CN1175050C - Asphalt composition with better storage stability and high-and low-temp performance and its preparing process - Google Patents
Asphalt composition with better storage stability and high-and low-temp performance and its preparing process Download PDFInfo
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- CN1175050C CN1175050C CNB011154918A CN01115491A CN1175050C CN 1175050 C CN1175050 C CN 1175050C CN B011154918 A CNB011154918 A CN B011154918A CN 01115491 A CN01115491 A CN 01115491A CN 1175050 C CN1175050 C CN 1175050C
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Abstract
The present invention relates to an asphalt composition with stable storage and good high temperature performance and low temperature performance, and a preparation method thereof. 64 to 99.6 wt% of asphalt stock is heated to 120 to 230 DEG C, and is orderly added with 0.1 to 7.0 wt% of polymer with low molecular weight, 0.1 to 7.0 wt% polymer with high molecular weight, 0.1 to 20 wt% of compatilizers and 0.01 to 2.0 wt% of stabilizers to react for 0.5 to 6 hours under the high shearing function. The upper softening point and the lower softening point have the difference which is smaller than or equal to 2.5 DEG C in the isolation test of the asphalt composition, the high temperature performance and the low temperature performance can be improved, and the preparation method is simple.
Description
The invention belongs to a kind of bituminous material composition and method of making the same, more particularly, is to belong to a kind of stable storing, polymer modified asphalt that high temperature performance is good and preparation method thereof.
As everyone knows, pitch is important urban road laying material, some performance of bituminous can be carried out modification and improves its performance by adding some superpolymer, as USP4,314,921 high speed shear colloidal mills by special use are dispersed in the pitch sub polyethylene to reach the purpose of improving asphalt performance, and pitch is after modification, and its anti-high and low temperature ability and resistance of aging obviously improve.But, stop shearing action after, dispersed polyethylene particulate is easily assembled in the pitch, causes polyethylene mutually and pitch layering mutually, can not standing storage, mix and stir at this method scene of being mainly used in.
USP5,348,994 provide a kind of polymer modified asphalt and preparation method thereof.This bituminous composition comprises sulfonated pitch, sulfonated polymers and alkaline neutraliser; Its preparation method is: polymkeric substance such as employing vinylbenzene-dienes are made properties-correcting agent, with solvent properties-correcting agent is dissolved earlier, and then the polymkeric substance sulfonation is obtained sulfonated polymers with sulphonating agent, simultaneously also with sulphonating agent with the pitch sulfonation, with sulfonated polymers and the blend of sulfonated pitch, obtain modified bitumen product with neutralizing agent neutralization at last, also can be earlier in sulfonated polymers and the blend more then of sulfonated pitch.The stability of product better, 160 ℃ store down 3～5 days not stratified, product top and the sampling of 1/3 place, bottom, the difference of softening temperature is no more than 4 ℃.But complex technical process to equipment and processing requirement strictness, and widely applies sulphonating agent easily environment to be polluted.
USP4,567,222 adopt block SBS to be added in the pitch, make coupling agent with polysulfide, produce the irreversible chemical key and improve bituminous force of cohesion and flexibility, improve under the asphalt high-temperature and deal with the rimose ability under the anti-rut and low temperature, must be made into mother liquor earlier, mix with pitch after with the dissolving of polymkeric substance and polysulfide with the normal vacuum distillate of crude oil again, need the lights removal in the mother liquor in the operating process later stage, the numerous and diverse relatively and light constituent that remove of process easily causes environmental pollution.
USP5,278,207 handle and to introduce multifarious functional group by vinylbenzene-diolefinic polymer being carried out activity, and these different functional groups are grafted on the polymkeric substance, increase the polarity and the reactivity of polymkeric substance, can improve polymkeric substance and bituminous consistency.Polymkeric substance after the modification and pitch blend can obtain excellent property and the good modifying asphalt of package stability.Because the singularity of its polymkeric substance makes it not have popularity.In case change the vinylbenzene-diolefinic polymer of non-modification into, then the performance of product and package stability just differ and are guaranteed surely.
In sum, the package stability of modifying asphalt be that modifying asphalt need solve emphatically also is the problem that must solve as can be seen, also is the difficult problem place of modifying asphalt simultaneously.Though above patent all provides the method for some solutions, certain limitation is also arranged, higher as complicated process of preparation to equipment requirements, or environment polluted, make its application be subjected to certain restriction.
One of purpose of the present invention provides a kind of stable storing, polymer-asphalt composition that high temperature performance is good.
Two of purpose of the present invention provides a kind of stable storing, polymer-asphalt composition preparation method that high temperature performance is good.
The polymer-asphalt composition of shelf-stable provided by the invention is formed the asphalt stock that comprises 64～99.6 heavy %, the low-molecular weight polymer of 0.1～7.0 heavy %, the high-molecular weight polymer of 0.1～7.0 heavy %, the compatilizer of 0.1～20 heavy % and the stablizer of 0.01～2 heavy %.
The used asphalt stock of the present invention is one or more the mixture that is selected from petroleum pitch, coal-tar pitch, oil sands bitumen and the rock asphalt, and wherein petroleum pitch is one or more the mixture that is selected from straight-run pitch, solvent deoiling pitch, oxidized bitumen and the mediation pitch.
The used polymkeric substance of the present invention is selected from vinylbenzene-conjugated diene binary or ternary block polymer, and cinnamic content is 20～40% in the block, and conjugated diolefine is divinyl or isoprene.Wherein low-molecular-weight polymericular weight (all molecular weight all are number-average molecular weights among the present invention, are gpc measurement with gel permeation chromatography) is 10,000～150,000, and primary structure is a line style; The high molecular weight polymers molecular weight is 150,000～500,000, and primary structure is star-like.
The used compatilizer of the present invention is for being rich in polarity gelationus petroleum fractions or compound, boiling point＞300 ℃, the mixture of one or more in the heavy distillate of being selected from nilox resin, containing sour Yatall MA, catalytically cracked oil, solvent treatment being extracted oil, refining naphthenic oil, preparing ethylene by steam cracking tar out.Compatilizer can impel polymkeric substance and pitch better compatible.These compatilizers finally become the part of modifying asphalt, and do not influence bituminous performance after the modification.
The used stablizer of the present invention is organo-peroxide, metal oxide, sulphur, vulcanization accelerator, Resins, epoxy, and these stablizers both can use separately, the use of also can arranging in pairs or groups.The use of stablizer can make polymkeric substance form crosslinked spacial framework in pitch, and part pitch is grafted on the network structure of polymkeric substance, stops separating of pitch phase and polymer phase, thus bituminous package stability after the increase modification.
The preparation method of the polymer-asphalt composition of shelf-stable provided by the invention is:
The asphalt stock of 64～99.6 heavy % is heated to 120～230 ℃ best 150～210 ℃, add the high molecular weight polymers of low-molecular-weight polymkeric substance, 0.1～7.0 heavy % of 0.1～7.0 heavy %, the compatilizer of 0.1～20 heavy % and the stablizer of 0.01～2 heavy % successively, under high shear forces, react 0.5～6 hour best 1～5 hour.
The used asphalt stock of the present invention is one or more the mixture that is selected from petroleum pitch, coal-tar pitch, oil sands bitumen and the rock asphalt, and wherein petroleum pitch is one or more the mixture that is selected from straight-run pitch, solvent deoiling pitch, oxidized bitumen and the mediation pitch.
The used polymkeric substance of the present invention is selected from vinylbenzene-conjugated diene binary or ternary block polymer, and cinnamic content is 20～40% in the block, and conjugated diolefine is divinyl or isoprene.Wherein low-molecular-weight polymericular weight is 10,000～150,000, and primary structure is a line style; The high molecular weight polymers molecular weight is 150,000～500,000, and primary structure is star-like.
The used compatilizer of the present invention is for being rich in polarity gelationus petroleum fractions or compound, boiling point＞300 ℃, the mixture of one or more in the heavy distillate of being selected from nilox resin, containing sour Yatall MA, catalytically cracked oil, solvent treatment being extracted oil, refining naphthenic oil, preparing ethylene by steam cracking tar out.Compatilizer can impel polymkeric substance and pitch better compatible.These compatilizers finally become the part of modifying asphalt, and do not influence bituminous performance after the modification.
The used stablizer of the present invention is organo-peroxide, metal oxide, sulphur, vulcanization accelerator, Resins, epoxy, and these stablizers both can use separately, the use of also can arranging in pairs or groups.The use of stablizer can make polymkeric substance form crosslinked spacial framework in pitch, and part pitch is grafted on the network structure of polymkeric substance, stops separating of pitch phase and polymer phase, thus bituminous package stability after the increase modification.
The present invention is mainly undertaken composite by the polymkeric substance of selecting different structure or different molecular weight for use, utilize the complementary action between their performances to prepare the polymer modified asphalt that has good stability.The performance of the polymkeric substance of different structure or molecular weight after to asphalt modification has bigger difference.Generally speaking, polymkeric substance that molecular weight is low and bituminous consistency are better, make the good modifying asphalt of package stability easily, and the bituminous low-temperature performance is better after the modification, show as modification after the bituminous low-temperature ductility big, but its high-temperature behavior is relatively poor relatively, bituminous softening temperature rising amplitude is little after showing as modification, such pitch generally is used for cold district, uses in the area of summer high temperature to be subjected to certain restriction, has bigger limitation.And obviously strengthen with its high-temperature resistance of pitch of the high polymer modification of molecular weight, bituminous softening temperature increasing degree is bigger after showing as modification, but because of polymericular weight and bituminous molecular weight differ too big, bad with the bituminous consistency, the dispersion instability of polymkeric substance in pitch is easy to assemble.Even under high shear forces, be dispersed into tiny particulate, in case stop shearing action, polymer particles is assembled at once mutually, form floss, cause separating of polymer phase and pitch phase, show as demixing phenomenon in appearance, the surface forms the dope that one deck is rich in polymkeric substance, even violent stirring again, also difficulty is uniformly dispersed again.The present invention then is that polymkeric substance molecular weight difference is big or that structure is different are composite, makes full use of the advantage of polymkeric substance on asphalt modification of different structure, and the two is taken into account, and preparation can be stablized storage and be had polymer modified asphalt applied widely again.
After the package stability of bituminous composition meant that composition is placed the regular hour at a certain temperature, phenomenon of phase separation did not take place in pitch in the composition and polymkeric substance.Characterizing method is as follows: bituminous composition is poured in the elongated pipe, 163 ± 5 ℃ place 48 hours after, get each 1/3 place of pipe top and bottom and survey its softening temperature, when softening temperature up and down poor≤2.5 ℃, just think that pitch and polymkeric substance are separated, bituminous composition is stable, and shelf characteric is good.
Bituminous composition good stability provided by the invention, show isolation test up and down softening temperature poor≤2.5 ℃; The high and low temperature performance improves simultaneously, shows that low-temperature ductility and softening temperature all are significantly improved, and can be suitable for various weather condition.Said composition also can be used as the roof with film, waterproof film except can be used as the urban road laying material, also can find purposes at aspects such as doing sealing material and heap caulking joint crack.The preparation method of said composition is simple, and less demanding to equipment do not need special equipment yet, both can be transported to the working-yard after the refinery produces, and also use on production limit in limit at the construction field (site), has bigger handiness.
The following examples will give further instruction to present method, but therefore not limit present method.Testing the character of used asphalt stock and polymkeric substance SBS distinguishes as shown in Table 1 and Table 2.
Comparative Examples 1
This Comparative Examples explanation high molecular SBS in pitch the dispersion situation and modification after the bituminous performance.
In 1 liter reactor, 80.8 parts of asphalt stock A are heated to 160 ℃, F411x type SBS (Maoming petro-chemical corporation production that adds 6 parts subsequently, Mn is 285,000,12 parts catalytically cracked oil and 1.2 parts sulphur down together),, mixed 60 minutes at 160 ℃ with high-shear mixer (Qidong, Jiangsu chemical industry equipment factory produces, and model is L100, down together).After mixing stops, it is even to can be observed asphalt surface, and does not have macroscopic particle, but the isolation test result of table 3 shows that the softening temperature difference is 30 ℃ up and down, obviously the dispersion of SBS in pitch is uneven, and the SBS in the pitch can the further layering with the prolongation of period of storage.Find also simultaneously that bituminous softening temperature (being 78.5 ℃) after the modification has been compared with asphalt stock A (softening temperature is 43.5 ℃) very significantly and improve, modification is described after the bituminous high-temperature behavior have significant improvement.
Comparative Examples 2
This Comparative Examples explanation lower molecular weight SBS in pitch the dispersion situation and modification after the bituminous performance.
Compare with Comparative Examples 1, this Comparative Examples only changes the SBS in the Comparative Examples 1 into the low YH791 type of molecular weight (Yueyang general petrochemicals factory produces, and Mn is 100,000, down together) by the higher F411x type of molecular weight, and the character of composition is listed in table 3.Test-results finds that the segregation softening temperature difference of sample only is 0.3 ℃, it is very stable to illustrate that low-molecular-weight SBS disperses in pitch, do not emanate, and 5 ℃ of ductility values of bituminous after the modification (for 90cm) and asphalt stock A (5 ℃ of ductilities＜5cm) are compared and are greatly improved, the bituminous low-temperature performance had significant improvement after modification was described, shortcoming is that bituminous softening temperature after the modification (being 48.4 ℃) is little with the amplitude that asphalt stock A (softening temperature is 43.5 ℃) compares increase, illustrate that its high-temperature behavior does not have great improvement, so limited its use in the hot area.
Embodiment 1
Present embodiment explanation the present invention is applicable to wide temperature applicable range and the good polymer-asphalt comosition of package stability with the composite preparation of the SBS of two kinds of different structures.
Compare with Comparative Examples 1, present embodiment only with the SBS in the Comparative Examples 1 by the F411x type reduce to 4 parts and add 2 parts of YH791 type SBS in addition by 6 parts, the character of composition is listed in table 3.Test-results finds that the segregation softening temperature difference of sample is 2.2 ℃, illustrate that the SBS after composite disperses more stable in pitch, do not emanate, and bituminous softening temperature (being 65 ℃) is compared also with Comparative Examples 2 (softening temperature is 48.4 ℃) and is greatly increased after the modification, 5 ℃ of ductilities (for 6cm) are compared with Comparative Examples 1 (5 ℃ of ductilities are 32cm) and also are improved to some extent simultaneously, this explanation is with different molecular weight, the modifying asphalt that dissimilar SBS carries out obtaining after composite can be stablized storage, has good high temperature performance and broad temperature applicable range again.
Embodiment 2
Present embodiment is compared with embodiment 1, only the ratio of F411x type SBS and YH791 type SBS is exchanged, and with the YH791 of 2 parts F411x and 4 parts, the character of composition is listed in table 3.The softening temperature difference of isolation test is 1.2 ℃, and softening temperature is 60.3 ℃, and 5 ℃ of ductilities are 69cm, illustrates that the modifying asphalt package stability that the present invention obtains well has good high temperature performance simultaneously.
Comparative Examples 3
This Comparative Examples explanation high molecular SBS in pitch the dispersion situation and modification after the bituminous performance.
In 1 liter reactor, 80.8 parts of asphalt stock B are heated to 160 ℃, add 6 parts F411x type SBS, 12 parts catalytically cracked oil and 1.2 parts sulphur subsequently, mixed 60 minutes at 160 ℃ with high-shear mixer.After mixing stops, it is even to can be observed asphalt surface, does not have macroscopic particle, but the isolation test result of table 4 shows that the softening temperature difference is 25 ℃ up and down, the dispersion of SBS in pitch is inhomogeneous, and the SBS in the pitch can the further layering with the prolongation of period of storage.Find also simultaneously that bituminous softening temperature (being 85.4 ℃) after the modification has been compared with asphalt stock B (softening temperature is 44.4 ℃) very significantly and improve, modification is described after the bituminous high-temperature behavior have significant improvement.
Comparative Examples 4
This Comparative Examples explanation lower molecular weight SBS in pitch the dispersion situation and modification after the bituminous performance.
Compare with Comparative Examples 3, this Comparative Examples only changes the SBS in the Comparative Examples 3 into molecular weight low YH791 type by the higher F411x type of molecular weight, and the character of composition is listed in table 4.Test-results finds that the segregation softening temperature difference of sample only is 0.8 ℃, it is very stable to illustrate that low-molecular-weight SBS disperses in pitch, do not emanate, and 5 ℃ of ductility values of bituminous after the modification (for 63cm) and asphalt stock B (5 ℃ of ductilities＜5cm) are compared and are greatly improved, the bituminous low-temperature performance had significant improvement after modification was described, shortcoming is that bituminous softening temperature after the modification (being 52.4 ℃) is little with the amplitude that asphalt stock B (softening temperature is 44.4 ℃) compares increase, illustrate that its high-temperature behavior does not have great improvement, so limited its use in the hot area.
Embodiment 3
Present embodiment explanation the present invention is applicable to wide temperature applicable range and the good polymer-asphalt comosition of package stability with the composite preparation of the SBS of two kinds of different structures.
Compare with Comparative Examples 3, present embodiment only with the SBS in the Comparative Examples 3 by the F411x type reduce to 4 parts and add 2 parts of YH791 type SBS in addition by 6 parts, the character of composition is listed in table 4.Test-results finds that the segregation softening temperature difference of sample is 2.5 ℃, illustrate that the SBS after composite disperses more stable in pitch, do not emanate, and bituminous softening temperature (being 77.1 ℃) is compared also with Comparative Examples 4 (softening temperature is 52.4 ℃) and is greatly increased after the modification, 5 ℃ of ductilities (for 41cm) are compared with Comparative Examples 3 (5 ℃ of ductilities are 17cm) and also are improved to some extent simultaneously, this explanation is with different molecular weight, the modifying asphalt that dissimilar SBS carries out obtaining after composite can be stablized storage, has good high temperature performance and broad temperature applicable range again.
Embodiment 4
Present embodiment is compared with embodiment 3, only the ratio of F411x type SBS and YH791 type SBS is exchanged, and with the YH791 of 2 parts F411x and 4 parts, the character of composition is listed in table 4.The softening temperature difference of isolation test is 1.8 ℃, and softening temperature is 65.2 ℃, and 5 ℃ of ductilities are 49cm, illustrates that the modifying asphalt package stability that the present invention obtains well has good high temperature performance simultaneously.
Embodiment 5
In 1 liter reactor, 80.8 parts of asphalt stock A are heated to 160 ℃, add 5.5 parts of F411x type SBS, 0.5 part of YH791 type SBS, 12 parts solvent treatment extraction oil and 1.2 parts sulphur successively, mixed 60 minutes at 160 ℃ with high-shear mixer.After mixing stopped, it was even to can be observed asphalt surface, does not have macroscopic particle, and the isolation test result of table 5 shows that the softening temperature difference is 2.3 ℃ up and down, illustrates that SBS is uniformly dispersed in pitch; Pitch softening point (being 84.2 ℃) after the modification has simultaneously been compared with asphalt stock (softening temperature is 43.5 ℃) very significantly and has been improved, the bituminous high-temperature behavior had raising largely after modification was described, 5 ℃ of ductilities (being 36cm) than asphalt stock (5 ℃ of ductilities＜5cm) big, modification be described after the bituminous low-temperature performance raising is largely also arranged.
Embodiment 6
In 1 liter reactor, 80.8 parts of asphalt stock A are heated to 160 ℃, add 0.5 part of F411x type SBS, 5.5 parts of YH791 type SBS, 12 parts naphthenic oil and 1.2 parts sulphur successively, mixed 60 minutes at 160 ℃ with high-shear mixer.After mixing stopped, it was even to can be observed asphalt surface, does not have macroscopic particle, and the isolation test result of table 5 shows that the softening temperature difference is 0.5 ℃ up and down, illustrates that SBS is uniformly dispersed in pitch; Pitch softening point after the modification simultaneously is 60.0 ℃, and asphalt stock A softening temperature is 43.5 ℃, the bituminous high-temperature behavior had raising largely after modification was described, 5 ℃ of ductilities are 85cm, and 5 ℃ of ductilities of asphalt stock A are lower than 5cm, illustrate that the bituminous low-temperature performance also has largely after the modification to improve.
Embodiment 7
In 1 liter reactor, 80.8 parts of asphalt stock A are heated to 160 ℃, add 3 parts of F411x type SBS, 3 parts of YH791 type SBS, 12 parts the heavy distillate of preparing ethylene by steam cracking tar and 1.2 parts dibenzoyl peroxide successively, mixed 60 minutes at 160 ℃ with high-shear mixer.After mixing stopped, it was even to can be observed asphalt surface, does not have macroscopic particle, and the isolation test result of table 5 shows that the softening temperature difference is 2.0 ℃ up and down, illustrates that SBS is uniformly dispersed in pitch; Pitch softening point after the modification simultaneously is 73.5 ℃, and asphalt stock A softening temperature is 43.5 ℃, the bituminous high-temperature behavior had raising largely after modification was described, 5 ℃ of ductilities are 61cm, and 5 ℃ of ductilities of asphalt stock A are lower than 5cm, illustrate that the bituminous low-temperature performance also has largely after the modification to improve.
Embodiment 8
In 1 liter reactor, 80.8 parts of asphalt stock A are heated to 160 ℃, add 3 parts of F411x type SBS, 3 parts of YH791 type SBS, 12 parts of solvent treatments extraction oil and 1.2 parts of Resins, epoxy successively, mixed 60 minutes at 160 ℃ with high-shear mixer.After mixing stopped, it was even to can be observed asphalt surface, does not have macroscopic particle, and the isolation test result of table 5 shows that the softening temperature difference is 1.6 ℃ up and down, illustrates that SBS is uniformly dispersed in pitch; Pitch softening point after the modification simultaneously is 78.0 ℃, and asphalt stock A softening temperature is 43.5 ℃, the bituminous high-temperature behavior had raising largely after modification was described, 5 ℃ of ductilities are 66cm, and 5 ℃ of ductilities of asphalt stock A are lower than 5cm, illustrate that the bituminous low-temperature performance also has largely after the modification to improve.
Table 1
| The asphalt stock numbering | A | B |
| The asphalt stock kind | Straight-run pitch | Mediation pitch |
| (25 ℃ of penetration degrees, 100g, 5s), 1/10mm softening temperature (R﹠B), and ℃ ductility (15 ℃, 5cm/min), (5 ℃ of cm ductilities, 5cm/min), cm density (25 ℃), g/cm 3 | 105 43.5 ＞150 ＜5 1.005 | 85 44.4 ＞150 ＜5 1.016 |
| Thin Film Oven Test TFOT (163 ℃, 5h) | ||
| Vaporization losses, m% penetration ratio (25 ℃), the % ductility (15 ℃, 5cm/min), cm | -0.03 61.7 ＞150 | -0.07 71 ＞150 |
| Four components, m% | ||
| Saturated part of fragrance part gum asphalt | 10.6 54.2 33.4 1.8 | 9.0 52.0 32.6 6.4 |
Table 2
| Trade names | YH791 | F411x |
| Outward appearance | The white strip | White particle shape |
| Structure | Line style | Star-like |
| Block compares PS/PB | 30/70 | 30/70 |
| Molecular weight Mn | 100,000 | 280,000 |
| Particle diameter, mm | ＜2 | ＞3 |
| Oil-filled rate, % | 0 | 5 |
| Tensile strength, MPa | 12.0 | - |
| 300% stress at definite elongation, MPa | 1.7 | - |
| Elongation at break, % | 700 | 700 |
| Tension set, % | 40 | - |
| Hardness | 75 | 80 |
| Melt flow index, g/10min | 0.5～5.0 | ＜0.5 |
| Fugitive constituent, % | 0.50 | - |
Table 3
| Comparative Examples 1 | Comparative Examples 2 | Embodiment 1 | Embodiment 2 | |
| Composition is formed (umber) | ||||
| Asphalt stock A | 80.8 | 80.8 | 80.8 | 80.8 |
| SBS(F411x) | 6 | - | 4 | 2 |
| SBS(YH791) | - | 6 | 2 | 4 |
| Catalytically cracked oil | 12 | 12 | 12 | 12 |
| Sulphur | 1.2 | 1.2 | 1.2 | 1.2 |
| Composition character | ||||
| Penetration degree (25 ℃), 1/10mm | 76 | 80 | 76 | 77 |
| Softening temperature, ℃ | 78.5 | 48.4 | 65 | 60.3 |
| Ductility (5 ℃), cm | 32 | 90 | 61 | 69 |
| Thin film oven (163 ℃, 5hr) | ||||
| Penetration ratio (25 ℃), % | 81.4 | 77.1 | 74.5 | 82.0 |
| Ductility (5 ℃), cm | 13 | 55 | 40 | 54 |
| Isolation test (163 ℃, 48hr) | ||||
| Softening temperature is poor up and down, ℃ | 30 | 0.3 | 2.2 | 1.2 |
Table 4
| The embodiment numbering | Comparative Examples 3 | Comparative Examples 4 | Embodiment 3 | Embodiment 4 |
| Composition is formed (umber) | ||||
| Asphalt stock B | 80.8 | 80.8 | 80.8 | 80.8 |
| SBS(F411x) | 6 | - | 4 | 2 |
| SBS(YH791) | - | 6 | 2 | 4 |
| Catalytically cracked oil | 12 | 12 | 12 | 12 |
| Sulphur | 1.2 | 1.2 | 1.2 | 1.2 |
| Composition character | ||||
| Penetration degree (25 ℃), 1/10mm | 53 | 64 | 58 | 60 |
| Softening temperature, ℃ | 85.4 | 52.4 | 77.1 | 65.2 |
| Ductility (5 ℃), cm | 17 | 63 | 41 | 49 |
| Thin film oven (163 ℃, 5hr) | ||||
| Penetration ratio (25 ℃), % | 85.2 | 79.6 | 83.2 | 82.7 |
| Ductility (5 ℃), cm | 9 | 48 | 32 | 35 |
| Isolation test (163 ℃, 48hr) | ||||
| Softening temperature is poor up and down, ℃ | 25 | 0.8 | 2.5 | 1.8 |
Table 5
| The embodiment numbering | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| Composition is formed (umber) | ||||
| Asphalt stock A | 80.8 | 80.8 | 80.8 | 80.8 |
| SBS(F411x) | 5.5 | 0.5 | 3 | 3 |
| SBS(YH791) | 0.5 | 5.5 | 3 | 3 |
| Compatilizer | 12 | 12 | 12 | 12 |
| Stablizer | 1.2 | 1.2 | 1.2 | 1.2 |
| Composition character | ||||
| Penetration degree (25 ℃), 1/10mm | 78 | 86 | 81 | 80 |
| Softening temperature, ℃ | 84.2 | 60.0 | 73.5 | 78.0 |
| Ductility (5 ℃), cm | 36 | 85 | 61 | 66 |
| Thin film oven (163 ℃, 5hr) | ||||
| Penetration ratio (25 ℃), % | 83.4 | 76.2 | 80.2 | 82.7 |
| Ductility (5 ℃), cm | 22 | 49 | 31 | 36 |
| Isolation test (163 ℃, 48hr) | ||||
| Softening temperature is poor up and down, ℃ | 2.3 | 0.5 | 2.0 | 1.6 |
Claims (12)
1, a kind of stable storing, the bituminous composition that high temperature performance is good, the asphalt stock that comprises 64～99.6 heavy %, 0.1 the low-molecular weight polymer of～7.0 heavy %, 0.1 the high-molecular weight polymer of～7.0 heavy %, 0.1 the stablizer of the compatilizer of～20 heavy % and 0.01～2 heavy %, wherein said compatilizer is for being rich in polarity gelationus petroleum fractions or compound, boiling point＞300 ℃ are selected from nilox resin, contain sour Yatall MA, catalytically cracked oil, oil is extracted in solvent treatment out, refining naphthenic oil, the mixture of one or more in the heavy distillate of preparing ethylene by steam cracking tar.
2, according to the bituminous composition of claim 1, it is characterized in that described asphalt stock is one or more the mixture that is selected from petroleum pitch, coal-tar pitch, oil sands bitumen and the rock asphalt, wherein petroleum pitch is one or more the mixture that is selected from straight-run pitch, solvent deoiling pitch, oxidized bitumen and the mediation pitch.
3, according to the bituminous composition of claim 1, it is characterized in that described polymkeric substance is selected from vinylbenzene-conjugated diene binary or ternary block polymer, cinnamic content is 20～40% in the block, and conjugated diolefine is divinyl or isoprene.
4, according to the bituminous composition of claim 1, it is characterized in that described low-molecular-weight polymericular weight is 10,000～150,000, the high molecular weight polymers molecular weight is 150,000～500,000.
5,, it is characterized in that described stablizer is selected from one or more the mixture in organo-peroxide, metal oxide, sulphur, vulcanization accelerator, the Resins, epoxy according to the bituminous composition of claim 1.
6, a kind of method for preparing the described bituminous composition of claim 1, it is characterized in that the asphalt stock of 64～99.6 heavy % is heated to 120～230 ℃, add the low-molecular-weight polymkeric substance of 0.1～7.0 heavy %, the high molecular weight polymers of 0.1～7.0 heavy %, the compatilizer of 0.1～20 heavy % and the stablizer of 0.01～2 heavy % successively, under high shear forces, reacted 0.5～6 hour.
7, according to the method for claim 6, the Heating temperature of asphalt stock is 150～210 ℃, and the reaction times is 1～5 hour.
8, according to the method for claim 6 or 7, it is characterized in that described asphalt stock is one or more the mixture that is selected from petroleum pitch, coal-tar pitch, oil sands bitumen and the rock asphalt, wherein petroleum pitch is one or more the mixture that is selected from straight-run pitch, solvent deoiling pitch, oxidized bitumen and the mediation pitch.
9, according to the method for claim 6, it is characterized in that described polymkeric substance is selected from vinylbenzene-conjugated diene binary or ternary block polymer, cinnamic content is 20～40% in the block, and conjugated diolefine is divinyl or isoprene.
10, according to the method for claim 6, it is characterized in that described low-molecular-weight polymericular weight is 10,000～150,000, the high molecular weight polymers molecular weight is 150,000～500,000.
11, according to the method for claim 6, it is characterized in that described compatilizer is for being rich in polarity gelationus petroleum fractions or compound, boiling point＞300 ℃, the mixture of one or more in the heavy distillate of being selected from nilox resin, containing sour Yatall MA, catalytically cracked oil, solvent treatment being extracted oil, refining naphthenic oil, preparing ethylene by steam cracking tar out.
12,, it is characterized in that described stablizer is selected from one or more the mixture in organo-peroxide, metal oxide, sulphur, vulcanization accelerator, the Resins, epoxy according to the method for claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011154918A CN1175050C (en) | 2001-04-28 | 2001-04-28 | Asphalt composition with better storage stability and high-and low-temp performance and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011154918A CN1175050C (en) | 2001-04-28 | 2001-04-28 | Asphalt composition with better storage stability and high-and low-temp performance and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1382747A CN1382747A (en) | 2002-12-04 |
| CN1175050C true CN1175050C (en) | 2004-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011154918A Expired - Lifetime CN1175050C (en) | 2001-04-28 | 2001-04-28 | Asphalt composition with better storage stability and high-and low-temp performance and its preparing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103197435B (en) * | 2013-04-11 | 2015-04-22 | 杭州亿超电子商务有限公司 | Spectacle lens machining method |
| CN113969063B (en) * | 2020-07-24 | 2023-01-10 | 中国石油化工股份有限公司 | Polymer modified asphalt and preparation method and application thereof |
| CN113969064B (en) * | 2020-07-24 | 2023-01-10 | 中国石油化工股份有限公司 | SBR modified asphalt and preparation method and application thereof |
| CN112129731B (en) * | 2020-08-12 | 2024-01-23 | 山东省交通科学研究院 | Rapid detection method and detection tool for storage stability of polymer modified asphalt |
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| CN1382747A (en) | 2002-12-04 |
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