CN103756341A - High-toughness waste rubber asphalt and preparation method thereof - Google Patents
High-toughness waste rubber asphalt and preparation method thereof Download PDFInfo
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Abstract
The invention discloses high-toughness waste rubber asphalt. The high-toughness waste rubber asphalt comprises substrate asphalt, waste rubber powder, an activating agent, a nanometer toughening agent and a crosslinking agent. A preparation method of the high-toughness waste rubber asphalt comprises the following steps: heating the substrate asphalt for melting, adding the waste rubber powder, the activating agent, the nanometer toughening agent and the crosslinking agent in sequence, mixing and uniformly stirring to obtain an asphalt mixture; and performing the process treatment of high-speed colloid milling, high-speed shearing, crosslinking reaction, stability development and the like on the asphalt mixture in sequence to obtain the high-toughness waste rubber asphalt. The high-toughness waste rubber asphalt has the advantages of reasonable preparation process, low product price, lower storage temperature than products of the same type, aging resistance, high bonding performance and high low-temperature crack resistance, and the defect of limitation on the toughness of conventional modified asphalt used in a low-temperature environment is overcome.
Description
Technical field
The present invention relates to a kind of rubber asphalt and preparation method thereof, particularly relate to a kind of high tenacity waste old pitch and preparation method thereof.
Background technology
Economic development along with China, automotive industry has also obtained develop rapidly, the quantum of output sharp increase of waste old, and by 2013, Chinese waste tire quantity reached more than 300,000,000, approximately 1,500 ten thousand tons of gross weights, the utilization of resources of waste tire has become the problem that Chinese Government need to solve.Discarded tire pollutes the environment on the one hand, but he is also valuable resource., add sebific duct, adhesive tape, rubber overshoes and other rubber item, the annual waste old producing is over 2,000 ten thousand tons.Waste old recovery at present and comprehensive utilization mode are mainly to burn heat-dissipating and produce regenerated rubber, burn heat-dissipating processing waste old and can cause secondary pollution to air, and the reclaimed rubber that utilizes waste old to produce is of poor quality, in production process, pollute high, energy consumption is large.Therefore how effectively fully utilizing waste old, make its resource utilization, is the urgent task within the scope of the world today.
Adapt with the development of automotive industry, the road construction of China has also obtained huge achievement.By the end of the end of the year 2012, highway in China total kilometrage reaches 4,240,000 kilometers, wherein waits the construction of motorway to develop especially rapidly, and total kilometrage reaches 9.6 ten thousand kilometers, surpasses the U.S., is sure to occupy No. 1 in the world.Along with the grade of road construction improves constantly, the requirement of ground surface material also improves constantly, the quality of road construction significantly improves, particularly the bituminous pavement build aspect of motorway has formed a whole set of technology, design level and construction technology water flush with World Developed Countries, and oeverall quality and the use properties on road surface are good.
Yet, raising with regard to bituminous pavement quality is undivided with adopting modifying asphalt, tradition ordinary road pitch exists the problems such as poor durability, work-ing life are short, high temperature is prone to rut, low temperature is easy to crack, have a strong impact on the use properties of road, caused great economic waste and potential safety hazard.Adopt polymer modified asphalt to overcome the above problems to a certain extent, extend the life-span of bituminous pavement, yet the processing temperature of polymer modified asphalt is high, power consumption and pollution are large, the polymkeric substance price that the SBS of take is representative is high, and need a large amount of oil production monomer polymers to synthesize, cause huge energy consumption, thereby caused applying of polymer modified asphalt to be subject to restriction to a certain extent.
In recent years, waste rubber powder has progressed into domestic and international road staff's research vision for the research of road building technology.Analyze theoretically, using rubber powder of waste tire main component is natural rubber and synthetic rubber, also has sulphur, carbon black, silicon oxide, ferric oxide, the additives such as calcium oxide, these compositions are all good asphalt modifiers, joined in pitch, supporting through adding some special catalyzer and carrying out corresponding Technology again, can produce the remarkable high temperature performance that improves pitch, ageing resistance, anti-fatigue performance, the rubber modified asphalt of high tenacity, further prolonging service life of pavement, delayed reflex crack, alleviate the effects such as driving noise, not only be conducive to improve the pavement quality of highway in China, also realize save energy, resource regeneration, make valuable resource waste old there is the huge space that utilizes, this achievement is of great practical significance.
Granted publication number discloses a kind of rubber crumb modified asphalt and preparation method for the Chinese invention patent of CN 101265363B, bituminous, waste rubber powder, expanding material, dispersion agent in its formula, fully mix, high speed shear, fragmentation through certain hour, then put into hold-up vessel and grow after for some time, make product.Publication number is that the Chinese invention patent of CN 101362860A discloses a kind of Crumber rubber modified asphalt and production technique thereof, and Crumber rubber modified asphalt consists of (by weight): pitch 80-84%, waste Crumb rubber 16-20%, vulcanizing agent 0-0.1%, permeate agent 0-0.1%; First by pitch heat fused at 140-180 ℃ of temperature, then by proportioning, add stirring in above-mentioned heated bitumen to melt swollen vulcanizing agent, permeate agent and waste Crumb rubber, again at 190-210 ℃ of temperature in high-speed shearing machine high speed shear 15-60 minute, make Crumber rubber modified asphalt.These methods can turn waste into wealth, reduce and pollute, reduce product cost, enhance product performance and there is environmental benefit, yet the rubber modified asphalt that aforesaid method is produced belongs to traditional sense and technical modifying asphalt, it is in hot environment, and under high-load condition, high-temperature stability is challenged, and is subject to very large resistance in marketing.High tenacity rubber modified asphalt has overcome this defect, make rubber modified asphalt performance obtain increasing substantially, thereby make modifying asphalt and the performance of gathering materials also arrive very large raising, thereby solved the weather resistance of rubber modified mixes and the problem of high-temperature stability.
Summary of the invention
Primary and foremost purpose of the present invention is for the rubber modified asphalt of above-mentioned production, to belong to the hot environment of traditional sense and the existence of technical modifying asphalt, under high-load condition, high-temperature stability is challenged, the problem that is subject to very large resistance in marketing provides a kind of technique reasonable, cheap, high tenacity rubber modified asphalt of excellent property and preparation method thereof, high tenacity rubber modified asphalt of the present invention makes rubber modified asphalt performance obtain increasing substantially, thereby make modifying asphalt and the performance of gathering materials also arrive very large raising, the weather resistance of rubber modified mixes and the problem of high-temperature stability have been solved.
In order to achieve the above object, one aspect of the present invention provides a kind of high tenacity rubber modified asphalt, it is characterized in that, comprises matrix pitch, waste rubber powder, activator, nanometer toughner and linking agent.
Wherein, the weight part proportioning of described matrix pitch and waste rubber powder is (50-90): (10-40).
Particularly, described matrix pitch is selected from No. 90 road bitumens or No. 110 road bitumens; Meet or No. 110 road bitumens are all applicable to the present invention No. 90 of the bi tumenf orr oad technical requirements > > of JTG F40-2004 < < the Ministry of Communications.
Wherein, waste rubber powder is common commercially available, and particle diameter is 30-120 order, and moisture content < 5%, metal content < 0.4%, fiber, dust content < 1.5%.
Particularly, described activator is selected from special thiuram-disulfide, triallyl trimellitate, diethanolamine, cyanacrylate, Methyl disulfide is for amido zinc formate, light magnesium oxide, and activator of the present invention mainly plays a part waste rubber powder to activate, the S-S key of waste rubber powder is opened, the free radical that activator at high temperature produces can with waste rubber powder in combined with radical, can stop repolymerization after rubber molecule fracture, accelerate the activating velocity of waste rubber powder.
Wherein, described toughner is selected from nano-calcium carbonate, nano-graphite, nano zine oxide, nano aluminium oxide, nano zircite, nm-class boron nitride.Toughner of the present invention plays to waste rubber powder and pitch the effect that increases toughness, make lax network structure, increase toughness, in the reactivation process of accelerating waste rubber powder, the increase of toughness can make rubber modified asphalt of the present invention have the thermostability under good ductility, recovery of elasticity, low temperature properties anti-cracking performance and hot environment.
Wherein, described linking agent is selected from terpolycyantoamino-formaldehyde resin, acrylic resin, vinegar the third resin emulsion, two acrylimides, ethylene glycol bis acrylic ester, divinylbenzene (DVB).Linking agent of the present invention is for preventing that thereby pitch and rubber powder from producing in preservation process the quality that polymerization, segregation have guaranteed rubber modified asphalt better.
Particularly, the weight part proportioning of described activator, toughner, linking agent and waste rubber powder is (1-3): (0.3-6): (0.5-3.5): 100.
The present invention provides a kind of preparation method of high tenacity rubber modified asphalt on the other hand, comprises as follows step in sequence:
1) by after matrix pitch heat fused, add successively waste rubber powder, activator, toughner and linking agent, mixing and stirring, makes asphalt mixture;
2) asphalt is carried out asphalt mixture being carried out successively the art breading such as colloid mills, high speed shear, crosslinking reaction, stability growth successively again, make high tenacity waste old pitch.
Wherein, the temperature of step 1) mesostroma asphalt heating fusing is 140-180 ℃, and described matrix pitch is selected from No. 90 road bitumens or No. 110 road bitumens, and the particle diameter of described waste rubber powder is 30-120 order.
Particularly, the weight part proportioning of step 1) mesostroma pitch and waste rubber powder is (50-90): (10-40).
Wherein, described activator is selected from thiuram-disulfide, triallyl trimellitate, and diethanolamine, cyanacrylate, Methyl disulfide is for amido zinc formate, and light magnesium oxide is preferably thiuram-disulfide or diethanolamine.
Wherein, described toughner nano-calcium carbonate, nano carbon black, nano zine oxide, nano aluminium oxide, nano zircite, a kind of in nm-class boron nitride.
Wherein, described linking agent is selected from terpolycyantoamino-formaldehyde resin, acrylic resin, and, vinegar the third resin emulsion, two acrylimides, ethylene glycol bis acrylic ester, a kind of in divinylbenzene (DVB).
Particularly, the weight part proportioning of described activator, toughner, linking agent and waste rubber powder is (1-3): (0.3-6): (0.5-3.5): 100.
Wherein, step 2) in, asphalt mixture is continued to heat up and remain at 170-200 ℃ and carry out described high speed alternately mill, high speed shear processing, rotating speed is wherein 1800-2800 rev/min, and the time of high speed shear is 30-90 minute.
Step 2) asphalt mixture after replacing at a high speed mill, high speed shear processing is sent into reaction and grow tank, heating and the whipping appts of opening crosslinking reaction growth tank carry out described reaction growth processing, the temperature of wherein said heating is 160-180 ℃, the rotating speed of described stirring is 60-180 rev/min, and it is 60-120 minute that crosslinking reaction is grown the time of processing.
The present invention utilizes waste rubber powder to carry out modification to matrix pitch, and the physics chemical action that replaces mill, high speed shear effect and activator by high speed is opened the S-S bond structure of waste rubber powder, and produces certain living radical; Nanometer toughner makes waste rubber powder and pitch produce nano effect, and the sticky toughness of rubber modified asphalt obviously improves, thereby has guaranteed better the quality of rubber modified asphalt.
The present invention has the following advantages:
1, the present invention adopts waste rubber powder to carry out modification to matrix pitch, and waste old consumption is large, up to 10-40%, the performance index of modifying asphalt can reach the specification of quality of common high-polymer modified pitch, not only can turn waste into wealth, reduce and pollute, can also obviously reduce modified bitumen product cost;
2, rubber modified asphalt of the present invention adopts high-performance nano toughner, forms high tenacity rubber modified asphalt, has fundamentally solved the problem of high-temperature stability under rubber modified asphalt hot environment, high-load condition, and period of storage length is convenient to transportation;
3, the preparation technology of high tenacity rubber modified asphalt of the present invention is reasonable, and rubber modified asphalt indices all can reach the technical requirements in the < < of the Ministry of Communications rubber asphalt technological standard > >.
specific embodiment mode
Below in conjunction with specific embodiment, further describe the present invention, advantage and disadvantage of the present invention will be more clear along with description.But these embodiment are only exemplary, scope of the present invention are not formed to any restriction.It will be understood by those skilled in the art that lower without departing from the spirit and scope of the present invention and can the details of technical solution of the present invention and form be modified or be replaced, but these modifications and replacement all fall within the scope of protection of the present invention.
Matrix pitch in the present invention adopts No. 70, Dongming, Shandong road bitumen and No. 110 road bitumens of the East Sea, Zhenghai board; Waste rubber powder of the present invention is common commercially available, and particle diameter is 30-120 order, and moisture content < 5%, metal content < 0.4%, fiber, dust content < 1.5%.
Embodiment 1
1, according to following weight parts proportioning, get the raw materials ready:
| Matrix pitch (No. 70 road bitumens): | 89.5 parts |
| Waste rubber powder (60 order): | 10.0 parts |
| Activator (thiuram-disulfide): | 0.20 part |
| Nanometer toughner (nano carbon black): | 0.20 part |
| Linking agent (ethylene glycol bis acrylic ester): | 0.10 part |
2, preparation high tenacity rubber modified asphalt
Above-mentioned whole matrix pitches are placed in to high-temperature tank, are heated to after 150 ℃ of fusings, with pump is defeated, through measuring apparatus, deliver in the processing reactor with heating and heat insulation function; Above-mentioned whole waste rubber powder, activator, nanometer toughner and linking agent are delivered to processing reactor through gas meter transport device simultaneously, in processing reactor, matrix pitch and waste rubber powder, activator, nanometer toughner, linking agent are fully mixed, make mixture, wherein the weight part proportioning of matrix pitch and waste rubber powder is 59.5:10; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is 2:2:1:100;
Open the heating unit on processing reactor, when continuation heating makes the temperature of mixture heat up and remain on 200 ℃, supporting colloid mills, high-speed shearing machine after unlatching processing reactor, carries out colloid mills, high speed shear processing to mixture, obtains liquid material; Wherein the rotating speed of shears is 2000r/min, and shear time is 60 minutes;
With pump, liquid material is pumped into reaction and grow tank, open the whipping appts of growing tank, grow processing when liquid material is lowered the temperature and remain on 170 ℃, wherein whipping appts rotating speed is 100 r/min, churning time is 60 minutes, makes high tenacity rubber modified asphalt of the present invention;
By high tenacity rubber modified asphalt at 160 ℃ after heat fused, according to the penetration degree of T0604-2000 < < asphalt penetration test > > method testing rubber modifying asphalt, according to T0605-0993 < < bitumen ductility test > > method, measure the ductility of rubber modified asphalt, according to T0606-2000 < < bituminous softening-point test (ring and ball method) > > method, measure the softening temperature of rubber modified asphalt, according to T0662-200 < < pitch recovery of elasticity test method > >, according to T0625-200 < < asphalt viscosity test method > >, the results are shown in Table 1.
Embodiment 2
1, according to following weight parts proportioning, get the raw materials ready:
| Matrix pitch (No. 90 road bitumens): | 84.07 parts |
| Waste rubber powder (30 order): | 15.0 parts |
| Activator (diethanolamine): | 0.30 part |
| Nanometer toughner (nano-calcium carbonate) | 0.45 part |
| Linking agent (terpolycyantoamino-formaldehyde resin): | 0.18 part |
2, prepare waste old solid state modification pitch
Above-mentioned whole matrix pitches are placed in to high-temperature tank, are heated to after 160 ℃ of fusings, with pump is defeated, through measuring apparatus, deliver in the processing reactor with heating and heat insulation function; Above-mentioned whole waste rubber powder, activator, nanometer toughner and linking agent are delivered to processing reactor through gas meter transport device simultaneously, in processing reactor, matrix pitch and waste rubber powder, activator, nanometer toughner, linking agent are fully mixed, make mixture, wherein the weight part proportioning of matrix pitch and waste rubber powder is 84.07:15; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is 2:3:1.2:100;
Open the heating unit on processing reactor, when continuation heating makes the temperature of mixture heat up and remain on 200 ℃, supporting colloid mills, high-speed shearing machine after unlatching processing reactor, carries out colloid mills, high speed shear processing to mixture, obtains liquid material; Wherein the rotating speed of shears is 2800r/min, and shear time is 30 minutes;
With pump, liquid material is pumped into reaction and grow tank, open the whipping appts of growing tank, grow processing when liquid material is lowered the temperature and remain on 140 ℃, wherein whipping appts rotating speed is 180 r/min, churning time is 80 minutes, makes high tenacity rubber modified asphalt of the present invention;
By high tenacity rubber modified asphalt at 160 ℃ after heat fused, according to the penetration degree of T0604-2000 < < asphalt penetration test > > method testing rubber modifying asphalt, according to T0605-0993 < < bitumen ductility test > > method, measure the ductility of rubber modified asphalt, according to T0606-2000 < < bituminous softening-point test (ring and ball method) > > method, measure the softening temperature of rubber modified asphalt, according to T0662-200 < < pitch recovery of elasticity test method > >, according to T0625-200 < < asphalt viscosity test method > >, the results are shown in Table 1.
Embodiment 3
1, according to following weight parts proportioning, get the raw materials ready:
| Matrix pitch (No. 90 road bitumens): | 79.34 parts |
| Waste rubber powder (90 order): | 20.0 parts |
| Activator T(thiuram-disulfide) | 0.30 part |
| Nanometer toughner (nm-class boron nitride) | 0.20 part |
| Linking agent agent (vinegar the third resin emulsion): | 0.16 part |
2, prepare waste old solid state modification pitch
Above-mentioned whole matrix pitches are placed in to high-temperature tank, are heated to after 155 ℃ of fusings, with pump is defeated, through measuring apparatus, deliver in the processing reactor with heating and heat insulation function; Above-mentioned whole waste rubber powder, activator, nanometer toughner and linking agent are delivered to processing reactor through gas meter transport device simultaneously, in processing reactor, matrix pitch and waste rubber powder, activator, nanometer toughner, linking agent are fully mixed, make mixture, wherein the weight part proportioning of matrix pitch and waste rubber powder is 79.34:20; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is 1.5:1:0.8:100;
Open the heating unit on processing reactor, when continuation heating makes the temperature of mixture heat up and remain on 220 ℃, supporting colloid mills, high-speed shearing machine after unlatching processing reactor, carries out colloid mills, high speed shear processing to mixture, obtains liquid material; Wherein the rotating speed of shears is 1800r/min, and shear time is 90 minutes;
With pump, liquid material is pumped into reaction and grow tank, open the whipping appts of growing tank, grow processing when liquid material is lowered the temperature and remain on 180 ℃, wherein whipping appts rotating speed is 60 r/min, churning time is 90 minutes, makes high tenacity rubber modified asphalt of the present invention;
By high tenacity rubber modified asphalt at 150 ℃ after heat fused, according to the penetration degree of T0604-2000 < < asphalt penetration test > > method testing rubber modifying asphalt, according to T0605-0993 < < bitumen ductility test > > method, measure the ductility of rubber modified asphalt, according to T0606-2000 < < bituminous softening-point test (ring and ball method) > > method, measure the softening temperature of rubber modified asphalt, according to T0662-200 < < pitch recovery of elasticity test method > >, according to T0625-200 < < asphalt viscosity test method > >, the results are shown in Table 1.
Embodiment 4
1, according to following weight parts proportioning, get the raw materials ready:
| Matrix pitch (No. 90 road bitumens): | 73.1 parts |
| Waste rubber powder (120 order): | 25.0 parts |
| Activator (cyanacrylate): | 0.65 part |
| Nanometer toughner (nano aluminium oxide): | 1.00 part |
| Antioxidant (acrylic resin): | 0.25 part |
2, prepare waste old solid state modification pitch
Above-mentioned whole matrix pitches are placed in to high-temperature tank, are heated to after 160 ℃ of fusings, with pump is defeated, through measuring apparatus, deliver in the processing reactor with heating and heat insulation function; Above-mentioned whole waste rubber powder, activator, nanometer toughner and linking agent are delivered to processing reactor through gas meter transport device simultaneously, in processing reactor, matrix pitch and waste rubber powder, activator, nanometer toughner, linking agent are fully mixed, make mixture, wherein the weight part proportioning of matrix pitch and waste rubber powder is 73.1:25; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is 2.6:4:1:100;
Open the heating unit on processing reactor, when continuation heating makes the temperature of mixture heat up and remain on 180 ℃, supporting colloid mills, high-speed shearing machine after unlatching processing reactor, carries out colloid mills, high speed shear processing to mixture, obtains liquid material; Wherein the rotating speed of shears is 2500r/min, and shear time is 50 minutes;
With pump, liquid material is pumped into reaction and grow tank, open the whipping appts of growing tank, grow processing when liquid material is lowered the temperature and remain on 160 ℃, wherein whipping appts rotating speed is 80 r/min, churning time is 40 minutes, makes high tenacity rubber modified asphalt of the present invention;
By high tenacity rubber modified asphalt at 140 ℃ after heat fused, according to the penetration degree of T0604-2000 < < asphalt penetration test > > method testing rubber modifying asphalt, according to T0605-0993 < < bitumen ductility test > > method, measure the ductility of rubber modified asphalt, according to T0606-2000 < < bituminous softening-point test (ring and ball method) > > method, measure the softening temperature of rubber modified asphalt, according to T0662-200 < < pitch recovery of elasticity test method > >, according to T0625-200 < < asphalt viscosity test method > >, the results are shown in Table 1.
Embodiment 5
Except getting the raw materials ready according to following weight parts proportioning:
| Matrix pitch (No. 110 road bitumens): | 68.4 parts |
| Waste rubber powder (60 order): | 30.0 parts |
| Activator (light magnesium oxide): | 0.90 part |
| Nanometer toughner (nano zine oxide): | 0.25 part |
| Linking agent agent (divinylbenzene (DVB)): | 0.45 part |
Wherein the weight part proportioning of matrix pitch and waste rubber powder is 68.4:30; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is outside 3:0.5:1.5:100, and all the other are all identical with embodiment 1;
High tenacity rubber modified asphalt is measured at 140 ℃ to the technical indicator of modifying asphalt after heat fused, be the results are shown in Table 1.
Embodiment 6
Except getting the raw materials ready according to following weight parts proportioning:
| Matrix pitch (No. 110 road bitumens): | 62.62 parts |
| Waste rubber powder (80 order): | 35.0 parts |
| Activator (triallyl trimellitate): | 0.63 part |
| Softening agent (nano zine oxide): | 1.26 part |
| Antioxidant (two acrylimide): | 0.49 part |
Wherein the weight part proportioning of matrix pitch and waste rubber powder is 62.62:35; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is outside 1.8:3.6:1.4:100, and all the other are all identical with embodiment 1;
High tenacity rubber modified asphalt is measured at 155 ℃ to the technical indicator of modifying asphalt after heat fused, be the results are shown in Table 1.
Embodiment 7
Except getting the raw materials ready according to following weight parts proportioning:
| Matrix pitch (No. 110 road bitumens): | 58.12 parts |
| Waste rubber powder (100 order): | 40.0 parts |
| Activator (cyanacrylate) | 0.48 part |
| Nanometer toughner (nano zircite) | 1.00 part |
| Linking agent (ethylene glycol bis acrylic ester): | 0.40 part |
Wherein the weight part proportioning of matrix pitch and waste rubber powder is 58.12:40; The weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is outside 1.2:2.5:1:100, and all the other are all identical with embodiment 1;
High tenacity rubber modified asphalt is measured at 165 ℃ to the technical indicator of modifying asphalt after heat fused, be the results are shown in Table 1.
The technical indicator of table 1 high tenacity rubber modified asphalt
By table 1 result, shown:
Adopt rotary viscosity, penetration degree, softening temperature, ductility, the recovery of elasticity indices of the high tenacity rubber modified asphalt that formula of the present invention and preparation method produce all to reach the technical requirements in the < < of the Ministry of Communications rubber asphalt technological standard > >, high tenacity rubber modified asphalt high-temperature stability, crack resistance at low-temperature are good.
All simple distortion of making in the situation that not departing from core of the present invention or modification all fall into protection scope of the present invention.
Claims (10)
1. a high tenacity waste old pitch, is characterized in that, comprises matrix pitch, waste rubber powder, activator, nanometer toughner and linking agent.
2. high tenacity waste old pitch as claimed in claim 1, is characterized in that, the weight part proportioning of described matrix pitch and waste rubber powder is 30-90:10-40.
3. high tenacity waste old pitch as claimed in claim 1, is characterized in that, described activator is selected from thiuram-disulfide, triallyl trimellitate, diethanolamine, cyanacrylate, Methyl disulfide is for amido zinc formate, one or more in light magnesium oxide.
4. high tenacity waste old pitch as claimed in claim 1, is characterized in that, described nanometer toughner is selected from nano-calcium carbonate calcium powder, Nano graphite powder, nano zinc oxide powder, nano alumina powder, nano oxidized zirconium powder, one or more in nm-class boron nitride powder.
5. high tenacity waste old pitch as claimed in claim 1, is characterized in that, described linking agent is terpolycyantoamino-formaldehyde resin, acrylic resin, vinegar the third resin emulsion, two acrylimides, ethylene glycol bis acrylic ester, one or more of divinylbenzene.
6. as the high tenacity waste old pitch as described in arbitrary in claim 1 to 5, it is characterized in that, the weight part proportioning of described activator, nanometer toughner, linking agent and waste rubber powder is 1-3:0.3-6:0.5-3.5:100.
7. a preparation method for high tenacity waste old pitch, is characterized in that, comprises the following steps successively:
A) by after matrix pitch heat fused, add successively waste rubber powder, activator, nanometer toughner and linking agent, be uniformly mixed, make asphalt mixture;
B) asphalt mixture is carried out successively to the high tenacity waste old asphaltic products. of the art breading systems such as colloid mills, high speed shear, crosslinking reaction, stability growth.
8. the preparation method of high tenacity waste old pitch as claimed in claim 7, is characterized in that steps A) temperature of mesostroma asphalt heating fusing is 140-180 ℃, the weight part proportioning of matrix pitch and waste rubber powder is 50-90:10-40.
9. the preparation method of high tenacity waste old pitch as claimed in claim 7, it is characterized in that, step B) in, asphalt mixture continued to heat up and remain on the colloid mills described in carrying out at 170-200 ℃, high speed shear is processed, wherein colloid mills and high-speed shearing machine coordinated operation, its rotating speed is 1800-2800 rev/min, and the time of high speed shear is 30-90 minute.
10. the preparation method of high tenacity waste old pitch as claimed in claim 7, it is characterized in that, step B) will be through colloid mills in, asphalt mixture after high speed shear is lowered the temperature and is remained on and at 160-180 ℃, carries out described crosslinking reaction and process, in crosslinking reaction treating processes, carry out mechanical stirring, wherein controlling the rotating speed stirring is 60-180 rev/min, and the time that crosslinking reaction is processed is 60-120 minute.
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| CN106957535A (en) * | 2017-04-25 | 2017-07-18 | 镇江越辉市政工程有限公司 | Rubber powder modified asphalt and preparation method thereof |
| CN107200511A (en) * | 2017-05-19 | 2017-09-26 | 同济大学 | Nano material modified rubber asphalt and preparation method thereof |
| CN105985060B (en) * | 2015-02-10 | 2018-10-30 | 鄂尔多斯市紫瑞天成工贸有限公司 | A kind of asphalt and preparation method thereof prepared using coal directly-liquefied residue |
| CN105985655B (en) * | 2015-02-10 | 2019-01-04 | 北京紫瑞天成科技有限公司 | A kind of asphalt mixture additive and preparation method thereof using coal directly-liquefied residue preparation |
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| CN109678397A (en) * | 2019-01-19 | 2019-04-26 | 江苏盛达飞建筑材料有限公司 | Reclaimed asphalt mixture and preparation method thereof |
| CN112457679A (en) * | 2020-11-24 | 2021-03-09 | 北京路德永泰环保科技有限公司 | High-performance rubber asphalt and preparation method thereof |
| CN113897836A (en) * | 2021-09-29 | 2022-01-07 | 陕西交通职业技术学院 | Nano toughened rubber asphalt open road surface structure and construction method thereof |
| CN114685121A (en) * | 2022-04-11 | 2022-07-01 | 山东仝聚建筑节能科技有限公司 | Composite mortar and production process thereof |
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| CN107200511A (en) * | 2017-05-19 | 2017-09-26 | 同济大学 | Nano material modified rubber asphalt and preparation method thereof |
| CN109337388A (en) * | 2018-09-04 | 2019-02-15 | 河南万里路桥工程有限公司 | A kind of nano-rubber powder-modified asphalt |
| CN109678397A (en) * | 2019-01-19 | 2019-04-26 | 江苏盛达飞建筑材料有限公司 | Reclaimed asphalt mixture and preparation method thereof |
| CN112457679A (en) * | 2020-11-24 | 2021-03-09 | 北京路德永泰环保科技有限公司 | High-performance rubber asphalt and preparation method thereof |
| CN113897836A (en) * | 2021-09-29 | 2022-01-07 | 陕西交通职业技术学院 | Nano toughened rubber asphalt open road surface structure and construction method thereof |
| CN114736529A (en) * | 2022-03-31 | 2022-07-12 | 山东高速路用新材料技术有限公司 | High-content rubber modified asphalt based on activated rubber powder and preparation method and application thereof |
| CN114685121B (en) * | 2022-04-11 | 2023-02-28 | 山东仝聚建筑节能科技有限公司 | Composite mortar and production process thereof |
| CN114685121A (en) * | 2022-04-11 | 2022-07-01 | 山东仝聚建筑节能科技有限公司 | Composite mortar and production process thereof |
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