CN103554937A - Anti-rut agent, asphalt material added with anti-rut agent and preparation method thereof - Google Patents
Anti-rut agent, asphalt material added with anti-rut agent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an anti-rut agent, which is mainly composed of the following components in parts by weight: 25-65 parts of thermoplastic polyurethane, 10-20 parts of micromolecular chain extender, 20-45 parts of polyethylene and/or polypropylene, 5-10 parts of scrap rubber powder, 5-10 parts of glass fibers and 5-10 parts of polyurethane auxiliary, wherein the polyurethane auxiliary is at least one of antioxidant, plasticizer, hydrolysis inhibitor, ultraviolet absorber, moisture remover and defoamer; the thermoplastic polyurethane, the polyethylene, the polypropylene and the scrap rubber powder are obtained from industrial wastes. The invention also discloses an asphalt material added with the anti-rut agent and a preparation method of the asphalt material. The anti-rut agent provided by the invention is capable of effectively optimizing the anti-rut performance of asphalt; an asphalt pavement structure added with the asphalt can be remarkably improved in high-temperature anti-rut performance and softening point; in the meantime, the modified asphalt pavement has certain resistance to low-temperature diseases.
Description
Technical field
The present invention relates to a kind of anti-rut agent being applied in road bitumen, the invention still further relates to a kind of pitch that adds this anti-rut agent and preparation method thereof.
Background technology
At present, the rapid raising of the fast development of market economy and living standards of the people is that China's road traffic is fast-developing to a great extent to be promoted, and the contrary construction that also requires China's road traffic continues to accelerate to advance.Asphalt pavement rut is one of primary highway disease of China's road traffic, it is that bituminous pavement is under car load repeated action, runway produces larger permanent deformation at wheelpath place, and the pavement damage phenomenon of the similar groove of a kind of shape forming along vehicle heading on bituminous pavement.The generation of rut disease is generally at high temperature season, and oil mat forms gradually in the lower generation tension set of repeatedly rolling of vehicle and VISCOUS FLOW.The most of one-way traffic of implementing of road traffic now, has especially accelerated the formation of rut disease.Rut disease has seriously shortened the work-ing life of road, has reduced the service quality of road, and can bring great potential safety hazard to traffic safety: as affect the planeness on road surface, reduce the security of driving; Easy ponding in rut groove, very easily causes high speed traveling to break away, and has huge hidden danger; The formation of rut causes road surface one-piece construction inhomogeneous, thereby causes bulk strength to reduce, and easily causes other derivative road surface infringements.
Anti-rut agent is a kind of multi-component Chemicals, and it is added to shear strength or the ability of anti-deformation that can significantly improve bituminous pavement in pitch or its compound by a certain percentage, thereby effectively stops or delay the generation of rut.Now widely used anti-rut agent is mainly divided into inorganic and organic two large classes.Glass fibre, diatomite etc. are main inorganic modified dose, and organic modifiers be take polyethylene (PE), vinyl-vinyl acetate copolymer (EVA), styrene-butadiene rubber(SBR) (SBR) etc. as main.Mineral-type anti-rut agent, by filling embedded squeezing in the space of the skeleton that gathers materials, has strengthened the skeleton function of asphalt structure, make between compound tightr, thereby reduce the perviousness on moulding road surface and then reduced rut degree of damage.Organic anti-rut agent is because the micro-crystallization district of polymer formation has suitable intensity, and part wire drawing becomes plastic optical fibre in mix process, then crosslinked bridging forms macroreticular shape structure, therefore pitch and the bonding strength gathering materials have been strengthened, strengthen the globality of pavement structure, and there is certain recovery of elasticity function.At present common anti-rut agent product has the DUROFLEX etc. of French PRPLAST, Germany on the market.These products all be take polyethylene as major ingredient, can significantly improve rutting-resistant performance of mixture, easy to use, but price is all more expensive, and economic benefit is not high.Product cold resistance can be poor in addition, easily under low temperature environment, produces embrittlement phenomenon, and ageing resistance and antistrip performance are also poor.
Application number is that 201310036041.1 the high temperature resistant tracking-resisting modifier > of polyurethane-type > for application for a patent for invention < < road bitumen (application publication number is CN103102706A) has announced the high temperature resistant tracking-resisting modifier of polyurethane-type for a kind of road bitumen, its component comprises vulcabond, one or two or more in poly methylene poly phenyl poly isocyanate and vulcabond derivative, one or two or more in macromolecule polyol and macromolecular multi-component amine, small molecules polyvalent alcohol chainextender, one or two or more in small molecules polyamine chainextender and small molecules polyprotonic acid chainextender, organic catalysts for polyurethanes, number-average molecular weight is at 500～50000 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.This anti-rut agent can significantly improve softening temperature index and 5 ℃ of stretch indexes of matrix pitch, especially can significantly improve the anti-rut performance of high temperature of matrix pitch.This is invented disclosed anti-rut agent and belongs to in-situ polymerization and obtain polyurethane-modified product, and other polymer-type anti-rut agent Expenses Costs are higher relatively, and equipment requirements is stricter.
Application number is 201110069296.9 Chinese invention patent application < < anti-rut agent, the disclosed anti-rut agent of bituminous material and preparation method > > (application publication number is CN102181134A) is mainly made by the raw material of following weight per-cent: urethane: 30.0%～40.0%, polyethylene terephthalate: 40.0%～50.0%, polymethacrylonitrile: 5.0%～10.0%, calcium carbonate: 5.0%～10.0%.The raw material that this anti-rut agent is used is used analytically pure reagent for test, and its expense is high.The preparation method of the bituminous material that this application for a patent for invention also discloses anti-rut agent and comprised anti-rut agent, two preparation process all need could realize by the equipment such as tank reactor, reactor, twin screw extruder that is filled with nitrogen, and first by aforesaid device, prepare anti-rut agent while preparing bituminous material, and then prepare bituminous material in identical equipment, preparation process is loaded down with trivial details, and need be by specific equipment.
Summary of the invention
Technical problem to be solved by this invention is that a kind of anti-rut agent that is applied in road bitumen is separately provided.
Another technical problem to be solved by this invention is to provide a kind of bituminous material that adds this anti-rut agent.
Another technical problem to be solved by this invention is to provide a kind of preparation method who has added the bituminous material of anti-rut agent.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of anti-rut agent, is characterized in that the component that comprises following weight proportion:
Described urethane auxiliary agent is at least one of oxidation inhibitor, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent and defoamer;
Described thermoplastic polyurethane is at least one in waste and old sole material, waste and old leather trunk material and waste and old suitcase material;
Described polyethylene or polypropylene are taken from industrial waste, these industrial wastes can form micro-crystallization district in bituminous texture, and in processing mix process, wire drawing becomes polymer fiber, in the skeleton that gathers materials, plays reinforced action, has strengthened asphalite arogel ramming material system and has interacted and globality;
Described shoddy is waste tire rubber.
, its comprise component between optimum weight proportioning as follows:
Described chainextender is TriMethylolPropane(TMP) and 4, the mixture of 4 '-diaminodiphenylmethane, TriMethylolPropane(TMP) and 4, the weight ratio of 4 '-diaminodiphenylmethane is 1: 2～2: 1, be preferably 4 of the TriMethylolPropane(TMP) of 5～10 parts and 5～10 parts, 4 '-diaminodiphenylmethane.Both are used in conjunction with, when increasing polyurethane molecular chain, and the crosslinked macroreticular shape structure that obtains.TriMethylolPropane(TMP) provides ternary cross-linking set, and 4,4 '-diaminodiphenylmethane and polymer reaction can generate the urea groups that internal cohesive energy is high, can give polyether polyols with reduced unsaturation better physicals, and its steric hindrance is larger simultaneously, can make crosslinking reaction more easily control.
The fineness of described shoddy is 50～80 orders.
The fineness of described shoddy is 60 orders.
Add a bituminous material for anti-rut agent, comprise anti-rut agent and pitch, it is characterized in that: described anti-rut agent accounts for 1%～20% of pitch gross weight.
Described anti-rut agent accounts for 2%～5% of pitch gross weight.
A preparation method for bituminous material, is characterized in that comprising the steps:
1. in the mixed solvent of thermoplastic polyurethane is water-soluble and acetone, the volume ratio of water and acetone is 0.9～1.1: 1.1～0.9, under base catalysis condition, at 140 ℃～160 ℃, carry out catalytic hydrolysis 2h～3h, the ratio of described catalyzer and mixed solvent is 10mol: 100L, and alkaline catalysts is preferably sodium hydroxide or potassium hydroxide;
2. by step, 1. hydrolysate and chainextender, polyethylene and/or polypropylene, shoddy, glass fibre and the urethane auxiliary agent of gained are made anti-rut agent according to proportioning, the anti-rut agent of preparation is added in pitch, anti-rut agent accounts for 1%～20% of pitch gross weight, mixed refining process 2h～3h at 150 ℃～180 ℃, be cooled to room temperature, obtain bituminous material.
Described step 2. in, anti-rut agent accounts for 2%～5% of pitch gross weight.
Oxidation inhibitor in urethane auxiliary agent comprises at least one in phenol compound and amino benzenes compounds, preferably from antioxidant 264 (2,6-di-t-butyl-4-cresols), antioxidant 1010 (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), (sulfo-diethylene is two, and [3-(3 for oxidation inhibitor 1035, propionic ester)) and at least one of antioxidant 1076 (the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) 5-di-tert-butyl-hydroxy phenyl).
Softening agent in urethane auxiliary agent comprises at least one of benzoic acids softening agent and small molecules fatty group dibasic acid, preferably from least one of dioctyl phthalate (DOP), dibutyl phthalate, Polycizer W 260 and dioctyl sebacate.
Hydrolysis-resisting agent in urethane auxiliary agent comprises at least one of single carbodiimide compounds, many carbodiimide compounds and epoxy compounds, preferably from two (2,6-diisopropyl phenyl) at least one of carbodiimide, two (the 4-tertiary butyl-2,6-diisopropyl phenyl) carbodiimide and phenyl glycidyl ether.
Water-removal agent Bao Kuo oxazolidine compounds in urethane auxiliary agent and at least one in p-Methyl benzenesulfonyl isocyanate, preferably from the U.S. of Angus chemical company oxazolidine water-removal agent Zoldine MS-Plus (3-Ethyl-2-Methyl-2-(3-methyl butyl)-1,3-oxazolidine), the pTSI of Bayer company and at least one of the Incozol2 of Britain ICL International Computer Limited.
Ultraviolet absorbers in urethane auxiliary agent comprises at least one in benzotriazole category, salicylate class and benzophenone compound, preferably at least one in Tinuvin101, Tinuvin213, Tinuvin317, Tinuvin328, Tinuvin320, Tinuvin P, Tinuvin326 and the Tinuvin517 of Ciba special chemical article company.
Defoamer in urethane auxiliary agent comprises at least one of solvent-borne type defoamer and no-solvent type defoamer, preferably from least one of BYK-070, BYK-141, BYK-A500 and the BYK-A550 of German BYK company.
The anti-rut agent that above-mentioned regeneration waste resource is made can be used to the improvement of the anti-rut performance of different types of pitch, and then obtains bituminous material.Pitch before modification comprises matrix pitch or polymer modified asphalt, and polymer modified asphalt includes but not limited to SBS (styrene-butadiene-styrene block copolymer) modifying asphalt, SBR (styrene-butadiene rubber(SBR)) modifying asphalt, ethene-vinyl acetate modifying asphalt.
Technical scheme of the present invention is as follows to the mechanism of modification of pitch: thermoplastic polyurethane first passes through partial hydrolysis, then hydrolysate and TriMethylolPropane(TMP), 4, one or both of 4 '-diaminodiphenylmethane are cross-linking reaction in mixing process, in pitch, form the netted structure of urethane, thereby make the bituminous material after modification there is larger shear strength or ability of anti-deformation, and there is certain elastic recovery, thereby there is excellent high temperature resistant anti-rut performance.
The shoddy adding in construction process is because high temperature action is softening, then thermoforming in the process of rolling, the single particle size fine aggregate with high-adhesiveness is filled embedded squeezing and is entered to gather materials in the space of skeleton, strengthened the skeleton function of asphalt structure, make between compound effect tightr, the perviousness that has reduced moulding road surface has increased the load capacity of bituminous pavement simultaneously.
Glass fibre can conduct absorbed heat to urethane network structure to a certain extent, makes it carry out elastic recovery, simultaneously glass fibre or extraordinary supporting material.The urethane auxiliary agents such as oxidation inhibitor, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent, defoamer have improved the resistivity of bituminous pavement to injuries such as water injury, injury from low temperature, ultraviolet injury, oxidation crackings.
Compared with prior art, the invention has the advantages that: 1, the composition in this anti-rut agent is industry, life waste material, draw materials convenient and with low cost; 2, this anti-rut agent can be used for the improvement of the anti-rut performance of different types of pitch, for example matrix pitch and polymer modified asphalt, in matrix pitch, add this anti-rut agent, its softening temperature can reach more than 75 ℃, and low-temperature performance is also improved (5 ℃ of ductilities can reach 15cm more than) fully, especially can increase substantially the anti-rut index (60 ℃ of dynamic stabilities can reach 12000 times/more than mm) of bituminous pavement; In polymer modified asphalt, add this anti-rut agent, can increase substantially the anti-rut index (60 ℃ of dynamic stabilities are more than 14000 times) of bituminous pavement, do not affect other performances of polymer modified asphalt simultaneously; 3, use and to have added the bituminous pavement that the bituminous material of this anti-rut agent produces and have certain anti-low temperature disease performance, extend its work-ing life, and security and stability improves.When 4, the bituminous material of this anti-rut agent has been added in preparation, only each component of anti-rut agent need be added in the pitch for the treatment of modification, and mixed refining process can obtain bituminous material at a certain temperature, its preparation technology is simple, mild condition, and to equipment without harsh requirement.
To sum up, this anti-rut agent, when reducing bituminous pavement laying cost, is of value to again the regeneration of waste resource, is of value to environment protection and Sustainable development.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1:
The formula of the present embodiment anti-rut agent is as follows: the thermoplastic polyurethane fudger corner material of 45wt% (Quanzhou He Cheng Shoes Industry Co., Ltd.), the TriMethylolPropane(TMP) of 5wt% (Shanghai Hai Qu Chemical Co., Ltd.), 4 of 5wt%, 4 '-diaminodiphenylmethane (Shanghai Hai Qu Chemical Co., Ltd.), polyethylene industrial waste (the Ningbo plastic molding and processing plant of 25wt%, number-average molecular weight is 50000～100000), the shoddy of 10wt% (Hengshui Ze Hao rubber chemicals company limited, fineness is 60 orders), the glass fibre of 5%wt (Jiangning, Nanjing district Tao Wu glass factory), the water-removal agent pTSI of 0.5wt% (Bayer company), oxidation inhibitor four [β-(3 of 1wt%, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (Hangzhou Jesse blocks Chemical Co., Ltd.), the plasticizer phthalic acid dibutylester of 2.5wt% (Hangzhou Jesse blocks Chemical Co., Ltd.), the hydrolysis-resisting agent phenyl glycidyl ether of 1wt% (above sea cowry combination work company limited).
In the mixed solvent of the thermoplastic polyurethane fudger corner material in above-mentioned formula is water-soluble and acetone (volume ratio 1: 1), then add alkaline catalysts, be specially potassium hydroxide, wherein the ratio of potassium hydroxide and water and acetone cumulative volume is 10mol: 100L, under base catalysis condition, in 80 ℃ of controlled hydrolysis 2h, then remove desolventizing.Again hydrolysate and other components are added in No. 70 straight run road bitumens (Weifang, Shandong great profit 70#A) that have been heated to 160 ℃ in proportion successively, the addition of anti-rut agent accounts for 5% of matrix pitch, at 160 ℃ of mixed refining process 4h, be then cooled to room temperature, obtain bituminous material.After tested, the softening point of bituminous material that adopts the present embodiment to prepare is 76.5 ℃, and 5 ℃ of ductilities are 19cm, and 60 ℃ of dynamic stabilities of compound are 12500 times/mm.
Embodiment 2:
The formula of the present embodiment anti-rut agent is as follows: the thermoplastic polyurethane waste material of 55wt% (Quanzhou He Cheng Shoes Industry Co., Ltd.), the TriMethylolPropane(TMP) of 5wt% (Shanghai Hai Qu Chemical Co., Ltd.), 4 of 5wt%, 4 '-diaminodiphenylmethane (Shanghai Hai Qu Chemical Co., Ltd.), polyethylene industrial waste (the Ningbo plastic molding and processing plant of 20wt%, number-average molecular weight is 50000～100000), the shoddy of 5wt% (Hengshui Ze Hao rubber chemicals company limited, fineness is 60 orders), the glass fibre of 5wt% (Jiangning, Nanjing district Tao Wu glass factory), the water-removal agent Zoldine MS-Plus of 0.5wt% (U.S. Angus chemical company), the antioxidant β-(3 of 0.5wt%, 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid (Hangzhou Jesse blocks Chemical Co., Ltd.), the softening agent dioctyl sebacate of 2.5wt% (Hangzhou Jesse blocks Chemical Co., Ltd.), the hydrolysis-resisting agent two (2 of 1wt%, 6 diisopropyl phenyls) carbodiimide (above sea cowry combination work company limited), the ultraviolet absorbers Tinuvin101 of 0.5wt% (Ciba special chemical article company).
In the mixed solvent of the thermoplastic polyurethane waste material in modified formula is water-soluble and acetone (volume ratio 1: 1), then add alkaline catalysts, be specially sodium hydroxide, be specially sodium hydroxide, wherein the ratio of sodium hydroxide and water and acetone cumulative volume is 10mol: 100L, under base catalysis condition, in 80 ℃ of controlled hydrolysis 2h, then remove desolventizing.Again hydrolysate and other components are added to SBS modifying asphalt (the SBS volume 5% that has been heated to 160 ℃ in proportion successively, SBS trade mark LG411, LG chemistry) in, the addition of anti-rut agent accounts for 3% of SBS modifying asphalt, mixed refining process 4h at 160 ℃, then be cooled to room temperature, obtain bituminous material.After tested, the softening temperature of bituminous material prepared by the present embodiment is 84.2 ℃, and 5 ℃ of ductilities are 29cm, and 60 ℃ of dynamic stabilities of compound are 14600 times/mm.
Embodiment 3
The formula of the present embodiment anti-rut agent is as follows: the polyethylene industrial waste in embodiment 2 (Ningbo plastic molding and processing plant, number-average molecular weight is 50000～100000) is replaced with polypropylene industrial waste material (number-average molecular weight is 50000～100000).Other components are constant, and preparation method is constant.After tested, adopting the SBS modifying asphalt softening temperature of the present embodiment anti-rut agent modification is 85.1 ℃, and 5 ℃ of ductilities are 27cm, and 60 ℃ of dynamic stabilities of compound are 14900 times/mm.
Embodiment 4:
The formula difference from Example 2 of the present embodiment anti-rut agent is, the SBS modifying asphalt of modification is changed and does SBR modifying asphalt, and the adding proportion of anti-rut agent is constant, and preparation method is constant.After tested, adopting the SBR modifying asphalt softening temperature of this anti-rut agent modification is 78.4 ℃, and 5 ℃ of ductilities are 38cm, and 60 ℃ of dynamic stabilities of compound are 13400 times/mm.
Embodiment 5:
The present embodiment anti-rut agent formula difference from Example 3 is, the SBS modifying asphalt of modification is changed and does SBR modifying asphalt, and the adding proportion of anti-rut agent is constant, and preparation method is constant.After tested, adopting the SBR modifying asphalt softening temperature of this anti-rut agent modification is 80.2 ℃, and 5 ℃ of ductilities are 33cm, and 60 ℃ of dynamic stabilities of compound are 14100 times/mm.
To add the matrix pitch of anti-rut agent and the performance of SBS modifying asphalt and not add the matrix pitch of anti-rut agent and the performance of SBS modifying asphalt is carried out list contrast below:
The above-mentioned description to embodiment bituminous material performance is can have individual getting information about to the performance of this anti-rut agent for ease of those skilled in the art.Other not detailed technical indicators of listing all can meet the requirement of the ministerial standard JTG F40-2004 < < of the Ministry of Communications standard specification for construction and acceptance of highway asphalt pavement > >.
In the above-described embodiments, unless otherwise, described part and per-cent are by weight.Wherein the test of modifying asphalt softening temperature, ductility adopts respectively standard GB/T/T4507-1999, GB/T4508-1999 to carry out.The dynamic stability of asphalt, penetrative index adopt wheel tracking test to detect, and moulding, health and the test method of test test specimen are carried out according to the issuing standard JTJ052-2000 < of the Ministry of Communications < highway engineering pitch and Asphalt Mixture Experiment rules > >.
Softening temperature testing method is:
Be placed in shoulder or two horizontal pitch disks of taper brass billet, in heating medium, with certain speed heating, in every bitumen sheets, be equipped with a steel ball.The softening temperature of reporting for when sample, soften to make two be placed on steel ball whereabouts 25mm on pitch apart from time the mean value of temperature.
The testing method of ductility is:
The sample of fusing is injected to particular manufacturing craft, first cooling in room temperature, then put into the water-bath remaining under test temperature cooling, with hot cutter, prune and exceed the sample of mould, mould is relay to backwater and bathe, then through certain hour, then move on in ductility machine and test.Record pitch test specimen and with certain speed, be stretched at a certain temperature the length in when fracture.
The testing method of dynamic stability is:
Test temperature is 60 ℃, and wheel load is 0.7MPa.45min after on-test～60min calculates dynamic stability.Test specimen is with wheel roller-compaction, and long 300mm, wide 300mm, thick 50mm are plate-like.Adopt wheel rutting test machine to test.Trier tire is rubber solid tyre processed, and external diameter 200mm, takes turns wide 50mm, rubber bed thickness 15mm.While being 84 ± 4,60 ℃ during 20 ℃ of rubber hardnesses, be 78 ± 2.Experimental wheel travel distance is 230mm ± 10mm, and round rolling speed is 42 times/min ± 1 time/min.Before test, test specimen, together with die trial, is placed in the thermostatic chamber that reaches 60 ℃ ± 1 ℃ of test temperature, insulation 10h.On the position of not walking at the experimental wheel of test specimen, sticky thermocouple thermometer of note, controls test specimen temperature-stable at 60 ℃ ± 0.5 ℃.Then by test specimen together with die trial dislocation on the testing table of wheel rutting test machine, experimental wheel is at the central part of test specimen, it is consistent that its direction of travel and test specimen roll direction.Start rutting deformation self-registering instrument, starting characteristics test machine.The about 1h of test period, or maximum distortion while reaching 25mm till.During test, registering instrument records deformation curve and test specimen temperature automatically.
The measuring method of penetrative index:
Penetrative index adopts penetrometer test, and its standard pin is made by the stainless steel of the tempering of hardening, Rockwell hardness HRC54～60, surface roughness Ra 0.2 μ m～0.3 μ m, pin and iron total mass 2.5g ± 0.05g.By test requirements document, Water Tank with Temp.-controlled is adjusted to 25 ℃, keeps stable.Then sample is injected to sample-containing dish, the specimen height penetration number 10mm that should exceed the estimates, and cover sample-containing dish, with anti-fall ash.Then the sample-containing dish cooling 2h at 25 ℃ that fills sample is moved into standing 2h in Water Tank with Temp.-controlled (25 ℃ ± 0.1 ℃).Check penetrometer state, press experiment condition, add additional weight.The sample-containing dish of constant temperature is moved on the A-frame in the flat glass dish that water temperature is controlled at 25 ℃ ± 0.1 ℃, and water depth more than test specimen surface is no less than 10mm.On platform by the flat glass dish that fills sample as for penetrometer.Slowly put down pin connecting rod, needle point is contacted with specimen surface just.The leave behind pull bar of scale card, makes just to contact with pin connecting rod top, regulates pointer to be designated as zero.Start stopwatch, at pointer, just referring to the moment of 5s, with hand-tight pressure button, make the standard pin injection sample that automatically falls, through the specified time, stop pressing button that pin is stopped mobile; The scale card pull bar of leaving behind contacts with pin connecting rod top, reads dial needle reading; Same parallel experiment of sample 3 times.
Claims (9)
1. an anti-rut agent, is characterized in that the component that comprises following weight proportion:
Described urethane auxiliary agent is at least one of oxidation inhibitor, softening agent, hydrolysis-resisting agent, ultraviolet absorbers, water-removal agent and defoamer;
Described thermoplastic polyurethane is at least one in waste and old sole material, waste and old leather trunk material and waste and old suitcase material;
Described polyethylene or polypropylene are taken from industrial waste;
Described shoddy is waste tire rubber.
2. anti-rut agent according to claim 1, is characterized in that the component that comprises following weight proportion:
3. anti-rut agent according to claim 1 and 2, is characterized in that: described chainextender is TriMethylolPropane(TMP) and 4, the mixture of 4 '-diaminodiphenylmethane, and TriMethylolPropane(TMP) and 4, the weight ratio of 4 '-diaminodiphenylmethane is 1: 2～2: 1.
4. anti-rut agent according to claim 1 and 2, is characterized in that: the fineness of described shoddy is 50～80 orders.
5. anti-rut agent according to claim 4, is characterized in that: the fineness of described shoddy is 60 orders.
6. add a bituminous material for the anti-rut agent described in any one in claim 1 to 5, comprise anti-rut agent and pitch, it is characterized in that: described anti-rut agent accounts for 1%～20% of pitch gross weight.
7. bituminous material according to claim 6, is characterized in that: described anti-rut agent accounts for 2%～5% of pitch gross weight.
8. a preparation method for the bituminous material described in claim 6 or 7, is characterized in that comprising the steps:
1. in the mixed solvent of thermoplastic polyurethane is water-soluble and acetone, the volume ratio of water and acetone is 0.9～1.1: 1.1～0.9, under base catalysis condition, at 140 ℃～160 ℃, carry out catalytic hydrolysis 2h～3h, the ratio of described catalyzer and mixed solvent is 10mol: 100L;
2. by step, 1. hydrolysate and chainextender, polyethylene and/or polypropylene, shoddy, glass fibre and the urethane auxiliary agent of gained are made anti-rut agent according to proportioning, the anti-rut agent of preparation is added in pitch, anti-rut agent accounts for 1%～20% of pitch gross weight, mixed refining process 2h～3h at 150 ℃～180 ℃, be cooled to room temperature, obtain bituminous material.
9. preparation method according to claim 8, is characterized in that: described step 2. in, anti-rut agent accounts for 2%～5% of pitch gross weight.
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| CN104312179A (en) * | 2014-11-18 | 2015-01-28 | 吉林市城投筑路材料股份有限公司 | Anti-rut agent |
| CN104479376A (en) * | 2014-12-08 | 2015-04-01 | 重庆路面科技有限公司 | Rubber-plastic composite modified asphalt with stable thermal storage and preparation method thereof |
| CN104530730A (en) * | 2014-12-31 | 2015-04-22 | 无锡朴晟科技有限公司 | Modified asphalt reinforcing additive and application thereof |
| CN104592774A (en) * | 2015-01-15 | 2015-05-06 | 吴江华威特种油有限公司 | Road modified asphalt |
| CN106396501A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Anti-rutting asphalt mixture and preparation method thereof |
| CN107311507A (en) * | 2017-06-27 | 2017-11-03 | 常州奕轩纺织品有限公司 | A kind of type of resistance to heavy load anti-rut agent and preparation method thereof |
| CN113278298A (en) * | 2021-05-24 | 2021-08-20 | 张鹏军 | Asphalt formula and preparation device |
| CN115516001A (en) * | 2020-06-19 | 2022-12-23 | 巴斯夫欧洲公司 | Bituminous composition comprising as performance additives a mixture of isocyanates and plasticizers |
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| CN104312179A (en) * | 2014-11-18 | 2015-01-28 | 吉林市城投筑路材料股份有限公司 | Anti-rut agent |
| CN104312179B (en) * | 2014-11-18 | 2017-01-18 | 吉林市城投筑路材料股份有限公司 | Anti-rut agent |
| CN104479376A (en) * | 2014-12-08 | 2015-04-01 | 重庆路面科技有限公司 | Rubber-plastic composite modified asphalt with stable thermal storage and preparation method thereof |
| CN104479376B (en) * | 2014-12-08 | 2017-04-12 | 重庆路面科技有限公司 | Rubber-plastic composite modified asphalt with stable thermal storage and preparation method thereof |
| CN104530730A (en) * | 2014-12-31 | 2015-04-22 | 无锡朴晟科技有限公司 | Modified asphalt reinforcing additive and application thereof |
| CN104592774A (en) * | 2015-01-15 | 2015-05-06 | 吴江华威特种油有限公司 | Road modified asphalt |
| CN106396501A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Anti-rutting asphalt mixture and preparation method thereof |
| CN106396501B (en) * | 2015-11-27 | 2019-11-12 | 北京紫瑞天成科技有限公司 | A kind of asphalt of Rut resistance and preparation method thereof |
| CN107311507A (en) * | 2017-06-27 | 2017-11-03 | 常州奕轩纺织品有限公司 | A kind of type of resistance to heavy load anti-rut agent and preparation method thereof |
| CN115516001A (en) * | 2020-06-19 | 2022-12-23 | 巴斯夫欧洲公司 | Bituminous composition comprising as performance additives a mixture of isocyanates and plasticizers |
| CN113278298A (en) * | 2021-05-24 | 2021-08-20 | 张鹏军 | Asphalt formula and preparation device |
| CN115637051A (en) * | 2021-07-20 | 2023-01-24 | 云南昆明雨霸建筑防水材料有限公司 | Preparation method of high-viscoelasticity modified asphalt |
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