance of mixture, easy to use, but selling price is expensive, therefore it is applied and is restricted.Product high temperature elastomeric is better in addition, but low-temperature performance is poor, and fragility is large, easily embrittlement and cracking, and the ageing resistance of product and antistrip performance are also poor.
Chinese patent CN 101063000A, CN 101165102A, CN 101857393A, CN 101906224A disclose the pitch physically modified agent of a class traffic anti-track, such properties-correcting agent contain in polyolefine and thermoplastic ethylene's base aromatic hydrocarbon-conjugated diene block copolymer (SBS class material), lignocellulose, rubber powder and oxidation inhibitor one or both.Such properties-correcting agent can improve the rutting resistance of asphalt, but the flexural strength of compound improves only about 3Mpa and stiffness modulus also only improves about 15%, and namely properties-correcting agent improves limited to compound low-temperature performance.
Chinese patent CN 102181134A discloses a kind of anti-rut agent, bituminous material and preparation method, and anti-rut agent is composited primarily of urethane, polyethylene terephthalate, polymethacrylonitrile and calcium carbonate etc.Wherein urethane is the segmented copolymer of diphenylmethanediisocyanate and propylene glycol polycondensation.This anti-rut agent is adopted to make the dynamic stability of the high temperature Rut resistance of compound reach 10000 times/more than mm, but properties-correcting agent addition accounts for 5% ~ 15% of pitch gross weight, 5 DEG C of ductilities of pitch only can reach 2 ~ 5cm, show that this properties-correcting agent improves limited to the low-temperature performance of pitch.
Polyurethane chemistry modification is a kind of emerging bitumen modifying process.The clear 62-50363 of Japanese Patent discloses a kind of method of road bitumen polyurethane chemistry properties-correcting agent.This patent adds hydroxy-terminated polybutadienes polyvalent alcohol and polyisocyanates and reacts obtained base polyurethane prepolymer for use as chemical modifier in road matrix pitch, then added the elastomer latex of physically modified effect, therefore this patent report should be the mixed modifier that a kind of polyurethane chemistry properties-correcting agent and the agent of elastomer latex physically modified use simultaneously.In this polyurethane-modified bitumen technology, modifying asphalt softening temperature rises slowly, ascensional range is little, when usual properties-correcting agent addition (5wt%), leading indicator softening temperature only rises 7.1 DEG C, make pitch softening point improve about 20 DEG C with the SBS physically modified agent adopted and differ larger, therefore can not be met laying and the requirement in work-ing life of road under the bad weather circumstances of high temperature sweltering heat by the road bitumen of this modifier modification, its use range is subject to a definite limitation.
Russ P RU 2303613 C1 discloses a kind of urethane carries out modification method to pitch, this method comprises and being interacted by active ingredient substance in the polyurethane prepolymer synthesized in advance and pitch, to generate urethane network structure in pitch, wherein prepolymer is obtained by polyvalent alcohol and isocyanate reaction.According to invention, the interaction of pitch and prepolymer is by being realized by the method stirred in 0.25 ~ 1 hour in 60 ~ 140 DEG C of situations in temperature.Modified effect obtains low temperature brittleness, water suction, the material that hot mastication, sticking power and tensile strength strengthen, and the corrosion resistant material of improvement.Properties-correcting agent described in this patent, mainly for the sticking power to steel of pitch and water-intake rate, do not relate to the high temperature anti-rut behavior of modifying asphalt, and the softening temperature of pitch only can be increased to 50 ~ 64 DEG C by the properties-correcting agent provided.
Chinese patent CN 102464892A discloses a kind of composite polyurethane modifier for road asphalt, its component comprises the polyisocyanate prepolymers of NCO terminal or polymkeric substance, terminal hydroxy group or/and the compound of amino, organic catalysts for polyurethanes etc. can form the component of polyurethane structural, and other property regulation component.This properties-correcting agent can improve matrix pitch softening temperature performance to about 70 DEG C, and 5 DEG C of ductilities are to more than 20cm, and the modifying asphalt consistency of acquisition is good, excellent storage stability, modified effect are stable lasting.The process of this properties-correcting agent and matrix pitch hybrid process is simple simultaneously, processing temperature is low, thus reduces energy consumption, low-carbon environment-friendly.This patent adopts polyisocyanate prepolymers or polymkeric substance to react with chainextender in pitch and generates polyurethane structural, needs synthesis polyisocyanate prepolymers or polymkeric substance in advance, complex technical process, and the high temperature resistant anti-rut behavior not relating to modifying asphalt.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of road bitumen polyurethane-type high temperature resistant tracking-resisting modifier, make the bituminous composition of interpolation properties-correcting agent of the present invention can significantly improve high temperature anti-rut behavior and the softening temperature of its compound, make modifying asphalt possess certain low-temperature performance simultaneously.Particularly, this properties-correcting agent can meet the asphalt paving requirement of the road under different external temperature environment, extends the work-ing life of road, and adding technology is simple simultaneously, requires low, to overcome the defect of existing asphalt modifier to modified device.
For solving the problem, technical scheme of the present invention is as follows: the invention provides the high temperature resistant tracking-resisting modifier of a kind of road bitumen polyurethane-type, with total restatement of properties-correcting agent, described formula of modifier comprises the vulcabond of 25 ~ 65 weight parts, one or two or more in poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives, one or two or more in the macromolecule polyol of 15 ~ 60 weight parts and macromolecular multi-component amine, the small molecule polyol chainextender of 2 ~ 15 weight parts, one or two or more in small molecules polyamine chain extender and small molecules polyprotonic acid chainextender, organic catalysts for polyurethanes of 0.01 ~ 3 weight part, 0 ~ 45 parts by weight average molecular weight is 500 ~ 50000, preferably 750 ~ 40000, more preferably the polydiolefin family macromolecule compound of 3000 ~ 20000, optional oxidation inhibitor, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent, the one or two or more of the urethane auxiliary agents such as defoamer.
Preferably, with total restatement of properties-correcting agent, described formula of modifier comprises the vulcabond of 30 ~ 60 weight parts, one or two or more in poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives, one or two or more in the macromolecule polyol of 20 ~ 55 weight parts and macromolecular multi-component amine, the small molecule polyol chainextender of 3 ~ 10 weight parts, one or two or more in small molecules polyamine chain extender and small molecules polyprotonic acid chainextender, organic catalysts for polyurethanes of 0.02 ~ 2 weight part, 5 ~ 40 parts by weight average molecular weights 3000 ~ 20000 polydiolefin family macromolecule compound, and 2 ~ 15 weight parts, the preferably oxidation inhibitor of 5 ~ 10 weight parts, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent, the one or two or more of the urethane auxiliary agents such as defoamer.
In the preferred case, in properties-correcting agent, the amount of substance of the dissociateive NCO group in vulcabond, poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives is relative to hydroxyl or carboxyl in macromolecule polyol, small molecule polyol chainextender, polydiolefin family macromolecule compound, the amount of substance excessive 5% ~ 400% of the active hydrogen sum in the carboxyl in the amino in macromolecular multi-component amine, small molecules polyamine chain extender and small molecules polyprotonic acid chainextender, preferably excessive 10% ~ 300%, most preferably excessive 10% ~ 200%.It is to be understood that hydroxyl is considered as containing an active hydrogen in the present invention, primary amino is considered as having two active hydrogens, and carboxyl is considered as having an active hydrogen.
In properties-correcting agent of the present invention, described vulcabond comprises the one or two or more of aliphatic diisocyanate, alicyclic diisocyanate and aromatic diisocyanate, preferred tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), dicyclohexyl methane diisocyanate (H
12mDI) one or two or more, in isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI) and naphthalene diisocyanate (NDI).The NCO content of poly methylene poly phenyl poly isocyanate is 29.0-32.0wt%, with the weighing scale of poly methylene poly phenyl poly isocyanate, preferably from the one or two or more of PM-100, PM-130, PM-200, PM-300, PM-400, PM-600 and PM-700 of Yantai Wan Hua company.Di-isocyanate derivatives comprises the dimer of vulcabond, tripolymer, affixture and vulcabond and mixes polymeric one or two or more, preferred liquefied mdi, TDI dimer, TDI tripolymer, TDI-TMP affixture, TDI-HDI mixing polymer, HDI dimer, HDI tripolymer, IPDI tripolymer, IPDI-TMP affixture, H
6xDI tripolymer, H
6one or two or more in XDI-TMP affixture.Generally, when using two or more, they combine according to arbitrary proportion.
In properties-correcting agent of the present invention, it is 400 ~ 5000 that described macromolecule polyol is selected from number-average molecular weight, preferably 500 ~ 4000, more preferably hexanodioic acid system polyester polyol, aromatic polyester polyol, dimer acid polyester polyhydric alcohols, polycarbonate polyol, polyacrylate polyol, amine ester polyol, the one or two or more in polyoxyethylated polyols and polyoxypropylene polyol of 700 ~ 2500.It is the polyoxyalkyl diamines of 200 ~ 5000, the one or two or more in polyoxyalkyl polyamines and polyethylene polyamine that described macromolecular multi-component amine comprises number-average molecular weight, preferred number average molecular weight is 300 ~ 4000, more preferably the polyoxypropylene diamine of 400 ~ 3000, the one or two or more of polyethylene oxide diamine and polypropylene oxide triamine, the more preferably one or two or more of JEFFAMINE D-230, D-400, D-2000, T-3000 and T-403 etc. of Hensel Man.
In properties-correcting agent of the present invention, described small molecule polyol chainextender, small molecules polyamine chain extender, one or two or more in small molecules polyprotonic acid chainextender is selected from aromatic polyol, aromatic polyamine, aliphatic polyol, the one or two or more of aliphatic polyamine and small molecules polyprotonic acid, preferably from ethylene glycol, glycol ether, 1, 6-hexylene glycol, Resorcinol bis-hydroxypropyl ether, cyclohexanediol, 1, 4-butyleneglycol, 3, 5-diethyl toluene diamine, glycol ether, 1, 2-propylene glycol, TriMethylolPropane(TMP), 3, 3 '-two chloro-4, 4 '-diaminodiphenyl-methane, 4, 4 '-diaminodiphenyl-methane, diethyl toluene diamine, C4 ~ C18 di-carboxylic acid and adjacent to the one or two or more in benzene two C1 ~ C8 acid.
Polyurethane-type of the present invention is high temperature resistant, and tracking-resisting modifier can add or not add polydiolefin family macromolecule compound as required, it is 500 ~ 50000 that polydiolefin family macromolecule compound is selected from number-average molecular weight, preferably 750 ~ 40000, more preferably the liquid polybutadiene of 2000 ~ 30000, liquid polyisoprene, butadiene isoprene copolymer, butadiene-styrene copolymer, isoprene styrene multipolymer, hydroxy-terminated polybutadienes, hydroxy-terminated polybutadienes-vinyl cyanide, liquid end hydroxy styrene-butadiene rubber, one or two or more in carboxy terminated polybutadiene and carboxy terminated polybutadiene-vinyl cyanide, the such as LIR-30 of Kuraray company, LIR-310, LIR-390, LBR-307, LBR-305, the fluid rubber series product of L-SBR-820 and Zibo Qilong Chemical Industry Co., Ltd..
In properties-correcting agent of the present invention, described organic catalysts for polyurethanes comprises the one or two or more in tertiary amine compounds, organo-metallic compounds and quaternary ammonium compound, wherein tertiary amine compounds is including but not limited to dimethylcyclohexylamine, N-methylmorpholine, N-ethylmorpholine, 1-Methylimidazole, N, N, N ', N '-Tetramethyl Ethylene Diamine, 1,3,5-tri-(N, N-dimethylaminopropyl) one or two or more of six hydrogen-S-triazine dimethylisopro panolamines and N, N-dimethylethanolamine; Organo-metallic compounds comprises the alkylate of lead, tin, titanium, antimony, zinc, bismuth, zirconium and aluminium and the one or two or more of carboxylate salt, one or two or more in the acetic acid of preferred lead, tin, zinc, bismuth and zirconium, sad, isocaprylic acid, oleic acid, lauroleate, the more preferably one or two or more of the sub-tin of oxalic acid, two stannous octoates, two stannous oleates, dibutyl tin laurate, tin dilaurate sub-tin, Bismuth Octoate and lead octoate 36; Quaternary ammonium compound is including but not limited to the one or two or more of tetra-alkyl-phosphonium halide amine (as tetramethyl ammonium chloride), tetra-alkyl ammonium hydroxide (as Tetramethylammonium hydroxide salt), tetramethyl-ammonium 2-ethylhexoate and 2-hydroxypropyl trimethyl ammonium formate etc.
Polyurethane-type of the present invention is high temperature resistant, and tracking-resisting modifier can be thermoplasticity or thermoset, and its thermoplasticity or heat cured feature depend on the functionality of isocyanic ester and macromolecule polyol, macromolecular multi-component amine, small molecule polyol chainextender, small molecules polyamine chain extender and small molecules polyprotonic acid chainextender.Such as, when adopted isocyanic ester and macromolecule polyol, macromolecular multi-component amine, small molecule polyol chainextender, small molecules polyamine chain extender and small molecules polyprotonic acid functionality are 2, polyurethane-modified dose is thermoplasticity, when the functionality of wherein one or more components is greater than 2, polyurethane-modified dose is thermoset.
Polyurethane-type of the present invention is high temperature resistant, and tracking-resisting modifier can be used to the improvement of matrix pitch or polymer modified asphalt anti-rut behavior, and described polymer modified asphalt includes but not limited to SBS modifying asphalt, SBR modifying asphalt, rubber powder modified asphalt, ethylene-vinyl acetate copolymer modified pitch, polyethylene modified asphalt.
According to different grades or purposes road surface to the demand of performance of modified bitumen, this properties-correcting agent is 1 ~ 30wt% relative to the addition of matrix pitch or rubber powder modified asphalt or SBS modifying asphalt or SBR modifying asphalt or other polymer modified asphalts, preferred addition is 2 ~ 10wt%, more preferably 2 ~ 5wt%.Formula of modifier components in certain proportion to add after pitch in 150 ~ 180 DEG C of dispersing and mixing 1 ~ 3 hour, namely obtains modifying asphalt after cooling.
If need the pitch that can obtain for different processing methods, or the pitch of different areas crude refining, or the pitch that the different performance under different environment for use requires, properties-correcting agent proportion of composing and addition manner in the general knowledge adjustment this patent in field is made according to polyurethane material, and add the suitable usual auxiliaries for urethane, as the one or two or more of oxidation inhibitor, softening agent, hydrolysis-resisting agent, water-removal agent, ultraviolet absorbers and defoamer etc.
Oxidation inhibitor of the present invention comprises the one or two or more in phenol compound and amino benzenes compounds, preferably from antioxidant 264 (2,6-di-tert-butyl-4-methy phenol), antioxidant 1010 (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), the oxidation inhibitor 1035 (two [3-(3 of sulfo-diethylene, 5-di-tert-butyl-hydroxy phenyl) propionic ester]) and the one or two or more of antioxidant 1076 (β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid).
Softening agent of the present invention comprises the one or two or more of benzoic acids softening agent and small molecules fatty group dibasic acid, preferably from the one or two or more of dioctyl phthalate (DOP), dibutyl phthalate, Polycizer W 260 and dioctyl sebacate.
Hydrolysis-resisting agent of the present invention comprises the one or two or more of single carbodiimides, many carbodiimides and epoxy compounds, preferably from two (2,6-di-isopropyl) one or two or more of carbodiimide, two (the 4-tertiary butyl-2,6-di-isopropyl) carbodiimide and phenyl glycidyl ether.
One or two or more in water-removal agent Bao Kuo oxazolidine compounds of the present invention and p-Methyl benzenesulfonyl isocyanate, preferably from the pTSI of Zoldine MS-Plus, Bayer company of Angus company and the one or two or more of ICL International Computer Limited Incozol 2.
Ultraviolet absorbers of the present invention comprises the one or two or more in benzotriazole category, salicylate class and benzophenone compound, the one or two or more in Tinuvin 101, Tinuvin213, Tinuvin 317 of preferred Ciba speciality chemical company, Tinuvin 328, Tinuvin 320, Tinuvin P, Tinuvin 326 and Tinuvin517.
Defoamer of the present invention comprises the one or two or more of solvent-borne type defoamer and no-solvent type defoamer, preferably from the one or two or more of BYK-070, BYK-141, BYK-A500 and KYK-A550 of German BYK company.
The pitch adopting modifier modification of the present invention to obtain for common road, motorway, town road, bridge floor road, porous pavement, and railway bed, road surface, garden, road surface, square, airport pavement, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
The present invention directly by vulcabond or/and poly methylene poly phenyl poly isocyanate is or/and di-isocyanate derivatives, high molecular weight polyols are or/and macromolecular multi-component amine, small molecule chain extender, polydiolefin family macromolecule compound and other property regulation components are added in matrix pitch or polymer modified asphalt, and process at higher temperature (150 DEG C ~ 180 DEG C), the modifying asphalt with excellent anti-rut behavior can be obtained under the condition of comparatively few additive (2 ~ 5wt%).The mechanism of modification of properties-correcting agent of the present invention to matrix pitch is as follows: vulcabond, or/and poly methylene poly phenyl poly isocyanate is or/and di-isocyanate derivatives, macromolecule polyol are or/and after macromolecular multi-component amine and small molecule chain extender etc. be added into matrix pitch or polymer modified asphalt, generates polyurethane structural under the effect of high temperature and catalyzer in pitch.The raw material (di-isocyanate derivatives that polymer trivalent alcohol, polymer tertiary amine, three-functionality-degree small molecule chain extender, polymethylene multi-phenenyl isocyanate, functionality are greater than 2) that functionality is greater than 2 makes generated polyurethane structural have comparatively high-crosslinking-degree, thus makes modifying asphalt obtain excellent high temperature resistant anti-rut behavior; Simultaneously, the raw material (comprising macromolecule diol, polymer diamine, two functionality small molecule chain extenders, vulcabond, two functionality polymethylene multi-phenenyl isocyanates, two functionality di-isocyanate derivatives) that functionality equals 2 makes soft section of another part of obtained material be in uncrosslinked state, makes modifying asphalt obtain certain low-temperature performance.In addition, the polydiolefin family macromolecule compound added in formula without functionality (not hydroxyl, carboxyl or amino) or 2 functionality can further improve the low-temperature performance of modifying asphalt.
Positively effect of the present invention is:
(1) properties-correcting agent of the present invention both can be used for the improvement that matrix pitch also can be used for other polymer modified asphalt higher temperature rut resistance performances.After being added into matrix pitch, significantly can improve the high temperatures index of matrix pitch (i.e. softening temperature) to more than 65 DEG C, low-temperature performance index (i.e. 5 DEG C of ductilities) can be improved to more than 10cm, especially significantly can improve asphalt high temperature Rut resistance index (i.e. dynamic stability) to 10000 times/more than mm; When adding a small amount of (2 ~ 5wt%) properties-correcting agent of the present invention after polymer modified asphalt, by modified asphalt mixture high temperature Rut resistance index (i.e. dynamic stability) to 11000 times/more than mm, can significantly not reduce other performances of polymer modified asphalt simultaneously.Prepared modifying asphalt is applicable to the road pavement under various high temperature or low temperature bad weather circumstances, extends Road Service Life.
(2) isocyanate component can with matrix pitch, macromolecule polyol or/and the active hydrogen generation chemical reaction that contains in macromolecular multi-component amine and small molecule chain extender, thus improve the colloidal structure of pitch, the matrix pitch in the modifying asphalt of acquisition and properties-correcting agent consistency is good, 160 DEG C store more than 15 days without obviously emanate, modified effect stablizes lastingly.Compared with polyurethane-modified dose that reports with the clear 62-50363 of Japanese Patent, the present invention has fabulous improvement to the high-temperature behavior (softening temperature) of matrix pitch, low-temperature performance (ductility), and addition is low, the laying requirement of the road under different external temperature environment can be met, extend the work-ing life of road.
(3) adopt properties-correcting agent of the present invention, carry out only needing in the process of modification processing to shear dispersion being added to matrix pitch or polymer modified asphalt, the course of processing is simply easy to control, and production cost is low.
Embodiment
Following example is the implementation result in order to asphalt polyurethane properties-correcting agent of the present invention is better described, but properties-correcting agent of the present invention is not limited only to embodiment.
In embodiment and comparative example, each component concentration of properties-correcting agent is to account for total restatement of properties-correcting agent.Wherein the test of modifying asphalt softening temperature, ductility adopts standard GB/T/T4507-1999, GB/T4508-1999 to carry out respectively.The dynamic stability of asphalt adopts wheel tracking test to detect, and shaping, health and the test method of test test specimen are carried out according to the Ministry of Communications issuing standard JTJ052-2000 " highway engineering pitch and Asphalt Mixture Experiment code ".
Embodiment 1
The formula of properties-correcting agent of the present invention is as follows: the diphenylmethanediisocyanate (MDI-100 of 30wt%, NCO content 33.6%, Yantai Wanhua Polyurethane Co., Ltd), the number-average molecular weight of 55wt% is the polyoxypropylene diamine (D-2000 of 2000, Hensel Man), 1 of 3wt%, 4 butyleneglycols, the number-average molecular weight of 5wt% is the liquid polybutadiene (LBR of 30000, Kuraray company), the isocaprylic acid bismuth of 0.5wt%, water-removal agent Zoldine MS-Plus (the oxazole alkanes of 0.5wt%, Angus company), the oxidation inhibitor 2 of 1wt%, 6-di-tert-butyl-4-methy phenol, the plasticizer phthalic acid dioctyl ester of 4wt%, the hydrolysis-resisting agent two (2 of 1wt%, 6-di-isopropyl) carbodiimide.The amount of substance of the dissociateive NCO group wherein in diphenylmethanediisocyanate is relative to the amount of substance sum excessive 36% of active hydrogen contained by the hydroxyl in the amino of D-2000 and Isosorbide-5-Nitrae butyleneglycol.Under agitation being added successively in proportion by material in formula of modifier is heated in No. 70 straight run road bitumens of 160 DEG C, properties-correcting agent total addition level is to account for the 25wt% of matrix pitch, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 68.4 DEG C, 5 DEG C of ductility 6cm, compound 60 DEG C of dynamic stabilities are 11800 times/mm.Modifying asphalt and aggregate wrap well, may be used for common road, the paving of town road, reinforce and repairing treatment.
Embodiment 2
The formula of properties-correcting agent of the present invention is as follows: the poly methylene poly phenyl poly isocyanate (PM-200 of 60wt%, NCO content 31.2%, Yantai Wanhua Polyurethane Co., Ltd), the functionality of 15wt% is 3, number-average molecular weight is the polypropylene oxide triamine (T-3000 of 3000, Hensel Man), 5wt%, functionality is 2, number-average molecular weight is the polycarbonate polyol (CD210 of 1000, Daisel chemical industry Co., Ltd of Japan), the TriMethylolPropane(TMP) of 5wt%, 4 of 5wt%, 4 '-diaminodiphenyl-methane (MDA, Yantai Wanhua Polyurethane Co., Ltd), 5wt% number-average molecular weight is the hydroxy-terminated polybutadienes (HTPB of 4000, Qi Long Chemical Co., Ltd.), the dibutyl tin laurate of 0.5wt%, the N of 0.5wt%, N-dimethylethanolamine, 0.5wt% water-removal agent pTSI (oxazole alkanes, Bayer company), 1wt% oxidation inhibitor 1035, the antioxidant 1076 of 0.5wt%, 1wt% softening agent dioctyl sebacate, 1wt% hydrolysis-resisting agent phenyl glycidyl ether.The amount of substance of the dissociateive NCO group wherein in polymethylene multi-phenenyl isocyanate is relative to the amount of substance sum excessive 75% of active hydrogen contained by the hydroxyl in the amino in T-3000 and MDA and CD210, TriMethylolPropane(TMP) and hydroxy-terminated polybutadienes.Under agitation being added successively in proportion by material in formula of modifier is heated in No. 70 straight run road bitumens of 160 DEG C, properties-correcting agent total addition level is to account for the 5wt% of matrix pitch, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 73.2 DEG C, 5 DEG C of ductility 11cm, compound 60 DEG C of dynamic stabilities are 11000 times/mm.Modifying asphalt and aggregate wrap well, may be used for common road, town road, porous pavement, and railway bed, road surface, garden, road surface, square, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
Embodiment 3
The formula of properties-correcting agent of the present invention is as follows: the liquefied mdi (MP-35 of 45wt%, NCO content 27.5%, Yantai Wanhua Polyurethane Co., Ltd), 35wt%, functionality is 2, number-average molecular weight is the hexanodioic acid system polyester polyol (PEA-1000 of 1000, Yantai Synthetic Leather Factory), the hexanodioic acid of 3wt%, 1 of 2wt%, 6 hexylene glycols, 5wt% number-average molecular weight is the Polybutadiene-styrene multipolymer (LIR of 10000, Kuraray company), the dibutyl tin laurate of 0.5wt%, 0.5wt% tetramethyl ammonium chloride, 0.5wt% water-removal agent Zoldine MS-Plus (oxazole alkanes, Angus company), 1wt% oxidation inhibitor 1035, 3wt% plasticizer phthalic acid dioctyl ester, 3.5wt% dioctyl sebacate, 1wt% ultraviolet absorbers Tinuvin 101 (Ciba speciality chemical company).The amount of substance of the dissociateive NCO group wherein in liquefied mdi relative to PEA-1000 and 1, the amount of substance sum excessive 103% of active hydrogen contained by the hydroxyl in 6 hexylene glycols and the carboxyl in hexanodioic acid.Under agitation being added successively in proportion by material in formula of modifier is heated in No. 70 straight run road bitumens of 160 DEG C, properties-correcting agent total addition level is to account for the 10wt% of matrix pitch, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 73.2 DEG C, 5 DEG C of ductility 14cm, compound 60 DEG C of dynamic stabilities are 12200 times/mm.Modifying asphalt and aggregate wrap well, and modifying asphalt and aggregate wrap well, may be used for common road, the paving of town road, reinforce and repairing treatment.
Embodiment 4
The formula of properties-correcting agent of the present invention is as follows: the blending ratio of 50wt% is the HDI tripolymer (N3300 of 50/50, NCO content 22%, Bayer company) and polymethylene polyisocyanates (PM-200, NCO content 31.2%, Yantai Wanhua Polyurethane Co., Ltd) mixture, the functionality of 20wt% is 3, polypropylene oxide triamine (the T-3000 of number-average molecular weight 3000, Hensel Man), the terephthalic acid of 5wt%, 10wt% number-average molecular weight is the terminal hydroxy group base polyhutadiene of 4000, 10% number-average molecular weight is the liquid polybutadiene of 10000, the dimethylcyclohexylamine of 0.5wt%, 0.5wt% water-removal agent Incozol 2 (p-Methyl benzenesulfonyl isocyanate class, ICL International Computer Limited), 1wt% oxidation inhibitor 1035, 2wt% plasticizer phthalic acid dioctyl ester, 1wt% defoamer BYK-141 (BYK company).The amount of substance rolled into a ball of dissociateive NCO wherein in HDI tripolymer and polymethylene polyisocyanates is relative to the amount of substance sum excessive 201% of active hydrogen contained by the hydroxyl in the amino in T-3000, the carboxyl in terephthalic acid and hydroxy-terminated polybutadienes.Material in formula of modifier is under agitation added in proportion successively SBS modifying asphalt (the SBS volume 5% being heated to 160 DEG C, SBS trade mark LG411, LG chemistry) in, properties-correcting agent total addition level is to account for the 2wt% of SBS modifying asphalt, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 82 DEG C, 5 DEG C of ductility 27cm, and compound 60 DEG C of dynamic stabilities are 14000 times/mm.Modifying asphalt and aggregate wrap well, may be used for high-grade highway, common road, town road, porous pavement, and railway bed, road surface, garden, road surface, square, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
Embodiment 5
The formula of properties-correcting agent of the present invention is as follows: the blending ratio of 30wt% is the diphenylmethanediisocyanate (MDI-100 of 80/20, NCO content 33.6%, Yantai Wanhua Polyurethane Co., Ltd) and tolylene diisocyanate (Desmodur T80, NCO content 48%, Bayer company) mixture, 10wt%, functionality is 2, number-average molecular weight is the hexanodioic acid system polyester polyol (PEA-1000 of 1000, Yantai Synthetic Leather Factory), 10wt%, functionality to be 2 number-average molecular weights be 1000 polycarbonate polyol (CD210, Daisel chemical industry Co., Ltd of Japan), 3 of 7wt%, 3 '-two chloro-4, 4 '-diaminodiphenyl-methane (MOCA), 35wt% molecular weight is the carboxy terminated polybutadiene (CTPB of 2000, Qi Long Chemical Co., Ltd.), the isocaprylic acid bismuth of 0.5wt%, 0.5wt% water-removal agent Zoldine MS-Plus (oxazole alkanes, Angus company), 0.5wt% oxidation inhibitor 1035, 0.5wt% antioxidant 1010, 5wt% softening agent dioctyl sebacate, 0.5wt% hydrolysis-resisting agent two (2, 6-di-isopropyl) carbodiimide, 0.5wt% hydrolysis-resisting agent phenyl glycidyl ether.The amount of substance of the dissociateive NCO group wherein in MDI and TDI is relative to the amount of substance sum excessive 45% of active hydrogen contained by the carboxyl in the amino in MOCA, the hydroxyl in PEA-1000 and CD210 and carboxy terminated polybutadiene.Material in formula of modifier is under agitation added in proportion successively SBR modifying asphalt (the SBR volume 5% being heated to 160 DEG C, SBR trade mark GS-1, Shandong Gao Shi science, industry and trade limited-liability company) in, properties-correcting agent total addition level is to account for the 2wt% of SBR modifying asphalt, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 65.4 DEG C, 5 DEG C of ductility 24cm, and compound 60 DEG C of dynamic stabilities are 11300 times/mm.Modifying asphalt and aggregate wrap well, may be used for common road, town road, porous pavement, and railway bed, road surface, garden, road surface, square, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
Embodiment 6
The formula of properties-correcting agent of the present invention is as follows: the poly methylene poly phenyl poly isocyanate (NCO content 31.2%) of 45wt%, the functionality of 30wt% is 3, the T-3000 of the Hensel Man of molecular weight 3000, the TriMethylolPropane(TMP) (TMP) of 5wt%, 1 of 5wt%, 4 butyleneglycols, 10wt% molecular weight is the carboxy terminated polybutadiene (CTPB of 2000, Qi Long Chemical Co., Ltd.), the isocaprylic acid bismuth of 0.5wt%, 0.5wt% water-removal agent ZoldineMS-Plus (oxazole alkanes, Angus company), 1wt% oxidation inhibitor 1035, 2wt% plasticizer phthalic acid dioctyl ester, 1wt% hydrolysis-resisting agent two (2, 6-di-isopropyl) carbodiimide.The amount of substance of the dissociateive NCO group wherein in poly methylene poly phenyl poly isocyanate is relative to the amount of substance sum excessive 14% of active hydrogen contained by the hydroxyl in the amino in T-3000, TriMethylolPropane(TMP) and Isosorbide-5-Nitrae butyleneglycol and the carboxyl in carboxy terminated polybutadiene.Material in formula of modifier is under agitation added in proportion successively rubber powder modified asphalt (the waste-tyre rubber-powder volume 15wt% being heated to 160 DEG C, 80 orders, the extraordinary regenerated rubber company limited of good luck) in, properties-correcting agent total addition level is to account for the 2wt% of rubber powder modified asphalt, 160 DEG C of dispersing and mixing 2 hours, the softening temperature measuring modifying asphalt after being cooled to room temperature is 69.4 DEG C, 5 DEG C of ductility 18cm, and compound 60 DEG C of dynamic stabilities are 12300 times/mm.Modifying asphalt and aggregate wrap well, may be used for common road, town road, porous pavement, and railway bed, road surface, garden, road surface, square, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
Adopt the performance comparison of the pitch of the polyurethane high temperature resistant tracking-resisting modifier modification of the embodiment of the present invention 2,4,5,6 and the polymer modified asphalt such as matrix pitch and SBS, SBR, rubber powder as follows:
As seen from the table, properties-correcting agent of the present invention can improve softening temperature index and 5 DEG C of stretch indexes of matrix pitch, especially can significantly improve the high temperature anti-rut behavior of matrix pitch.Anti-rut agent adds the polymer modified asphalt such as SBS, SBR or rubber powder, significantly can improve the high temperature resistant anti-rut behavior of modified asphalt mixture, effectively improve pitch softening point, does not significantly reduce the low-temperature performance of modifying asphalt simultaneously.
Claims (16)
1. the high temperature resistant tracking-resisting modifier of road bitumen polyurethane-type, it is characterized in that: with total restatement of properties-correcting agent, described formula of modifier comprises the vulcabond of 25 ~ 65 weight parts, one or two or more in poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives, one or both in the macromolecule polyol of 15 ~ 60 weight parts and macromolecular multi-component amine, the small molecule polyol chainextender of 2 ~ 15 weight parts, one or two or more in small molecules polyamine chain extender and small molecules polyprotonic acid chainextender, organic catalysts for polyurethanes of 0.01 ~ 3 weight part, 5 ~ 40 parts by weight average molecular weights 3000 ~ 20000 polydiolefin family macromolecule compound, optional oxidation inhibitor, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, the one or two or more of water-removal agent and defoamer.
2. according to the high temperature resistant tracking-resisting modifier of polyurethane-type according to claim 1, it is characterized in that: with total restatement of properties-correcting agent, described formula of modifier comprises the vulcabond of 30 ~ 60 weight parts, one or two or more in poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives, one or both in the macromolecule polyol of 20 ~ 55 weight parts and macromolecular multi-component amine, the small molecule polyol chainextender of 3 ~ 10 weight parts, one or two or more in small molecules polyamine chain extender and small molecules polyprotonic acid chainextender, organic catalysts for polyurethanes of 0.02 ~ 2 weight part, 5 ~ 40 parts by weight average molecular weights 3000 ~ 20000 polydiolefin family macromolecule compound, the oxidation inhibitor of 2 ~ 15 weight parts, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, the one or two or more of water-removal agent and defoamer.
3. according to the high temperature resistant tracking-resisting modifier of polyurethane-type according to claim 2, it is characterized in that: with total restatement of properties-correcting agent, described formula of modifier comprises the one or two or more of the oxidation inhibitor of 5 ~ 10 weight parts, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent and defoamer.
4. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: described vulcabond comprises the one or two or more of aliphatic diisocyanate, alicyclic diisocyanate and aromatic diisocyanate, described di-isocyanate derivatives comprises the dimer of vulcabond, tripolymer, affixture and vulcabond and mixes polymeric one or two or more.
5. according to the high temperature resistant tracking-resisting modifier of polyurethane-type according to claim 4, it is characterized in that: described vulcabond comprises tolylene diisocyanate, diphenylmethanediisocyanate, dicyclohexyl methane diisocyanate, isophorone diisocyanate, one or two or more in hexamethylene diisocyanate and naphthalene diisocyanate, described di-isocyanate derivatives comprises liquefied mdi, TDI dimer, TDI tripolymer, TDI-TMP affixture, TDI-HDI mixing polymer, HDI dimer, HDI tripolymer, IPDI tripolymer, IPDI-TMP affixture, H
6xDI tripolymer, H
6one or two or more in XDI-TMP affixture.
6. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: described macromolecule polyol is selected from the hexanodioic acid system polyester polyol that number-average molecular weight is 400 ~ 5000, aromatic polyester polyol, dimer acid polyester polyhydric alcohols, polycarbonate polyol, polyacrylate polyol, amine ester polyol, one or two or more in polyoxyethylated polyols and polyoxypropylene polyol, described macromolecular multi-component amine is selected from the polyoxypropylene diamine that number-average molecular weight is 200 ~ 5000, one or two or more in polypropylene oxide triamine and polyethylene polyamine.
7. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: the one or two or more in described small molecule polyol chainextender, small molecules polyamine chain extender and small molecules polyprotonic acid chainextender is selected from the one or two or more of aromatic polyol, aromatic polyamine, aliphatic polyol, aliphatic polyamine and small molecules polyprotonic acid.
8. according to the high temperature resistant tracking-resisting modifier of polyurethane-type according to claim 7, it is characterized in that: described small molecule polyol chainextender, one or two or more in small molecules polyamine chain extender and small molecules polyprotonic acid chainextender is selected from ethylene glycol, glycol ether, 1, 6-hexylene glycol, Resorcinol bis-hydroxypropyl ether, cyclohexanediol, 1, 4-butyleneglycol, 3, 5-diethyl toluene diamine, glycol ether, 1, 2-propylene glycol, TriMethylolPropane(TMP), 3, 3'-bis-chloro-4, 4'-diaminodiphenyl-methane, 4, 4'-diaminodiphenyl-methane, diethyl toluene diamine, C
4~ C
18aliphatic dicarboxylic acid and adjacent/to benzene two C
1~ C
8one or two or more in acid.
9. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: described organic catalysts for polyurethanes is selected from the one or two or more in tertiary amine compounds, organo-metallic compounds and quaternary ammonium compound.
10. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: described polydiolefin family macromolecule compound is selected from the one or two or more in liquid polybutadiene, liquid polyisoprene, butadiene isoprene copolymer, butadiene-styrene copolymer, isoprene styrene multipolymer, hydroxy-terminated polybutadienes, hydroxy-terminated polybutadienes-vinyl cyanide, liquid end hydroxy styrene-butadiene rubber, carboxy terminated polybutadiene and carboxy terminated polybutadiene-vinyl cyanide.
11. according to the high temperature resistant tracking-resisting modifier of the polyurethane-type described in claim 1 or 2, it is characterized in that: in properties-correcting agent, the amount of substance of dissociateive NCO in vulcabond, poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives group is relative to the amount of substance excessive 5% ~ 400% of active hydrogen sum in macromolecule polyol, macromolecular multi-component amine, small molecule polyol chainextender, small molecules polyamine chain extender, small molecules polyprotonic acid chainextender and polydiolefin family macromolecule compound.
12. according to the high temperature resistant tracking-resisting modifier of polyurethane-type according to claim 11, it is characterized in that: in properties-correcting agent, the amount of substance of dissociateive NCO in vulcabond, poly methylene poly phenyl poly isocyanate and di-isocyanate derivatives group is relative to the amount of substance excessive 10% ~ 300% of active hydrogen sum in macromolecule polyol, macromolecular multi-component amine, small molecule polyol chainextender, small molecules polyamine chain extender, small molecules polyprotonic acid chainextender and polydiolefin family macromolecule compound.
The purposes of the high temperature resistant tracking-resisting modifier of polyurethane-type described in 13. any one of claim 1-12, wherein this properties-correcting agent is added to improve the high temperature resistant anti-rut behavior of pitch in matrix pitch or polymer modified asphalt, and polymer modified asphalt comprises SBS modifying asphalt, SBR modifying asphalt, rubber powder modified asphalt, ethylene-vinyl acetate copolymer modified pitch, polyethylene modified asphalt; This properties-correcting agent is 1 ~ 30wt% relative to the addition of matrix pitch or polymer modified asphalt.
The purposes of the high temperature resistant tracking-resisting modifier of 14. polyurethane-type according to claim 13, properties-correcting agent is addition relative to the addition of matrix pitch or polymer modified asphalt is 2 ~ 10wt%.
The purposes of the high temperature resistant tracking-resisting modifier of 15. polyurethane-type according to claim 14, properties-correcting agent is addition relative to the addition of matrix pitch or polymer modified asphalt is 2 ~ 5wt%.
16. purposes according to claim 13, it is characterized in that: the pitch after polyurethane-modified is used for common road, motorway, town road, bridge floor road, porous pavement, and railway bed, road surface, garden, road surface, square, airport pavement, goods yard, the paving of harbour, reinforce, repair, waterproof and grouting treatment.
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