CN1429880A - Method of manufacturing thermoplastic olefine polymer modified asphalt having good stability - Google Patents
Method of manufacturing thermoplastic olefine polymer modified asphalt having good stability Download PDFInfo
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- CN1429880A CN1429880A CN 02116763 CN02116763A CN1429880A CN 1429880 A CN1429880 A CN 1429880A CN 02116763 CN02116763 CN 02116763 CN 02116763 A CN02116763 A CN 02116763A CN 1429880 A CN1429880 A CN 1429880A
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- Prior art keywords
- asphalt
- polymer modified
- good stability
- package stabilizer
- modified asphalt
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- 239000010426 asphalt Substances 0.000 title claims abstract description 60
- 229920000642 polymer Polymers 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000011787 zinc oxide Substances 0.000 claims abstract description 8
- 239000005060 rubber Substances 0.000 claims abstract description 6
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 27
- 239000003381 stabilizer Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 7
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims description 6
- KPAPHODVWOVUJL-UHFFFAOYSA-N 1-benzofuran;1h-indene Chemical compound C1=CC=C2CC=CC2=C1.C1=CC=C2OC=CC2=C1 KPAPHODVWOVUJL-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000012990 dithiocarbamate Substances 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 2
- MZGNSEAPZQGJRB-UHFFFAOYSA-N dimethyldithiocarbamic acid Chemical compound CN(C)C(S)=S MZGNSEAPZQGJRB-UHFFFAOYSA-N 0.000 claims 1
- 229920002397 thermoplastic olefin Polymers 0.000 claims 1
- 150000003751 zinc Chemical class 0.000 claims 1
- KMNUDJAXRXUZQS-UHFFFAOYSA-L zinc;n-ethyl-n-phenylcarbamodithioate Chemical group [Zn+2].CCN(C([S-])=S)C1=CC=CC=C1.CCN(C([S-])=S)C1=CC=CC=C1 KMNUDJAXRXUZQS-UHFFFAOYSA-L 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical class [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 2
- GPNLWUFFWOYKLP-UHFFFAOYSA-N s-(1,3-benzothiazol-2-yl)thiohydroxylamine Chemical class C1=CC=C2SC(SN)=NC2=C1 GPNLWUFFWOYKLP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011701 zinc Chemical class 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 abstract 1
- 239000006084 composite stabilizer Substances 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 31
- 229920003048 styrene butadiene rubber Polymers 0.000 description 13
- 239000002174 Styrene-butadiene Substances 0.000 description 12
- 230000035515 penetration Effects 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000005204 segregation Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000008961 swelling Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229940124530 sulfonamide Drugs 0.000 description 2
- 150000003456 sulfonamides Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- HLLSOEKIMZEGFV-UHFFFAOYSA-N 4-(dibutylsulfamoyl)benzoic acid Chemical compound CCCCN(CCCC)S(=O)(=O)C1=CC=C(C(O)=O)C=C1 HLLSOEKIMZEGFV-UHFFFAOYSA-N 0.000 description 1
- BYJUYQKSBLFXGW-UHFFFAOYSA-M C(N)([S-])=S.C(C)C=1C(=C(C=CC1)[Zn+])CC Chemical compound C(N)([S-])=S.C(C)C=1C(=C(C=CC1)[Zn+])CC BYJUYQKSBLFXGW-UHFFFAOYSA-M 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 229920000034 Plastomer Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000005870 Ziram Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 150000004986 phenylenediamines Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 1
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
- Road Paving Structures (AREA)
Abstract
A process for preparing high-stability modified asphalt features that the asphalt is modified by thermoplastic olefine polymer (SBS) or unsulfurized rubber (SBR) while a composite stabilizer is added, which is prepared from arylhydrocarbon concentration regulator, zinc oxide, S,N-substituted 2-benzothiazole sulfenamide, zinc dithioaminoformate, and p-phenyldiamine.
Description
Technical field
The invention belongs to a kind of manufacture method of modifying asphalt, belong to the manufacture method of the modifying asphalt that has good stability especially.
Background technology
In view of the stability of polymer modified asphalt importance, so it is paid attention to by road and construction industry always to construction and life-time service performance.This stability has the meaning of two aspects: first modifying asphalt is bellding not during use, and it two is not separate during thermmal storage.
The evaluation method of these two kinds of stability all has direct relation with the consistency of polymer modified asphalt system medium pitch and polymer phase, so the research of consistency is very big in role aspect the technical progress of modifying asphalt.The modifying asphalt that consistency is good, except that good stability, other index also has sizable improvement.Material modified preferably with bitumen compatibility, aspect elastomerics, have: styrene-butadiene-styrene thermoplastic elastomer (SBS), styrene-butadiene rubber(SBR) (SBR) etc.; Aspect plastomer, have: randompoly-(APAO), Atactic Polypropelene (APP) etc.Owing to material source and viscoelastic reason, the application of randompoly-is few than elastomerics at present, so consistency and Study on Stability mainly concentrate on elastomer modified asphalt.
Since the eighties, Chinese scholars has been done number of research projects to the relation of pitch chemical constitution and modifying asphalt consistency.Know that now different polymkeric substance requires pitch by the different intervals of forming.In fact, same polymkeric substance is to different pitch, and its suitable chemical constitution interval also is different, and each component of pitch is differentiated to the swelling ability of polymkeric substance.Usually seek suitable matrix pitch according to selected polymkeric substance, otherwise or, suitable polymer blend sought according to the matrix pitch of selecting for use.When the chemical constitution of matrix pitch can not satisfy the consistency requirement, can add suitable component, as in SBS modifying asphalt system, adding aromatic hydrocarbon oil to promote polymkeric substance and bituminous peptization.
As for polymer modified asphalt second meaning---" not separating during the thermmal storage ", this is a hot storage stability.Relevant hot storage stability, " job specifications of Modified Bitumen Pavement " of China the Ministry of Communications (JTJ36-98) have adopted index and the test method of U.S. ASTM basically.The segregation detection method is with reference to the requirement of adopting ASTM D5976-96: estimate polymkeric substance and pitch separating when heat-storage, be that modifying asphalt is sealed in a diameter 25mm, in the pipe of long 140mm, vertically place 163 ± 5 ℃ baking oven interior after 48 hours, it is cut into three equal parts, cast out interlude, relatively its top and bottom bituminous softening temperature.This detection might develop into ortho-test in China, as one of index of estimating SBS class modifying asphalt, also is the compliance index that external modifying asphalt can use in China.
Obtain the polymer modified asphalt of good stability, should study the proportioning raw materials of polymer modified asphalt, study its manufacturing process again.
Chinese patent CN1025742 carries out modification with SBS, high-pressure polyethylene, low density polypropylene etc. to pitch and the modifying asphalt that makes, because do not use stablizer, so the stability of prepared modifying asphalt can be unfavorable: sample is stored 24 hours postcooling at 160 ℃, layering occurs.
The modifying asphalt that the patent of Exxon company (US 5348994) has good stability with manufacturing with sulfonated gilsonite, alkaline neutraliser, sulfonated polymer, its used polymkeric substance has SBS, EPDM etc.But during separation when prepared modifying asphalt detects it and stores by ASTMD5976-96, the emanate difference of softening temperature of top and bottom pitch is≤4 ℃, and is not ideal enough.
Chinese patent CN 1168149 usefulness SBS, sulfur donor (as sulphur) and coupling agent are made modifying asphalt, but acid used in its manufacturing processed has disadvantageous effect to equipment, the gained modifying asphalt improves to some extent with the temperature sensitivity of PN (Pffeiffer Number) assessment, but still not ideal enough.
Summary of the invention
Not high at thermoplastic olefine polymer modified asphalt stability prepared in the prior art, manufacturing process is complicated and equipment had shortcomings such as particular requirement, the inventor is through extensive, deep research, invented a kind of good bituminous method of hot storage stability made from SBS or SBR modification, prepared modifying asphalt, by above detection method evaluation, during thermmal storage, be not separated.The practice that road is used shows that this SBS or SBR polymer modified asphalt have workability easily, and the bituminous mixture laying performance of its making is good, and good weather resistance is arranged, and its high and low temperature performance and peeling resistance are also all fine.This SBS or SBR polymer modified asphalt can be with existing device fabrication, storage, transportations.
Typical preparation technology's flow process of our invention is as follows:
Be to be directly used in construction according to the gained modifying asphalt among the preparation technology, still as masterbatch through being used for the working-yard after the dilution once more, and the mutual consumption between decision pitch and SBS or the SBR.In general, for road modified asphalt SBS, or the consumption of SBR is the 3-6% (weight ratio) of asphalt content.The consumption of one package stabilizer is≤5% (weight ratio is in made modifying asphalt total amount).So-called allotment is meant that used penetration of bitumens is not as reaching corresponding requirement, should give allocation processing in advance, in the promptly above technological process, if used matrix pitch penetration degree is too little, can add the big pitch of penetration degree and allocate, after checking penetration degree qualified, just can enter metering.In order to adjust bituminous viscosity, also can in the course of processing, quantitatively add aromatic hydrocarbon oil or third fractional oil, but the penetration degree classification of used pitch before allotment is at least No. 70.Used pitch for example is No. 90, SHELL90 number, SK90 number and emerging energy.
If used material modified be not SBS but the SBR rubber then should pass through break process.Handle the early stage of SBR is complicated step, and its rubber is difficult for storing and transporting under the small-particle state.Do not sell owing to now there is fine granularity SBR rubber on the market, so the SBS material is the first-selected outer material of mixing of present elastomer modified asphalt.Through the SBS (or SBR) of proportioning metering can stirring in 150 ℃ to 200 ℃ pitch, mixing, swelling.Owing to add the outer temperature that can reduce mixed system when mixing material, generally should when 170 ℃ to 200 ℃ of pitch displays temperatures, add the outer material of mixing for well, asphalt viscosity is less at this moment, is beneficial to the carrying out of dispersion and swelling process.
Used SBS can be linear structure or hub-and-spoke configuration (as the SBS YH791 of Yueyang petro-chemical corporation, YH801, the SBS4303 of Yanshan Petrochemical company, 1301, the SBS 501,502 of LG company, F401 of Belgian FINA company etc.).
The consisting of of the one package stabilizer that the present invention is used (parts by weight):
Density of aromatic hydrocarbon conditioning agent 3-100
Coumarone indene resin 0-100
Zinc oxide 2-30
Sulphur 2-20
N-replacement-2-[4-morpholinodithio sulfonamides 2-30
Dithiocarbamate(s) 0-30
Phenylenediamine 0-10
Wherein: the density of aromatic hydrocarbon conditioning agent is selected from rosin, Stockholm tar or Yatall MA etc., can be liquid or powdery solid.Coumarone indene resin can be liquid or powdery solid.Zinc oxide and sulphur are powdery solid.N replacement-2-[4-morpholinodithio sulfonamides is selected from: N, N-dicyclohexyl-2-[4-morpholinodithio sulphenamide; The N-cyclohexyl
-2-[4-morpholinodithio sulphenamide or N-oxygen diethylene base-2 benzothiazole sulphenamide etc.Dithiocarbamate(s) is selected from: diethyl phenyl zinc dithiocarbamate; Diethyldithiocar bamic acid
Zinc; Ziram or zinc dibutyl dithiocarbamate etc.Phenylenediamine is selected from: Ursol D, O-Phenylene Diamine or N, N '-diphenyl-para-phenylene diamine etc.
Wherein, the compound of phenylenediamine can be used as the anti-aging agent use.
Each liquid parts and powdery composition used in the one package stabilizer should be distinguished accumulating, mix at the scene when using, and meter adds at last.
Now preparation technology of the present invention is described below:
The pitch of modulated cooperation lattice is quantitatively joined in the stirred pot, and this stirred pot can heat, and forms closed circuit circulatory system with colloidal mill (or high-shear machine).When pitch is heated to 150 ℃-180 ℃, the SBS or the SBR that have measured are joined in the above-mentioned pitch, stir while adding, make its even swelling, send into then in the colloidal mill (or high-shear machine), in the closed-circuit system of forming by stirred pot and colloidal mill (or high-shear machine) cyclic process 0.5-2 hour, under continuous condition of stirring, add needed stablizer, after adding then, answered discharging after the assay was approved restir 20-40 minute.
1. the type of heating of equipment can adopt thermal oil or electric mantle.
2. one package stabilizer should stir before adding, can make powdery or liquid state.
3. should use three rank or single-step form pitch mixer mill, i.e. colloidal mill.
4. the pulverization process in early stage of SBR is a complicated step, and its rubber is difficult for storing and transporting under the small-particle state,
Owing to this reason, the SBS material is the first-selected outer material of mixing of present elastomer modified asphalt.
With the prepared modifying asphalt of method of the present invention under 150 ℃-180 ℃ temperature, store, can stable existence in the transportation and do not separate, thereby satisfy the requirement of road pavement and buildings waterproof.Its stability is by the check of emanating of ASTMD5976-96 or China the Ministry of Communications " job specifications of Modified Bitumen Pavement " experimental technique (JTJ36-98), and the difference of the softening temperature of top and bottom is in 1.5 ℃, is better than existing technology greatly.
Embodiment one, embodiment 1
The composition weight mark
No. 90 pitches 100.00 of Shell
Aromatic hydrocarbon oil 2.0
SBS?YH801 3.80
One package stabilizer 2.02
Method for making:
Add SBS YH801 when 160 ℃ of pitches, circulation is 1.5 hours in colloidal mill, makes it to be uniformly dispersed.Stop circulation, heating up reaches 180 ℃, adds one package stabilizer again and stirs 40 minutes.
The composition of one package stabilizer, mark meter, wherein rosin 40, liquid coumarone indene resin 60, zinc oxide 10, sulphur 10, N cyclohexyl 2 benzothiazole sulfenamide 10, Ursol D 4 by weight.
The index of the SBS class modifying asphalt I-D of made samples met JTJ36-98 code requirement, 78 ℃ of its softening temperatures; In the time of 25 ℃, penetration degree 52dmm; Elastic recovery rate 87%; Segregation softening temperature difference is less than 1.5 ℃.
69 ℃ of the modifying asphalt softening temperatures that does not add one package stabilizer as a comparison; In the time of 25 ℃, penetration degree 49dmm; Elastic recovery rate 80%; The segregation softening temperature differs from 18 ℃.Two, embodiment 2
The composition weight mark
SK90 pitch 100.00
SBSYH791 4.30
One package stabilizer 2.00
Method for making:
When 170 ℃ of pitches, add SBSYH791,, add one package stabilizer again, stirred 40 minutes in colloidal mill circulation not recirculation after 1.5 hours.
The composition of one package stabilizer is the mark meter by weight, wherein liquid aromatic hydrocarbons conditioning agent Stockholm tar 80, sulphur 5, zinc oxide 20, zinc diethyldithiocarbamate 10, N cyclohexyl 2 benzothiazole sulfenamide 5, Ursol D 5.
The index of the SBS class modifying asphalt I-D of made samples met JTJ36-98 code requirement, its softening temperature is 85 ℃; In the time of 25 ℃, penetration degree 56dmm; Elastic recovery 85%; The segregation softening temperature differs from 1.0 ℃.
79 ℃ of its softening temperatures of the modifying asphalt that does not add one package stabilizer as a comparison; In the time of 25 ℃, penetration degree 50dmm; Elastic recovery rate 80%; The segregation softening temperature differs from 15 ℃.Three, embodiment 3
The composition weight mark
No. 90 pitches 100.00 of emerging energy
Third fractional oil 2.00
SBS1301 4.40
One package stabilizer 2.00 method for makings:
Add SBS1301 when 170 ℃ of pitches, stirred swelling 30 minutes, circulation is 1.5 hours in colloidal mill.Not recirculation is warmed up to 180 ℃, adds one package stabilizer again and stirs 30 minutes.
The composition of one package stabilizer is the mark meter by weight, wherein contains Stockholm tar 60, liquid coumarone indene resin 60, Sulfur 8, N cyclohexyl 2 benzothiazole sulfenamide 8, zinc oxide 5, Ursol D 5.
Prepared samples met JTJ36-98, the index of SBS modifying asphalt I-D, 80 ℃ of its softening temperatures; Penetration degree 56dmm in the time of 25 ℃; Elastic recovery rate 85%; Segregation softening temperature difference is less than 1.5 ℃.
The modifying asphalt that does not add one package stabilizer as a comparison, 75 ℃ of softening temperatures; In the time of 25 ℃, penetration degree 50dmm; Elastic recovery rate 80%; The segregation softening temperature differs from 20 ℃.
More than the original penetration degree of used bituminous all greater than 92dmm.Pitch on the domestic market such as SK, Esso, all available its high grade pitch allotment is used, and does not influence the modification quality.But the pitch in the different places of production (as joyful mountain range of China and Esso), if allotment then must be done segregation layering test mutually, confirmation can be miscible available then.The method of segregation layering test is the same with the regulation of JTJ36-98.
Claims (5)
1, the method for the thermoplastic olefine polymer modified asphalt that has good stability of a kind of manufacturing, it carries out modification processing with colloidal mill or high-shear mixer complete processing to molten asphalt, and evenly adding one package stabilizer in the fused modifying asphalt system, make the gained modifying asphalt have good construction stability and stability in use, it is characterized in that:
(1), the thermoplastic olefin polymer that is used for modification is: line style or star-like styrene-butadiene-styrene block elastomer or styrene-butadiene-styrene unvulcanized rubber, its consumption are the 3-6% weight of asphalt content;
(2), the consumption of one package stabilizer with made modifying asphalt gross weight count≤5%, its composition is by weight: density of aromatic hydrocarbon conditioning agent 3-100, the coumarone indene resin 0-100, zinc oxide 2-30, sulphur 2-20, the N-that are selected from rosin, Stockholm tar or Yatall MA replace 2-[4-morpholinodithio sulphenamide 2-30, zinc salt of dithiocarbamate 0-30, phenylenediamine 0-10, and restir or grinding are 20-40 minute behind the adding one package stabilizer.
2, the method for the thermoplastic olefine polymer modified asphalt that has good stability according to the manufacturing of claim one, the matrix pitch that it is characterized in that wherein being used for this type of modifying asphalt can be the finished product road bitumen, also can be the pitch by the allotment of modifying asphalt processing factory.
3, the method for the thermoplastic olefine polymer modified asphalt that has good stability according to the manufacturing of claim one is characterized in that wherein each composition as one package stabilizer,
The density of aromatic hydrocarbon conditioning agent can be liquid or powdery solid;
Coumarone indene resin can be liquid or powdery solid;
Zinc oxide and sulphur are powdery solid;
N-replaces the 2-[4-morpholinodithio sulphenamide and is selected from N, N-dicyclohexyl-2-[4-morpholinodithio sulphenamide, N cyclohexyl 2 benzothiazole sulfenamide or N-oxygen diethylene base-2-[4-morpholinodithio sulphenamide;
Dithiocar-bamate is selected from zinc-ethylphenyl dithiocarbamate, zinc diethyldithiocarbamate or zine dimethyldithiocarbamate;
Phenylenediamine is selected from Ursol D, O-Phenylene Diamine or N, N '-diphenyl-para-phenylene diamine.
4, the method for the thermoplastic olefine polymer modified asphalt that has good stability according to the manufacturing of claim one is characterized in that wherein used one package stabilizer is a powdery, granular or liquid.
5, the method for the thermoplastic olefine polymer modified asphalt that has good stability according to the manufacturing of claim one, it is characterized in that wherein used each liquid parts and powdery composition should be distinguished accumulating in the one package stabilizer, mix at the scene when using, the metering back adds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116763 CN1272403C (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing thermoplastic olefine polymer modified asphalt having good stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116763 CN1272403C (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing thermoplastic olefine polymer modified asphalt having good stability |
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| CN1429880A true CN1429880A (en) | 2003-07-16 |
| CN1272403C CN1272403C (en) | 2006-08-30 |
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| CN 02116763 Expired - Fee Related CN1272403C (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing thermoplastic olefine polymer modified asphalt having good stability |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412136C (en) * | 2005-12-24 | 2008-08-20 | 深圳清华大学研究院 | Asphalt modified mother material and preparation process for modified asphalt thereof |
| CN100497481C (en) * | 2006-11-30 | 2009-06-10 | 侯芸 | Asphalt composition and its preparing method |
| CN102061100A (en) * | 2011-02-02 | 2011-05-18 | 佛山惠福化工有限公司 | Composite modifier modified road bitumen and preparation method thereof |
| CN103525107A (en) * | 2013-10-22 | 2014-01-22 | 山西省交通科学研究院 | Preparation method of stable SBS (Styrene Butadiene Styrene) modified asphalt |
| 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 |
| CN105542823A (en) * | 2014-11-03 | 2016-05-04 | 中国石油化工股份有限公司 | Oil slurry blended asphalt preparation method |
| CN108299834A (en) * | 2017-12-20 | 2018-07-20 | 深圳市格瑞实业发展有限公司 | A kind of SBS modified pitch and preparation method thereof |
-
2002
- 2002-05-10 CN CN 02116763 patent/CN1272403C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412136C (en) * | 2005-12-24 | 2008-08-20 | 深圳清华大学研究院 | Asphalt modified mother material and preparation process for modified asphalt thereof |
| CN100497481C (en) * | 2006-11-30 | 2009-06-10 | 侯芸 | Asphalt composition and its preparing method |
| CN102061100A (en) * | 2011-02-02 | 2011-05-18 | 佛山惠福化工有限公司 | Composite modifier modified road bitumen and preparation method thereof |
| CN103525107A (en) * | 2013-10-22 | 2014-01-22 | 山西省交通科学研究院 | Preparation method of stable SBS (Styrene Butadiene Styrene) modified asphalt |
| 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 |
| CN105542823A (en) * | 2014-11-03 | 2016-05-04 | 中国石油化工股份有限公司 | Oil slurry blended asphalt preparation method |
| CN105542823B (en) * | 2014-11-03 | 2018-06-15 | 中国石油化工股份有限公司 | A kind of preparation method of slurry oil reconciliation pitch |
| CN108299834A (en) * | 2017-12-20 | 2018-07-20 | 深圳市格瑞实业发展有限公司 | A kind of SBS modified pitch and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1272403C (en) | 2006-08-30 |
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Address after: 400060 No. fifth, No. 1 Asia Pacific Road, Nan'an District, Chongqing, No. 25-21 Patentee after: Chongqing Meilun Road Asphalt engineering Co., Ltd. Address before: 400060 West Nanping Nan'an District of Chongqing City No. 23 Jintai building 14 floor No. 2 Co-patentee before: University of Petroleum (Hua Dong) Heavy Oil Research Institute Patentee before: Chongqing Meilun Road Asphalt engineering Co., Ltd. |
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