CN110437630A - A kind of polymer modified asphalt and preparation method thereof - Google Patents
A kind of polymer modified asphalt and preparation method thereof Download PDFInfo
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- CN110437630A CN110437630A CN201810420181.1A CN201810420181A CN110437630A CN 110437630 A CN110437630 A CN 110437630A CN 201810420181 A CN201810420181 A CN 201810420181A CN 110437630 A CN110437630 A CN 110437630A
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- pitch
- polymer modified
- reconciliation
- modified asphalt
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- 239000010426 asphalt Substances 0.000 title claims abstract description 53
- 229920000642 polymer Polymers 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 53
- 230000035515 penetration Effects 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 19
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 21
- 239000003381 stabilizer Substances 0.000 claims description 20
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 18
- 150000002910 rare earth metals Chemical class 0.000 claims description 15
- 230000006837 decompression Effects 0.000 claims description 11
- 238000007670 refining Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 4
- 150000001924 cycloalkanes Chemical class 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 239000012990 dithiocarbamate Substances 0.000 claims description 2
- 150000004659 dithiocarbamates Chemical class 0.000 claims description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 230000003712 anti-aging effect Effects 0.000 abstract description 2
- 230000002929 anti-fatigue Effects 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 119
- ZWRRTZVHXPEXFK-UHFFFAOYSA-K N,N-diethylcarbamodithioate lanthanum(3+) Chemical compound C(C)N(C([S-])=S)CC.[La+3].C(C)N(C([S-])=S)CC.C(C)N(C([S-])=S)CC ZWRRTZVHXPEXFK-UHFFFAOYSA-K 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 10
- 239000003921 oil Substances 0.000 description 8
- 239000004575 stone Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- -1 rare earth ion Chemical class 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of polymer modified asphalts and preparation method thereof.The polymer modified asphalt has selected a kind of specific reconciliation pitch, so that can not contain expanding material in polymer modified asphalt.The reconciliation pitch, specific matrix pitch and colloform texture is selected to adjust component, which, which adjusts component, can not only change the needle penetration of matrix pitch, can also be mutually complementary with the composition of matrix pitch on composition, keep four components do match of pitch after reconciling reasonable, it is easily modified.Inventive polymers modified pitch compatibility is good, high temperature performance, anti-aging property, anti-fatigue performance and excellent road performance, properties fully meet the technical requirement of polymer modified asphalt.
Description
Technical field
The present invention relates to a kind of polymer modified asphalt and preparation method thereof, specifically a kind of compatibility is good
SBS modified pitch and preparation method thereof.
Background technique
Asphalt is a kind of product of crude oil processing, be at normal temperature black or dark brown sticky liquid,
Semisolid or solid mainly contain the hydro carbons for dissolving in chloroform and nonhydrocarbon analog derivative.Many changes occur for highroad and road
Change: it is required that further increase road surface resistance to flow, i.e., the ability of Rut resistance under high temperature；Flexible and elasticity is improved, i.e., is resisted under low temperature
The ability of cracking；It improves abrasion performance ability and prolongs the service life.Therefore, pitch is modified and is increasingly taken seriously.
The kind and technology of preparing of modified pitch depend on the composition of the type of modifying agent, additional amount and matrix pitch (i.e. material asphalt)
And property.It since modifying agent is various in style, comes in every shape, in order to form itself and asphalt uniformly for Practical
Material has rated various types modifying agent for many years, and develops corresponding formula and preparation method.
For polymer modified asphalt, the storage stability of the compatibility or modified pitch of pitch and polymer is first
It first to solve the problems, such as, this is all guaranteed for the transport of modified pitch and service performance.
The average molecular mass of the compatibility and SBS of SBS and pitch, matrix pitch composition, expanding material, stabilizer and
Processing technology etc. is related.Wherein the composition of matrix pitch and stabilizer are affected to the compatibility of SBS modified pitch, usual feelings
Under condition, generally determine that it is applicable in Gastel index (Ic value) when being selected as the matrix pitch of modified pitch raw material
Property, Ic=(saturation point+asphalitine)/(fragrance point+colloid), Ic value is at 0.26~0.32, matrix pitch and high molecular polymer
Compatibility it is preferable.
But for Ic value not in the residual oil of above range, it is more difficult to prepare the SBS modified pitch of stable storing.For this original
It is that the expanding material for being rich in aromatised fraction is added that material, which prepares the method that modified pitch generallys use at present, and the purpose one of expanding material is added
Aspect is to change the chemical composition ratio of matrix pitch, and SBS is promoted to be swollen more abundant, so as to improve the compatible of SBS and pitch
Property；On the other hand it is to adjust component as needle penetration, adjusts the needle penetration of matrix pitch.Although addition expanding material is conducive to SBS
The swelling of modifying agent, but the adhesiveness of modified pitch and aggregate can be weakened, certain shadow is had to the service performance of modified pitch
It rings.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of polymer modified asphalt and its preparation sides
Method.Expanding material is free of in the modified pitch, under the premise of can fully ensure that pitch and polymer compatibility, moreover it is possible to improve modified drip
The green adhesion property with aggregate.
The present invention provides a kind of polymer modified asphalt, is calculated in mass percent, including following component:
Reconciliation pitch 92%~95%；
SBS 4%~6%；
Stabilizer 0.5%~1.0%；
Rare earth promotor 0.5%~1.0%.
Expanding material is free of in above-mentioned polymer modified asphalt, the expanding material is the distillate rich in aromatic hydrocarbons, is especially taken out
It is fuel-displaced.
The reconciliation pitch, is calculated in mass percent, including following component:
Matrix pitch 15%~80%；It is preferred that 30%~65%；
Colloform texture adjusts component 20%~85%；It is preferred that 35%~70%.
The matrix pitch is using the straight asphalt or decompression residuum of the refining of single naphthene base crude, PI value :-
1.5 ~ -0.5, Ic value: 0.2 ~ 0.25.The matrix pitch, 25 DEG C of needle penetrations are 100~120 1/10mm, and 10 DEG C of ductilities are big
In 150cm.
Wherein, PI value is the index to describe the temperature sensitivity of pitch, and penetration index PI is bigger, the temperature of pitch
Sensibility is smaller.
Asphalt penetration index PI is will to measure needle penetration under the conditions of 15 DEG C, 25 DEG C, 30 DEG C etc. 3 or 3 temperatures above
(PI=(20-500A)/(1+50A)) is calculated according to a specified method afterwards, and wherein A is needle penetration temperature sensitivity coefficient.A=
(lgPT1- lgPT2)/(T2-T1).
The colloform texture adjusting group is divided into straight asphalt or decompression residuum using the refining of single intermediate base crude,
PI value: 0.5~1.5；25 DEG C of needle penetrations are 120~140 1/10mm；Softening point is greater than 44 DEG C, and 60 DEG C of dynamic viscosities are greater than
150Pa·s。
The property of the reconciliation pitch: PI value is -1.0 ~ -0.5, preferably -0.8 ~ -0.6；25 DEG C of needle penetrations are 150~
200 1/10mm, preferably 160~180 1/10mm；Ic value be 0.25 ~ 0.35, preferably 0.26 ~ 0.32, preferably 0.29 ~
0.32。
The SBS can be one or more of linear, star-like or mixed type, and preferred molecular weight is 100,000 or so
Type SBS.
The stabilizer is sulphur, can be sublimed sulfur, sedimentation sulphur and purification sulphur.
The rare earth promotor is one or more of the dithiocarbamates containing rare earth ion
Mixture, the rare earth are selected from least one of neodymium, europium, cerium, lanthanum.
The preparation method of polymer modified asphalt of the invention, including following content:
(1) matrix pitch, colloform texture are adjusted into component and heats fusing respectively, by certain harmonic proportion mixing, 150~
It at 160 DEG C, is stirred 1~1.5 hour, obtains reconciliation pitch；
(2) the reconciliation pitch of step (1) preparation shears or grinds 0.5~1.0 controlled at 150~160 DEG C after SBS is added
Hour, stabilizer and rare earth promotor is added, continues to shear or grind 0.5~1.0 hour, be warming up to 175~185 DEG C later,
Continue 2~3h of stirring.
The adding manner of stabilizer described in step (2) and rare earth promotor is to be added in two times, is added for the first time described
It shears or grinds 0.5~1.0 hour after entering SBS, 30%~60% stabilizer and 30%~60% rare earth promotor is added, in institute
It states and continues to shear or grind 0.5~1.0 hour, after being warming up to 175~185 DEG C later, add remaining stabilizer and rare earth
Promotor continues 2~3h of stirring.
Invention also provides a kind of reconciliation pitches, are calculated in mass percent, including following component:
Matrix pitch 15%~80%；It is preferred that 30%~65%；
Colloform texture adjusts component 20%~85%；It is preferred that 35%~70%.
Matrix pitch is the straight asphalt or decompression residuum using the refining of single naphthene base crude；Matrix pitch PI value :-
1.5 ~ -0.5, preferably -1.5 ~ -1.2；Ic value: 0.2 ~ 0.25, preferably 0.24 ~ 0.25；25 DEG C of needle penetrations of matrix pitch are
100~120 1/10mm, 10 DEG C of ductilities are greater than 150cm.
Colloform texture adjusting group is divided into straight asphalt or decompression residuum using the refining of single intermediate base crude；Colloform texture
Adjusting component PI value: 0.5~1.5, preferably 0.8~1.0；25 DEG C of needle penetrations are 120~140 1/10mm；Colloform texture is adjusted
Component softening point is greater than 44 DEG C, and 60 DEG C of dynamic viscosities are greater than 150Pas.
The property of reconciliation pitch: PI value is -1.0 ~ -0.5, preferably -0.8 ~ -0.6；25 DEG C of needle penetrations are 150~200
1/10mm, preferably 160~180 1/10mm；Ic value is 0.25 ~ 0.35, preferably 0.26 ~ 0.32, preferably 0.29 ~ 0.32.
The preparation method of the reconciliation pitch, includes the following steps:
Matrix pitch, colloform texture are adjusted into component and heat fusing respectively, is mixed by the harmonic proportion, at 150~160 DEG C
Under, it is stirred 1~1.5 hour, obtains reconciliation pitch.
Compared with prior art, the present invention has a characteristic that
(1) colloform texture of the invention adjusts component different from traditional expanding material/compatilizer, and colloform texture of the invention is adjusted
Component is preferably a kind of decompression residuum, and inventors be surprised to learn that this decompression residuum and both matrix pitches through special screening
Between be different from general asphalt stock, the needle penetration of pitch can be significantly improved after mixing.
(2) colloform texture of the invention, which adjusts component, can not only change the needle penetration of matrix pitch, can also be on composition
The composition of matrix pitch is mutually complementary, keeps four components do match of pitch after reconciling reasonable, easily modified.
(3) traditional expanding material/compatilizer is vacuum distillate, extraction oil etc., and starting enters in polymer modified asphalt
It spends adjustment effect and is swollen the effect of SBS, but the poor adhesion of vacuum distillate, extraction oil and building stones.And the present invention uses and subtracts
It presses residual oil to replace traditional compatilizer, the adhesion property of modified pitch and building stones can be improved, there is modified pitch excellent
Service performance.
(4) rare earth compound improve processing of high molecular material and in terms of have effects that uniqueness, and assign
Give the new specific function of high molecular material.The present invention cooperates rare earth promotor and stabilizer, can improve polymer well
Crosslinking rate shortens polymer modified asphalt and reaches time of stable storing, when slowing down modified pitch under the high temperature conditions long
Between aging, improve the extension property of pitch.
(5) Inventive polymers modified pitch compatibility is good, high temperature performance, anti-aging property, anti-fatigue performance and road
With function admirable, properties fully meet the " technical requirement (JTG F40-2004) of SBS modified pitch.
Detailed description of the invention
Fig. 1 is partially to reconcile the property of pitch in embodiment 1, in which:
1 adjusts component (P140) harmonic curve for matrix pitch (P120) and colloform texture；
2 adjust component (P140) harmonic curve for matrix pitch (P110) and colloform texture；
3 adjust component (P140) harmonic curve for matrix pitch (P100) and colloform texture；
Fig. 2 is partially to reconcile the property of pitch in embodiment 1, in which:
4 adjust component (P120) harmonic curve for matrix pitch (P120) and colloform texture；
5 adjust component (P120) harmonic curve for matrix pitch (P110) and colloform texture；
6 adjust component (P120) harmonic curve for matrix pitch (P100) and colloform texture；
Wherein P represents 25 DEG C of needle penetrations, such as: P100 is needle penetration (25 DEG C) 100 0.1mm.
Specific embodiment
Below will by means of embodiment, the present invention is further illustrated, but following embodiment is not constituted to of the invention
Limitation.Wherein the percentage composition of the material is mass percentage, on the basis of modified bitumen product.
Embodiment 1 prepares reconciliation pitch
It is shown in Table 1-1, table 1-2 lists matrix pitch respectively, colloform texture adjusts component and the property of Jingmen extraction oil.By base
Matter pitch and colloform texture adjust component and heat fusing respectively, mix in ratio shown in table 2, under the conditions of 155 DEG C, stir 1h,
Reconciliation pitch is obtained, raw material and the asphaltic nature that reconciles are shown in Fig. 1, Fig. 2, table 1-1,1-2 and table 2.Wherein matrix pitch is derived from cycloalkanes
Base oil, colloform texture adjust component and are derived from intermediate base crude.
Table 1-1 feedstock property
| Project | Matrix pitch (P100) | Matrix pitch (P110) | Matrix pitch (P120) | Colloform texture adjusts component (P120) | Colloform texture adjusts component (P140) |
| Needle penetration (25 DEG C)/0.1mm | 100 | 110 | 120 | 120 | 140 |
| PI value | -1.24 | -1.28 | -1.45 | 0.9 | 0.8 |
| Softening point/DEG C | 44.0 | 43.5 | 43.2 | 50.0 | 48.0 |
| Ductility (10 DEG C)/cm | > 150 | > 150 | > 150 | 8 | 10 |
| 60 DEG C of dynamic viscosity/Pas | 140 | 132 | 125 | 225 | 210 |
| IC(Gastel index) | 0.242 | 0.245 | 0.246 | 0.782 | 0.753 |
Extract oil nature out in the Jingmen table 1-2
| Project | Property |
| Flash-point/DEG C | 243 |
| Wax content, % | 1.10 |
| Saturation point, % | 17.61 |
| Fragrance point, % | 55.16 |
| Colloid, % | 27.07 |
| Asphalitine, % | 0.16 |
The reconciliation asphaltic nature of table 2
| Project | Reconciliation pitch -1 | Reconciliation pitch -2 | Reconciliation pitch -3 | Reconciliation pitch -4 | Reconciliation pitch -5 | Reconciliation pitch -6 | Reconciliation pitch -7 |
| Matrix pitch | Matrix pitch (P100) | Matrix pitch (P100) | Matrix pitch (P120) | Matrix pitch (P120) | Matrix pitch (P100) | Matrix pitch (P100) | Matrix pitch (P100) |
| Colloform texture adjusting group Point | Colloform texture adjusting group Divide (P140) | Colloform texture adjusting group Divide (P140) | Colloform texture adjusting group Divide (P140) | Colloform texture adjusting group Divide (P120) | / | / | Matrix pitch (P120) |
| Matrix pitch, % | 65 | 55 | 55 | 55 | 94 | 65 | 65 |
| Colloform texture adjusting group Point, % | 35 | 45 | 45 | 45 | / | / | 35 |
| Jingmen extraction oil, % | / | / | / | / | 6 | 35 | / |
| Needle penetration (25 DEG C)/ 0.1mm | 150 | 165 | 180 | 150 | 148 | One needle is on earth | 107 |
| PI value | -0.7 | -0.6 | -0.75 | -0.65 | -1.8 | / | -1.25 |
| Softening point/DEG C | 44 | 41 | 39 | 42 | 38 | 24 | 43 |
| Ductility (10 DEG C)/cm | > 150 | > 150 | > 150 | > 150 | > 150 | > 150 | > 150 |
| 60 DEG C of dynamic viscosities/ Pa·s | 108 | 112 | 85 | 123 | 88 | 35 | 130 |
| IC(colloid is unstable for value Determine index) | 0.292 | 0.311 | 0.315 | 0.318 | 0.22 | 0.18 | 0.24 |
By the data of the above table 1 and table 2 it can be seen that when it is 0.2 ~ 0.25 that matrix pitch PI value, which is -1.5 ~ -0.5, Ic value,
It adds the colloform texture that PI value is 0.5 ~ 1.5 and adjusts component, as a result obtained reconciliation Asphalt Penetration enters compared with two kinds of raw material needles
Degree is obviously improved.From Gastel index Ic as can be seen, the I of reconciliation pitchCValue is preferably in 0.26-0.32 range
Interior, the compatibility of reconciliation pitch and high molecular polymer is improved, easily modified.
Embodiment 2 prepares polymer modified asphalt
It will reconcile pitch, and be heated to 160 DEG C, sheared after SBS is added or grinding 0.5 hour, 1/2 stabilizer and 1/2 is added
Promotor continues to shear or grind 0.5 hour, be warming up to 185 DEG C later, add remaining stabilizer and promotor, continues
Polymer modified asphalt can be obtained in stirring 3h.
The composition of 3 embodiment 2-1,2-2 of table and comparative example 1,2 polymer modified asphalts
| Polymer modified asphalt | Reconciliation pitch and content | SBS and content | Stabilizer and content | Promotor and content |
| Embodiment 2-1 | Reconciliation pitch -1,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 2-2 | Reconciliation pitch -4,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Comparative example 1 | Reconciliation pitch -5,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Comparative example 2 | Reconciliation pitch -5,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Tetra methylthiuram, 0.8% |
| Comparative example 3 | Reconciliation pitch -6,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Comparative example 4 | Reconciliation pitch -7,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
Embodiment 2-1,2-2 and 1,2,3,4 polymer modified asphalt of comparative example composition are shown in Table 3, and performance is shown in Table 4.
4 polymer modified asphalt performance of table
| Project | Embodiment 2-1 | Embodiment 2-2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Ⅰ-C |
| Reconciliation pitch ICValue | 0.292 | 0.318 | 0.22 | 0.22 | 0.18 | 0.24 | |
| Needle penetration (25 DEG C)/0.1mm | 68 | 68 | 73 | 72 | 243 | 62 | 60-80 |
| Softening point/DEG C | 65 | 68 | 60 | 61 | 33 | 68 | ≮55 |
| Ductility (5 DEG C)/cm | 43 | 43 | 45 | 40 | > 100 | 40 | ≮30 |
| Elasticity restores (25 DEG C), % | 93 | 95 | 94 | 94 | 45 | 95 | ≮65 |
| Storage stability isolation (163 DEG C, 48h) softening point difference/DEG C | 0 | 0.2 | 3.0 | 3.5 | 3.2 | 5.5 | ≯2.5 |
| Thin Film Oven Test TFOT (163 DEG C, 5h) | |||||||
| Penetration ratio, % | 75 | 65 | 70 | 69 | 65 | 77 | ≮60 |
| Ductility (5 DEG C)/cm | 30 | 25 | 28 | 23 | 55 | 28 | ≮20 |
| Cementation test | |||||||
| The percentage of stone quantity, % are accounted for by the stone quantity that vibration is fallen | 15 | 18 | 30 | 32 | 85 | 25 | - |
| Situation up to standard | Ⅰ-C | Ⅰ-C | It is unsatisfactory for | It is unsatisfactory for | It is unsatisfactory for | It is unsatisfactory for |
Cementation test: referring to T0660- in " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTJ052-2000)
The test of the low temperature bonding of 2000 pitches and building stones.
By upper 4 data of table it can be seen that using preparation process of the invention, SBS modified pitch indices are all satisfied I-C
Technical requirement.It can be seen that from cementation test result and traditional compatilizer, the modified drip of SBS replaced using decompression residuum
The green adhesion property with building stones is improved significantly.
The composition of 5 embodiment 2-1 of table, 3,4,5 polymer modified asphalt of embodiment
| Polymer modified asphalt | Reconciliation pitch and content | SBS and content | Stabilizer and content | Promotor and content |
| Embodiment 2-1 | Reconciliation pitch -1,92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 3 | Reconciliation pitch -1,94.4% | YH-791,4% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 4 | Reconciliation pitch -1,94.4% | YH-791H, 4% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 5 | Reconciliation pitch -1,94.4% | YH-791H, 4% | Sublimed sulfur, 0.8% | Diethyldithiocar bamic acid neodymium, 0.8% |
Embodiment 2-1 and 3,4,5 polymer modified asphalt of embodiment composition are shown in Table 5, and performance is shown in Table 6.
6 embodiment 2-1 of table, 3,4,5 polymer modified asphalt performance of embodiment
| Project | Embodiment 2-1 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Ⅰ-C |
| Needle penetration (25 DEG C)/0.1mm | 68 | 72 | 72 | 71 | 60-80 |
| Softening point/DEG C | 65 | 63 | 65 | 65 | ≮55 |
| Ductility (5 DEG C)/cm | 43 | 40 | 38 | 39 | ≮30 |
| Elasticity restores (25 DEG C), % | 93 | 92 | 94 | 94 | ≮65 |
| Storage stability isolation (163 DEG C, 48h) softening point difference/DEG C | 0 | 0 | 0.5 | 0.3 | ≯2.5 |
| Thin Film Oven Test TFOT (163 DEG C, 5h) | |||||
| Penetration ratio, % | 75 | 73 | 72 | 73 | ≮60 |
| Ductility (5 DEG C)/cm | 30 | 21 | 22 | 23 | ≮20 |
| Situation up to standard | Ⅰ-C | Ⅰ-C | Ⅰ-C | Ⅰ-C |
Illustrated by upper table data: using preparation method of the invention, isolation softening point difference is all satisfied finger after the storage of SBS modified pitch
Mark requires.The SBS of same dose is added, the modified pitch extensibility using YH-791H preparation is better than YH-791.
The composition of 7 embodiment 6-11 polymer modified asphalt of table
| Polymer modified asphalt | Reconciliation pitch and content | SBS and content | Stabilizer and content | Promotor and content |
| Embodiment 6 | Reconciliation pitch -3, 92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 7 | Reconciliation pitch -2, 92.4% | YH-791,6% | Sublimed sulfur, 0.8% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 8 | Reconciliation pitch -2, 92.7% | YH-791,6% | Sublimed sulfur, 0.5% | Lanthanum diethyldithiocarbamate, 0.8% |
| Embodiment 9 | Reconciliation pitch -2, 92.5% | YH-791,6% | Sublimed sulfur, 0.5% | Lanthanum diethyldithiocarbamate, 1.0% |
| Embodiment 10 | Reconciliation pitch -2, 92.5% | YH-791,6% | Sedimentation sulphur, 0.5% | Lanthanum diethyldithiocarbamate, 1.0% |
| Embodiment 11 | Reconciliation pitch -2, 92.5% | YH-791,6% | Sublimed sulfur, 0.5% | Lanthanum diethyldithiocarbamate, diethyldithiocar bamic acid the neodymium, (ratio of two of them promotor For 1:1), 1.0% |
6,7,8,9,10,11 polymer modified asphalt of embodiment composition is shown in Table 7, and performance is shown in Table 8.
8 embodiment 6-11 polymer modified asphalt performance of table
| Project | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | Embodiment 11 | Ⅰ-B |
| Needle penetration (25 DEG C)/0.1mm | 96 | 85 | 88 | 89 | 87 | 88 | 80-100 |
| Softening point/DEG C | 58 | 60 | 59 | 60 | 60 | 60 | ≮50 |
| Ductility (5 DEG C)/cm | 58 | 52 | 50 | 55 | 52 | 52 | ≮40 |
| Elasticity restores (25 DEG C), % | 92 | 94 | 93 | 93 | 92 | 94 | ≮60 |
| Storage stability isolation (163 DEG C, 48h) softening point difference/DEG C | 0.3 | 0.2 | 0.1 | 0.2 | 0.1 | 0.2 | ≯2.5 |
| Thin Film Oven Test TFOT (163 DEG C, 5h) | |||||||
| Penetration ratio, % | 70 | 72 | 73 | 75 | 71 | 72 | ≮55 |
| Ductility (5 DEG C)/cm | 34 | 30 | 28 | 34 | 32 | 30 | ≮25 |
| Situation up to standard | Ⅰ-B | Ⅰ-B | Ⅰ-B | Ⅰ-B | Ⅰ-B | Ⅰ-B |
Illustrate: by above embodiment as can be seen, smaller for PI, Gastel index Ic value is not in 0.26-0.32
It is steady can not only to prepare thermmal storage using the preparation method of SBS modified pitch provided by the invention for the naphthenic residual oil of range
Fixed, properties fully meet " technical requirement (JTG F40-2004) of SBS modified pitch, and modified pitch and stone
The adhesiveness of material is good, excellent road performance.
Claims (21)
1. a kind of polymer modified asphalt, is calculated in mass percent, including following component:
Reconciliation pitch 92%~95%；
SBS 4%~6%；
Stabilizer 0.5%~1.0%；
Rare earth promotor 0.5%~1.0%.
2. polymer modified asphalt according to claim 1, it is characterised in that be wherein free of expanding material, the expanding material is excellent
It is selected as the distillate rich in aromatic hydrocarbons, particularly preferably extraction oil.
3. polymer modified asphalt according to claim 1, it is characterised in that the reconciliation pitch, with mass percent
Meter, including following component:
Matrix pitch 15%~80%；It is preferred that 30%~65%；
Colloform texture adjusts component 20%~85%；It is preferred that 35%~70%.
4. polymer modified asphalt according to claim 3, it is characterised in that the matrix pitch is to use single cycloalkanes
The straight asphalt or decompression residuum of base crude refining.
5. polymer modified asphalt according to claim 3, it is characterised in that the matrix pitch PI value: -1.5 ~ -0.5,
Preferably -1.5 ~ -1.2；Ic value: 0.2 ~ 0.25, preferably 0.24 ~ 0.25.
6. polymer modified asphalt according to claim 3, it is characterised in that 25 DEG C of needle penetrations of the matrix pitch are 100
~120 1/10mm, 10 DEG C of ductilities are greater than 150cm.
7. polymer modified asphalt according to claim 3, it is characterised in that the colloform texture adjusting group, which is divided into, adopts
The straight asphalt or decompression residuum refined with single intermediate base crude.
8. polymer modified asphalt according to claim 3, it is characterised in that the colloform texture adjusts component PI value:
0.5~1.5, preferably 0.8~1.0；25 DEG C of needle penetrations are 120~140 1/10mm.
9. polymer modified asphalt according to claim 3, it is characterised in that the colloform texture adjusts component softening
Point is greater than 44 DEG C, and 60 DEG C of dynamic viscosities are greater than 150Pas.
10. polymer modified asphalt according to claim 1, it is characterised in that it is described reconcile pitch property: PI value be-
1.0 ~ -0.5, preferably -0.8 ~ -0.6；25 DEG C of needle penetrations are 150~200 1/10mm, preferably 160~180 1/10mm；Ic
Value is 0.25 ~ 0.35, preferably 0.26 ~ 0.32, preferably 0.29 ~ 0.32.
11. polymer modified asphalt according to claim 1, it is characterised in that the stabilizer is sulphur；Described
Rare earth promotor is one or more of the dithiocarbamates containing rare earth ion mixture, the rare earth
Selected from least one of neodymium, europium, cerium, lanthanum.
12. a kind of preparation method of any one of -11 polymer modified asphalts according to claim 1, including following content:
(1) matrix pitch, colloform texture are adjusted into component and heats fusing respectively, mixed by the harmonic proportion, 150~160
It at DEG C, is stirred 1~1.5 hour, obtains reconciliation pitch；
(2) the reconciliation pitch of step (1) preparation shears or grinds 0.5~1.0 controlled at 150~160 DEG C after SBS is added
Hour, stabilizer and rare earth promotor is added, continues to shear or grind 0.5~1.0 hour, be warming up to 175~185 DEG C later,
Continue 2~3h of stirring.
13. preparation method according to claim 12, it is characterised in that stabilizer described in step (2) and rare earth promotor
Adding manner be to be added in two times, for the first time after SBS shearing or grinding 0.5~1.0 hour is added, be added 30%~60%
Stabilizer and 30%~60% rare earth promotor, continuing shear or grind 0.5~1.0 hour, after being warming up to 175~185 DEG C
, remaining stabilizer and rare earth promotor are added, 2~3h of stirring is continued.
14. a kind of reconciliation pitch, is calculated in mass percent, including following component:
Matrix pitch 15%~80%；It is preferred that 30%~65%；
Colloform texture adjusts component 20%~85%；It is preferred that 35%~70%.
15. reconciliation pitch according to claim 14, it is characterised in that the matrix pitch is to use single cycloalkanes base
The straight asphalt or decompression residuum of oil refining.
16. reconciliation pitch according to claim 14, it is characterised in that the matrix pitch PI value: -1.5 ~ -0.5, preferably
It is -1.5 ~ -1.2；Ic value: 0.2 ~ 0.25, preferably 0.24 ~ 0.25.
17. reconciliation pitch according to claim 14, it is characterised in that 25 DEG C of needle penetrations of the matrix pitch be 100~
120 1/10mm, 10 DEG C of ductilities are greater than 150cm.
18. reconciliation pitch according to claim 14, it is characterised in that the colloform texture adjusting group is divided into using single
The straight asphalt or decompression residuum of one intermediate base crude refining.
19. reconciliation pitch according to claim 14, it is characterised in that the colloform texture adjusting component PI value: 0.5
~1.5, preferably 0.8~1.0；25 DEG C of needle penetrations are 120~140 1/10mm.
20. reconciliation pitch according to claim 14, it is characterised in that it is big that the colloform texture adjusts component softening point
In 44 DEG C, 60 DEG C of dynamic viscosities are greater than 150Pas.
21. the 4 reconciliation pitch according to claim 1, it is characterised in that it is described reconcile pitch property: PI value be -1.0 ~ -
0.5, preferably -0.8 ~ -0.6；25 DEG C of needle penetrations are 150~200 1/10mm, preferably 160~180 1/10mm；Ic value is
0.25 ~ 0.35, preferably 0.26 ~ 0.32, preferably 0.29 ~ 0.32.
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Effective date of registration: 20231007 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |