CN102140253A - Special low-viscosity easy-dispersion regenerant for modified asphalt and preparation method thereof - Google Patents
Special low-viscosity easy-dispersion regenerant for modified asphalt and preparation method thereof Download PDFInfo
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Abstract
The invention provides a special low-viscosity easy-dispersion regenerant for modified asphalt and a preparation method thereof. The regenerant comprises the following components in parts by weight: 80-100 parts of regeneration composition, 1.0-10 parts of vulcanizer, 0.5-10 parts of accelerator, 1-10 parts of activating agent, 0-5 parts of anti-reducing agent, 0.1-2 parts of scorch retarder and 0.1-3 parts of antioxidant. The invention also discloses the preparation method of the asphalt regenerant. The processing steps comprises: a, pre-heating a reaction kettle, slowly adding the regeneration composition weighed in proportion into the reaction kettle, gradually heating to 40-100 DEG C and continuously stirring; b, putting the vulcanizer weighed in proportion into the reaction kettle, continuing to heat until the temperature is 50-130 DEG C, accelerating the stirring speed until the vulcanizer is evenly dispersed; c, continuing to rapidly stir and gradually cooling, as well as adding the scorch retarder and the antioxidant which are weighed in proportion in the process of stirring and cooling; and d, while cooling to 20-60 DEG C, adding the activating agent, the anti-reducing agent and the accelerator which are weighed in proportion, evenly stirring, and cooling to room temperature so as to obtain the special low-viscosity easy-dispersion regenerant product for the modified asphalt. The low-viscosity easy-dispersion regenerant has the characteristics of available raw material, simple preparation process and sustainable development, and meets green ecology.
Description
Technical field
The present invention relates to the road pavement material, particularly be a kind of low viscous, easy dispersive, be adapted to regenerator of road waste modifying asphalt and preparation method thereof.
Background technology
Compare with plain asphalt, modifying asphalt has better pavement performance, and the road surface of laying with it has favorable durability, resistance to abrasion, has realized that high temperature is not softening, and low temperature does not ftracture, and has therefore obtained widespread use in increasing road engineering.The preparation of modifying asphalt has several different methods, comprise chemical modification, physically modified etc., commonly used at present is to improve the bituminous performance by adding properties-correcting agent, styrene-butadiene-styrene block copolymer (SBS) properties-correcting agent is the most widely used asphalt modifier in the present world wide, and the SBS modifying asphalt has occupied dominant position in China.
But that comes in studies show that, in the life-time service process of bituminous pavement, modifying asphalt is the same with plain asphalt all problem of aging can to occur, thereby influences its pavement performance.Modifying asphalt aging, not only matrix pitch itself takes place to wear out, and SBS properties-correcting agent wherein also reactions such as oxidation, cracking can take place, thereby loses the effect of its modification gradually.Relevant scholar's research has been done relevant research, and modifying asphalt is worn out in film rotary oven (RTFOT), and behind the 200min, the low-temperature ductility of modifying asphalt (5 ℃) is almost 0, shows SBS properties-correcting agent complete failure.
China is being faced with annual nearly ten million ton waste and old modified asphalt mixture at present, these compounds have not only consumed a large amount of high-quality asphalts, properties-correcting agent and stone material when initial the generation, also consumed simultaneously a large amount of energy, if it is it is directly discarded, not only cause a large amount of wastes, also can further produce new environmental pollution simultaneously.Therefore based on the basic concept of Sustainable development and environment protection, the regeneration of modified asphalt mixture is imperative.And heat regeneration is the asphalt pavement regeneration method that is most widely used in the world at present, and it has not only saved ample resources, the energy, and the regenerated bituminous pavement has good pavement performance, is a kind of proven technique in the world.
Southeast China University's traffic institute is once to the aged modified asphalt mixture, the asphalt that adds common regenerator carries out the rut performance study, the result shows the aged modifying asphalt, because ageing of asphalt hardening, therefore still has rutting resistance preferably, dynamic stability is 4800 times/mm, and the dynamic stability that adds the asphalt of common regenerator only has 2800 times/mm, though as seen common regenerator can recover bituminous performance index (softening temperature, indexs such as penetration degree), but reduced the rutting resistance of asphalt significantly, as seen common regenerator can not satisfy the regeneration requirement of modifying asphalt, therefore develops a kind of road that is adapted to and reclaims very necessity and urgent of the special-purpose regenerator of modifying asphalt.
At present, both at home and abroad in the process of reclaimed bituminous pavement, a lot of engineerings are added petroleum resin, properties-correcting agent, and other anti-rut agent etc., with performances such as the anti-rut that improves reclaimed bituminous pavement and cracking resistances, but petroleum resin improve the pavement performance of regeneration asphalt or improve DeGrain, and the subject matter that properties-correcting agent or anti-rut agent exist is difficulties in dispersion, therefore often make that the performance of reclaimed bituminous pavement is unsatisfactory.
And employing sulfuration method, low being easy to of the viscosity of material that uses disperseed, and the aging cracked properties-correcting agent in the modifying asphalt and some the saturated and unsaturated composition in the pitch vulcanized, make the regeneration asphalt material form the space three-dimensional reticulation, to reach the purpose that improves the reclaimed bituminous pavement performance.
Summary of the invention
The present invention relates to special-purpose regenerator of the easy dispersive modifying asphalt of a kind of low viscosity and preparation method thereof, related in particular to a kind of viscosity low, be easy to dispersive and be applicable to waste and old modifying asphalt, and can effectively improve bitumen regenerant and the preparation method method thereof of waste and old modified asphalt mixture high-temperature stability and low-temperature cracking-resistance.The present invention is formulated by following components by weight parts: 80 ~ 100 parts of regeneration components; 1.0 ~ 10 parts of vulcanizing agents; 0.5 ~ 10 part of promotor; 1 ~ 10 part in activator; 0 ~ 5 part of anti-reductive agent; 0.1 ~ 2 part of scorch retarder; 0.1 ~ 3 part in oxidation inhibitor.
Above-mentioned regeneration component is, but be not limited thereto the mixture of the arbitrary proportion of one or more in petroleum residual oil, normal vacuum distillate, furfural extract oil, fluid catalytic cracking decant oil, lubricant base, high boiling point aromatic hydrocarbon solvent oil, the aromatic hydrocarbons wet goods.
Above-mentioned vulcanizing agent comprises sulphur, sulfur donor, non-sulfur system vulcanizing agent etc., and non-sulfur system vulcanizing agent comprises peroxide, resene, quinones, amine etc.Vulcanizing agent is specially, but be not limited thereto, 4,4 '-dithio morpholine (DTDM), the polysulfide of fatty ether, alkyl phenol disulfide, zinc peroxide, dicumyl peroxide (DCP), benzoyl peroxide (BPO), peroxidation (2, the 4-dichloro-benzoyl) (DCBP), di-t-butyl peroxide (DTBP), 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane (two 2S), draw together resol, p tert butylphenol formaldehyde resin (101 resin), octyl phenol sulfuration resin, tert-octyl phenol formaldehyde resin (202 resin), the para-chlorophenol formaldehyde resin, paraquinonedioxime, to DBQD (DBQD), poly-to nitrosobenzene, Triethylenetetramine (TETA), N, a N '-phenyl-bismaleimide (MPBM), four ethylidene tetramines, hexamethylene-diamine, N, N '-two furfurylidenes-1, the 6-ethylene diamine, cupric salicylimide, 3, the mixture of one or more arbitrary proportions in 3 '-diaminodiphenylmethane etc.
Above-mentioned promotor comprises classes such as thiazoles, sulfenamide, thiurams, dithiocarbamate(s), guanidine class, Thiourea, xanthogenic acid salt and aldehyde amines.Promotor is specially, but be not limited only to this, 2-dredges basic benzothiazole (M), dibenzothiazyl disulfide (DM), 1, two (benzothiazole-2-sulphomethyl) ureas of 3-, 2-sulfhydryl thiazole quinoline (2-MT), N-diethyl-2-benzothiazole-sulfenamide (AZ), N tert butyl benzothiazole 2 sulfenamide (NS), N cyclohexyl 2 benzothiazole sulfenamide (CBS/CZ), N oxydiethylene 2 benzothiazole sulfenamide (NOBS), N-dicyclohexyl-2-[4-morpholinodithio sulphenamide (DZ), tetramethylthiuram monosulfide (TMTS), tetramethyl-thiuram disulfide (TMTD), tetraethylthiuram disulfide (TETD), tetrabutylthiuram disulfide (TBTD), dimethylthiuram disulfide, the two five methyne thiurams (PTD) of curing, tetramethylthiuram tetrasulfide (TMTT), ziram (PZ), zinc diethyldithiocarbamate (EZ), zinc dibutyl dithiocarbamate (BZ), there is not this zine dimethyldithiocarbamate (ZP), zinc-ethylphenyl dithiocarbamate (PX) etc.Guanidine class, Thiourea, xanthogenic acid salt and aldehyde amines specifically comprise, but be not limited only to this, vulkacit D (DPG), di-o-tolylguanidine (DOTG), ethylene thiourea (NA-22), N, the mixture of N '-diethyl thiourea (DETU), Good-Rite Nix (SIP), Good-Rite Nix (ZIP), hexamethylenetetramine (H), aldamine one or more arbitrary proportions wherein such as (AA).
Above-mentioned promoting agent is the mixture of one or more arbitrary proportions in zinc oxide and the stearic acid.
Above-mentioned anti-reductive agent is, but be not limited only to this, hexa-methylene-1, the two Sulfothiorine dihydrates, 1 of 6-, two (citraconoyl iminomethyl) benzene of 3-, two (triethoxyl silane propyl group) tetrasulfide, dialkyl group are waited until any in the compounds such as zinc phosphate, esters of acrylic acid, acid imide more.
Above-mentioned scorch retarder is, but be not limited only to this, organic acid, nitroso compound and sulfenamide, specifically comprise Tetra hydro Phthalic anhydride, phenylformic acid, Whitfield's ointment, N nitrosodiphenyl amine NA, N-nitroso-group-2,2, one or more the mixture of arbitrary proportion wherein such as 4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance, N-cyclohexylthiophthalimide CTP, N-morpholine sulfo-phthalic imidine MTP etc.
Above-mentioned oxidation inhibitor is, but be not limited thereto, N-sec.-propyl-N'-phenyl-Ursol D (4010NA), N-(1, the 3-dimethylbutyl)-N-diphenyl-para-phenylene diamine (4020), 2,2,4-trimethylammonium-1, the mixture of the arbitrary proportion of one or more in 2-dihyaroquinoline (RD), N-phenyl-1-naphthylamine (first), the N-phenyl-2-naphthylamines (fourth) etc.
Preparation method of the present invention comprises the steps:
A, preheating reactor slowly drop into the regeneration component that takes by weighing in proportion in the reactor, are heated to 40-100 ℃ and constantly stirring gradually.
B, the vulcanizing agent that will take by weighing are in proportion again put in this reactor, continue to be heated to 50-130 ℃, accelerate stirring velocity, are uniformly dispersed to vulcanizing agent.
C, continuation are stirred and cooling gradually fast, add the scorch retarder and the oxidation inhibitor of weighing in proportion in this process.
D, when being cooled to 20-60 ℃, add activator, anti-reductive agent and the promotor take by weighing in proportion, postcooling to the room temperature that stirs promptly get the easy dispersive modifying asphalt special use of low viscosity regenerator product.
Beneficial effect:Because regenerator provided by the invention does not directly incorporate polymer substances such as petroleum resin, SBS, but introduce vulcanization system, therefore have characteristics such as viscosity is low, easy dispersion.Simultaneously, the vulcanization system of introducing can be with aging cracked properties-correcting agent in the modifying asphalt that wears out, and some the saturated and undersaturated composition in the pitch vulcanizes, and produces three-dimensional net structure, can effectively improve the high-temperature stability and the crack resistance at low-temperature of reclaimed asphalt mixture.And the present invention has also that starting material are easy to get, preparation technology is simple, meet characteristics such as green ecological and Sustainable development.
Embodiment
The special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity of the present invention is joined by following components by weight parts and is formed:
80 ~ 100 parts of regeneration components;
1.0 ~ 10 parts of vulcanizing agents;
0.5 ~ 10 part of promotor;
1 ~ 10 part in activator;
0 ~ 5 part of anti-reductive agent;
0.1 ~ 2 part of scorch retarder;
0.1 ~ 3 part in oxidation inhibitor.
Described regeneration component is one or more the mixture of arbitrary proportion in petroleum residual oil, normal/vacuum distillate, furfural extract oil, fluid catalytic cracking decant oil, lubricant base or the high boiling point aromatic hydrocarbon solvent oil.
Described vulcanizing agent comprises sulphur, sulfur donor or non-sulfur system vulcanizing agent.
Described promotor comprises thiazoles, sulfenamide, thiurams, dithiocarbamate(s), guanidine class, Thiourea, xanthogenic acid salt or aldehyde amines.
Described activator is the mixture of one or more arbitrary proportions in zinc oxide or the stearic acid.
Described anti-reductive agent is a hexa-methylene-1, the two Sulfothiorine dihydrates, 1 of 6-, two (citraconoyl iminomethyl) benzene of 3-, two (triethoxyl silane propyl group) tetrasulfide, dialkyl group are waited until the mixture of any one or more arbitrary proportions in the compounds such as zinc phosphate, esters of acrylic acid or acid imide more.
Described oxidation inhibitor is N-sec.-propyl-N'-phenyl-Ursol D (4010NA), N-(1, the 3-dimethylbutyl)-N-diphenyl-para-phenylene diamine (4020), 2,2,4-trimethylammonium-1, the mixture of the arbitrary proportion of one or more in 2-dihyaroquinoline (RD), N-phenyl-1-naphthylamine (first), the N-phenyl-2-naphthylamines (fourth).
Described vulcanizing agent is specially: 4,4 '-dithio morpholine (DTDM), the polysulfide of fatty ether, alkyl phenol disulfide, zinc peroxide, dicumyl peroxide (DCP), benzoyl peroxide (BPO), peroxidation (2, the 4-dichloro-benzoyl) (DCBP), di-t-butyl peroxide (DTBP), 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane (two 2S), draw together resol, p tert butylphenol formaldehyde resin (101 resin), octyl phenol sulfuration resin, tert-octyl phenol formaldehyde resin (202 resin), the para-chlorophenol formaldehyde resin, paraquinonedioxime, to DBQD (DBQD), poly-to nitrosobenzene, Triethylenetetramine (TETA), N, a N '-phenyl-bismaleimide (MPBM), four ethylidene tetramines, hexamethylene-diamine, N, N '-two furfurylidenes-1, the 6-ethylene diamine, cupric salicylimide or 3, the mixture of one or more arbitrary proportions in 3 '-diaminodiphenylmethane.
Described promotor is specially, 2-dredges basic benzothiazole (M), dibenzothiazyl disulfide (DM), 1, two (benzothiazole-2-sulphomethyl) ureas of 3-, 2-sulfhydryl thiazole quinoline (2-MT), N-diethyl-2-benzothiazole-sulfenamide (AZ), N tert butyl benzothiazole 2 sulfenamide (NS), N cyclohexyl 2 benzothiazole sulfenamide (CBS/CZ), N oxydiethylene 2 benzothiazole sulfenamide (NOBS), N-dicyclohexyl-2-[4-morpholinodithio sulphenamide (DZ), tetramethylthiuram monosulfide (TMTS), tetramethyl-thiuram disulfide (TMTD), tetraethylthiuram disulfide (TETD), tetrabutylthiuram disulfide (TBTD), dimethylthiuram disulfide, the two five methyne thiurams (PTD) of curing, tetramethylthiuram tetrasulfide (TMTT), ziram (PZ), zinc diethyldithiocarbamate (EZ), zinc dibutyl dithiocarbamate (BZ), there is not this zine dimethyldithiocarbamate (ZP), zinc-ethylphenyl dithiocarbamate (PX) etc.Guanidine class, Thiourea, xanthogenic acid salt and aldehyde amines specifically comprise, but be not limited only to this, vulkacit D (DPG), di-o-tolylguanidine (DOTG), ethylene thiourea (NA-22), N, the mixture of one or more arbitrary proportions in N '-diethyl thiourea (DETU), Good-Rite Nix (SIP), Good-Rite Nix (ZIP), hexamethylenetetramine (H) or the aldamine (AA).
In following examples if no special instructions the stirring velocity of reactor be 100 rev/mins, fast stirring velocity is 200 rev/mins.
Embodiment 1
The preheating reactor, taking by weighing the 500g fluid catalytic cracking decant oil drops in the reactor, be heated to 100 ℃ while stirring, drop into 20g sulphur, accelerate stirring velocity and be heated to 120 ℃, to sulphur fusing and be uniformly dispersed, cooling gradually then, and add load weighted 1.5g Tetra hydro Phthalic anhydride and 10gN-sec.-propyl-N'-phenyl-Ursol D in the process once more, to being uniformly dispersed, adding 3g2-dredges basic benzothiazole, 25g zinc oxide and 15g stearic acid when temperature is reduced to 30 ℃, continues to be stirred to be uniformly dispersed, and is cooled to room temperature and promptly makes bitumen regenerant A.
Embodiment 2
The preheating reactor, taking by weighing 400g furfural extract oil and 100g high boiling point aromatic hydrocarbons 220# solvent oil drops in the reactor, be heated to 80 ℃ while stirring, drop into 11g sulphur and 1.5g zinc peroxide, accelerate stirring velocity and be heated to 110 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 2.5g Whitfield's ointment and 5g N-(1 in the process once more, the 3-dimethylbutyl)-the N-diphenyl-para-phenylene diamine, to being uniformly dispersed, when reducing to 25 ℃, temperature adds the 1.5g dibenzothiazyl disulfide, 0.5gN-cyclohexyl-2-[4-morpholinodithio sulphenamide, the 5g stearic acid, 5g 1, two (triethoxyl silane propyl group) tetrasulfides of two (citraconoyl iminomethyl) benzene of 3-and 5g continue to be stirred to and are uniformly dispersed, and are cooled to room temperature and promptly make bitumen regenerant B.
Embodiment 3
The preheating reactor, taking by weighing 450g petroleum residual oil and 50g high boiling point aromatic hydrocarbons 220# solvent oil drops in the reactor, be heated to 90 ℃ while stirring, drop into 4g dicumyl peroxide and 1gN, a N '-phenyl-bismaleimide, accelerate stirring velocity and be heated to 120 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 4g N nitrosodiphenyl amine and 2.5g 2 in the process once more, 2,4-trimethylammonium-1,2-dihyaroquinoline, to being uniformly dispersed, when reducing to 40 ℃, temperature adds the 5g N cyclohexyl 2 benzothiazole sulfenamide, 25g zinc oxide and 7.5g dialkyl group are waited until zinc phosphate more, continue to be stirred to be uniformly dispersed, and are cooled to room temperature and promptly make bitumen regenerant C.
Embodiment 4
The preheating reactor, taking by weighing the 500g lubricant base drops in the reactor, be heated to 100 ℃ while stirring, drop into the 10g paraquinonedioxime, accelerate stirring velocity and be heated to 115 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 5g N-cyclohexylthiophthalimide and 4g N-phenyl-1-naphthylamine in the process once more, to being uniformly dispersed, when reducing to 50 ℃, temperature adds 4g dibenzothiazyl disulfide DM, the 1g tetramethyl-thiuram disulfide, 35g zinc oxide, the 5g stearic acid, 10g dialkyl group polythio zinc phosphate continues to be stirred to and is uniformly dispersed, and is cooled to room temperature and promptly makes bitumen regenerant D.
Embodiment 5
The preheating reactor, taking by weighing the 500g furfural extract oil drops in the reactor, be heated to 60 ℃ while stirring, drop into 2.5g sulphur and 1g 4,4 '-dithio morpholine, accelerate stirring velocity and be heated to 90 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 2.5g N-morpholine sulfo-phthalic imidine and 12.5g N-phenyl-2-naphthylamines in the process once more, to being uniformly dispersed, when reducing to 45 ℃, temperature adds the 2.5g tetramethyl-thiuram disulfide, 25g zinc oxide, the 10g stearic acid, the 5g dialkyl group is waited until zinc phosphate and 2.5g hexa-methylene-1 more, the two Sulfothiorine dihydrates of 6-continue to be stirred to and are uniformly dispersed, and are cooled to room temperature and promptly make bitumen regenerant E.
Embodiment 6
The preheating reactor, taking by weighing 425g atmospheric distillate and 75g high boiling point 200# aromatic hydrocarbon solvent oil drops in the reactor, be heated to 70 ℃ while stirring, drop into 10g101 resin and 5g to DBQD, accelerate stirring velocity and be heated to 100 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 1.5g phenylformic acid in the process once more, 2gN-cyclohexylthiophthalimide and 7.5g N-(1, the 3-dimethylbutyl)-the N-diphenyl-para-phenylene diamine, to being uniformly dispersed, when reducing to 35 ℃, temperature adds the 2.5g tetrabutylthiuram disulfide, 1g ziram (PZ), 25g zinc oxide, 5g stearic acid and 5g dialkyl group are waited until zinc phosphate more, continue to be stirred to and be uniformly dispersed, be cooled to room temperature and promptly make bitumen regenerant F.
Embodiment 7
The preheating reactor, taking by weighing the 500g aromatic hydrocarbon oil drops in the reactor, be heated to 90 ℃ while stirring, drop into 7g sulphur and 5g octyl group sulfuration resin, accelerate stirring velocity and be heated to 115 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 3g N-nitroso-group-2,2,4-trimethylammonium-1 in the process once more, 2-dihyaroquinoline polymkeric substance, 7.5g N-sec.-propyl-N'-phenyl-Ursol D and 5g 2,2,4-trimethylammonium-1,2-dihyaroquinoline, to being uniformly dispersed, when reducing to 40 ℃, temperature adds the 2.5g N cyclohexyl 2 benzothiazole sulfenamide, the 1g tetraethylthiuram disulfide, 20g zinc oxide, 5g stearic acid and 12.5g dialkyl group are waited until zinc phosphate more, continue to be stirred to be uniformly dispersed, and are cooled to room temperature and promptly make bitumen regenerant G.
Embodiment 8
The preheating reactor, taking by weighing 450g furfural extract oil and 75g high boiling point 200# aromatic hydrocarbon solvent oil drops in the reactor, be heated to 85 ℃ while stirring, drop into 10g sulphur and 2.5g 4, the 4'-dithio morpholine, accelerate stirring velocity and be heated to 100 ℃, be uniformly dispersed to vulcanizing agent, cooling gradually then, and add load weighted 2.5g N-cyclohexylthiophthalimide in the process once more, 1.5g Whitfield's ointment, 5g N-(1, the 3-dimethylbutyl)-N-diphenyl-para-phenylene diamine and 7.5g2,2,4-trimethylammonium-1, the 2-dihyaroquinoline is to being uniformly dispersed, when reducing to 30 ℃, temperature adds 1.5g N oxydiethylene 2 benzothiazole sulfenamide (NOBS), the 2g zinc diethyldithiocarbamate, 25g zinc oxide, 5g stearic acid and 9g hexa-methylene-1, the two Sulfothiorine dihydrates of 6-continue to be stirred to and are uniformly dispersed, and are cooled to room temperature and promptly make bitumen regenerant H.
Comparative Examples 1
Comparative Examples 1 is compared with embodiment 2, does not add vulcanization system (comprising vulcanizing agent, promotor and activator) in the Comparative Examples 1.
The preheating reactor, taking by weighing 400g furfural extract oil and 100g high boiling point aromatic hydrocarbons 220# solvent oil drops in the reactor, be heated to 70 ℃ while stirring, add load weighted 2.5g Whitfield's ointment and 5g N-(1, the 3-dimethylbutyl)-the N-diphenyl-para-phenylene diamine, after being uniformly dispersed, lower the temperature gradually, when reducing to 25 ℃, temperature adds 5g 1, two (citraconoyl iminomethyl) benzene of 3-and two (triethoxyl silane propyl group) tetrasulfides of 5g, continue to be stirred to and be uniformly dispersed, be cooled to room temperature and promptly make contrast sample 1.
The fundamental property of several regenerators that table 1 makes for embodiments of the invention.
The fundamental property of table 1 regenerator
| Numbering | Regenerator A | Regenerator B | Regenerator C | Regenerator D | Regenerator E | Regenerator F | Regenerator G | Regenerator H |
| 60 ℃ of viscosity cSt | 325 | 209 | 246 | 287 | 302 | 291 | 315 | 257 |
| Flash-point (℃) | 243 | 224 | 229 | 236 | 251 | 242 | 229 | 240 |
| Viscosity ratio before and after the Thin Film Oven Test TFOT | 0.96 | 0.96 | 0.98 | 0.99 | 0.99 | 0.96 | 0.97 | 0.95 |
| Quality change (%) before and after the Thin Film Oven Test TFOT | 0.22 | 0.41 | 0.32 | 0.28 | 0.19 | 0.21 | 0.28 | 0.29 |
Table 2 is two kinds of regenerators that embodiment 2 and Comparative Examples 1 make, regenerate to having reclaimed waste and old modified asphalt mixture, the consumption unification of regenerator is 10%, the ratio of newly gathering materials with reclaimed materials is 50:50, the new SBS modifying asphalt that adds, newly add the pitch amount and be as the criterion with the best bitumen aggregate ratio of regulating, every performance index of reclaimed asphalt mixture are as shown in the table.
The performance of table 2 reclaimed asphalt mixture
| Technical indicator | Regenerator B | Contrast sample 1 |
| The volume of regenerator (%) | 10 | 10 |
| Old material ratio (%) | 60 | 60 |
| Bitumen aggregate ratio (%) | 4.3 | 4.0 |
| Voidage (%) | 4.8 | 4.8 |
| Stability (KN) | 18.5 | 12.6 |
| Flow valuve (mm) | 1.2 | 2.4 |
| Immersion residual stability (%) | 92.7 | 85.4 |
| Dynamic stability (inferior/mm) | 4600 | 2400 |
| Low-temperature bending stiffness modulus (MPa) | 1622.3 | 1807.5 |
Claims (10)
1. the special-purpose regenerator of the easy dispersive modifying asphalt of a low viscosity is characterized in that this regenerator is joined by following components by weight parts to form:
80 ~ 100 parts of regeneration components;
1.0 ~ 10 parts of vulcanizing agents;
0.5 ~ 10 part of promotor;
1 ~ 10 part in activator;
0 ~ 5 part of anti-reductive agent;
0.1 ~ 2 part of scorch retarder;
0.1 ~ 3 part in oxidation inhibitor.
2. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1, it is characterized in that described regeneration component is one or more the mixture of arbitrary proportion in petroleum residual oil, normal/vacuum distillate, furfural extract oil, fluid catalytic cracking decant oil, lubricant base or the high boiling point aromatic hydrocarbon solvent oil.
3. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1 is characterized in that described vulcanizing agent comprises sulphur, sulfur donor or non-sulfur system vulcanizing agent.
4. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1,, it is characterized in that
Described promotor comprises thiazoles, sulfenamide, thiurams, dithiocarbamate(s), guanidine class, Thiourea, xanthogenic acid salt or aldehyde amines.
5. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1 is characterized in that described activator is the mixture of one or more arbitrary proportions in zinc oxide or the stearic acid.
6. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1, it is characterized in that described anti-reductive agent is a hexa-methylene-1, the two Sulfothiorine dihydrates, 1 of 6-, two (citraconoyl iminomethyl) benzene of 3-, two (triethoxyl silane propyl group) tetrasulfide, dialkyl group are waited until the mixture of any one or more arbitrary proportions in the compounds such as zinc phosphate, esters of acrylic acid or acid imide more.
7. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 1, it is characterized in that described oxidation inhibitor is N-sec.-propyl-N'-phenyl-Ursol D (4010NA), N-(1, the 3-dimethylbutyl)-N-diphenyl-para-phenylene diamine (4020), 2,2,4-trimethylammonium-1, the mixture of the arbitrary proportion of one or more in 2-dihyaroquinoline (RD), N-phenyl-1-naphthylamine (first), the N-phenyl-2-naphthylamines (fourth).
8. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 3, it is characterized in that described vulcanizing agent is specially: 4,4 '-dithio morpholine (DTDM), the polysulfide of fatty ether, alkyl phenol disulfide, zinc peroxide, dicumyl peroxide (DCP), benzoyl peroxide (BPO), peroxidation (2, the 4-dichloro-benzoyl) (DCBP), di-t-butyl peroxide (DTBP), 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane (two 2S), draw together resol, p tert butylphenol formaldehyde resin (101 resin), octyl phenol sulfuration resin, tert-octyl phenol formaldehyde resin (202 resin), the para-chlorophenol formaldehyde resin, paraquinonedioxime, to DBQD (DBQD), poly-to nitrosobenzene, Triethylenetetramine (TETA), N, a N '-phenyl-bismaleimide (MPBM), four ethylidene tetramines, hexamethylene-diamine, N, N '-two furfurylidenes-1, the 6-ethylene diamine, cupric salicylimide or 3, the mixture of one or more arbitrary proportions in 3 '-diaminodiphenylmethane.
9. the special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity according to claim 4, it is characterized in that described promotor is specially, 2-dredges basic benzothiazole (M), dibenzothiazyl disulfide (DM), 1, two (benzothiazole-2-sulphomethyl) ureas of 3-, 2-sulfhydryl thiazole quinoline (2-MT), N-diethyl-2-benzothiazole-sulfenamide (AZ), N tert butyl benzothiazole 2 sulfenamide (NS), N cyclohexyl 2 benzothiazole sulfenamide (CBS/CZ), N oxydiethylene 2 benzothiazole sulfenamide (NOBS), N-dicyclohexyl-2-[4-morpholinodithio sulphenamide (DZ), tetramethylthiuram monosulfide (TMTS), tetramethyl-thiuram disulfide (TMTD), tetraethylthiuram disulfide (TETD), tetrabutylthiuram disulfide (TBTD), dimethylthiuram disulfide, the two five methyne thiurams (PTD) of curing, tetramethylthiuram tetrasulfide (TMTT), ziram (PZ), zinc diethyldithiocarbamate (EZ), zinc dibutyl dithiocarbamate (BZ), there is not this zine dimethyldithiocarbamate (ZP), zinc-ethylphenyl dithiocarbamate (PX) etc.Guanidine class, Thiourea, xanthogenic acid salt and aldehyde amines specifically comprise, but be not limited only to this, vulkacit D (DPG), di-o-tolylguanidine (DOTG), ethylene thiourea (NA-22), N, the mixture of one or more arbitrary proportions in N '-diethyl thiourea (DETU), Good-Rite Nix (SIP), Good-Rite Nix (ZIP), hexamethylenetetramine (H) or the aldamine (AA).
10. special-purpose regenerator of the easy dispersive modifying asphalt of low viscosity and preparation method thereof is characterized in that this preparation method comprises the steps:
A, preheating reactor slowly drop into the regeneration component that takes by weighing in proportion in the reactor, are heated to 40-100 ℃ and constantly stirring gradually.
B, the vulcanizing agent that will take by weighing are in proportion again put in this reactor, continue to be heated to 50-130 ℃, accelerate stirring velocity, are uniformly dispersed to vulcanizing agent.
C, continuation are stirred and cooling gradually fast, add the scorch retarder and the oxidation inhibitor of weighing in proportion in this process.
D, when being cooled to 20-60 ℃, add activator, anti-reductive agent and the promotor take by weighing in proportion, postcooling to the room temperature that stirs promptly get the easy dispersive modifying asphalt special use of low viscosity regenerator product.
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| CN103923474A (en) * | 2014-04-14 | 2014-07-16 | 沈阳志合科技有限公司 | Waste asphalt mixture improving agent |
| CN104017380A (en) * | 2014-06-23 | 2014-09-03 | 东营润丰博越石油技术有限公司 | Liquid modified asphalt stabilizer |
| CN104609771A (en) * | 2015-01-14 | 2015-05-13 | 江苏苏博特新材料股份有限公司 | Warm-mixing reclaiming agent and preparation method thereof |
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| CN104017380A (en) * | 2014-06-23 | 2014-09-03 | 东营润丰博越石油技术有限公司 | Liquid modified asphalt stabilizer |
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| CN106221108B (en) * | 2016-07-25 | 2018-10-19 | 国路高科（北京）工程技术研究院有限公司 | A kind of asphalt mixed material modifier particle and preparation method thereof |
| CN107936587A (en) * | 2017-11-13 | 2018-04-20 | 常州麒通国际贸易有限公司 | A kind of preparation method of bitumen regenerant |
| CN108110194A (en) * | 2017-12-29 | 2018-06-01 | 上海恩捷新材料科技股份有限公司 | A kind of peroxide crosslinking polymeric barrier films and preparation method thereof |
| CN109897390A (en) * | 2019-03-01 | 2019-06-18 | 张莉 | A kind of polymer modified asphalt and preparation method thereof |
| CN110969928A (en) * | 2019-12-23 | 2020-04-07 | 江门新时代胶粘科技有限公司 | High-temperature-resistant high-humidity-resistant medical sterilization label and preparation method thereof |
| CN110969928B (en) * | 2019-12-23 | 2021-10-12 | 广东新时代新材料科技有限公司 | High-temperature-resistant high-humidity-resistant medical sterilization label and preparation method thereof |
| CN114437770A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Process method for regenerating asphalt activator by using refined oil slurry |
| CN114437770B (en) * | 2020-10-19 | 2024-02-27 | 中国石油化工股份有限公司 | Process method for regenerating asphalt activator by utilizing refined oil slurry |
| CN112759936A (en) * | 2021-01-26 | 2021-05-07 | 醴陵市东方电瓷电器有限公司 | Silicone rubber umbrella skirt for extra-high voltage composite insulator and preparation method thereof |
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